L1 transfer in the acquisition of manner and path in Spanish by native speakers of English

In this article the authors argue that L1 transfer from English is not only important in the early stages of L2 acquisition of Spanish, but remains influential in later stages if there is not enough positive evidence for the learners to progress in their development (Lefebvre, White, & Jourdan, 2006). The findings are based on analyses of path and manner of movement in stories told by British students of Spanish (N = 68) of three different proficiency levels. Verbs that conflate motion and path, on the one hand, are mastered early, possibly because the existence of Latinate path verbs, such as enter and ascend in English, facilitate their early acquisition by British learners of Spanish. Contrary to the findings of Cadierno (2004) and Cadierno and Ruiz (2006), the encoding of manner, in particular in boundary crossing contexts, seems to pose enormous difficulties, even among students who had been abroad on a placement in a Spanish-speaking country prior to the data collection. An analysis of the frequency of manner verbs in Spanish corpora shows that one of the key reasons why students struggle with manner is that manner verbs are so infrequent in Spanish. The authors claim that scarce positive evidence in the language exposed to and little or no negative evidence are responsible for the long-lasting effect of transfer on the expression of manner

Prospects for Improving the Intrinsic and Extrinsic Properties of Magnesium Diboride Superconducting Strands

The magnetic and transport properties of magnesium diboride films represent performance goals yet to be attained by powder-processed bulk samples and conductors. Such performance limits are still out of the reach of even the best magnesium diboride magnet wire. In discussing the present status and prospects for improving the performance of powder-based wire we focus attention on (1) the intrinsic (intragrain) superconducting properties of magnesium diboride, Hc2 and flux pinning, (2) factors that control the efficiency with which current is transported from grain-to-grain in the conductor, an extrinsic (intergrain) property. With regard to Item-(1), the role of dopants in Hc2 enhancement is discussed and examples presented. On the other hand their roles in increasing Jc, both via Hc2 enhancement as well as direct fluxoid/pining-center interaction, are discussed and a comprehensive survey of Hc2 dopants and flux-pinning additives is presented. Current transport through the powder-processed wire (an extrinsic property) is partially blocked by the inherent granularity of the material itself and the chemical or other properties of the intergrain surfaces. These and other such results indicate that in many cases less than 15% of the conductor's cross sectional area is able to carry transport current. It is pointed out that densification in association with the elimination of grain-boundary blocking phases would yield five-to ten-fold increases in Jc in relevant regimes, enabling the performance of magnesium diboride in selected applications to compete with that of Nb-Sn

Social Capital and Citizens’ Attitudes towards Migrant Workers

This study examines Qatari citizens’ attitudes toward migrant workers. While much research has been conducted on citizens’ attitudes toward the abolition, tightening, or loosening of the Kafāla system in the Gulf Cooperation Council (GCC) countries with regard to migrant workers’ residency rights, and on their contribution to the economic development of these countries, little is known about how citizens’ religiosity and social engagement impact their acceptance of migrant workers. In the present study, we address this question by examining the effects of religious and social capital on Qatari citizens’ preferences for having Arab and Western migrant workers as neighbours, drawing on data from two nationally representative surveys in Qatar. The results indicate that, even after controlling for a wide range of socio-demographic attributes, social capital in terms of trust and bridging social ties has a strong effect on the Qatari nationals’ preferences

From the "Fareej" to Metropolis" Qatar Social Capital Sirvey II

Qatar faces a social and economic transformation today linked to its unique demographic composition. Understanding social interactions within and across its diverse subgroups is critical for understanding and managing this transformation. In its second wave of "From Fareej to Metropolis: A Social Capital Survey of Qatar II", we set out to describe those interactions and to compare them to the findings from the 2011 first wave survey. To achieve this goal, we draw on the concept of social capital, which refers to the sum of correlation indicators between the members of the same community, whether at the level of family and personal relationships, between different groups in the community, or the trust in institutions and public services. 2 Numerous studies support the hypothesis that there is a link between the increase of social capital in a certain community and its prosperity, including the work by Robert Putnam3 on Italian south and north provinces, in which he makes a link between the prosperity of the north and the increase of social capital indicators therein. This executive report presents a comparison between selected findings from the 2011 and 2015 waves of "From Fareej to Metropolis: A Social Capital Survey of Qatar.” The report is organized according to the various social capital literatures into bridging, bonding, and institutional social capital. 4 Bonding indicators examine the relationship between members of the same group and family and personal relationships, while bridging social capital indicators explore the relationship and communication between various groups. Finally, the third section presents the results of the institutional social capital indicators, which examine the attitudes of Qataris and white-collar expats towards government services, media sources, and their participation in charity and volunteer work. The report concludes that social capital in Qatar is still high in terms of within-group bonding relationships. It also indicates a significant increase in the indicators of trust among Qataris and white-collar workers in particular, while the percentage remained stable for the blue-collar workers as compared to the previous wave of the study. Last section of the study notes a rise in confidence among Qataris and white-collar workers in government agencies and services, and in unofficial sources of information such as majlis, the internet, and friends. It is also noted that there is no significant increase in the percentage of people participating in civil society institutions between the two waves of the study

