Measurement of the Cross Sections of Ξ_{c}^{0} and Ξ_{c}^{+} Baryons and of the Branching-Fraction Ratio BR(Ξ_{c}^{0}→Ξ^{-}e^{+}ν_{e})/BR(Ξ_{c}^{0}→Ξ^{-}π^{+}) in pp Collisions at sqrt[s]=13 TeV

The p_{T}-differential cross sections of prompt charm-strange baryons Ξ_{c}^{0} and Ξ_{c}^{+} were measured at midrapidity (|y|<0.5) in proton-proton (pp) collisions at a center-of-mass energy sqrt[s]=13  TeV with the ALICE detector at the LHC. The Ξ_{c}^{0} baryon was reconstructed via both the semileptonic decay (Ξ^{-}e^{+}ν_{e}) and the hadronic decay (Ξ^{-}π^{+}) channels. The Ξ_{c}^{+} baryon was reconstructed via the hadronic decay (Ξ^{-}π^{+}π^{+}) channel. The branching-fraction ratio BR(Ξ_{c}^{0}→Ξ^{-}e^{+}ν_{e})/BR(Ξ_{c}^{0}→Ξ^{-}π^{+})=1.38±0.14(stat)±0.22(syst) was measured with a total uncertainty reduced by a factor of about 3 with respect to the current world average reported by the Particle Data Group. The transverse momentum (p_{T}) dependence of the Ξ_{c}^{0}- and Ξ_{c}^{+}-baryon production relative to the D^{0} meson and to the Σ_{c}^{0,+,++}- and Λ_{c}^{+}-baryon production are reported. The baryon-to-meson ratio increases toward low p_{T} up to a value of approximately 0.3. The measurements are compared with various models that take different hadronization mechanisms into consideration. The results provide stringent constraints to these theoretical calculations and additional evidence that different processes are involved in charm hadronization in electron-positron (e^{+}e^{-}) and hadronic collisions.

Λ_{c}^{+} Production and Baryon-to-Meson Ratios in pp and p-Pb Collisions at sqrt[s_{NN}]=5.02 TeV at the LHC

The prompt production of the charm baryon Λ_{c}^{+} and the Λ_{c}^{+}/D^{0} production ratios were measured at midrapidity with the ALICE detector in pp and p-Pb collisions at sqrt[s_{NN}]=5.02  TeV. These new measurements show a clear decrease of the Λ_{c}^{+}/D^{0} ratio with increasing transverse momentum (p_{T}) in both collision systems in the range 2<p_{T}<12  GeV/c, exhibiting similarities with the light-flavor baryon-to-meson ratios p/π and Λ/K_{S}^{0}. At low p_{T}, predictions that include additional color-reconnection mechanisms beyond the leading-color approximation, assume the existence of additional higher-mass charm-baryon states, or include hadronization via coalescence can describe the data, while predictions driven by charm-quark fragmentation processes measured in e^{+}e^{-} and e^{-}p collisions significantly underestimate the data. The results presented in this Letter provide significant evidence that the established assumption of universality (colliding-system independence) of parton-to-hadron fragmentation is not sufficient to describe charm-baryon production in hadronic collisions at LHC energies.

The burden of COVID-19 infection in a rural Tamil Nadu community

Background

There have been over 30 million cases of COVID-19 in India and over 430,000 deaths. Transmission rates vary from region to region, and are influenced by many factors including population susceptibility, travel and uptake of preventive measures. To date there have been relatively few studies examining the impact of the pandemic in lower income, rural regions of India. We report on a study examining COVID-19 burden in a rural community in Tamil Nadu.

Methods

The study was undertaken in a population of approximately 130,000 people, served by the Rural Unit of Health and Social Affairs (RUHSA), a community health center of CMC, Vellore. We established and evaluated a COVID-19 PCR-testing programme for symptomatic patients—testing was offered to 350 individuals, and household members of test-positive cases were offered antibody testing. We also undertook two COVID-19 seroprevalence surveys in the same community, amongst 701 randomly-selected individuals.

Results

There were 182 positive tests in the symptomatic population (52.0%). Factors associated with test-positivity were older age, male gender, higher socioeconomic status (SES, as determined by occupation, education and housing), a history of diabetes, contact with a confirmed/suspected case and attending a gathering (such as a religious ceremony, festival or extended family gathering). Amongst test-positive cases, 3 (1.6%) died and 16 (8.8%) suffered a severe illness. Amongst 129 household contacts 40 (31.0%) tested positive. The two seroprevalence surveys showed positivity rates of 2.2% (July/Aug 2020) and 22.0% (Nov 2020). 40 tested positive (31.0%, 95% CI: 23.02 − 38.98). Our estimated infection-to-case ratio was 31.7.

Conclusions

A simple approach using community health workers and a community-based testing clinic can readily identify significant numbers of COVID-19 infections in Indian rural population. There appear, however, to be low rates of death and severe illness, although vulnerable groups may be under-represented in our sample. It’s vital these lower income, rural populations aren’t overlooked in ongoing pandemic monitoring and vaccine roll-out in India.

Experimental Evidence for an Attractive p-ϕ Interaction

This Letter presents the first experimental evidence of the attractive strong interaction between a proton and a ϕ meson. The result is obtained from two-particle correlations of combined p-ϕ⊕ p[over ¯]-ϕ pairs measured in high-multiplicity pp collisions at sqrt[s]=13  TeV by the ALICE Collaboration. The spin-averaged scattering length and effective range of the p-ϕ interaction are extracted from the fully corrected correlation function employing the Lednický-Lyuboshits approach. In particular, the imaginary part of the scattering length vanishes within uncertainties, indicating that inelastic processes do not play a prominent role for the p-ϕ interaction. These data demonstrate that the interaction is dominated by elastic p-ϕ scattering. Furthermore, an analysis employing phenomenological Gaussian- and Yukawa-type potentials is conducted. Under the assumption of the latter, the N-ϕ coupling constant is found to be g_{N-ϕ}=0.14±0.03(stat)±0.02(syst). This work provides valuable experimental input to accomplish a self-consistent description of the N-ϕ interaction, which is particularly relevant for the more fundamental studies on partial restoration of chiral symmetry in nuclear medium.

Determinants of Treatment Adherence Among Patients Living With Noncommunicable Diseases: A Mixed-Method Study in a Rural Area of West Bengal

The multisectoral impact of the COVID-19 pandemic can impair treatment adherence of patients with noncommunicable diseases (NCDs). This mixed-method study, conducted from November 2020 to January 2021, assessed the quantum of their treatment adherence and its determinants in rural West Bengal. Quantitative data were collected from 213 NCD patients while qualitative exploration for barriers of treatment adherence was conducted as 6 in-depth Interviews. Treatment adherence was assessed by “Medication Compliance Questionnaire” and “Adherence to Healthy Lifestyle and Follow-up Advice” Questionnaire. A total of 39.4% were nonadherent to medications while 67.1% had nonadherence to healthy lifestyle and follow-up advice. Significant predictors associated with nonadherence were increasing age, female gender, lower socioeconomic status, decreasing patient empowerment, and decreasing trust in the medical profession. Economic crisis, fear of contagion, and nonavailability of investigation facilities were some new emerging barriers in addition to preexisting barriers of treatment adherence. Therefore, measures for improving patient empowerment and patient–provider relationship by motivation and counseling, taking proper care of vulnerable patients affected by the pandemic, and correcting deficiencies at the health-system level should be given utmost priority.

Comparative Analysis of Municipal Solid Waste Management in Kochi and Indore

Conventionally, the general understanding of Municipal Solid Waste (MSW) management is collecting solid waste and its disposal through its developed channels or outside contracts. However, depending upon the situation and context, the definition of MSW varies between countries across the globe. For instance, in countries like Singapore and Japan, Municipal Solid Waste is defined as general waste. However, while categorizing the general waste, the industrial waste component is considered for Singapore and not for Japan. Similarly, different countries associate different definitions for MSW and it becomes a difficult challenge to suggest a single unified definition applicable for all countries. This paper aims to do a comparative analysis of Waste management in Tier-II cities of India, Kochi and Indore. Kochi is ranked 372nd and the latter 1st according to the latest Swachh Survekshan undertaken as part of the Swachh Bharat Abhiyan (Urban) by the Ministry of Housing and Urban Affairs. This paper highlights what the key elements missing out in the management of waste in Kochi from the reference perspective of Indore and identifying the measures Kochi needs to undertake to improve its ranking among the cleanest city in India are.

