210 research outputs found
Exposure to Sexually Explicit Materials and Its Association with Sexual Behaviors of Ambo University Undergraduate Students, 2018
BACKGROUND: Among the number of reasons that expose the youth to reproductive health risks, lack of adequate information on sexual and reproductive health issues is of prior concern. Given the lack of readily available information about sexual activity to teens, they turn to media for information about sexual norms and may also use the media as a sexual super-peer that encourages them to be sexually active. Therefore, this study was aimed to assess the association between exposure to sexually explicit materials and sexually risky behaviors among undergraduate students of Ambo University, Ethiopia.METHODS: Institutional based cross-sectional study was conducted among 403 university students in 2018. Study participants were selected by systematic random sampling technique. Self- administered questionnaire was used to collect data. Data were analyzed using SPSS statistical software version 20. Uni-variate, bivariate and multiple logistic regression analyses were done. With 95% CI, the p-value of less than 0.05 was taken as the level of significance.RESULTS: About 55% and 52% of the university students were exposed to sexually explicit electronic materials throughout their life and in the last 12 months prior to data collection period respectively. Searching for sex information was the top reason for why university students resorted to watching sexually explicit materials. Sexually active students, senior students and male students were more likely to engage in watching sexually explicit electronic materials compared to their counterparts.CONCLUSION: A high numbers of university students were being exposed to sexually explicit electronic materials for the sake of searching about sexual and related information. This exposure has a significant association with risky sexual behaviors specifically. We highly recommend that university organize awareness creation forum on the area of sexual health, HIV/AIDS and STI, and related matters
PERBEDAAN SIKAP TENTANG BENCANA DITINJAU DARI PROGRAM SEKOLAH SIAGA BENCANA PADA SISWA SMP
Tujuan penelitian ini adalah untuk mengetahui perbedaan sikap tentang bencana ditinjau dari Program Sekolah Siaga Bencana pada siswa SMP. Program Sekolah Siaga Bencana merupakan salah satu faktor yang mempengaruhi sikap tentang bencana. Sikap tentang bencana adalah evaluasi terhadap beberapa pengalaman masa lalu mengenai bencana.Penelitian menggunakan metode expost facto, dengan teknik purposive sampling. Subjek penelitian berjumlah 80 orang yang terbagi dalam kelompok ckspcrimen (40 orang) dan kelompok kontrol (40 orang). Metode pengumpulan data dalam pcnclitian ini menggunakan skala psikologis yang berupa skala sikap tentang bencana yang terdiri dari 48 aitem. Metode analisis data yang digunakan adalah uji Mann-Whitney U dengan hasil Z yang diperoleh yaitu sebesar -4.717 dengan harga p sebesar 0,000. Harga p ini menunjukkan skor yang lebih kecil dari taraf kesalahan yang digunakan yaitu sebesar 0,000 (0,00
A reexamination of end-point and rebound nystagmus in normals.
In order to detail the characteristics of end-point (EPN) and rebound nystagmus (RN), two series of
experiments were performed with infrared oculography for measurement of horizontal eye movements.
Experiment 1 consisted of EPN recordings during sustained lateral gaze (40° and 50°) in 20 normal
subjects. Experiment 2 consisted of recordings of RN in 5 normal subjects. Nine of 20 subjects
demonstrated a jerk EPN. EPN almost always appeared immediately and was sustained for 15-25 sec.
In Experiment 2, RN occurred in 5 of the 5 subjects who demonstrated EPN. The mean amplitude of
RN was always less than that of EPN, and decayed over a 5-10-sec time period. The experiment
demonstrated that RN can be evoked in normals even when a fixation target, in a fully lit room, is
present
Cost-effectiveness of facility-based, stand-alone and mobile-based voluntary counseling and testing for HIV in Addis Ababa, Ethiopia
Background: Globally, there is a consensus to end the HIV/AIDS epidemic by 2030, and one of the strategies to achieve this target is that 90% of people living with HIV should know their HIV status. Even if there is strong evidence of clients’ preference for testing in the community, HIV voluntary counseling and testing (VCT) continue to be undertaken predominantly in health facilities. Hence, empirical cost-effectiveness evidence about different HIV counseling and testing models is essential to inform whether such community-based testing are justifiable compared with additional resources required. Therefore, the purpose of this study was to compare the cost-effectiveness of facility-based, stand-alone and mobile-based HIV voluntary counseling and testing methods in Addis Ababa, Ethiopia.