Metarhizium anisopliae Pathogenesis of Mosquito Larvae: A Verdict of Accidental Death

Metarhizium anisopliae, a fungal pathogen of terrestrial arthropods, kills the aquatic larvae of Aedes aegypti, the vector of dengue and yellow fever. The fungus kills without adhering to the host cuticle. Ingested conidia also fail to germinate and are expelled in fecal pellets. This study investigates the mechanism by which this fungus adapted to terrestrial hosts kills aquatic mosquito larvae. Genes associated with the M. anisopliae early pathogenic response (proteinases Pr1 and Pr2, and adhesins, Mad1 and Mad2) are upregulated in the presence of larvae, but the established infection process observed in terrestrial hosts does not progress and insecticidal destruxins were not detected. Protease inhibitors reduce larval mortality indicating the importance of proteases in the host interaction. The Ae. aegypti immune response to M. anisopliae appears limited, whilst the oxidative stress response gene encoding for thiol peroxidase is upregulated. Cecropin and Hsp70 genes are downregulated as larval death occurs, and insect mortality appears to be linked to autolysis through caspase activity regulated by Hsp70 and inhibited, in infected larvae, by protease inhibitors. Evidence is presented that a traditional host-pathogen response does not occur as the species have not evolved to interact. M. anisopliae retains pre-formed pathogenic determinants which mediate host mortality, but unlike true aquatic fungal pathogens, does not recognise and colonise the larval host

