Determination of chlorophyll-a amount in Golden Horn, Istanbul, Turkey using IKONOS and in situ data

The objective of this research was to explore an accurate and fast way of estimating chlorophyll-a amount, a water quality parameter (WQP), using IKONOS satellite sensor image and in situ measurements. Since the in situ data of WQPs are limited with the number of sampling locations, deriving a correlation between these measurements and remotely sensed image allows synoptic estimates of the related parameter over large areas even if the areas are in remote and inaccessible locations. In this study, simultaneously collected satellite image data and in situ measurements of chlorophyll-a were correlated using multivariate regression model. Different experiments were designed by changing the numbers and distributions of in situ measurements. Regression coefficients of each design and differences between model-derived data and in situ measurements were calculated to find out the optimum design to produce chlorophyll-a map of study region. Results illustrated that both the number and distribution of in situ measurements have impact on regression analysis, therefore should be selected attentively. Also, it is found that IKONOS imagery is an efficient and effective source to derive chlorophyll-a map of the large areas using limited number of ground measurements.

The anxieties of medical students related to clinical training

High levels of anxiety and stress during medical education may have negative effects on students' learning and may also influence students' performance, decision-making and caring capabilities. This study aims to compare the anxieties of clerkships of two medical schools that apply two different preclinical curricula; one is problem-based and the other is integrated. Dokuz Eylul University School of Medicine (DEUSM) has the basic clinical and communication skills education by the first year of medical education. However, the students of Marmara University School of Medicine (MUSM) had not any preclinical training about these issues at the time we performed this study. In order to evaluate the perceived anxiety, we used a questionnaire which comprises 39 issues presented as 4-point Likert-type scales. Eighty-six clerkships from MUSM and 115 clerkships from DEUSM participated in the study. According to the students of both of the schools, fear of making mistakes that could harm the patients was at the top of the list of sources of anxiety. The students of MUSM have additional anxieties related to the core clinical skills such as suturing patients, taking blood from patients and giving injections. On the other hand, the students of DEUSM have anxieties mostly related to difficult issues in communication such as breaking bad news. The study has revealed that medical students might have anxiety related to the clinical practice in the beginning of their clerkships. It was also shown that sources of anxiety may vary among students exposed to different preclinical curricula and different educational environment. If basic clinical and communication skills courses are integrated in preclinical curriculum, the students would meet some clinical task in the early year and would be orientated through clinical period.

Minimizing missed opportunities: an approach to decrease the unmet need for family planning

OBJECTIVES

The aim of the study was to determine the participants with unmet need and to show that family planning consultancy given to women and men attending the first-level health facilities would increase contraceptive usage and reduce unmet need for family planning.

METHODS

All married women aged 15-49 years and men having wives of the same age group attending the health centers for any service other than family planning were included in the study. Among 2021 attendants, a total of 1701 participated in the study (84.2%). Participants were interviewed after they took the services for which they attended. At the end of the inquiries, all willing participants were referred to the family planning unit in the same building.

RESULTS

The unmet need (need for any or more effective contraceptive methods) was 43.1%. All participants with unmet need were referred to the family planning unit in the same building and willing participants were given family planning services. Of the participants, 23.9% attended the family planning unit and 17.8% took services immediately at the time of the attendance.

CONCLUSIONS

Linking family planning services with other health services can be a cheap and practical way to reduce the unmet need.