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Yadav B, Singh G, Wankar A, Dutta N, Chaturvedi VB, Verma MR. Effect of Simulated Heat Stress on Digestibility, Methane Emission and Metabolic Adaptability in Crossbred Cattle. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2016; 29:1585-1592. [PMID: 26954228 PMCID: PMC5088378 DOI: 10.5713/ajas.15.0693] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 11/05/2015] [Accepted: 01/05/2016] [Indexed: 11/27/2022]
Abstract
The present experiment was conducted to evaluate the effect of simulated heat stress on digestibility and methane (CH4) emission. Four non-lactating crossbred cattle were exposed to 25°C, 30°C, 35°C, and 40°C temperature with a relative humidity of 40% to 50% in a climatic chamber from 10:00 hours to 15:00 hours every day for 27 days. The physiological responses were recorded at 15:00 hours every day. The blood samples were collected at 15:00 hours on 1st, 6th, 11th, 16th, and 21st days and serum was collected for biochemical analysis. After 21 days, fecal and feed samples were collected continuously for six days for the estimation of digestibility. In the last 48 hours gas samples were collected continuously to estimate CH4 emission. Heat stress in experimental animals at 35°C and 40°C was evident from an alteration (p<0.05) in rectal temperature, respiratory rate, pulse rate, water intake and serum thyroxin levels. The serum lactate dehydrogenase, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase activity and protein, urea, creatinine and triglyceride concentration changed (p<0.05), and body weight of the animals decreased (p<0.05) after temperature exposure at 40°C. The dry matter intake (DMI) was lower (p<0.05) at 40°C exposure. The dry matter and neutral detergent fibre digestibilities were higher (p<0.05) at 35°C compared to 25°C and 30°C exposure whereas, organic matter (OM) and acid detergent fibre digestibilities were higher (p<0.05) at 35°C than 40°C thermal exposure. The CH4 emission/kg DMI and organic matter intake (OMI) declined (p<0.05) with increase in exposure temperature and reached its lowest levels at 40°C. It can be concluded from the present study that the digestibility and CH4 emission were affected by intensity of heat stress. Further studies are necessary with respect to ruminal microbial changes to justify the variation in the digestibility and CH4 emission during differential heat stress.
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Pradhan S, Dutta N, Kullu S, Saini M, Pattanaik A, Sharma A, Das A. In vitroEvaluation of Plant Derived Dietary Fibers as Prebiotic for Indian Leopard (Panthera pardus fusca). ANIM NUTR FEED TECHN 2016. [DOI: 10.5958/0974-181x.2016.00020.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Pendlebury ST, Lovett NG, Smith SC, Dutta N, Bendon C, Lloyd-Lavery A, Mehta Z, Rothwell PM. Observational, longitudinal study of delirium in consecutive unselected acute medical admissions: age-specific rates and associated factors, mortality and re-admission. BMJ Open 2015; 5:e007808. [PMID: 26576806 PMCID: PMC4654280 DOI: 10.1136/bmjopen-2015-007808] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
OBJECTIVES We aimed to determine age-specific rates of delirium and associated factors in acute medicine, and the impact of delirium on mortality and re-admission on long-term follow-up. DESIGN Observational study. Consecutive patients over two 8-week periods (2010, 2012) were screened for delirium on admission, using the confusion assessment method (CAM), and reviewed daily thereafter. Delirium diagnosis was made using the Diagnostic and Statistical Manual Fourth Edition (DSM IV) criteria. For patients aged ≥65 years, potentially important covariables identified in previous studies were collected with follow-up for death and re-admission until January 2014. PARTICIPANTS 503 consecutive patients (age median=72, range 16-99 years, 236 (48%) male). SETTING Acute general medicine. RESULTS Delirium occurred in 101/503 (20%) (71 on admission, 30 during admission, 17 both), with risk increasing from 3% (6/195) at <65 years to 14% (10/74) for 65-74 years and 36% (85/234) at ≥75 years (p<0.0001). Among 308 patients aged >65 years, after adjustment for age, delirium was associated with previous falls (OR=2.47, 95% CI 1.45 to 4.22, p=0.001), prior dementia (2.08, 1.10 to 3.93, p=0.024), dependency (2.58, 1.48 to 4.48, p=0.001), low