Miracle-dz/UniFAR-FTUs huggingface dataset:
Robust Sparse Mean Estimation via Sum of Squares

We study the problem of high-dimensional sparse mean estimation in the presence of an ε-fraction of adversarial outliers. Prior work obtained sample and computationally efficient algorithms for this task for identity-covariance subgaussian distributions. In this work, we develop the first efficient algorithms for robust sparse mean estimation without a priori knowledge of the covariance. For distributions on R with “certifiably bounded” t-th moments and sufficiently light tails, our algorithm achieves error of O(ε1−1/t) with sample complexity m = (k log(d))O(t)/ε2−2/t. For the special case of the Gaussian distribution, our algorithm achieves near-optimal error of Õ(ε) with sample complexity m = O(kpolylog(d))/ε. Our algorithms follow the Sum-of-Squares based, proofs to algorithms approach. We complement our upper bounds with Statistical Query and low-degree polynomial testing lower bounds, providing evidence that the sample-time-error tradeoffs achieved by our algorithms are qualitatively the best possible.
Light-driven increase in carbon yield is linked to maintenance in the proteorhodopsin-containing Photobacterium angustum S14

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.
Effect of spiritual intelligence training on nurses’ skills for communicating with patients – an experimental study

BACKGROUND: Since poor communication with the patient has a negative impact on the quality of nursing care, taking the necessary measures to strengthen the relationship with the patient seems necessary. This study was conducted to determine the effect of spiritual intelligence training on nurses’ skills for communicating with patients. MATERIALS AND METHODS: This experimental study with the control group and the pretest-posttest design was conducted on 70 nurses working in Imam Khomeini Hospital, Mahabad, in 2019. Randomized stratified sampling was used to recruit participants. Then, participants were randomly assigned to the two groups of control and intervention. The demographic information form and the patient-nurse communication skill questionnaire were used to collect the data. For the intervention group, 7 spiritual intelligence training sessions were held as a workshop in 2 months. Two weeks and a month after the intervention, both groups completed the questionnaires. Data were analyzed with the SPSS software version 17.0. RESULTS: The findings showed that the mean communication skill scores in the intervention group before training were 44.71 ± 7.62, which significantly increased to 66.22 ± 8.43 2 weeks after training. Bonferroni multiple comparisons showed the mean communication skill scores significantly increased before, 2 weeks later and in the follow-up phase in the intervention group (P < 0.001). CONCLUSION: Spiritual intelligence training is effective in improving the communication skills of nurses. It is recommended that the prepared content can be provided to in-service training units; consequently, nurses can improve their communication skills by individual and group learning.
Ex-military personnel’s experiences of loneliness and social isolation from discharge, through transition, to the present day

Objectives This study aimed to examine the unique factors of loneliness and social isolation within the ex-military population from discharge, through transition, to the present day. Design A qualitative, Phenomenological approach was adopted. Methods In-depth semi-structured interviews were carried out with 11 participants who had all served in the British Armed Forces and represented all three military services (Royal Navy; Army; Royal Air Force). Reflexive Thematic Analysis was used to analyse the data. Results Three themes were generated—a sense of loss; difficulty in connecting in civilian life; and seeking out familiarity. The findings of this study were examined through the lenses of the Social Needs Approach and the Cognitive Discrepancy Model. Conclusions Individuals developed close bonds in the military through meaningful and prolonged contact, reducing feelings of loneliness and social isolation during their time in service. The sense of belonging was key to social connection, but transition out of the military severed existing relationships, and a lack of belonging hindered the development of relationships within the civilian community. This study has implications for service provision relating to ex-military personnel and future service leavers.
Risk Perception in the COVID-19 pandemic; a health promotion approach