Multiharmonic Correlations of Different Flow Amplitudes in Pb-Pb Collisions at sqrt[s_{NN}]=2.76 TeV

The event-by-event correlations between three flow amplitudes are measured for the first time in Pb-Pb collisions, using higher-order symmetric cumulants. We find that different three-harmonic correlations develop during the collective evolution of the medium when compared to correlations that exist in the initial state. These new results cannot be interpreted in terms of previous lower-order flow measurements since contributions from two-harmonic correlations are explicitly removed in the new observables. A comparison to Monte Carlo simulations provides new and independent constraints for the initial conditions and system properties of nuclear matter created in heavy-ion collisions.

Care-Related Quality of Life of Caregivers of Beta-Thalassemia Major Children: An Epidemiological Study in Eastern India

Caregivers are the persons who provide care at the time of distress or illness. They face many stress and strain to provide the best possible medical care for their children. There are very few studies that explored the care-related quality of life (CarerQoL) of the caregivers of thalassemic children and its correlates. With this background, the current study was designed to explore the CarerQoL of the caregivers of β-Thalassemia Major (β-TM) children and its various correlates. It was a cross-sectional observational study conducted among caregivers of β-TM children attending a tertiary care health facility of Eastern India in between May 2016 and April 2017 with a structured schedule. The median CarerQoL score was found to be 5 with an interquartile range of 4–7 (range: 11). In the final multivariable logistic regression model, care receivers’ (thalassemic children) age [adjusted odds ratio (AOR): 2.2 (1.2–4.2)], spleen status [AOR: 4.1 (2.0–8.7)], blood transfusion frequency [AOR: 2.1 (1.1–3.9)], and quality of life (QoL) [AOR: 3.0 (1.6–5.5)] and caregivers’ educational level [AOR: 2.3 (1.2–4.1)], perceived social discrimination [AOR: 2.3 (1.3–4.1)], debt [AOR: 2.3 (1.2–4.3)], nongovernmental organization assistance [AOR: 2.0 (1.0–4.0)], and wage loss due to seeking treatment [AOR: 1.9 (1.1–3.4)] were significant predictors of CarerQoL of the study participants adjusted with their age, sex, working status, per-capita monthly income, knowledge level related to the disease, and care receivers’ comorbidity status. To conclude, CarerQoL of the study participants were significantly associated with QoL of their wards. Other significant associates of CarerQoL were caregivers’ education level, financial profile, patients’ age, and their clinico-therapeutic profile.

Soft-Dielectron Excess in Proton-Proton Collisions at sqrt[s]=13 TeV

A measurement of dielectron production in proton-proton (pp) collisions at sqrt[s]=13  TeV, recorded with the ALICE detector at the CERN LHC, is presented in this Letter. The data set was recorded with a reduced magnetic solenoid field. This enables the investigation of a kinematic domain at low dielectron (ee) invariant mass m_{ee} and pair transverse momentum p_{T,ee} that was previously inaccessible at the LHC. The cross section for dielectron production is studied as a function of m_{ee}, p_{T,ee}, and event multiplicity dN_{ch}/dη. The expected dielectron rate from hadron decays, called hadronic cocktail, utilizes a parametrization of the measured η/π^{0} ratio in pp and proton-nucleus collisions, assuming that this ratio shows no strong dependence on collision energy at low transverse momentum. Comparison of the measured dielectron yield to the hadronic cocktail at 0.15<m_{ee}<0.6  GeV/c^{2} and for p_{T,ee}<0.4  GeV/c indicates an enhancement of soft dielectrons, reminiscent of the "anomalous" soft-photon and soft-dilepton excess in hadron-hadron collisions reported by several experiments under different experimental conditions. The enhancement factor over the hadronic cocktail amounts to 1.61±0.13(stat)±0.17(syst,data)±0.34(syst,cocktail) in the ALICE acceptance. Acceptance-corrected excess spectra in m_{ee} and p_{T,ee} are extracted and compared with calculations of dielectron production from hadronic bremsstrahlung and thermal radiation within a hadronic many-body approach.

Untargeted metabolomics and DNA barcoding for discrimination of Phyllanthus species

ETHNOPHARMACOLOGICAL RELEVANCE

Phyllanthus species is extensively cultivated and used as edible fruits and herbal drugs. The Phyllanthus species are used extensively as ethnopharmacologically important materials in several countries, especially in Asia. Various Phyllanthus species are broadly used in the Ayurvedic system of medicine and deliberated as bitter, astringent, stomachic, diuretic, febrifuge, deobstruent, and antiseptic, and used for the treatment of digestive, genitourinary, respiratory, skin diseases, hepatopathy, jaundice, and renal calculus in India. Precise authentification of Phyllanthus species is a challenge due to morphological similarities and is important to avoid adulteration found in herbal drugs. Hence, there is a need to establish comprehensive methods for the identification of Phyllanthus species.

AIM OF THE STUDY

In this study, we attempted to integrate untargeted metabolomics to identify species-specific metabolites with traditional phylogenetic analysis for identification and discrimination of nine Phyllanthus species.

MATERIALS AND METHODS

Phyllanthus species such as P. acidus, P. amarus, P. debilis, P. emblica, P. virgatus, P. urinaria, P. lawii, P. myrtifolius, and P. reticulatus were collected. The liquid chromatography coupled mass spectrometry (LC-MS) was performed for untargeted metabolite profiling and MS/MS fragmentation analysis was performed for selected compounds. Further, the barcoding analysis was executed using plastid loci, rpoC1 to integrate with metabolite profiling data.

RESULTS

The Principal Component Analysis (PCA) of leaf metabolites showed distinct clusters in different species. Through further analysis, we have also identified the qualitative and quantitative status of unique metabolites across the species, and the majority of the selected compounds were annotated. The metabolic fingerprinting and the hierarchical clustering indicated that though the P. deblis and P. virgatus are distantly related to each other, they are closely associated with their metabolic profiling. Similarly, P. myrtifolius and P. urinaria are closely related to each other with their metabolic fingerprints than the genetic alignment. Further, we performed barcoding with rpoC1 across nine Phyllanthus species (P. acidus, P. amarus, P. debilis, P. emblica, P. virgatus, P. urinaria, P. lawii, P. myrtifolius, and P. reticulatus). Sequence similarity search in the GenBank database showed rpoC1 barcode loci from nine Phyllanthus species showed significant identity (>97%) with the sequences of various Phyllanthus species.

CONCLUSIONS

The bioactive metabolites and their abundance can be assigned to specific species thereby serving as a biological signature and indicators for potential therapeutic use. This study identified differential expression of 14 secondary metabolites from nine Phyllanthus species. Alkaloid compound zeatin was found specific to P. virgatus and delphinidin-3-O- β -D-glucoside was not found in P. myrtifolius. Barcoding and phylogenetic analysis showed P. acidus is the most genetically distinct among the groups and the sequence pair between P.emblica-P.reticulatus and P.emblica-P.urinaria showed the least difference.

Quantification of Key Retinal Features in Early and Late Age-Related Macular Degeneration Using Deep Learning

PURPOSE

We sought to develop and validate a deep learning model for segmentation of 13 features associated with neovascular and atrophic age-related macular degeneration (AMD).

DESIGN

Development and validation of a deep-learning model for feature segmentation.

METHODS

Data for model development were obtained from 307 optical coherence tomography volumes. Eight experienced graders manually delineated all abnormalities in 2712 B-scans. A deep neural network was trained with these data to perform voxel-level segmentation of the 13 most common abnormalities (features). For evaluation, 112 B-scans from 112 patients with a diagnosis of neovascular AMD were annotated by 4 independent observers. The main outcome measures were Dice score, intraclass correlation coefficient, and free-response receiver operating characteristic curve.

RESULTS

On 11 of 13 features, the model obtained a mean Dice score of 0.63 ± 0.15, compared with 0.61 ± 0.17 for the observers. The mean intraclass correlation coefficient for the model was 0.66 ± 0.22, compared with 0.62 ± 0.21 for the observers. Two features were not evaluated quantitatively because of a lack of data. Free-response receiver operating characteristic analysis demonstrated that the model scored similar or higher sensitivity per false positives compared with the observers.

