bluuebunny/crossref_metadata_2025_split huggingface dataset:
New trends on mobile learning area: The review of published articles on mobile learning in science direct database
Authors: Soykan Emrah , Uzunboylu Huseyin 
Published: November 2015

Articles published in Science Direct between 2009 and 2014 (May) were screened in this research. This is because of its respectable position in the field of technology and peer-reviewed secured structure of this database. From a total of 161 articles within the scope of the screening 156 articles were included in the study. Through this research, new trends in mobile learning activities in recent years will be determined and a new way will be shown for researchers . "Mobile learning" keywords used during researching process and all the articles with "mobile learning" keywords were included in this study. As a result of this research, it is determined that the most studies in the field of mobile learning were published in 2013 in Malaysia, UK and Taiwan. Particularly undergraduate students was selected as the sample group of the researches. It is emerged that, experimental research was used maximum as a research model. Quantitative data collection tools were used most as a means of data collection. It was emerged that foreign language education is the most widely used field in mobile learning. It is seen that smart phonesÂ as mobile learning devices and IOS operating system as an operating system were used in the most researches. Mobile-based method is seen to be used as the teaching method in the present study.Â Keywords: mobile learning, mobile education, mobile technology, content analysis.
Ecology nature of science: shared discussions and practices among ecologists and high school teachers
Authors: Jordan Rebecca C. , Brooks Wesley R. , DeLisi Jacqueline R. , Gray Steven A. , Berkowitz Alan R. 
Published: November 2015

While scientific and environmental literacy is said to be low amongst Americans, there are little data regarding the public's ability to think critically about environmental data. Many grade school science teachers aim to increase their students' capacity to use scientific and environmental information outside of the classroom, but fulfilling these goals requires a general understanding of scientific concepts and a keen understanding of how scientific evidence and claims are generated. In this manuscript, we describe the professional development elicited by our Ecosystems and Evidence project. As part of this project, we gathered a team of master teachers, science educators, and ecologists. This team was then formed in to two learning communities in New York and New Jersey, to collectively discuss the nature of science (NOS) construct and to develop a framework for what we termed ecology nature of science (ENOS).Participating teachers developed a more practice‐oriented view of their instruction and assessment that centered on the tenets of NOS and ENOS. Specifically, we noted a shift in their instructional style from encouraging their students to learn about science to actually engage in science. We argue that practice‐oriented experiences that articulate the practices of science within specific contexts much like ENOS, can enable learners (whether they be professional teachers or students) to use new science concepts and skills in a more meaningful context and provide an authentic sense of how science is done.
Does Adjunctive Use of Growth Factors Improve Clinical Outcomes of Soft Tissue Grafting at Miller Class III Recession Defects? A Review of Current Evidence
Authors: Geisinger Maria L. , Trammell Kyle , Holmes Carolyn M. , Kaur Maninder , Geurs Nicolaas C. 
Published: November 2015

Focused Clinical QuestionIn patients with gingival recession that is classified as Miller Class III, does adjunctive use of local growth factors with gingival grafting procedures improve clinical outcomes?Clinical ScenarioA 31‐year‐old female presents with a chief complaint of gingival recession (GR) at teeth #4 to #13 (Fig. 1). Interproximal bone loss coronal to the level of the buccal GR is present. She is concerned about esthetics and would like to maximize her chance for complete root coverage. Her medical history is non‐contributory, and she has no contraindications to routine dental care. Because of the number of teeth involved and the difficulty in harvesting autogenous tissues, she is treated with acellular dermal matrix§ and enamel matrix derivative‖ with a coronally advanced flap at teeth #4 to #13 (Figs. 2 and 3). Final results reveal significant root coverage on all teeth and complete root coverage on teeth #7 to #10. This results in an esthetically acceptable result (Fig. 4).
Inequalities of Income and Inequalities of Longevity: A Cross-Country Study
Authors: Neumayer Eric , Plümper Thomas 
Published: November 2015

