Miracle-dz/UniFAR-FTUs huggingface dataset:
Health worker attrition at a rural district hospital in Rwanda: a need for improved placement and retention strategies

Introduction The shortage and maldistribution of health care workers in sub-Saharan Africa is a major concern for rural health facilities. Rural areas have 63% of sub-Saharan Africa population but only 37% of its doctors. Although attrition of health care workers is implicated in the human resources for health crisis in the rural settings, few studies report attrition rates and risk factors for attrition in rural district hospitals in sub-Saharan Africa. Methods We assessed attrition of health care workers at a Kirehe District Hospital in rural Rwanda. We included all hospital staff employed as of January 1, 2013 in this retrospective cohort study. We report the proportion of staff that left employment during 2013, and used a logistic regression to assess individual characteristics associated with attrition. Results Of the 142 staff employed at Kirehe District Hospital at the start of 2013, 31.7% (n=45) of all staff and 81.8% (n=9) of doctors left employment in 2013. Being a doctor (OR=10.0, 95% CI: 1.9-52.1, p=0.006) and having up to two years of experience at the hospital (OR=5.3, 95% CI: 1.3-21.7, p=0.022) were associated with attrition. Conclusion Kirehe District Hospital experienced high attrition rates in 2013, particularly among doctors. Opportunities for further training through Rwanda’s Human Resources for Health program in 2013 and a two-year compulsory service program for doctors that is not linked to interventions for rural retention may have driven these patterns. Efforts to link these programs with rural placement and retention strategies are recommended.
A New Algorithm for Deduction of Hepatitis B Surface Antigen Subtype Determinants from the Amino Acid Sequence

Objective: We have reexamined hepatitis B virus subtypes to determine the role of specific HBsAg amino acids in serologic reactivity because of problematic genotype/subtype associations seen in a set of geographically diverse serum specimens. Methods: We obtained DNA sequences for 491 HBsAg-positive specimens from geographically distinct locations, determined their genotypes through phylogenetic analysis, and subtyped the specimens using an algorithm derived from published data on the molecular basis of HBsAg subtype reactivity. Problematic samples were subtyped serologically to resolve conflicts based on the amino acid sequence alone. Results: Three isolates were found to have unusual genotype/subtype associations. Examination of the isolates’ amino acid sequences suggested amino acid positions 122, 127, 140, 159 and 160 can be used to determine subtype reactivity from HBsAg amino acid sequences, while position 134, previously thought to play a role, is no longer important. Conclusions: This re-examination of hepatitis B virus subtypes shows the involvement of amino acid positions 122, 127, 140, 159 and 160 in HBsAg reactivity. While d, y, and r reactivities are controlled by single amino acid changes, w reactivity is determined by positions 122, 127, 140, and 159.
Decreased expression of LncRNA SRA1 in hepatocellular carcinoma and its clinical significance.

BACKGROUND Hepatocellular carcinoma (HCC), is an extremely aggressive malignancy with poor prognosis and high fatality rates worldwide. Accumulating evidence indicated that novel biomarkers are required to get a better understanding of the biological mechanisms of HCC. SRA1, a long non-coding RNA (lncRNA), serves as a critical regulator in several cancers. However, the association between SRA1 expression and tumorigenesis in HCC tissues remains unclear. OBJECTIVE In the present study, we evaluated the expression of SRA1 in HCC and its clinical association. METHODS The expression levels of SRA1 in 67 pairs of cancer tissues and adjacent normal tissues from HCC patients were detected using quantitative real-time PCR. Expression of SRA1 in HCC cell lines compared with normal human hepatocyte cell lines was also measured. Finally, the potential associations between its level in HCC tissues and the clinicopathological parameters were analyzed as well. RESULTS The results indicated that the expression levels of SRA1 in HCC were remarkably decreased, compared with matched normal tissues (P< 0.001). Levels of SRA1 in HCC cell lines were also significantly decreased than that in normal human hepatocyte cell line L-02. Additionally, the levels of SRA1 were significantly associated with tumor size (P= 0.020) and serum GLU level (P= 0.046). CONCLUSIONS This study highlighted that SRA1 was downregulated in HCC and might serve as a tumor suppressor in HCC, which laid a solid foundation for future research.
Voxel-based morphometry analyses in Alzheimer's disease