CONCLUSIONS

The quality of the automatic segmentation matches that of experienced graders for most features, exceeding human performance for some features. The quantified parameters provided by the model can be used in the current clinical routine and open possibilities for further research into treatment response outside clinical trials.

Factors Associated with Intention and Attempt to Quit: A Study among Current Smokers in a Rural Community of West Bengal

Context

Tobacco smoking is one of the preventable causes of death. Global Adult Tobacco Survey 2 report showed that 19% Indian males were current smokers. It is important to find out factors which help smokers on smoking cessation, ultimately to prevent of lung and other morbidities. There are few community-based studies on intention and attempt to quit smoking in rural area.

Aims

The present study aimed to determine the factors associated with intention and attempt to quit smoking among current smokers.

Settings and Design

A cross-sectional study was conducted from June to September 2019 among 198 male daily smokers residing in the rural field practice area of AllH and PH, Kolkata.

Subjects and Methods

After cluster sampling, data were collected by predesigned schedule by the face-to-face interview.

Results

151 (76.3%) study subjects intended to quit smoking. 63 (31.8%) study subjects attempted to quit in last 1 year. Thirty-one (47.5%) showed high-to-medium nicotine dependence. There was a significant association of intention to quit with agriculture as occupation (acquisitive crime [AOR]-2.17, confidence interval [CI]-1.01-4.63), low nicotine dependence (AOR-2.98, CI-1.43-6.21), doctor's advice (AOR = 2.84, CI-1.27-6.33), and family pressure (AOR = 2.16, CI-1.07-4.38). Attempt to quit was significantly associated with low nicotine dependence (AOR = 5.85, CI-2.85-12.00), family pressure (AOR = 2.94, CI-1.47-5.91).

Conclusion

Along with counseling to reduce nicotine dependence, comprehensive approach both from family members as well as health care providers, is vital to escalate the quitting behaviour in smoking habit.

New Limit for Neutrinoless Double-Beta Decay of ^{100}Mo from the CUPID-Mo Experiment

The CUPID-Mo experiment at the Laboratoire Souterrain de Modane (France) is a demonstrator for CUPID, the next-generation ton-scale bolometric 0νββ experiment. It consists of a 4.2 kg array of 20 enriched Li_{2}^{100}MoO_{4} scintillating bolometers to search for the lepton-number-violating process of 0νββ decay in ^{100}Mo. With more than one year of operation (^{100}Mo exposure of 1.17  kg×yr for physics data), no event in the region of interest and, hence, no evidence for 0νββ is observed. We report a new limit on the half-life of 0νββ decay in ^{100}Mo of T_{1/2}>1.5×10^{24}  yr at 90% C.I. The limit corresponds to an effective Majorana neutrino mass ⟨m_{ββ}⟩<(0.31-0.54)  eV, dependent on the nuclear matrix element in the light Majorana neutrino exchange interpretation.

Elliptic Flow of Electrons from Beauty-Hadron Decays in Pb-Pb Collisions at sqrt[s_{NN}]=5.02 TeV

The elliptic flow of electrons from beauty hadron decays at midrapidity (|y|<0.8) is measured in Pb-Pb collisions at sqrt[s_{NN}]=5.02  TeV with the ALICE detector at the LHC. The azimuthal distribution of the particles produced in the collisions can be parametrized with a Fourier expansion, in which the second harmonic coefficient represents the elliptic flow, v_{2}. The v_{2} coefficient of electrons from beauty hadron decays is measured for the first time in the transverse momentum (p_{T}) range 1.3-6  GeV/c in the centrality class 30%-50%. The measurement of electrons from beauty-hadron decays exploits their larger mean proper decay length cτ≈500  μm compared to that of charm hadrons and most of the other background sources. The v_{2} of electrons from beauty hadron decays at midrapidity is found to be positive with a significance of 3.75  σ. The results provide insights into the degree of thermalization of beauty quarks in the medium. A model assuming full thermalization of beauty quarks is strongly disfavored by the measurement at high p_{T}, but is in agreement with the results at low p_{T}. Transport models including substantial interactions of beauty quarks with an expanding strongly interacting medium describe the measurement within uncertainties.

Hazardous practices related to blood borne viral infection transmission among male barbers: A study in a rural area of West Bengal

Background

Barbers are occupationally predisposed to blood borne viral infection (BBVI) such as human immunodeficiency virus, hepatitis B and C. Unhygienic workplaces, improper disinfection and inadequate wound-care can increase the susceptibility of both clients and barbers to BBVI. There is paucity of studies on practices regarding BBVI among barbers, especially in India.

Objectives

To identify the pattern and predictors of practices related to BBVI transmission among male barbers in a rural area of West Bengal.

Methods

A cross-sectional study was conducted from June 2017 to August 2019 in Indas block of Bankura district among 138 male barbers, who were permanent residents and worked for >6 months. Barbers, randomly selected from 10 Gram Panchayats according to probability proportionate to size, were interviewed. Two barbering sessions were observed. Data were analyzed using SPSS version 16 software. Univariate and multiple linear regression was carried out to identify predictors of better practices. P < 0.05 was considered for statistical significance.

Results

Dangerous practices such as reuse of blades (8, 5.8%) and face-towel (77, 55.8%), sale/distribution of used blades (77, 55.8%), improper disinfection of sharps (79, 57.2%), reuse of alum without disinfection (129, 93.5%), and improper wound care (71, 51.4%) were observed. Predictors of better practice regarding BBVI were better attitude regarding BBVI (B = 0.172, standard error [SE] = 0.046, P = 0.000) and increased years of schooling (B = 0.054, SE = 0.021, P = 0.012).

Conclusion

Inimical infection control practices were noticed. They are serving the general people and therefore they should be imbibed with correct BBVI knowledge and must do away with all hazardous practice during their barbering activities.

Reliability of Retinal Pathology Quantification in Age-Related Macular Degeneration: Implications for Clinical Trials and Machine Learning Applications

Purpose

To investigate the interreader agreement for grading of retinal alterations in age-related macular degeneration (AMD) using a reading center setting.

Methods

In this cross-sectional case series, spectral-domain optical coherence tomography (OCT; Topcon 3D OCT, Tokyo, Japan) scans of 112 eyes of 112 patients with neovascular AMD (56 treatment naive, 56 after three anti-vascular endothelial growth factor injections) were analyzed by four independent readers. Imaging features specific for AMD were annotated using a novel custom-built annotation platform. Dice score, Bland-Altman plots, coefficients of repeatability, coefficients of variation, and intraclass correlation coefficients were assessed.

Results

Loss of ellipsoid zone, pigment epithelium detachment, subretinal fluid, and drusen were the most abundant features in our cohort. Subretinal fluid, intraretinal fluid, hypertransmission, descent of the outer plexiform layer, and pigment epithelium detachment showed highest interreader agreement, while detection and measures of loss of ellipsoid zone and retinal pigment epithelium were more variable. The agreement on the size and location of the respective annotation was more consistent throughout all features.

Conclusions

The interreader agreement depended on the respective OCT-based feature. A selection of reliable features might provide suitable surrogate markers for disease progression and possible treatment effects focusing on different disease stages.

Translational Relevance

This might give opportunities for a more time- and cost-effective patient assessment and improved decision making as well as have implications for clinical trials and training machine learning algorithms.

How common are aches and pains among garment factory workers? A work-related musculoskeletal disorder assessment study in three factories of south 24 Parganas district, West Bengal

Context:

Garment Industry is considered to be the second-largest employment sector in India. Occupational health problems among workers are often ignored, work-related musculoskeletal disorders (WMSD) accounts for the majority of it. The leverage of a healthy workforce is indispensable in the smooth running of the country's economic machinery.

Aims:

To find out the prevalence of WMSD among the workers and to assess the relationship of WMSDs with sociodemographic, behavioral, and occupational factors.

Settings and Design:

A cross-sectional study was conducted from June 2017 to August 2019 among 222 workers in three garment factories located in a municipality area of south 24 Parganas District, West Bengal.

Methods and Material:

Sociodemographic and behavioral characteristics, occupational differentials, and morbidity profiles were assessed using a pre-designed, pre-tested schedule.

Statistical Analysis Used:

Data were analyzed by SPSS ver. 16.0. Logistic regression was done to determine the associates of WMSDs.