cognitive score (5.00, 2.50 to 9.99, p<0.0001), dehydration (3.53, 1.91 to 6.53, p<0.0001), severe illness (1.98, 1.17 to 3.38, p=0.011), pressure sore risk (5.56, 2.60 to 11.88, p<0.0001) and infection (4.88, 2.85 to 8.36, p<0.0001). Patients with delirium were more likely to fall (OR=4.55, 1.47 to 14.05, p=0.008), be incontinent of urine (3.76, 2.15 to 6.58, p<0.0001) or faeces (3.49, 1.81-6.73, p=0.0002) and be catheterised (5.08, 2.44 to 10.54, p<0.0001); and delirium was associated with stay >7 days (2.82, 1.68 to 4.75, p<0.0001), death (4.56, 1.71 to 12.17, p=0.003) and an increase in dependency among survivors (2.56, 1.37 to 4.76, p=0.003) with excess mortality still evident at 2-year follow-up. Patients with delirium had fewer re-admissions within 30-days (OR=0.32, 95% CI 0.09 to 1.1, p=0.07) and in total (median, IQR total re-admissions=0, 0-1 vs 1, 0-2, p=0.01). CONCLUSIONS Delirium affected a fifth of acute medical admissions and a third of those aged ≥75 years, and was associated with increased mortality, institutionalisation and dependency, but not with increased risk of re-admission on follow-up.
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Pradhan S, Das A, Kullu S, Saini M, Pattanaik A, Dutta N, Sharma A. Effect of feeding Jerusalem artichoke (Helianthus tuberosus) root as prebiotic on nutrient utilization, fecal characteristics and serum metabolite profile of captive Indian leopard (Panthera pardus fusca) fed a meat-on-bone diet. Zoo Biol 2015; 34:153-62. [DOI: 10.1002/zoo.21187] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 10/01/2014] [Accepted: 10/17/2014] [Indexed: 12/24/2022]
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Girish G, Agarwal S, Dutta N, Pratap H, Satsangi D, Tempe D. Glycemic control in cardiac surgery: Rationale and current evidence. Ann Card Anaesth 2014; 17:222-8. [DOI: 10.4103/0971-9784.135873] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Singh S, Agarwal S, Dutta N, Satsangi DK. An unusual case of recurrent extrusion of pacemaker. INDIAN JOURNAL OF MEDICAL SPECIALITIES 2012. [DOI: 10.7713/ijms.2012.0036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Singh S, Agarwal S, Dutta N, Mishra S, Upreti L, Satasngi DK. Surgical repair of a submitral aneurysm in a three-year-old child. J Card Surg 2012; 27:238-40. [PMID: 22458282 DOI: 10.1111/j.1540-8191.2012.01428.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Submitral aneurysm (SMA) is a rare anomaly occurring adjacent to the posterior leaflet of the mitral valve. It usually presents in young adults and it is uncommon in the pediatric age group. We report one case of SMA in a three-year-old child and its successful surgical management.
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Patil NP, Dutta N, Satyarthy S, Geelani MA, Kumar Satsangi D, Banerjee A. Cardiac myxomas: experience over one decade. J Card Surg 2012; 26:355-9. [PMID: 21793921 DOI: 10.1111/j.1540-8191.2011.01271.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND This single-center study reviews our experience with cardiac myxomas over the past decade. METHODS Sixty-two patients (23 male) with median age 38 years (range: 8 to 69 years) underwent excision of primary or recurrent cardiac myxomas between 2000 and 2009. Patients were evaluated with echocardiography preoperatively and annually postoperatively. Follow-up is current for all survivors (range 13 months to 10 years). RESULTS Fifty-two patients had left atrial myxomas, seven right atrial, two biatrial, and one right ventricular. Three cases were familial. Maximum number of myxomas in a single patient was four. Symptom duration ranged from two to eight months. Two early deaths were due to low cardiac output and embolic cerebrovascular accident; one late death was due to a noncardiac cause. Actuarial survival was 96.8 ± 1.8% at 10 years. Most patients were asymptomatic following surgery. No sporadic, multiple, or biatrial myxomas recurred. Recurrence occurred in two familial cases, both with single, left atrial myxoma. Freedom from reoperation was 98.4 ± 1.3% at five years and 96.8 ± 1.8% at 10 years. CONCLUSIONS Biatrial involvement or multiplicity of myxomas does not mandate recurrence. Surgical excision has excellent overall survival and freedom from reoperation rates, but annual follow-up including echocardiographic surveillance is recommended as familial cases tend to recur.