استطلاع آراء القطريين والوافدين حول استضافة كأس العالم لكرة القدم 2022

This report presents the results of The Qatar 2022 FIFA World Cup survey of Qatari nationals and white-collar expatriates residing in Qatar. The study was conducted and funded by the Social and Economic Survey Research Institute (SESRI) at Qatar University in collaboration with the University of Florida. The data are intended to inform planners and decision makers, as well as the academic community. All those connected with this project are grateful to the hundreds of Qatari nationals and white-collar residents who gave their valuable time to participate in this survey. The successful completion of the survey was made possible through the contributions of many dedicated individuals who work at the Social and Economic Survey Research Institute (SESRI), Qatar University, and at Department of Tourism, Recreation and Sport Management, College of Health and Human Performance at the University of Florida. The Social & Economic Survey Research Institute (SESRI) is an independent research organization at Qatar University. Since its inception in 2008, it has developed a strong survey-based infrastructure in order to provide high quality survey data for planning and research in the social and economic sectors.الهدف من هذا المشروع هو تقييم مدى تأثير كأس العالم على تغيير نوعية حياة الأشخاص الذين يعيشون في دولة قطر من خلال تقييم تأثير الإعداد لهذا الحدث على البلد والمنطقة. وقد تم الإشارة إلى إرث الفعالية في كلمات رئيس لجنة ملف قطر 2022 ،الشيخ محمد بن حمد آل ثاني: "إن المنافع الاقتصادية ستكون كبيرة لكل بلد في منطقة الشرق الأوسط. وسيكون منصة كبيرة نحو تغيير نظرة العالم الإسلامي ومنطقة الشرق الأوسط للعالم الخارجي". أهداف الدراسة ذات شقين: أ) دراسة تأثيرات الفعالية على الاتجاهات العامة، ونوعية الحياة والتصورات و دعم كأس العالم في دولة قطر وعالقة ذلك مع نوعية حياة المقيمين من أجل تحديد آثار الفعالية على المواطنين و المقيمين في دولة قطر؛ ب) وضع بيانات مرجعية للمواطنين و للمقيمين في دولة قطر بشأن تأثيرات كأس العالم على المنطقة. تتمثل أهمية الدراسة في ثلاث جوانب: أولا توفر بيانات أساسية وتضع أساسا لنهج طولي لتقييم آثار الفعاليات الكبيرة، و هو ما ينقصنا حاليا في أدبيات الاطار النظري. ثانيا اقتراح نموذج لتقييم العوامل التي تؤثر على المواقف تجاه الفعالية، ونوعية الحياة ودعم الفعالية في دولة مثل قطر التي تمثل منطقة الشرق الأوسط والقيم الثقافية والحياتية المرتبطة بالبلد والمنطقة. ثالثا يسمح هذا التقييم بتشكيل وتنفيذ سياسة من شأنها أن تؤدي إلى تدخلات لتحسين نوعية حياة السكان والحصول على تأييدهم تجاه الفعالية من خلال مشاركتهم في عملية استضافة الحدث. بالإضافة إلى ذلك، ستوفر الدراسة لصناعة الرياضة في دولة قطر والمنظمات المرتبطة بكرة القدم، مثل اللجنة العليا للمشاريع والإرث، معلومات تساعد على صياغة استراتيجيات الاتصال ذات الصلة مع وسائل الإعلام وغيرها من الجهات المعنية (مثل، الهيئة العامة للسياحة) و يمكن أن تكون البيانات الأساسية أرضية للدارسين الذين يهدفون إلى مراقبة تصورات مشابهة للعمل/ البحث في المستقبل، و بالتالي إيجاد بصمة في المجال التعليمي. في مسح كأس العالم لكرة القدم 2022 في قطر، تم إجراء مقابلات مع عينة تمثل المواطنين القطريين و الوافدين أصحاب المهن المكتبية. بشكل عام، تم عقد 2163 مقابلة، منها1058))مع المواطنين القطريين و(1105) مع الوافدين من أصحاب المهن المكتبية. تم اختيار المواطنين القطريين و الوافدين أصحاب المهن المكتبية من أسر من جميع البلديات في دولة قطر وتم إجراء مقابلات شخصية باللغة العربية أو الإنجليزية اعتمادا على برنامج استخدام الحاسب. يوجد مزيد من التفاصيل عن منهجية البحث في القسم السابع. ملاحظة: تشير كلمة الوافدون/الوافدين في التقرير إلى أفراد العينة من غير القطريين والذين تم وصفهم في موجز المنهجية بأصحاب المهن المكتبية

Value of hospital antimicrobial stewardship programs [ASPs]:a systematic review

Abstract Background Hospital antimicrobial stewardship programs (ASPs) aim to promote judicious use of antimicrobials to combat antimicrobial resistance. For ASPs to be developed, adopted, and implemented, an economic value assessment is essential. Few studies demonstrate the cost-effectiveness of ASPs. This systematic review aimed to evaluate the economic and clinical impact of ASPs. Methods An update to the Dik et al. systematic review (2000–2014) was conducted on EMBASE and Medline using PRISMA guidelines. The updated search was limited to primary research studies in English (30 September 2014–31 December 2017) that evaluated patient and/or economic outcomes after implementation of hospital ASPs including length of stay (LOS), antimicrobial use, and total (including operational and implementation) costs. Results One hundred forty-six studies meeting inclusion criteria were included. The majority of these studies were conducted within the last 5 years in North America (49%), Europe (25%), and Asia (14%), with few studies conducted in Africa (3%), South America (3%), and Australia (3%). Most studies were conducted in hospitals with 500–1000 beds and evaluated LOS and change in antibiotic expenditure, the majority of which showed a decrease in LOS (85%) and antibiotic expenditure (92%). The mean cost-savings varied by hospital size and region after implementation of ASPs. Average cost savings in US studies were $732 per patient (range:$2.50 to $2640), with similar trends exhibited in European studies. The key driver of cost savings was from reduction in LOS. Savings were higher among hospitals with comprehensive ASPs which included therapy review and antibiotic restrictions. Conclusions Our data indicates that hospital ASPs have significant value with beneficial clinical and economic impacts. More robust published data is required in terms of implementation, LOS, and overall costs so that decision-makers can make a stronger case for investing in ASPs, considering competing priorities. Such data on ASPs in lower- and middle-income countries is limited and requires urgent attention