Alzheimer's disease (AD) is a neurodegenerative disease recognized as one of the most important medical problems affecting the elderly. It is characterized by an irreversible loss of neurons which is mostly pronounced in the grey matter and specifically in the hippocampus. The aim of this paper is to identify alterations in grey matter in MRI images of AD patients, when compared to those of healthy volunteers, using Voxel-Based Morphometry (VBM). The latter is a widely used statistical-based technique that allows the detection of alterations in brain tissue. In our study, we used VBM to detect significant grey matter alterations of the hippocampal region in AD patients, which is consistent with previous findings reported in the literature. We also examined how the Mini Mental State Examination (MMSE) scores relates to the volume differences detected by VBM1.
Implantation of low-level laser irradiated mesenchymal stem cells into the infarcted rat heart is associated with reduction in infarct size and enhanced angiogenesis.

OBJECTIVE The aim of the present study was to evaluate the possible beneficial effects of implantation of laser-irradiated mesenchymal stem cells (MSCs) into the infarcted rat heart. BACKGROUND DATA It was demonstrated that low-level laser therapy (LLLT) upregulates cytoprotective factors in ischemic tissues. MATERIALS AND METHODS MSCs were isolated from rat bone marrow and grown in culture. The cells were laser irradiated with a Ga-Al-As laser (810 nm wavelength), labeled with 5-bromo-2'deoxyuridine (BrdU), and then implanted into infarcted rat hearts. Non-irradiated cells were similarly labeled and acted as controls. Hearts were excised 3 wk later and cells were stained for BrdU and c-kit immunoreactivity. RESULTS Infarcted hearts that were implanted with laser-treated cells showed a significant reduction of 53% in infarct size compared to hearts that were implanted with non-laser-treated cells. The hearts implanted with laser-treated cells prior to implantation demonstrated a 5- and 6.3-fold significant increase in cell density that positively immunoreacted to BrdU and c-kit, respectively, as compared to hearts implanted with non-laser-treated cells. A significantly 1.4- and 2-fold higher level of angiogenesis and vascular endothelial growth factor, respectively, were observed in infarcted hearts that were implanted with laser-treated cells compared to non-laser-treated implanted cells. CONCLUSION The findings of the present study provide the first evidence that LLLT can significantly increase survival and/or proliferation of MSCs post-implantation into the ischemic/infarcted heart, followed by a marked reduction of scarring and enhanced angiogenesis. The mechanisms associated with this phenomenon remain to be elucidated in further studies.
PENGARUH ZAKAT TERHADAP KEMISKINAN DI PROVINSI ACEH

Abstrak Penelitian ini bertujuan untuk melihat bagaimana pengaruh zakat terhadap kemiskinan di Provinsi Aceh. Data yang digunakan adalah data sekunder dalam bentuk data panel yang diambil dari BPS dan Aceh dalam angka yang meliputi 23 kabupaten dan kota seluruh Aceh. Model yang digunakan adalah model analisis linear sederhana. Hasil dari penelitian ini menunjukkan bahwa zakat mempunyai pengaruh negatif akan tetapi tidak signifikan terhadap kemiskinan yang disebabkan oleh penerimaan dan penyaluran yang tidak merata. Peneliti menyarankan untuk peneliti sela njutnya agar menambahkan beberapa variabel lain yang memengaruhi tingkat kemiskinan di provinsi Aceh. Sehingga hasil yang didapatkan bisa berkontribusi dalam menurunkan tingkat kemiskinan di provinsi Aceh. Selain itu peneliti selanjutnya juga harus memperhatikan bagaimana tingkat kesadaran masyarakat khususnya di beberapa Kabupaten/Kota Provinsi Aceh terhadap zakat dan juga bagaimana sistem pendistribusian zakat dari Lembaga Amil Zakat kepada masyarakat. Kata kunci : Zakat, Kemiskinan, Distribusi
Influence of Attention Deficit Hyperactivity Disorder and Conduct Disorder on Opioid Dependence Severity and Psychiatric Comorbidity in Chronic Methadone-Maintained Patients