Results:

Most of the workers were males (70.27%), belonged to the age-group of 36–55 (42.34%) and were illiterate (33.78%). WMSD was prevalent among 70.72% of the workers. Presence of WMSD was significantly associated with educational status{illiterate (OR: 3.59; CI: 1.56–8.22), below secondary (OR-2.89;CI: 1.26-6.62)}, sitting job (OR: 2.02; CI: 1.01-4.03), unsatisfactory working environment (OR: 8.38; CI:1.95–36.06), and level of distress {mild (OR-2.89;CI: 1.26-6.62), moderate-severe (OR: 6.98; CI: 1.46–33.25)}.

Conclusions:

Improving health awareness and periodic health check-up is the need of the hour for the sustenance of the massive workforce, which can be achieved through the integration of basic occupational health services (BOHS) with primary health care (PHC) infrastructure.

Health Care Seeking Behavior in a Scheduled Tribe Community in India: A Mixed Methods Research Using the Framework of Andersen's Behavioral Model

India's scheduled tribe population very often bears the brunt of inequity in accessing health care. The mixed-method research assessed the health care seeking behavior (HSB) of a tribal community residing in the eastern fringes of Kolkata metropolis. An adult, preferably the head, in 209 households was interviewed followed by qualitative interviews with relevant stakeholders. Conceptual framework of Andersen's behavioral model helped in identifying the potential predisposing, enabling, and need factors that influenced HSB. A total of 25.4% respondents reportedly sought informal care during last illness episode. Multivariable hierarchical-regression model (Nagelkerke R² = 0.381) showed that respondents' education level [adjusted odds ratio (AOR) = 2.52], household size (AOR = 3.14), nonenrollment to health insurance (AOR = 2.47), decision making by household head (AOR = 2.40), distance from the nearest urban primary health center (AOR = 3.18), and poor perception to illness severity (AOR = 2.24) were significantly associated to inappropriate HSB. Predominant health system barriers that emerged from qualitative interviews were irregular logistics, unfavorable outpatient timing, absence of female doctors, and nonretention of doctors at local urban primary health center. Community level barriers were poor awareness, self-medication practices, poor health insurance coverage, and poor public transportation. Recognition of these determinants may help in developing health promotion interventions tailored to their needs.

In silico analysis of HOX-associated transcription factors as potential regulators of oral cancer

OBJECTIVE

The objective of this study was identification of the transcription factor binding sites (TFBS) in the promoter of HOX genes and elucidation of the comprehensive interaction of transcription factors (TFs)/genes with HOX.

METHODOLOGY

Promoter sequences of HOXA3, HOXA5, HOXA9, HOXA10, HOXA13, HOXB5, HOXC10, HOXC12, and HOXD10 were analyzed to predict the TFBS and their targets using TRANSFAC, TRRUST, and Harmonizome. Functional analysis of the processed data sets was carried out using DAVID and GATHER gene annotation tools. A network of regulatory interactions was constructed using NetworkAnalyst and a comprehensive illustration of the TF-gene network was constructed with HOX as a central hub using the Encyclopedia of DNA Elements chromatin immunoprecipitation sequencing data. Further, the enriched network was constructed to elucidate the roles of these genes in the various pathways.

RESULTS

Binding sites for E2F1, HNF3α, SP3, and KLF6 were common to promoter regions of all of the HOX genes. The functional annotation and pathway analysis elucidated the regulatory activity of a distinct set of TF-genes in interaction with HOX. A P value ≤.05 and false discovery rate ≤0.01 were considered statistically significant.

CONCLUSION

We have confirmed that the predicted TFBSs in the HOX gene promoters function in transcriptional regulation by modulating target gene activity. TF-gene interactions are crucial to understanding oral carcinogenesis.

Evaluation of village health and nutrition day program in a block of Hooghly District, West Bengal: A mixed-methods approach

Background

Village Health and Nutrition Day (VHND) is a community participation program focusing on pregnant women, lactating mothers, children (0-5 years), and adolescent girls.

Objectives

To assess the status of VHND functioning in the rural areas, and to determine the facilitators and barriers of health care service utilization among the beneficiaries. Also, to explore the challenges faced by the front-line workers while conducting the program.

Methods

A cross-sectional descriptive study with a mixed-methods approach was conducted among the beneficiaries and the service providers in twelve selected VHND sessions from March to July 2019 in Singur, Hooghly district, West Bengal. Both quantitative and qualitative methods of research were applied to assess the status of the functioning of 12 VHNDs.

Results

Among the beneficiaries who attended the sessions; 28.57% were pregnant women, 16.53% were lactating mothers and 17.44% were under-five children. Nonavailability of line-list of adolescent girls and nonavailability of Vitamin A in oil were major observations. Barriers leading to poor service utilization among beneficiaries were the long-distance of the VHND session site, lack of counseling on proper lifestyle practices, poor and inadequate infrastructure. House visits by the Accredited Social Health Activists regarding the information on VHND sessions found to be an important facilitating factor for beneficiaries. Major challenges identified among the healthcare workers were lack of logistics supply, inadequate workforce, and improper the maintenance of the VHND session site.

Conclusion

Proper resource mobilization, maintenance and cleanliness of the session sites, appropriate and wholesome counseling can vastly improve the quality of VHND with the concurrent improvement of maternal and child health.

Quantification of Musculoskeletal Discomfort among Automobile Garage Workers: A Cross-sectional Analytical Study in Chetla, Kolkata, West Bengal

Introduction: The automobile industry is a large and growing industry in India and this industry employs many workers as manufacturers, distributors, retailers, and automobile garage workers. Automobile garage workers suffer from many health problems among which Musculoskeletal Discomfort (MSD) is very common. Aim: To find the proportion of MSD among automobile garage workers in Chetla, Kolkata and to describe the factors associated with the musculoskeletal discomfort. Materials and Methods: The study was a work place based, observational study with cross-sectional design. The study was conducted among 101 automobile garage workers at nine automobile garages of Chetla, Kolkata. A pre-designed, pre-tested structured schedule was used to collect data. The outcome variable was MSD and it was assessed using Cornell Musculoskeletal Discomfort Questionnaire (CMDQ). MSD score was categorised into mild, moderate and severe discomfort. Data was analysed using IBM SPSS Software version 16. Results: Around one-third (30.7%) study participants belonged to the age group 41-50 years with mean (SD) age 43.35 (13.46) years. Knee discomfort was present among 42% study participants while 21% had low back pain according to CMDQ tool. Around three fourth (73.3%) study participants had at least one kind of MSD and around 46.6% had moderate to severe musculoskeletal discomfort. MSD was significantly associated with increasing age and increasing duration of working hours per week in univariate and multivariable logistic regression. Conclusion: The proportion of musculoskeletal discomfort among automobile workers was quite high. Early diagnosis and regular screening of MSD is very much needed to introduce appropriate preventive and treatment measures at appropriate time.

Do the Readings of Digital and Aneroid Sphygmomanometer Concur? A Clinic-Based Study in an Urban Area of South Kolkata

Introduction: Hypertension is a major risk factor for cardiovascular and cerebrovascular diseases. Thus, regular and accurate measurement of Blood Pressure (BP) is essential for its early diagnosis and follow-up. There is a surge in popularity of digital sphygmomanometer due to its convenience of use and functionality. In contrast, the traditional universally accepted sphygmomanometer is aneroid type, hence there arise a need for comparison of digital and universally accepted Aneroid Sphygmomanometer in terms of agreement and correlation. Aim: To evaluate the agreement and correlation between blood pressure measurement by digital and aneroid sphygmomanometer. Materials and Methods: The clinic based cross-sectional study was conducted in the Out Patient Department (OPD) of Urban Heath Centre, All India Institute of Hygiene and Public Health, Kolkata, West Bengal, India. Adults visiting the OPD on two chosen days of the week, between June 2019 to July 2019 were selected using systematic random sampling. A total of 400 participants were included. Agreement and correlation between BP measurements by digital and aneroid sphygmomanometer was analysed by Cohen’s Kappa, Bland Altman Plot along with sensitivity, specificity and predictive values using Microsoft Excel and Statistical Package for the Social Sciences (SPSS) version 16.0. the p-value <0.05 was considered significant for the statistical test in the analysis. Results: Cohen’s Kappa value (0.59) revealed these two tools had moderate agreement in diagnosing hypertension. Sensitivity and specificity of digital sphygmomanometer taking aneroid sphygmomanometer as gold standard is 86% and 83.1% respectively. The BP readings of these two-tools showed moderate correlation as Intraclass Correlation Coefficient (ICC) for Systolic BP (SBP) and Diastolic BP (DBP) were 0.804 and 0.624, respectively. Bland Altman plot showed gross disagreement of SBP findings and disagreement between DBP findings was also noted. Conclusion: Digital device was found to be less accurate in detecting hypertension. Therefore, more similar research work is solicited to verify the accuracy of the very easy to use, the Digital BP monitor.