Methods: Annual economic costs of counseling and testing methods were collected from the providers’ perspective from July 2016 to June 2017. Ingredients based bottom-up costing approach was applied. The effectiveness of the interventions was measured in terms of the number of HIV seropositive clients identified. Decision tree modeling was built using TreeAge Pro 2018 software, and one-way and probabilistic sensitivity analyses were conducted by varying HIV positivity rate, costs, and probabilities.
Results: The cost of test per client for facility-based, stand-alone and mobile-based VCT was USD 5.06, USD 6.55 and USD 3.35, respectively. The unit costs of test per HIV seropositive client for the corresponding models were USD 158.82, USD 150.97 and USD 135.82, respectively. Of the three models, stand-alone-based VCT was extendedly dominated. Mobile-based VCT costs, an additional cost of USD 239 for every HIV positive client identified when compared to facility-based VCT.
Conclusion: Using a mobile-based VCT approach costs less than both the facility-based and stand-alone approaches, in terms of both unit cost per tested individual and unit cost per HIV seropositive cases identified. The stand-alone VCT approach was not cost-effective compared to facility-based and mobile-based VCT. The incremental cost-effectiveness ratio for mobile-based VCT compared with facility-based VCT was USD 239 per HIV positive case.publishedVersio
A mechanistic model for electricity consumption on dairy farms: Definition, validation, and demonstration
Our objective was to define and demonstrate a mechanistic model that enables dairy farmers to explore the impact of a technical or managerial innovation on electricity consumption, associated CO2 emissions, and electricity costs. We, therefore, (1) defined a model for electricity consumption on dairy farms (MECD) capable of simulating total electricity consumption along with related CO2 emissions and electricity costs on dairy farms on a monthly basis; (2) validated the MECD using empirical data of 1 yr on commercial spring calving, grass-based dairy farms with 45, 88, and 195 milking cows; and (3) demonstrated the functionality of the model by applying 2 electricity tariffs to the electricity consumption data and examining the effect on total dairy farm electricity costs. The MECD was developed using a mechanistic modeling approach and required the key inputs of milk production, cow number, and details relating to the milk-cooling system, milking machine system, water-heating system, lighting systems, water pump systems, and the winter housing facilities as well as details relating to the management of the farm (e.g., season of calving). Model validation showed an overall relative prediction error (RPE) of less than 10% for total electricity consumption. More than 87% of the mean square prediction error of total electricity consumption was accounted for by random variation. The RPE values of the milk-cooling systems, water-heating systems, and milking machine systems were less than 20%. The RPE values for automatic scraper systems, lighting systems, and water pump systems varied from 18 to 113%, indicating a poor prediction for these metrics. However, automatic scrapers, lighting, and water pumps made up only 14% of total electricity consumption across all farms, reducing the overall impact of these poor predictions. Demonstration of the model showed that total farm electricity costs increased by between 29 and 38% by moving from a day and night tariff to a flat tariff
The pupil in dominant optic atrophy
purpose. To compare visual and pupil afferent function in dominant optic atrophy (DOA).
methods. Patients with DOA who belonged to families showing evidence of linkage to the locus on chromosome 3q28-qter were recruited from the Moorfields Genetic Register. Patients and healthy control subjects underwent visual and pupil perimetry using a modified automated perimeter (Octopus 1-2-3; Interzeag, Schlieren, Switzerland). Five stimulus locations were tested: fixation, and at 17° eccentricity along the 45° and 135° meridians in all four quadrants. The visual deficit (difference in decibels between the patient’s luminance threshold and that in age-matched healthy control subjects) was compared directly with the pupil deficit (difference in decibels between the stimulus intensity giving the patient’s pupil response and that giving an equivalent pupil response in healthy control subjects) at each test location.
results. Visual deficits and pupil afferent deficits were found at all five locations. The visual deficits were significantly greater than the pupil deficits at the four peripheral locations (median difference = 6.3 dB, P < 0.001). At fixation, the difference was not significant (median difference = 2.3 dB, P = 0.407).
conclusions. Pupil function appears less affected than visual function at four of five locations tested. This result provides evidence that the retinotectal fibers serving the pupil light reflex are less susceptible to damage from the OPA1 genetic defect than the retinogeniculate fibers serving vision
Evidence for an eye-movement contribution to normal foveal crowding
Purpose:
Along with contour interaction, inaccurate and imprecise eye movements and attention have been suggested to contribute to poorer acuity for “crowded” versus uncrowded targets. To investigate the role of eye movements in foveal crowding, we compared percent correct letter identification for short and long lines of near-threshold letters with different separations.