Background: Persistent attention deficit hyperactivity disorder (ADHD) and a history of conduct disorder (CD) are highly prevalent among patients with substance use disorders (SUD). We examined the influence of both diagnoses on problem severity, psychiatric comorbidity, and quality of life in methadone-maintained patients. Methods: 193 patients in long-term methadone maintenance treatment (MMT) were assessed for ADHD through a semi-structured interview. Psychiatric disorders and SUD were assessed with the MINI, the CIDI-SAM, and the SIDP-IV. Results: Childhood ADHD was diagnosed in 68 (35.2%) patients; 48 (24.9%) had persisting ADHD; a CD history was present in 116 (60.1%). Patients with adult ADHD had significantly higher problem severity scores, lower quality of life scores, more comorbid SUD and more psychiatric comorbidity. Although both ADHD and CD contributed to problem severity, addictive pathology and psychopathology, ADHD was found to substantially increase the risk of psychiatric comorbidity, independent of CD. Conclusion: ADHD in MMT patients is characterised by greater addiction severity and more comorbid psychopathology, only partly explained by the influence of a coexisting CD. The presence of ADHD in a substantial minority of patients accentuates the need for early detection and treatment of this complicating disorder.
Increased Acoustic Startle Responses in IBS Patients During Abdominal and Nonabdominal Threat

Background and Aims: Visceral hypersensitivity and symptom severity in Irritable Bowel Syndrome (IBS) are both exacerbated by stress. The eye-blink startle response represents a noninvasive measure of central defensive responding. Evidence for central hyperexcitability was studied in IBS patients by examining potentiation of the startle reflex to a nociceptive threat. Methods: Acoustic startle responses were examined in female IBS patients (n = 42) and healthy controls (n = 22) during cued periods in which an aversive abdominal or biceps stimulation was impossible (safe), possible (imminent threat) or anticipated (period just before the imminent threat), and during a threatening context (muscle stimulation pads attached but no cues for stimulation). Results: Both groups showed potentiation of startle responses during the imminent threat condition compared with both the anticipation and safe conditions. Compared with controls, IBS subjects showed significantly larger startle responses during anticipation and imminent threat conditions after receiving an initial aversive stimulation. There were no group differences during the context threat manipulation. Moreover, in IBS patients but not controls, higher neuroticism was associated with larger startle responses during safe and anticipation conditions but not imminent threat, whereas anxiety symptoms were negatively associated with startle magnitude during imminent threat. Conclusions: Female IBS patients show increased startle responses to threat of aversive stimulation at both abdominal and nonabdominal sites compared with controls. The data represent the first demonstration of altered threat potentiated startle in a functional pain condition and provide support for the use of these paradigms in further evaluation of affective mechanisms in these disorders. ASR = acoustic startle response; IBS = irritable bowel syndrome; GI = gastrointestinal; HADS = Hospital Anxiety and Depression Scales; EPQ-N = Neuroticism scale from the Eysenck Personality Questionnaire; EMG = electromyogram; EOG = electrooculogram; SS = startle stimulus; IGCM = individual growth curve modeling; ANOVA = analysis of variance; ANCOVA = analysis of covariance.
Novel and Recently Evolved MicroRNA Clusters Regulate Expansive F-BOX Gene Networks through Phased Small Interfering RNAs in Wild Diploid Strawberry1[OPEN]

Identification and analysis of novel miRNAs in diploid strawberry revealed mechanisms of miRNA evolution and miRNA-mediated regulation of large gene families. The wild strawberry (Fragaria vesca) has recently emerged as an excellent model for cultivated strawberry (Fragaria × ananassa) as well as other Rosaceae fruit crops due to its short seed-to-fruit cycle, diploidy, and sequenced genome. Deep sequencing and parallel analysis of RNA ends were used to identify F. vesca microRNAs (miRNAs) and their target genes, respectively. Thirty-eight novel and 31 known miRNAs were identified. Many known miRNAs targeted not only conserved mRNA targets but also developed new target genes in F. vesca. Significantly, two new clusters of miRNAs were found to collectively target 94 F-BOX (FBX) genes. One of the miRNAs in the new cluster is 22 nucleotides and triggers phased small interfering RNA production from six FBX genes, which amplifies the silencing to additional FBX genes. Comparative genomics revealed that the main novel miRNA cluster evolved from duplications of FBX genes. Finally, conserved trans-acting siRNA pathways were characterized and confirmed with distinct features. Our work identified novel miRNA-FBX networks in F. vesca and shed light on the evolution of miRNAs/phased small interfering RNA networks that regulate large gene families in higher plants.
Awareness and knowledge about human papillomavirus infection and vaccination among women in UAE.