Diabetic Peripheral Neuropathy and its Association with Diabetes Self-care: A Clinic-based Study in an Urban Health Centre, Kolkata

Introduction: Diabetes mellitus is considered as silent epidemic worldwide including India. Peripheral neuropathy is one of the most common complications of diabetes mellitus. Diabetes Self-Management (DSM) is crucial in mitigating the afflictions of diabetes and it’s after effects. There was dearth of studies in view of Diabetic Peripheral Neuropathy (DPN) and diabetes self-management in Kolkata, West Bengal. Aim: To assess the associations between diabetes self-management and DPN in Type 2 Diabetes Mellitus (T2DM) patients attending an urban health clinic in Kolkata. Materials and Methods: This study was conducted from December 2018 to March 2019 among known case of T2DM patients aged 30 years and above attending the Non-Communicable Disease (NCD) clinic at Chetla, under the purview of field practice areas of Urban Health Unit and Training centre (UHU and TC) of All India Institute of Hygiene and Public Health (AIIH and PH) Kolkata, West Bengal. A pre-designed and pre-tested schedule was used to collect data which were analysed using International Business Machines Statistical Product and Service Solutions (IBM SPSS) version 16.0 and represented using various tables. Results: The mean (SD) age of the participants was 54.89 (8.98) years. About 32.4% of the patients had DPN which was significantly associated with increased duration of T2DM {AOR (95% CI)}={1.52 (1.22-1.91)}, lower glucose management sub-scale score {AOR (95% CI)}={2.84 (1.42-5.67)} and lower healthcare use sub-scale score {AOR (95% CI)}={1.86 (1.05-3.31)}. Conclusion: Early screening and education regarding diabetes self-care would be helpful in glycaemic control and in prevention of DPN.

Attitude and perception of gender equity among students and teachers of a rural school in West Bengal: A mixed-method approach

INTRODUCTION

"Gender" denotes the differences in the social roles of different sexes. This interaction results in variable health outcomes and care-seeking behavior. The present study was conducted to find out the attitude of school-going adolescents regarding gender equity and also to explore teachers' perceptions in this context in a school of tribal belt of West Bengal.

MATERIALS AND METHODS

A cross-sectional, mixed-method study was conducted among the students of classes eight to twelve, chosen by complete enumeration technique, with a predesigned, pretested validated questionnaire. The questionnaire was based on Gender Equitable Men scale and International Men and Gender Equality Survey questionnaire, comprising the following domains: 'Gender restrictions', 'Gender attributes', and 'Gender domination'. The respondents were categorized into 'high', 'moderate', and 'low' groups as per their domain-wise attitude scores. In-depth interviews (IDIs) were conducted among seven teachers chosen purposively. Thematic analysis was done with the qualitative data.

RESULTS

Out of 191 students, 112 were girls (58.6%) and 47 belonged to scheduled tribe category (24.6%). Overall, 170 (89.0%), 80 (41.9%), and 96 (50.3%) students had a high gender-equitable attitude regarding the domains of 'gender restrictions', 'gender attributes', and 'gender domination' respectively. Girls had higher percentage of high gender-equitable attitude in all the three domains (92.0%, 57.1%, and 50.9%, respectively). Regarding 'gender restrictions', 91.2% had high gender-equitable attitude in lower age group, compared to 81.4% in higher age group. Among the lower and higher age groups, 52.7% and 41.9% respectively, had high gender-equitable attitude on 'gender domination'. Gender inequality amidst poverty, women deprived of health care, and gender violence were the major themes derived from the IDIs.

CONCLUSION

Girls had a better attitude toward gender equity. Laws regarding gender dominance and violence should be focused. Conducting intensified awareness campaigns on gender equity and addressing women's right to health is a much-needed timely intervention for the health of womenfolk.

A cross-sectional study on prevalence and determinants of anemia among women of reproductive age in a rural community of West Bengal

Context:

Anemia is a serious public health concern especially in women of reproductive age (WRA) as it causes a high burden of morbidity and mortality and persists through intergenerational cycle. As most of the risk factors are preventable, a thorough understanding of its risk factors is necessary to design better interventions.

Aims:

Current study aimed to estimate the burden of anemia as well as explore determinants of various grades of anemia among WRA in a rural area.

Settings and Design:

A community-based cross-sectional study was conducted among non-pregnant, non-lactating women of reproductive age in rural field practice area of All India Institute of Hygiene and Public Health.

Methods and Materials:

House to house visit was conducted for interviewing with pre-designed pre-tested questionnaire along with blood hemoglobin and anthropometric measurement.

Statistical Analysis Used:

Descriptive statistics and test of significance like multinomial logistic regression and Kruskal-Wallis test (with post-hoc) were used.

Results:

Majority (70.8%) of participants were anemic. Proportion of mild, moderate, and severe anemia were 24.16%, 37.5%, and 9.16%, respectively. Different levels of anemia were significantly associated with higher age, lower education, poor iron-rich food intake, lack of dietary diversity, and adiposity. Significantly low hemoglobin level in both underweight and obesity was noticed suggesting U shaped relationship between BMI and anemia.

Conclusion:

Periodic screening for anemia among WRA especially in both extremes of malnutrition, i.e., undernutrition and obesity should be considered at the policy level. Year-round behaviour change communication campaigns must be carried out for the promotion of necessary food groups in diet.

A study on physical activity by a need-based curriculum for students in a rural area of West Bengal

BACKGROUND

Students must be made aware about the essentiality of optimum level of physical activity and the fact that it is the key to good health and an important technique to prevent and control a lot of noncommunicable diseases including depression and other related mental ill-health.

MATERIALS AND METHODS

It was an institution-based intervention study among 187 Madrasah students of classes VII and VIII, conducted in five-phase assessment of the training needs of Madrasah students on different aspects of healthy lifestyle, development of a need-based module to be used by teachers to impart training of students through classroom setting, training of teachers to use the module to train students, training of students by the trained teachers in classroom setting, and evaluation of effectiveness of the training module.

RESULTS

The mean pretest knowledge score in study Madrasah was 2.64 ± 1.35 (Mean ± SD) and post test score was 4.13 ± 0.88 (Mean ± SD). In paired t-test, t-value was 13.54 and P < 0.05 with effect size of 1.370 (Cohen's d). Practice related to the mean score in pretest was 2.38 ± 1.08 and posttest score was 2.73 ± 1.03. In paired test, t-value was 6.25 and P < 0.05 with effect size of 0.458 (Cohen's d).

CONCLUSIONS

The study revealed the effectiveness of training by teachers using the module developed by the researcher to address significant changes in lifestyle-related issues.

Why are our elderly distressed? A cross-sectional study in a rural community of West Bengal

Context:

Population across the globe are aging rapidly due to demographic transition. More than 50% of the elderly in India suffer from one or more chronic diseases and psychological distress is one of the most common morbidities among them.

Aims and Objective:

This study was conducted with the objective to assess the status of psychological distress among the elderly.

Settings and Design:

A community based, cross-sectional study among 347 elderly aged 60 years and above.

Methods and Materials:

This study was done in 30 villages (clusters) in Singur block of West Bengal. A predesigned and pretested schedule was used to collect data.

Statistical Analysis:

Data were analysed by univariate and multivariate analyses.

Results:

The mean (± SD) age of the elderly was 67.67 (± 7.15) years, majority (67.4%) were in the 60–69 years age group. Most (62.8%) of the elderly were suffering from psychological distress which is significantly associated with below primary education level [AOR (95% CI)] = [25.09 (11.88-52.96)], living without spouse and child [AOR (95% CI) =7.88 (3.90-15.89)], financial dependence [AOR (95% CI) =20.23 (7.58-54.00)], dependent functional activity (assessed by ADL) [AOR (95% CI) =3.84 (1.25-11.76)], and decision for healthcare taken by others [AOR (95% CI)] = [3.84 (1.25-11.76)].