A review of web-based support systems for students in higher education

Abstract Background Recent evidence suggests that there is an increasing need for accessible and anonymous services to support higher education (HE) students suffering from psychological and/or academic difficulties. Such difficulties can lead to several negative outcomes, including poor academic performance, sub-optimal mental health, reduced study satisfaction, and dropout from study. Currently, universities in the UK lack financial resources and the on-campus mental health services traditionally offered to students are increasingly economically unsustainable. Compounded by the perceived stigma of using such services, mental health providers have been driven to address the escalating needs of students through online services. Methods In this paper, we review online support systems identified through a literature search and a manual search of references in the identified papers. Further systems were identified through web searches, and systems still in development were identified by consultation with researchers in the field. We accessed systems online to extract relevant information, regarding the main difficulties addressed by the systems, the psychological techniques used and any relevant research evidence to support their effectiveness. Conclusion A large number of web-based support systems have been developed to support mental health and wellbeing, although few specifically target HE students. Further research is necessary to establish the effectiveness of such interventions in providing a cost-effective alternative to face-to-face therapy, particularly in certain settings such as HE institutions

Scope actuation system for articulated laparoscopes

Background: An articulated laparoscope comprises a rigid shaft with an articulated distal end to change the viewing direction. The articulation provides improved navigation of the operating field in confined spaces. Furthermore, incorporation of an actuation system tends to enhance the control of an articulated laparoscope. Methods: A preliminary prototype of a scope actuation system to maneuver an off-the-shelf articulated laparoscope (EndoCAMaleon by Karl Storz, Germany) was developed. A user study was conducted to evaluate this prototype for the surgical paradigm of video-assisted thoracic surgery. In the study, the subjects maneuvered an articulated scope under two modes of operation: (a) actuated mode where an operating surgeon maneuvers the scope using the developed prototype and (b) manual mode where a surgical assistant directly maneuvers the scope. The actuated mode was further assessed for multiple configurations based on the orientation of the articulated scope at the incision. Results: The data show the actuated mode scored better than the manual mode on all the measured performance parameters including (a) total duration to visualize a marked region, (a) duration for which scope focus shifts outside a predefined visualization region, and (c) number of times for which scope focus shifts outside a predefined visualization region. Among the different configurations tested using the actuated mode, no significant difference was observed. Conclusions: The proposed articulated scope actuation system facilitates better navigation of an operative field as compared to a human assistant. Secondly, irrespective of the orientation in which an articulated scope’s shaft is inserted through an incision, the proposed actuation system can navigate and visualize the operative field

Assessment of PULP score in predicting 30-day perforated duodenal ulcer morbidity, and comparison of its performance with Boey and ASA, a retrospective study

Background: /aim: Scores commonly employed to risk stratify perforated peptic ulcer patients include ASA (American Society of Anesthesiologists), Boey and peptic ulcer perforation score (PULP). However, few studies assessed and compared the accuracy indices of these three scores in predicting post PPU repair 30-day morbidity. We assessed accuracy indices of PULP, and compared them to Boey and ASA in predicting post perforated duodenal (PDU) ulcer repair 30-day morbidity. Methods: Retrospective chart review of all PDU patients (perforated duodenal ulcers only) at the largest two hospitals in Qatar (N = 152). Data included demographic, clinical, laboratory, operative, and post repair 30-day morbidity. Area under the Curve (AUC), sensitivity and specificity were computed for each of the 3 scores. Multivariate logistic regression assessed the accuracy indices of each score. Results: All patients were males (M age 37.41 years). Post PDU repair 30-day morbidity was 10.5% (16 morbidities). Older age, higher ASA (?3), Boey (?1) or PULP (?8) scores, shock on admission and preoperative comorbidities; and conversely, lower hemoglobin and albumin were all positively significantly associated with higher post PDU 30-day morbidity. PULP displayed the largest AUC (72%), and was the only score to significantly predict 30-day morbidity. The current study is the first to report the sensitivity and specificity of these three scores for post PDU repair 30-day morbidity; and first to assess accuracy indices for PULP in predicting post PDU repair 30-day morbidity. Conclusion: PULP score had the largest AUC and was the only score to significantly predict post PDU repair 30-day morbidity.Scopu