BACKGROUND Cervical cancer is the second commonest female cancer worldwide. The 50-55 cases of cervical cancer are reported annually in the UAE. There is a scarcity of data from Middle Eastern region regarding knowledge and attitude of women towards HPV infection, cervical cancer prevention and HPV vaccine. The aim of our study was to assess the knowledge of women regarding HPV infection and vaccine in UAE. MATERIALS AND METHODS A cross-sectional survey of 640 women aged 18-50 years was conducted in Al-Ain district in UAE using convenience sampling. Women with previous diagnosis of cervical cancer, non- residents of UAE, younger than 18 or older than 50 years of age and those unable to speak Arabic or English were excluded from the study. Logistic regression analysis was performed to assess the association of HPV knowledge with independent factors like age, education etc. RESULTS Only 29% of our sampled women have ever heard of HPV infection. Only 15.3% women recognized it as STI. Only about 22% women have also heard of the HPV vaccine. Three quarter of the women in our study thought that cervical cancer can be prevented. About 28% recognized vaccine as a preventive measure against cervical cancer. Age (AOR 1.049, 95%CI 1.02-1.08) and husband's level of education were found to be significant (p value 0.015) after adjusting for women's age. CONCLUSIONS The knowledge of HPV infection and vaccine is low in the UAE. Few women recognized HPV as sexually transmitted infection. Increasing age and husband's education are associated with better knowledge of HPV infection.
Incorporating validation subsets into discrete proportional hazards models for mismeasured outcomes

Standard proportional hazards methods are inappropriate for mismeasured outcomes. Previous work has shown that outcome mismeasurement can bias estimation of hazard ratios for covariates. We previously developed an adjusted proportional hazards method that can produce accurate hazard ratio estimates when outcome measurement is either non‐sensitive or non‐specific. That method requires that mismeasurement rates (the sensitivity and specificity of the diagnostic test) are known. Here, we develop an approach to handle unknown mismeasurement rates. We consider the case where the true failure status is known for a subset of subjects (the validation set) until the time of observed failure or censoring. Five methods of handling these mismeasured outcomes are described and compared. The first method uses only subjects on whom complete data are available (validation subset), whereas the second method uses only mismeasured outcomes (naive method). Three other methods include available data from both validated and non‐validated subjects. Through simulation, we show that inclusion of the non‐validated subjects can improve efficiency relative to use of the complete case data only and that inclusion of some true outcomes (the validation subset) can reduce bias relative to use of mismeasured outcomes only. We also compare the performance of the validation methods proposed using an example data set. Copyright © 2008 John Wiley & Sons, Ltd.
Discrimination Efficacy of Fecal Pollution Detection in Different Aquatic Habitats of a High-Altitude Tropical Country, Using Presumptive Coliforms, Escherichia coli, and Clostridium perfringens Spores

ABSTRACT The performance of rapid and practicable techniques that presumptively identify total coliforms (TC), fecal coliforms (FC), Escherichia coli, and Clostridium perfringens spores (CP) by testing them on a pollution gradient in differing aquatic habitats in a high-altitude tropical country was evaluated during a 12-month period. Site selection was based on high and low anthropogenic influence criteria of paired sites including six spring, six stream, and four lakeshore sites spread over central and eastern parts of Uganda. Unlike the chemophysical water quality, which was water source type dependent (i.e., spring, lake, or stream), fecal indicators were associated with the anthropogenic influence status of the respective sites. A total of 79% of the total variability, including all the determined four bacteriological and five chemophysical parameters, could be assigned to either a pollution, a habitat, or a metabolic activity component by principal-component analysis. Bacteriological indicators revealed significant correlations to the pollution component, reflecting that anthropogenic contamination gradients were followed. Discrimination sensitivity analysis revealed high ability of E. coli to differentiate between high and low levels of anthropogenic influence. CP also showed a reasonable level of discrimination, although FC and TC were found to have worse discrimination efficacy. Nonpoint influence by soil erosion could not be detected during the study period by correlation analysis, although a theoretical contamination potential existed, as investigated soils in the immediate surroundings often contained relevant concentrations of fecal indicators. The outcome of this study indicates that rapid techniques for presumptive E. coli and CP determination may be reliable for fecal pollution monitoring in high-altitude tropical developing countries such as those of Eastern Africa.
Fiscal Policy in the European Economic and Monetary Union: An Evolving View