Conclusions:

Alarmingly, the proportion of psychological distress was found to be high among the elderly of this rural area. Therefore, all steps must be taken with special focus on the mental health of the old people so that they may continue to contribute to the upliftment of the society.

Measurement of the Low-Energy Antideuteron Inelastic Cross Section

In this Letter, we report the first measurement of the inelastic cross section for antideuteron-nucleus interactions at low particle momenta, covering a range of 0.3≤p<4  GeV/c. The measurement is carried out using p-Pb collisions at a center-of-mass energy per nucleon-nucleon pair of sqrt[s_{NN}]=5.02  TeV, recorded with the ALICE detector at the CERN LHC and utilizing the detector material as an absorber for antideuterons and antiprotons. The extracted raw primary antiparticle-to-particle ratios are compared to the results from detailed ALICE simulations based on the geant4 toolkit for the propagation of (anti)particles through the detector material. The analysis of the raw primary (anti)proton spectra serves as a benchmark for this study, since their hadronic interaction cross sections are well constrained experimentally. The first measurement of the inelastic cross section for antideuteron-nucleus interactions averaged over the ALICE detector material with atomic mass numbers ⟨A⟩=17.4 and 31.8 is obtained. The measured inelastic cross section points to a possible excess with respect to the Glauber model parametrization used in geant4 in the lowest momentum interval of 0.3≤p<0.47  GeV/c up to a factor 2.1. This result is relevant for the understanding of antimatter propagation and the contributions to antinuclei production from cosmic ray interactions within the interstellar medium. In addition, the momentum range covered by this measurement is of particular importance to evaluate signal predictions for indirect dark-matter searches.

First Germanium-Based Constraints on Sub-MeV Dark Matter with the EDELWEISS Experiment

We present the first Ge-based constraints on sub-MeV/c^{2} dark matter (DM) particles interacting with electrons using a 33.4 g Ge cryogenic detector with a 0.53 electron-hole pair (rms) resolution, operated underground at the Laboratoire Souterrain de Modane. Competitive constraints are set on the DM-electron scattering cross section, as well as on the kinetic mixing parameter of dark photons down to 1  eV/c^{2}. In particular, the most stringent limits are set for dark photon DM in the 6 to 9  eV/c^{2} range. These results demonstrate the high relevance of Ge cryogenic detectors for the search of DM-induced eV-scale electron signals.

Elder abuse and its predictors: a cross-sectional study in a rural area of West Bengal, eastern part of India

BACKGROUND

Elder abuse is an important public health problem hidden from public view in spite of its detrimental effect on physical and mental health. In the last three decades, there is responsiveness toward abuse of children and spouses worldwide but even today abuse and neglect of aged people seem to be the matter of least concern. This study aims to reveal the magnitude of elder abuse and its predictors.

METHODS

This is a cross-sectional study carried out in a community setting among elderly people (60 years and older) from October 2015 to September 2017 in a rural area of West Bengal, eastern part of India. Elder abuse was elicited by questions adapted from the Actual Abuse Tool. Data were analysed using SPSS (version 16.0). Logistic regression analysis was performed to reveal the factors associated with elder abuse.

RESULTS

The study found that 25.6% of the respondents had experienced abuse, psychological abuse being the commonest type. Disability was the most common perceived risk for abuse. Univariate logistic regression showed higher age (70 years and older), female gender, who were Scheduled caste, living in a nuclear family, having more than three children, financially and functionally dependent, who was suffering from depression and multimorbidity had increased odds of being abused. In multivariable logistic regression, people aged above 70 years, living in a nuclear family and dependent for instrumental activities of daily living remained significant predictors of abuse.

CONCLUSION

Around one in four of the respondents was abused in a 1 year duration which implies the urgent need for action. Routine screening for elder abuse at ground level and abuse prevention campaigns can be an important measure to alleviate this hidden problem. Also, there is a need to explore culturally specific forms of elder abuse to provide an age-friendly environment.

Quantification of health-related quality of life among patients with rheumatoid arthritis: An institution-based study in Kolkata, West Bengal

Context:

Rheumatoid arthritis (RA) is a known chronic debilitating disease accounting for a large percentage of disability globally. Pain and stiffness, decreased work function, depression and emotional state alteration, fatigue, disability, and social handicaps are some patient reported outcomes, which if considered with priority the health-related quality of life (HRQOL) of patients with RA could improve.

Aims:

This study was conducted with the aim to assess the HRQOL of the patients with RA and the determinants related to it.

Settings and Design:

This was a cross-sectional study conducted at Rheumatology Department of a tertiary care hospital, Kolkata.

Subjects and Methods:

A total of 252 patients with RA were selected in this study through systematic random sampling.

Statistical Analysis Used:

Data were analyzed using appropriate statistical measures with Statistical Package for the Social Sciences(SPSS) version 16.0 (Armonk, NY: IBM Corporation) software program, version 16.0. Univariate and multivariable logistic regression were carried out.

Results:

In the study, the mean age of the patients was 43.1 years (mean age ±SD: 43.05±10.63 years). The proportion of female subjects was 84.5%. Unsatisfactory QOL was found in 59.9% study participants. In multivariable logistic regression unsatisfactory quality of life was significantly associated to moderate to high functional disability [AOR: 6.04, CI: 2.86, 12.78], disease activity moderate to high [AOR: 5.41, CI: 1.87, 15.69], presence of comorbidity [AOR: 2.90, CI: 1.39, 6.04], extra-articular manifestations [AOR: 3.14, CI: 1.41, 6.96] and delay in starting Disease-Modifying Anti-Rheumatoid Drugs (DMARDs) [AOR: 1.24, CI: 1.08, 1.42].

Conclusion:

Findings of this study clearly indicate the presence of high proportion of unsatisfactory QOL among the patients with RA. Early identification and prompt referral are the key strategies to prevent any permanent damage. Regular follow-up of the patients should be carried out to prevent or delay the disability progression and provide high-quality physical and mental health.

Health seeking behavior of β-thalassemia major children and its attributes: An epidemiological study in Eastern India

Background

Health seeking behaviour (HSB) of thalassemic children is one of the rarely explored entity.

Aim

To explore HSB of β-Thalassemia Major (β-TM) children and its attributes.

Materials and Methods

It was a cross-sectional design, observational study, conducted among 328 β-TM children and their caregivers attending a tertiary care health facility of Kolkata; West Bengal situated in Eastern India in between May 2016 and April 2017 with a structured schedule. The data were analyzed using SPSS 16.0 version.

Results

At the disease onset, 79.6% of them consulted an allopathic doctor. In multivariable logistic regression model, those who were residing in urban area [adjusted odds ratio, AOR: 3.2 (1.2-8.7)], Hindu by religion[AOR: 3.0 (1.2-7.4)], had educated parents [AOR: 3.2 (1.1-9.2)], no family history of the disease [AOR: 3.6 (1.5-8.5)], belonged to higher socio-economic status (Class II, III and IV) [AOR: 2.9 (1.2-6.8)] and had caregiver with satisfactory knowledge related to the disease (≥4)[AOR: 12.2 (5.1-29.6)] were significantly more likely to seek healthcare from an allopathic doctor at onset of the disease. When we consider their HSB till date, 61.0% continued to consult allopathic doctors only. The multivariable determinants of satisfactory HSB till date were place of residence [AOR: 2.7 (1.4-5.2)], caste [AOR: 3.3 (1.6-6.7)], religion [AOR: 3.4 (1.7-6.9)], family history of the disease [AOR: 2.3 (1.2-4.6)] and caregiver's knowledge related to the disease [AOR: 5.3 (3.1-9.2)].

Conclusions

HSB of the study participants were significantly associated with their caregiver's knowledge regarding the disease, parents' educational level, socio-economic status, caste, religion and family history of the disease.