Objectives. We examined the effects of market income inequality (income inequality before taxes and transfers) and income redistribution via taxes and transfers on inequality in longevity. Methods. We used life tables to compute Gini coefficients of longevity inequality for all individuals and for individuals who survived to at least 10 years of age. We regressed longevity inequality on market income inequality and income redistribution, and we controlled for potential confounders, in a cross-sectional time-series sample of up to 28 predominantly Western developed countries and up to 37 years (1974–2011). Results. Income inequality before taxes and transfers was positively associated with inequality in the number of years lived; income redistribution (the difference between market income inequality and income inequality after taxes and transfers were accounted for) was negatively associated with longevity inequality. Conclusions. To the extent that our estimated effects derived from observational data are causal, governments can reduce longevity inequality not only via public health policies, but also via their influence on market income inequality and the redistribution of incomes from the relatively rich to the relatively poor.
Barriers to Cervical Screening Among Sex Workers in Vancouver
Authors: Duff Putu , Ogilvie Gina , Shoveller Jean , Amram Ofer , Chettiar Jill , Nguyen Paul , Dobrer Sabina , Montaner Julio , Shannon Kate 
Published: November 2015

Objectives. We longitudinally examined the social, structural, and geographic correlates of cervical screening among sex workers in Metropolitan Vancouver, British Columbia, to determine the roles that physical and social geography play in routine reproductive health care access. Methods. Analysis drew on (2010–2013) data from an open prospective cohort of sex workers (An Evaluation of Sex Workers’ Health Access). We used multivariable logistic regression with generalized estimating equations (GEE) to model correlates of regular cervical screening. Results. At baseline, 236 (38.6%) of 611 sex workers in our sample had received cervical screening, and 63 (10.3%) were HIV-seropositive. In multivariable GEE analysis, HIV-seropositivity (adjusted odds ratio [AOR] = 1.65; 95% confidence interval [CI] = 1.06, 2.58) and accessing outreach services (AOR = 1.35; 95% CI = 1.09, 1.66) were correlated with regular cervical screening. Experiencing barriers to health care access (e.g., poor treatment by health care staff, limited hours of operation, and language barriers) reduced odds of regular Papanicolaou testing (AOR = 0.81; 95% CI = 0.65, 1.00). Conclusions. Sex workers in Metropolitan Vancouver had suboptimal levels of cervical screening. Innovative mobile outreach service delivery models offering cervical screening as one component of sex worker–targeted comprehensive sexual and reproductive health services may hold promise.
Patterns and Trends of Newly Diagnosed HIV Infections Among Adults and Adolescents in Correctional and Noncorrectional Facilities, United States, 2008–2011
Authors: Barskey Albert E. , Surendera Babu Aruna , Hernandez Angela , Espinoza Lorena 
Published: November 2015

Objectives. We aimed to determine whether the patterns and trends of HIV infections newly diagnosed within correctional and noncorrectional facilities differ. Methods. We classified persons newly diagnosed with HIV infection in the United States between 2008 and 2011 (n = 181 710) by correctional and noncorrectional facilities where diagnoses were first made, and stratified by sex, age group, race/ethnicity, transmission category, and diagnosis year. Results. An estimated 9187 persons were newly diagnosed with HIV infection in 2008 to 2011 while incarcerated, representing approximately 5.1% of the 181 710 HIV infections diagnosed in the United States during this period. Of these incarcerated persons, 84% were male, 30% were aged 30 to 39 years, 59% were Black/African American, and 51% of the men had been exposed through male-to-male sexual contact. Yearly numbers of diagnoses declined by 9.9% in correctional versus 0.3% in noncorrectional facilities. The percentage with a late HIV diagnosis was significantly lower in correctional than in noncorrectional facilities (prevalence ratio = 0.52; 95% confidence interval = 0.49, 0.55). Conclusions. Initial HIV diagnosis occurred sooner after HIV infection onset in correctional than in noncorrectional settings, pointing to the need for efficient referral systems after release.
Free Bus Travel and Physical Activity, Gait Speed, and Adiposity in the English Longitudinal Study of Ageing
Authors: Webb Elizabeth , Laverty Anthony , Mindell Jenny , Millett Chris 
Published: November 2015