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Dutta N, Agarwal S, Rohatgi A, Mantan M, Datt V, Satsangi DK. Postoperative iatrogenic polyuria: a case of good intentions gone haywire. INDIAN JOURNAL OF MEDICAL SPECIALITIES 2011. [DOI: 10.7713/ijms.2012.0022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Dutta N, Agarwal S, Upretti L, Satsangi DK. Extensive local spread of rhabdomyosarcoma. J Card Surg 2011; 26:294. [PMID: 21585536 DOI: 10.1111/j.1540-8191.2010.01179.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
This study was undertaken with the objectives to assess psychological responses in children surviving terrorist attack and to observe relationships between various risk factors and subsequent psychological changes. Assessment of psychological changes was done on 131 children who were directly exposed to terrorist attack. Achenbach Child Behavior Checklist was used to assess victimized children for analysis purpose. Possible risk factors were assessed by questionnaire to the parents. What has emerged as the most interesting aspect of this research is that, whereas for adults, pretraumatic risk factors are extremely important predictors of chronic posttraumatic symptoms, for children, the most important consideration appears to be the death of the mother and number of stressors.
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Prakash S, Agarwal S, Dutta N, Satsangi DK. A comparative study of surgical treatment of small aortic root with or without aortic root enlargement using a single prosthesis type. J Cardiovasc Med (Hagerstown) 2010; 11:836-42. [DOI: 10.2459/jcm.0b013e32833e5687] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Pratap H, Agarwal S, Singh S, Patil N, Dutta N, Satsangi DK. Safety and efficacy of off-pump coronary revascularization in severe left ventricular dysfunction. Indian J Thorac Cardiovasc Surg 2010. [DOI: 10.1007/s12055-009-0043-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Kang I, Rasras M, Buhl L, Dinu M, Cabot S, Cappuzzo M, Gomez LT, Chen YF, Patel SS, Dutta N, Piccirilli A, Jaques J, Giles CR. All-optical XOR and XNOR operations at86.4 Gb/s using a pair of semiconductor optical amplifier Mach-Zehnder interferometers. OPTICS EXPRESS 2009; 17:19062-19066. [PMID: 20372642 DOI: 10.1364/oe.17.019062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We propose a method for increased-speed all-optical XOR operation using semiconductor optical amplifiers. We demonstrate XOR and XNOR operations at 86.4 Gb/s using a pair of photonic-integrated semiconductor optical amplifier Mach-Zehnder interferometers.
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Vasan P, Dutta N, Mandal AB, Sharma K, Kadam MM. Comparative digestibility of amino acids of maize, sorghum, finger millet and pearl millet in cockerels and Japanese quails. Br Poult Sci 2008; 49:176-80. [PMID: 18409091 DOI: 10.1080/00071660801969499] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
1. The objective of the present study was to determine the apparent digestibilities of amino acids of maize, low tannin sorghum, pearl millet and finger millet in adult cockerels and Japanese quails. 2. Adult White Leghorn cockerels (25 weeks of age) and adult Japanese quails (15 weeks of age) were used to determine the apparent digestibilities of amino acids in cereal grains. 3. The digestibilities of amino acids in sorghum determined with quails were similar to cockerels, with the exception of histidine, which was significantly lower in quails. 4. In finger millet, the digestibilities of methionine and leucine were significantly higher, while that of histidine and cystine were significantly lower in adult quails than in adult cockerels. 5. The digestibilities of pearl millet amino acids were similar in quails and cockerels, except for that of histidine, which was significantly lower in quails. 6. Almost all the amino acids in maize, except histidine, had significantly higher digestibility values in quails than in cockerels. Histidine digestibility of all the 4 cereal grains was significantly lower in quails than in cockerels. 7. The amino acid digestibility values for certain cereal grains determined with cockerels do not support their use in formulating practical quail diets. The amino acid digestibility values of maize were underestimated by using cockerels while that of finger millet was overestimated.