Probing the Effects of Strong Electromagnetic Fields with Charge-Dependent Directed Flow in Pb-Pb Collisions at the LHC

The first measurement at the LHC of charge-dependent directed flow (v_{1}) relative to the spectator plane is presented for Pb-Pb collisions at sqrt[s_{NN}]=5.02  TeV. Results are reported for charged hadrons and D^{0} mesons for the transverse momentum intervals p_{T}>0.2  GeV/c and 3<p_{T}<6  GeV/c in the 5%-40% and 10%-40% centrality classes, respectively. The difference between the positively and negatively charged hadron v_{1} has a positive slope as a function of pseudorapidity η, dΔv_{1}/dη=[1.68±0.49(stat)±0.41(syst)]×10^{-4}. The same measurement for D^{0} and D[over ¯]^{0} mesons yields a positive value dΔv_{1}/dη=[4.9±1.7(stat)±0.6(syst)]×10^{-1}, which is about 3 orders of magnitude larger than the one of the charged hadrons. These measurements can provide new insights into the effects of the strong electromagnetic field and the initial tilt of matter created in noncentral heavy ion collisions on the dynamics of light (u, d, and s) and heavy (c) quarks. The large difference between the observed Δv_{1} of charged hadrons and D^{0} mesons may reflect different sensitivity of the charm and light quarks to the early time dynamics of a heavy ion collision. These observations challenge some recent theoretical calculations, which predicted a negative and an order of magnitude smaller value of dΔv_{1}/dη for both light flavor and charmed hadrons.

Evidence of Spin-Orbital Angular Momentum Interactions in Relativistic Heavy-Ion Collisions

The first evidence of spin alignment of vector mesons (K^{*0} and ϕ) in heavy-ion collisions at the Large Hadron Collider (LHC) is reported. The spin density matrix element ρ_{00} is measured at midrapidity (|y|<0.5) in Pb-Pb collisions at a center-of-mass energy (sqrt[s_{NN}]) of 2.76 TeV with the ALICE detector. ρ_{00} values are found to be less than 1/3 (1/3 implies no spin alignment) at low transverse momentum (p_{T}<2  GeV/c) for K^{*0} and ϕ at a level of 3σ and 2σ, respectively. No significant spin alignment is observed for the K_{S}^{0} meson (spin=0) in Pb-Pb collisions and for the vector mesons in pp collisions. The measured spin alignment is unexpectedly large but qualitatively consistent with the expectation from models which attribute it to a polarization of quarks in the presence of angular momentum in heavy-ion collisions and a subsequent hadronization by the process of recombination.

Bone health and its association with vitamin D and other covariates: A community-based study among women in a rural area of West Bengal

Background

Low bone mineral density (BMD) is implicated in the pathogenesis of osteoporosis and osteopenia, and primarily manifest as fragile bones. This is a rapidly emerging global health problem with increasing prevalence in India.

Objectives

The objective of this was to assess the status of bone health and find its determinants among women aged 40 years and above in a rural population of West Bengal.

Methods

A community-based cross-sectional study was conducted from May 2017 to April 2018 among 260 women aged 40 years and above residing in the selected villages of Singur through multistage random sampling. Each respondent was interviewed using a structured schedule. Serum Vitamin D and calcium levels were investigated. BMD was assessed through calcaneal quantitative ultrasound. Osteoporosis was diagnosed among those with T-score ≤-2.5, while those with 25(OH) Vitamin D <30 ng/ml were classified to have Vitamin D insufficiency (VDI). Individuals with BMD T-score <-1 were considered to have low BMD. Inferential statistics were employed to find the associates of poor bone health.

Results

Out of 260 participants, 34 (13.1%) were screened positive for osteoporosis and 77.7% had low BMD. Approximately 75% had VDI. On multivariable analysis, VDI (adjusted odds ratio [95% confidence interval] = 4.13 [2.12, 8.37]) was a significant predictor of low BMD after adjustment for poor education, decreasing diet score, menopause, presence of comorbidity, underweight, and overweight explaining 43.6% of the variance.

Conclusion

Serum Vitamin D levels are implicated to play a crucial role in bone metabolism; however, its effect on the body in accordance with other important hormones should be explored.

Maternal and neonatal outcome after vaginal breech delivery at term after cesarean section - a prospective cohort study of the Frankfurt breech at term cohort (FRABAT)

OBJECTIVE

To compare the neonatal and maternal outcomes as well as the mode of delivery of intended vaginal breech deliveries in women with a prior cesarean section to primiparous patients.

STUDY DESIGN

The prospective monocenter cohort study was conducted among 604 women who presented for an intended vaginal singleton breech delivery at term between January 2007 and December 2016.

RESULTS

Out of 37 women with a prior cesarean 19 had a successful vaginal delivery. 344 of 567 primiparous women had a successful vaginal delivery. Neonatal morbidity and mortality as well as maternal outcome were not significantly different in successful vaginal deliveries of women with prior cesarean compared to primiparous patients. The cesarean section rate was not significantly higher in the group of women with a prior cesarean (49%) compared to the group of primipara (39%).

CONCLUSION

A prior cesarean should not be taken as an exclusion criterion for a planned vaginal delivery out of a breech presentation at term. Large multicenter, case-controlled studies are necessary to implement international guidelines.

Anatomical redistribution of endogenous copper in embryonic mice overexpressing SOD1

Mutations in the copper (Cu)- and zinc (Zn)-binding metalloenzyme Cu/Zn-superoxide dismutase (SOD1) cause familial forms of amyotrophic lateral sclerosis (ALS), a fatal adult-onset neurodegenerative disorder of the central nervous system (CNS). Transgenic over-expression of mutant SOD1 produces a robust ALS-like phenotype in mice. Despite being ubiquitously expressed from the moment of conception, the mechanisms underlying the CNS-selective phenotype of mutant SOD1 expression remain poorly understood. We have previously shown that the physiological requirement for copper in SOD1 is unsatiated in the CNS of adult mice overexpressing mutant SOD1 and that suboptimal delivery of Cu to SOD1 in these mice progressively worsens with age. An age-related impediment to Cu availability may therefore contribute to the adult onset of disease in cases of ALS caused by mutant SOD1. Here, we have extended the age-related investigation of Cu in SOD1 overexpressing transgenic mice to the embryonic stage of development. We used the quantitative in situ elemental imaging method, laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), to assess the endogenous distribution of Cu, Zn and other endogenous elements (carbon, phosphorus, sulphur, magnesium, manganese and iron) in the embryonic day 14 (E14) embryos of transgenic mice overexpressing wild-type human SOD1 (hSOD1Wt) or mutant human SOD1 (hSOD1G37R). We show that in contrast to adult mice, SOD1 overexpression (both wild-type and mutant) is associated with an overt redistribution of Cu from the liver to the CNS during embryonic development. Also in contrast to adult mice, Zn redistribution to the CNS in response to SOD1 over-expression is relatively modest in embryonic mice, being limited to the brainstem. No other elemental changes between genotypes were observed. Our application of quantitative LA-ICP-MS in situ imaging details the first anatomical mapping of endogenous elements in embryonic mice. The observed redistribution of Cu from the liver to the CNS in response to SOD1 overexpression during embryogenesis indicates that the impediment of Cu delivery to SOD1, which is evident in adult mutant SOD1 overexpressing mice, only occurs at a later stage in life.

Metabolic syndrome and its correlates: A cross-sectional study among adults aged 18-49 years in an Urban Area of West Bengal

Background

The prevalence of metabolic syndrome (MetS) is increasing dramatically of late, across all ages irrespective of gender, socioeconomic status, and ethnicity. People with MetS have twice the likelihood of developing and dying from cardiovascular disease and more than seven times the risk of developing diabetes.

Objectives

This study was undertaken to determine the prevalence of MetS among adults who were in their first three decades of adulthood and to find out the risk factors of MetS among them.

Methods

This was a community based cross-sectional study among 388 subjects aged 18-49 years selected by multistage random sampling in an area of Kolkata, India, from November 2016 to October 2018 over 2 years. Data collection was done using a structured questionnaire along with anthropometry, blood pressure measurement, and relevant blood tests. Physical activity was classified by the International Physical Activity Questionnaire Short-Form questionnaire. Data were analyzed using the Statistical Package for the Social Sciences (version 16.0), and descriptive statistics were calculated as frequency and percentage. Logistic regression was done to determine the strength of association between MetS and different risk factors.

Results

The prevalence of MetS was 44.6% (35.4% in males and 55.6% in females), and female gender, poor economic status, sedentary lifestyle, poor diet, and addiction of tobacco were found to be the risk factors of MetS in the final model using multivariable logistic regression.