Objectives. We investigated associations between having a bus pass, enabling free local bus travel across the United Kingdom for state pension–aged people, and physical activity, gait speed, and adiposity. Methods. We used data on 4650 bus pass–eligible people (aged ≥ 62 years) at wave 6 (2012–2013) of the English Longitudinal Study of Ageing in regression analyses. Results. Bus pass holders were more likely to be female (odds ratio [OR] = 1.67; 95% confidence interval [CI] = 1.38, 2.02; P < .001), retired (OR = 2.65; 95% CI = 2.10, 3.35; P < .001), without access to a car (OR = 2.78; 95% CI = 1.83, 4.21; P < .001), to use public transportation (OR = 10.26; 95% CI = 8.33, 12.64; P < .001), and to be physically active (OR = 1.43; 95% CI = 1.12, 1.84; P = .004). Female pass holders had faster gait speed (b = 0.06 meters per second; 95% CI = 0.02, 0.09; P = .001), a body mass index 1 kilogram per meter squared lower (b = –1.20; 95% CI = –1.93, –0.46; P = .001), and waist circumference 3 centimeters smaller (b = –3.32; 95% CI = –5.02, –1.62; P < .001) than women without a pass. Conclusions. Free bus travel for older people helps make transportation universally accessible, including for those at risk for social isolation. Those with a bus pass are more physically active. Among women in particular, the bus pass is associated with healthier aging.
Community-Based Health Financing and Child Stunting in Rural Rwanda
Authors: Lu Chunling , Mejía-Guevara Iván , Hill Kenneth , Farmer Paul , Subramanian S. V. , Binagwaho Agnes 
Published: November 2015

Objectives. We analyzed the likelihood of rural children (aged 6–24 months) being stunted according to whether they were enrolled in Mutuelles, a community-based health-financing program providing health insurance to rural populations and granting them access to health care, including nutrition services. Methods. We retrieved health facility data from the District Health System Strengthening Tool and calculated the percentage of rural health centers that provided nutrition-related services required by Mutuelles’ minimum service package. We used data from the 2010 Rwanda Demographic and Health Survey and performed multilevel logistic analysis to control for clustering effects and sociodemographic characteristics. The final sample was 1061 children. Results. Among 384 rural health centers, more than 90% conducted nutrition-related campaigns and malnutrition screening for children. Regardless of poverty status, the risk of being stunted was significantly lower (odds ratio = 0.60; 95% credible interval = 0.41, 0.83) for Mutuelles enrollees. This finding was robust to various model specifications (adjusted for Mutuelles enrollment, poverty status, other variables) or estimation methods (fixed and random effects). Conclusions. This study provides evidence of the effectiveness of Mutuelles in improving child nutrition status and supported the hypothesis about the role of Mutuelles in expanding medical and nutritional care coverage for children.
Public Health and Hospitals: Lessons Learned From Partnerships in a Changing Health Care Environment
Authors: Scutchfield F. Douglas , Prybil Lawrence , Kelly Ann V. , Mays Glen P. 
Published: November 2015

Recent changes in policymaking, such as the passage of the Patient Protection and Affordable Care Act, have ushered in a new era in community health partnerships. To investigate characteristics of effective collaboration between hospitals, their parent systems, and the public health community, with the support of major hospital, medical, and public health associations, we compiled a list of 157 successful partnerships. This set was subsequently narrowed to 12 successful and diverse partnerships. After conducting site visits in each of the partnerships’ communities and interviews with key partnership participants, we extracted lessons about their success. The lessons we have learned from our investigation have the potential to assist others as they develop partnerships.
Tempest in a K-Cup: Red Flags on Green Mountain
Authors: Caplan Dennis H. , Dutta Saurav K. , Marcinko David J. 
Published: November 2015

ABSTRACT
“Tempest in a K-Cup” chronicles financial reporting challenges faced by Green Mountain Coffee Roasters, Inc. during a period of rapid growth following its acquisition of Keurig. The case focuses on events during 2011–2012, a period in which Green Mountain experienced significant stock price volatility, was challenged by the Securities and Exchange Commission (SEC) about its business relationships and financial disclosures, and was subject to highly publicized scrutiny by a well-known hedge-fund manager, David Einhorn, of Greenlight Capital. Students completing the case will apply accounting guidance and perform financial statement analysis to gain an appreciation for the scrutiny that companies receive from regulators, investors, and journalists. The case and its requirements are designed to be used in intermediate accounting, financial statement analysis, forensic accounting, and accounting capstone courses.
Critical Role and Therapeutic Control of the Lectin Pathway of Complement Activation in an Abortion-Prone Mouse Mating
Authors: Petitbarat Marie , Durigutto Paolo , Macor Paolo , Bulla Roberta , Palmioli Alessandro , Bernardi Anna , De Simoni Maria-Grazia , Ledee Nathalie , Chaouat Gerard , Tedesco Francesco 
Published: November 2015