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Singh M, Sharma K, Dutta N, Singh P, Verma AK, Mehra UR. Estimation of Rumen Microbial Protein Supply Using Urinary Purine Derivatives Excretion in Crossbred Calves Fed at Different Levels of Feed Intake. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2007. [DOI: 10.5713/ajas.2007.1567] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Gao Y, Choudhury N, Dutta N. Ionomer-Clay Nanocomposites Via Melt Processing. JOURNAL OF POLYMER ENGINEERING 2006. [DOI: 10.1515/polyeng.2006.26.8-9.853] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Sun H, Wang Q, Dong H, Dutta N. XOR performance of a quantum dot semiconductor optical amplifier based Mach-Zehnder interferometer. OPTICS EXPRESS 2005; 13:1892-1899. [PMID: 19495070 DOI: 10.1364/opex.13.001892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The performance of all-optical XOR gate based on quantum-dot (QD) SOA MZI has been simulated. The saturation power, optical gain and phase response of a QD SOA has been analyzed numerically using a rate equation model of quantum dots embedded in a wetting layer. The calculated response is used to model the XOR performance. For the parameters used here, XOR operation at ~ 250 Gb/s is feasible using QD based Mach-Zehnder interferometers. The speed is limited by the relaxation time from wetting layer to the quantum dots.
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Zhu G, Wang Q, Dong H, Sun H, Dutta N. 80Gb/s clock recovery with phase locked loop based on LiNbO3 modulators. OPTICS EXPRESS 2004; 12:3488-3492. [PMID: 19483876 DOI: 10.1364/opex.12.003488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In this paper, we present a scheme for extracting a 10GHz clock from the 80Gb/s optical time division multiplexed (OTDM) return to zero (RZ) data stream. The proposed clock recovery is based on the offset locking technique. By using the input data composed of a repeating "10100000" pattern, residue jitter free operation for clock recovery is demonstrated. The method utilizes a LiNbO3 Mach-Zehnder (MZ) intensity modulator for cross-correlation detections.
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Anbarasu C, Dutta N, Sharma K, Rawat M. Response of goats to partial replacement of dietary protein by a leaf meal mixture containing Leucaena leucocephala, Morus alba and Tectona grandis. Small Rumin Res 2004. [DOI: 10.1016/s0921-4488(03)00203-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Sharma K, Dutta N, Pattanaik AK, Hasan QZ. Replacement value of undecorticated sunflower meal as a supplement for milk production by crossbred cows and buffaloes in the northern plains of India. Trop Anim Health Prod 2003; 35:131-45. [PMID: 12735704 DOI: 10.1023/a:1022873402101] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The replacement value of undecorticated sunflower meal (SFM) in the diets of dairy animals was assessed on-station and on-farm. Eighteen primiparous crossbred (Bos taurus x Bos indicus) cows (350.4 +/- 8.84 kg), randomly allocated to three groups, were used in the on-station study. The animals were fed on either a conventional concentrate supplement (control) or on an experimental concentrate, in which SFM replaced 25% (SFM-25) or 50% (SFM-50) of the CP in the control supplement. Green oats (Avena sativa) were supplied ad libitum. A metabolism trial conducted following 60 days of experimental feeding revealed that the intakes of DM, DCP and TDN were similar among the groups. The digestibilities of OM, CP, EE, NDF and ADF were also without significant differences. All the groups were in positive nitrogen balance. Inclusion of SFM at either level had no effect on the intake, excretion or retention of nitrogen. The daily milk yield and its composition did not differ among the dietary treatments. Moreover, the efficiency of utilization of DOM and TDN for FCM production tended to reflect, although non-significantly, increasing levels of SFM inclusion. In the on-farm study, seven multiparous milking buffaloes belonging to six farmers were used to assess the effect of replacing 20% of the CP of the conventional supplement with SFM, in a predominantly crop residue-based diet. The study continued for 4 months and revealed that the average daily feed intake and milk production was similar in the control and SFM-fed groups. It was concluded that SFM can be effectively utilized as a cheaper replacement for costly oil cakes and wheat bran for economic milk production by smallholder farmers.
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Biswal B, Hasan QZ, Sharma K, Dutta N. Effect of Selective Consumption on Intake, Diet Selectivity and Passage Kinetics of Wheat Straw by Barbari Goats. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2000. [DOI: 10.5713/ajas.2000.913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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