Conclusion

This research revealed the high prevalence of MetS in the community. The effective primordial and primary level of prevention along with prevailing secondary or tertiary level of prevention should have been employed to curtail the epidemic of MetS.

Scattering Studies with Low-Energy Kaon-Proton Femtoscopy in Proton-Proton Collisions at the LHC

The study of the strength and behavior of the antikaon-nucleon (K[over ¯]N) interaction constitutes one of the key focuses of the strangeness sector in low-energy quantum chromodynamics (QCD). In this Letter a unique high-precision measurement of the strong interaction between kaons and protons, close and above the kinematic threshold, is presented. The femtoscopic measurements of the correlation function at low pair-frame relative momentum of (K^{+}p⊕K^{-}p[over ¯]) and (K^{-}p⊕K^{+}p[over ¯]) pairs measured in pp collisions at sqrt[s]=5, 7, and 13 TeV are reported. A structure observed around a relative momentum of 58  MeV/c in the measured correlation function of (K^{-}p⊕K^{+}p[over ¯]) with a significance of 4.4σ constitutes the first experimental evidence for the opening of the (K[over ¯]^{0}n⊕K^{0}n[over ¯]) isospin breaking channel due to the mass difference between charged and neutral kaons. The measured correlation functions have been compared to Jülich and Kyoto models in addition to the Coulomb potential. The high-precision data at low relative momenta presented in this work prove femtoscopy to be a powerful complementary tool to scattering experiments and provide new constraints above the K[over ¯]N threshold for low-energy QCD chiral models.

Community perception and risk reduction practices toward malaria and dengue: A mixed-method study in slums of Chetla, Kolkata

Background

Globally, vector-borne diseases account for 17% of infectious disease burden. In India, despite accelerated efforts, both malaria and dengue are major public health concern. Understanding local community perspectives is essential to strengthen ongoing program activities.

Objectives

The study aimed to assess the community perceptions and risk reduction practices toward prevention and control of malaria and dengue at slums of Chetla in South Kolkata and to explore the perspectives of relevant local stakeholders in this regard.

Methods

This cross-sectional study with mixed-method design was conducted from June to September 2018. Quantitative data were collected in 288 sampled households through face-to-face interview of respondents and environmental checklist, whereas, qualitative exploration was done with five key informant interviews. Quantitative data were analyzed using SPSS version 16 Software. Qualitative data were analyzed thematically using "cut and sort" processing technique.

Results

In household survey, majority had unsatisfactory knowledge (68.4%), attitude (64.2%), and practices (62.8%) regarding diseases prevention/control, which was further substantiated by qualitative findings. The use of electric fans (79.5%), mosquito repellents (53.8%) were predominant practices; however, only a few used bed nets regularly (26.0%). Reportedly, "heat" and "poor ventilation" were key reasons behind reluctance to use bed nets. Multivariable regression analysis revealed that increasing age, proximity to a nearby canal, and unsatisfactory knowledge significantly predicted unfavorable attitude, whereas, respondents' gender and unfavorable attitude significantly predicted poor practices.

Conclusions

Intensified social behavior change communication with active community participation is the need of the hour to prevent malaria and dengue occurrence and future outbreaks.

Malnutrition, Its Attributes, and Impact on Quality of Life: An Epidemiological Study among β-Thalassemia Major Children

Background

India is home to a large number of thalassemic children. Despite malnutrition being an essential determinant of their therapeutic goals and quality of life (QoL), it was hardly ever explored. With this background, this study aimed to estimate the proportion of β-thalassemia major (β-TM) children experiencing malnutrition, its attributes, and impact on their QoL.

Methods

This cross-sectional, hospital-based, analytical observational study was conducted among 328 β-TM children attending the thalassemia day care unit of a medical college from May 2016 to April 2017, with a structured schedule. Data were analyzed following appropriate statistical methods using SPSS statistical package ver. 16.0 (SPSS Inc., Chicago, IL, USA).

Results

Among the study participants, 48.2% were malnourished with a mean body mass index of 13.9 kg/m2 . In the multivariable logistic regression model, participants’ age (adjusted odds ratio [AOR], 1.15; 95% confidence interval [CI], 1.02–1.29), caste (AOR, 2.11; 95% CI, 1.23–3.60), mothers’ educational level (AOR, 2.05; 95% CI, 1.22– 3.44), blood transfusion frequency (AOR, 1.25; 95% CI, 1.16–1.31), and palpable spleen size (AOR, 1.22; 95% CI, 1.08–1.37) were significant predictors of malnutrition after adjusting for pre-transfusion hemoglobin level and hemolytic facies status. In multiple linear regression analysis, malnutrition negatively impacted total QoL (unstandardized beta [standard error], -4.4 [1.7]; P=0.009) and various domains of the study participants except the social and school domains adjusted for age, sex, caste, place of residence, parents’ educational level, and socioeconomic status.

Conclusion

Almost half of the study participants had malnutrition. Malnutrition had a negative impact on their QoL.

A Study on Variation of Blood Pressure and Associated Factors among Adolescent School Students in North 24 Parganas, West Bengal, India

Introduction: Adolescent Hypertension (HTN) is one of the most alarming public health problems and is a potential risk factor for non-communicable diseases as asymptomatic, mostly remain undiagnosed. Simple anthropometric indicators acting as preliminary screening tool to predict HTN among adolescents is the need of hour. Aim: To find out the magnitude of pre HTN and HTN among adolescent school students of North 24 Parganas and to find out the variation of blood pressure with different anthropometric parameters. Materials and Methods: A cross-sectional study was carried out from June to September, 2019 among 369 adolescent school students of class VIII to XII in two Government higher secondary schools, selected conveniently, in North 24 Parganas. Data was collected by face to face interview, blood pressure recording and anthropometric measurements in the selected schools was done. Data was analysed using SPSS version 16.0. Results: Among 369 participants, 189 (51.2%) were boys and 180 (48.8%) were girls. Mean Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP) among boys were 110.2 (±14.9), 68.0 (±9.3) and among girls 113.1 (±14.3), 71.2 (±9), respectively. Overall HTN was found to be 7.0% (6.3% in boys and 7.8% in girls) and pre HTN was 13.8% (12.2% in boys and 15.6% in girls). There were significant (p<0.05) positive correlation of SBP and DBP with BMI (r=0.692; r=0.673), Body fat percentage (r=0.686; r=0.676,), Waist Circumference (WC) (r=0.708; r=0.640), Neck Circumference (NC) (r=0.593; r=0.509,). HTN was significantly associated with physical activity and salt intake (p<0.05). Conclusion: As a rising trend of HTN was found among adolescents, early lifestyle modification and strengthening of school health setup using simple anthropometric measures are recommended for early detection of adolescent HTN and to prevent detrimental consequences.

Perceived stress and coping behavior among future nurses: A cross-sectional study in West Bengal, India

Background:

Demanding clinical and academic environments have been potential sources of stress among nursing students. Inability to cope effectively often potentiates this stress. If not intervened early, this may have a detrimental effect on health and may eventually affect the future workforce in rendering care.

Objectives:

The objective of this study was to explore the levels and sources of perceived stress and coping behavior among undergraduate nursing students in West Bengal.

Materials and Methods:

This descriptive cross-sectional study was conducted in two nursing training institutions in West Bengal, from July to September 2018, using a validated pretested self-administered questionnaire comprising demographics, Perceived Stress Scale (PSS), and coping behavior inventory (CBI). Students having at least 6 months of clinical exposure were invited to participate. Of 256 eligible students, 182 returned completed questionnaires, giving an overall response rate of 71%. Descriptive statistics, Pearson's correlation, and multiple regression analysis were performed using SPSS 16.0 software.

Results:

“Stress from assignments and workload” and “problem-solving” was the most prominent stressor and coping behavior (Factor rank 1) respectively among students. Statistically significant correlation was observed between overall mean PSS and CBI score (r = 0.306, P < 0.01). Years of education, self-decision to join, increased screen time, staying at hostel significantly predicted stress (R² = 0.248, F = 9.640, P < 0.01), and coping behavior (R² = 0.223, F = 10.077, P < 0.01) among students.

Conclusions:

Stress from academics and clinics were high among nursing students. As they are the future carers, it is apt to intervene early to mitigate their stress and enhance their coping skills during professional training and practice.