Abstract
The abortion-prone mating combination CBA/J × DBA/2 has been recognized as a model of preeclampsia, and complement activation has been implicated in the high rate of pregnancy loss observed in CBA/J mice. We have analyzed the implantation sites collected from DBA/2-mated CBA/J mice for the deposition of the complement recognition molecules using CBA/J mated with BALB/c mice as a control group. MBL-A was observed in the implantation sites of CBA/J × DBA/2 combination in the absence of MBL-C and was undetectable in BALB/c-mated CBA/J mice. Conversely, C1q was present in both mating combinations. Searching for other complement components localized at the implantation sites of CBA/J × DBA/2, we found C4 and C3, but we failed to reveal C1r. These data suggest that complement is activated through the lectin pathway and proceeds to completion of the activation sequence as revealed by C9 deposition. MBL-A was detected as early as 3.5 d of pregnancy, and MBL-A deficiency prevented pregnancy loss in the abortion-prone mating combination. The contribution of the terminal complex to miscarriage was supported by the finding that pregnancy failure was largely inhibited by the administration of neutralizing Ab to C5. Treatment of DBA/2-mated CBA/J mice with Polyman2 that binds to MBL-A with high affinity proved to be highly effective in controlling the activation of the lectin pathway and in preventing fetal loss.
Cutting Edge: Nanogel-Based Delivery of an Inhibitor of CaMK4 to CD4+ T Cells Suppresses Experimental Autoimmune Encephalomyelitis and Lupus-like Disease in Mice
Authors: Otomo Kotaro , Koga Tomohiro , Mizui Masayuki , Yoshida Nobuya , Kriegel Christina , Bickerton Sean , Fahmy Tarek M. , Tsokos George C. 
Published: November 2015

Abstract
Treatment of autoimmune diseases is still largely based on the use of systemically acting immunosuppressive drugs, which invariably cause severe side effects. Calcium/calmodulin-dependent protein kinase IV is involved in the suppression of IL-2 and the production of IL-17. Its pharmacologic or genetic inhibition limits autoimmune disease in mice. In this study, we demonstrate that KN93, a small-molecule inhibitor of calcium/calmodulin-dependent protein kinase IV, targeted to CD4+ T cells via a nanolipogel delivery system, markedly reduced experimental autoimmune encephalomyelitis and was 10-fold more potent than the free systemically delivered drug in the lupus mouse models. The targeted delivery of KN93 did not deplete T cells but effectively blocked Th17 cell differentiation and expansion as measured in the spinal cords and kidneys of mice developing experimental autoimmune encephalomyelitis or lupus, respectively. These results highlight the promise of cell-targeted inhibition of molecules involved in the pathogenesis of autoimmunity as a means of advancing the treatment of autoimmune diseases.
Fetal echopsy (ultrasonographic autopsy) of an acardius myelancephalus and its correlation with antenatal ultrasonographic findings
Authors: Karippaliyil Balakumar , Karippaliyil Milind , Karippaliyil Misha 
Published: November 2015

Abstract
Aberrant transplacental arteriovenous shunts between the placental and cord vessels of monozygotic monoamniotic twins or triplets result in the formation of an acardius. The prenatal diagnosis of this condition has been reported occasionally in the literature. A subtype categorized as acardius myelancephalus was diagnosed at 32 weeks of gestation by ultrasonography (USG). The pregnancy was aborted because of poor prognostic predictors and the acardius was subjected to ultrasonographic autopsy (fetal echopsy). The antenatal USG features were correlated with echopsy findings for confirmation of the antenatal findings and for a better visual perception of the prenatal diagnostic features. The echopsy revealed more precise details. Fetal echopsy avoids the medicolegal problems concerned with parental consent for classical invasive fetal autopsy.
Qualitative and quantitative diffusion-weighted imaging of the breast at 3T - A useful adjunct to contrast-enhanced MRI in characterization of breast lesions
Authors: Bansal Richa , Shah Viral , Aggarwal Bharat 
Published: November 2015