At the heart of ﬁscal rules in the EU is the (in)famous 3%-threshold: countries should avoid deﬁcits exceeding 3% of GDP. If deﬁcits exceed 3% of GDP, countries are to undertake consolidation ef-forts. This rule has been hotly debated since its introduction. Many argue that it is inherently procy-clical, by forcing countries with ‘excessive’ deﬁcits to consolidate during recessions. Others stress the poor compliance with European fiscal rules. Two chapters investigate the effectiveness of European fiscal rules. On the plus side, if recom-mended to consolidate, member states do impose fiscal measures aimed at reducing excessive budget deficits. At the same time, and less desirable, the 3%-rule seems to elicit strategic behavior. Fiscal forecasts for euro area countries by the European Commission, which are used to judge com-pliance with the fiscal rules, are biased upwards when the budget deﬁcit threatens to exceed the 3%-threshold. The next two chapters look into the economic consequences of consolidation efforts during the crisis. Although significant consolidation measures, implemented by the Dutch government, might have come at the expense of economic growth – at least in the short term – they do seem to have improved investors’ perception of the government’s solvency. More generally, public investments were severely reduced in many developed economies. However, results show that in general the decline of public capital has not diminished potential growth, suggesting that the current level of public investments does not pose an immediate threat to potential output in most countries.
Extraintestinal Campylobacter jejuni and Campylobacter coli infections: host factors and strain characteristics.

To determine whether extraintestinal isolates of Campylobacter jejuni and Campylobacter coli are the consequence of unusual host or bacterial characteristics, we studied clinical and bacteriologic features of 24 extraintestinal infections. Common serotypes and auxotypes were present among the extraintestinal isolates. Gastrointestinal isolates were more susceptible to normal human serum than were the systemic isolates; however, the ranges overlapped considerably. Predispositions to systemic spread were present in 52% of patients with extraintestinal infections; isolates from these patients were more often (73%) serum sensitive than were isolates from patients without predispositions (9%; P = .002). By sodium dodecyl sulfate-polyacrylamide gel electrophoresis, no specific protein band was associated with serum resistance, and all isolates of C. jejuni and C. coli had rough-type lipopolysaccharide profiles. Serum susceptibility was inversely correlated with carbohydrate or ketodeoxyoctonate (KDO) fraction of cell weight and directly correlated with KDO:carbohydrate ratio. Our results suggest that either host defects or specific bacterial virulence characteristics, such as serum resistance, possibly related to length of lipopolysaccharide side chain, may be responsible for extraintestinal infections due to C. jejuni and C. coli.
Does spatial variation in predation pressure modulate selection for aposematism?

Abstract It is widely believed that aposematic signals should be conspicuous, but in nature, they vary from highly conspicuous to near cryptic. Current theory, including the honest signal or trade‐off hypotheses of the toxicity–conspicuousness relationship, cannot explain why adequately toxic species vary substantially in their conspicuousness. Through a study of similarly toxic Danainae (Nymphalidae) butterflies and their mimics that vary remarkably in their conspicuousness, we show that the benefits of conspicuousness vary along a gradient of predation pressure. Highly conspicuous butterflies experienced lower avian attack rates when background predation pressure was low, but attack rates increased rapidly as background predation pressure increased. Conversely, the least conspicuous butterflies experienced higher attack rates at low predation pressures, but at high predation pressures, they appeared to benefit from crypsis. Attack rates of intermediately conspicuous butterflies remained moderate and constant along the predation pressure gradient. Mimics had a similar pattern but higher attack rates than their models and mimics tended to imitate the signal of less attacked model species along the predation pressure gradient. Predation pressure modulated signal fitness provides a possible mechanism for the maintenance of variation in conspicuousness of aposematic signals, as well as the initial survival of conspicuous signals in cryptic populations in the process of aposematic signal evolution, and an alternative explanation for the evolutionary gain and loss of mimicry.