Methods:
Five normal observers read short (4 to 6 letters) and long (10 to 12 letters) lines of near-threshold, Sloan letters with edge-to-edge letter separations of 0.5, 1, and 2 letter spaces. Percent correct letter identification for the 2 to 4 interior letters in short strings and the 8 to 10 interior letters in long strings was compared with a no-crowding condition.
Results:
Letter identification was significantly worse than the no-crowding condition for long letter strings with a separation of 1 letter space and for both long and short letter strings with a separation of 0.5 letter spaces. Observers more often reported the incorrect number of letters in long than in short letter strings, even for a separation of 2 letter spaces. Similar results were obtained during straight-ahead gaze and while viewing in 30 to 40 degrees left gaze, where two of the five observers exhibited an increase in horizontal fixational instability.
Conclusions:
We argue that lower percent correct letter identification and more frequent errors in reporting the number of letters in long compared with short letter strings reflect an eye-movement contribution to foveal crowding
The synergy between TB and HIV co-infection on perceived stigma in Ethiopia
<p>Abstract</p> <p>Background</p> <p>The synergy between tuberculosis (TB) and human immunodeficiency virus (HIV) co-infection on perceived stigma is not well studied. The objective of this study was to assess the effect of TB/HIV co-infection on perceived stigma in selected hospitals of Oromiya region, Ethiopia. A cross sectional study was conducted from February to April, 2009 in Adama, Nekemet and Jimma Specialized hospitals. Data were collected by trained HIV counselors. A structured questionnaire which consisted of socio-demographic variables, clinical information, perceived stigma, and depression was used to collect the data</p> <p>Findings</p> <p>A total of 591 participants were included in the study of whom 124 (20.9%) were co-infected with TB/HIV. The stigma items were highly reliable (Cronbach's alpha = 0.93) and had strong inter dimension correlation. Respondents who were co-infected with TB and HIV were more likely to have perceived stigma compared to non-co-infected HIV patients, [OR = 1.4, (95% CI: 1.2, 2.0)]. Non-literate individuals [OR = 1.9, (95% CI: 1.2, 3.0)] and females [OR = 1.6, (95% CI: 1.2, 2.3)] had also more perceived stigma.</p> <p>Conclusions</p> <p>TB/HIV co-infected patients, non-literate individuals and females were more likely to have high perceived stigma. Behavioral Change Communication should focus on these segments of the population to rectify the high perceived stigma.</p
Tuberculosis and HIV co-infection: its impact on quality of life
This is an Open Access article distributed under the terms of the Creative Commons Attribution Licens
Morbidity and mortality from road injuries: results from the Global Burden of Disease Study 2017
BackgroundThe global burden of road injuries is known to follow complex geographical, temporal and demographic patterns. While health loss from road injuries is a major topic of global importance, there has been no recent comprehensive assessment that includes estimates for every age group, sex and country over recent years.MethodsWe used results from the Global Burden of Disease (GBD) 2017 study to report incidence, prevalence, years lived with disability, deaths, years of life lost and disability-adjusted life years for all locations in the GBD 2017 hierarchy from 1990 to 2017 for road injuries. Second, we measured mortality-to-incidence ratios by location. Third, we assessed the distribution of the natures of injury (eg, traumatic brain injury) that result from each road injury.ResultsGlobally, 1 243 068 (95% uncertainty interval 1 191 889 to 1 276 940) people died from road injuries in 2017 out of 54 192 330 (47 381 583 to 61 645 891) new cases of road injuries. Age-standardised incidence rates of road injuries increased between 1990 and 2017, while mortality rates decreased. Regionally, age-standardised mortality rates decreased in all but two regions, South Asia and Southern Latin America, where rates did not change significantly. Nine of 21 GBD regions experienced significant increases in age-standardised incidence rates, while 10 experienced significant decreases and two experienced no significant change.ConclusionsWhile road injury mortality has improved in recent decades, there are worsening rates of incidence and significant geographical heterogeneity. These findings indicate that more research is needed to better understand how road injuries can be prevented
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