AbstractObjective: To distinguish between benign and malignant breast lesions on the basis of their signal intensity on diffusion-weighted imaging and their apparent diffusion coefficient (ADC) values at 3 T MRI, along with histopathological correlation. Materials and Methods: A retrospective analysis of 500 patients who underwent 3 T MRI between August 2011 and May 2013 was done. Of these, 226 patients with 232 lesions that were proved by histopathology were included in the study. ADC values were calculated at b values of 0, 1000, and 1500 s/mm2 after identification on contrast-enhanced images and appropriate ROI(Region of interest) placement. ADC value and histopathology correlation was analyzed. Results: Out of 232 lesions, 168 lesions were histologically malignant and 64 were histologically benign. With an ADC cut-off value of 1.1 ×10−3 mm2/s for malignant lesions, a sensitivity of 92.80% and specificity of 80.23% was obtained. Out of 12/232 false-negative lesions, 6 were mucinous carcinoma in which a high ADC value of 1.8-1.9 ×10−3 mm2/s was obtained. Purely DCIS (Ductal carcinoma in situ) lesions presenting as non-mass-like enhancement had a high ADC value of 1.2-1.5 ×10−3 mm2/s, thereby reducing specificity. Conclusion: Diffusion-weighted Imaging and quantitative assessment by ADC values may act as an effective parameter in increasing the diagnostic accuracy and specificity of contrast-enhanced breast MRI in characterization of breast lesions.
Utility of ultrasound and magnetic resonance imaging in prenatal diagnosis of placenta accreta: A prospective study
Authors: Satija Bhawna , Kumar Sanyal , Wadhwa Leena , Gupta Taru , Kohli Supreethi , Chandoke Rajkumar , Gupta Pratibha 
Published: November 2015

Abstract
Context: Placenta accreta is the abnormal adherence of the placenta to the uterine wall and the most common cause for emergency postpartum hysterectomy. Accurate prenatal diagnosis of affected pregnancies allows optimal obstetric management. Aims: To summarize our experience in the antenatal diagnosis of placenta accreta on imaging in a tertiary care setup. To compare the accuracy of ultrasound (USG) with color Doppler (CDUS) and magnetic resonance imaging (MRI) in prenatal diagnosis of placenta accreta. Settings and Design: Prospective study in a tertiary care setup. Materials and Methods: A prospective study was conducted on pregnant females with high clinical risk of placenta accreta. Antenatal diagnosis was established based on CDUS and MRI. The imaging findings were compared with final diagnosis at the time of delivery and/or pathologic examination. Statistical Analysis Used: The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were calculated for both CDUS and MRI. The sensitivity and specificity values of USG and MRI were compared by the McNemar test. Results: Thirty patients at risk of placenta accreta underwent both CDUS and MRI. Eight cases of placenta accreta were identified (3 vera, 4 increta, and 1 percreta). All patients had history of previous cesarean section. Placenta previa was present in seven out of eight patients. USG correctly identified the presence of placenta accreta in seven out of eight patients (87.5% sensitivity) and the absence of placenta accreta in 19 out of 22 patients (86.4% specificity). MRI correctly identified the presence of placenta accreta in 6 out of 8 patients (75.0% sensitivity) and absence of placenta accreta in 17 out of 22 patients (77.3% specificity). There were no statistical differences in sensitivity (P = 1.00) and specificity (P = 0.687) between USG and MRI. Conclusions: Both USG and MRI have fairly good sensitivity for prenatal diagnosis of placenta accreta; however, specificity does not appear to be as good as reported in other studies. Both modalities have complimentary role and in cases of inconclusive findings with one imaging modality, the other modality may be useful for obtaining the diagnosis. CDUS remains the first primary modality for antenatal diagnosis of placenta accreta, with MRI reserved for cases where USG is inconclusive.
The Recognizability of Recognition: Fragments in the Name of a Not Yet Rhetorical Question
Authors: Doxtader Erik 
Published: November 2015

ABSTRACTShot through with Schlegel's insight that “words often understand themselves better than those who use them,” Walter's Benjamin's 1916 essay, “On Language as Such and on the Language of Man” extends an invitation to reflect on those words that speak to the recognizability of language, the name of that in which language abides and discloses itself. For now, a century after it was first composed as an unsent letter, a close consideration of Benjamin's important essay sheds light on the contemporary question of recognition, the not yet rhetorical question of how the ethical-political stakes of recognition may hinge on the (dis)possession of (its) language.