BACKGROUND: Many measures have been taken so far to minimize the outbreak of COVID-19, but it is still unclear to what extent people have understood the risk. Public participation plays a vital role in better and effective control of the coronavirus, and the importance of risk perception is effective in their preventive behavior. The aim of this study was to investigate the pandemic risk perception of coronavirus disease after began of pandemic in Iranian society. MATERIALS AND METHODS: This cross-sectional study was conducted in Iran in spring 2020. The data collection tool was a researcher-made questionnaire. The questions were extracted through interviews with experts and summarizing the opinions of public interviews, etc., The questionnaire was made available to the public through social media. The information was collected within 3 months. Quantitative data were reported as mean ± standard deviation and the qualitative data were reported as number and percent. Multiple linear regression and cross were also used to examine the demographic factors associated with risk perception. Data Analysis was performed using the SPSS version 21 statistical software. RESULTS: In this study, 402 individuals from 28 provinces (Azarbaijan Gharbi, Azarbaijan Sharghi, Alborz, Ardabil, Bushehr, Chaharmahal and Bakhtiari, Esfahan, Fars, Ghazvin, Gilan, Golestan, Hamedan, Hormozgan, Ilam, Kerman, Kermanshah, Khorasan Razavi, Khorasan Shomali, Khuzestan, Kohgiluyeh and Boyerahmad, Kurdistan, Lorestan, Mazandaran, Semnan, Sistan and Baluchestan, Tehran, Yazd, and Zanjan) of Iran participated. The risk perception score obtained from the sum of the scores of the questions was classified into quartiles. Accordingly, the risk perception score of (22.9) 92 people was very low, (26.6) 107 people low, (26.9) 108 people moderate, and (23.6) 95 people high. The results of multiple linear regression showed that the variables of gender (P = 0.008) and occupation (P = 0.013) had a significant relationship with risk perception. There was no significant relationship between risk perception and variables of age, marital status, and level of education (P > 0.05). CONCLUSION: The study showed that the risk perception of the people is more in categories of moderate to high. Assessing the risk perception of a pandemic can be helpful for preventive measurements and planning, and also, according to the results of the research, can be done appropriate educational interventions. Given that 47.5% of respondents were employees, of course, it should be noted that in sending a questionnaire virtually, there is usually a lot of loss and this is a limitation of the research. The results of this study can be useful in making prevention decisions and maintaining safety and health in the workplace.
Effect of Preexisting Asthma on the Risk of ICU Admission, Intubation, and Death from COVID-19: A Systematic Review and Meta-Analysis

Background The Centers for Disease Control and Prevention (CDC) identifies asthma as a comorbidity in COVID-19 that increases the risk of severity and death. However, research has shown that asthma is not associated with increased severity and death, thus making the consequences of asthma in COVID-19 unclear. Methods We searched the electronic databases PubMed, WHO COVID-19 database, and Taylor and Francis Online for studies that compared the medical outcomes of COVID-19 between patients with and without asthma, from the emergence of SARS-CoV-2 in December 2019 to the 3rd of September 2021, excluded duplicates, reviews, editorials, and case reports, and screened the titles, abstracts, and full texts. The quality of the included studies was assessed using the Newcastle–Ottawa Scale (NOS) for nonrandomized studies. Rates of intensive care unit (ICU) admission, intubation, and death among patients with and without asthma were compiled and meta-analysis was conducted using a random-effects model. Results Nineteen studies with a total of 289,449 participants met the inclusion criteria. COVID-19 patients with asthma had no significant association with increased risk of ICU admission, intubation, and death as compared with those without asthma ((odds ratio (OR) = 1.25, confidence interval (CI) = 0.90–1.74, I2 = 82%, X2 = 55.13, p < 0.01), (OR = 0.89, CI = 0.59–1.34, I2 = 91%, X2 = 110.82, p < 0.01), and (OR = 0.90, 95% CI = 0.63–1.27, I2 = 88%, X2 = 146.96, p < 0.01)), respectively. Conclusion Preexisting asthma did not significantly increase the risk of poorer prognosis and death from COVID-19.
Clinical outcome and safety of stem cell therapy for ischemic stroke: A systematic review and meta-analysis

Background: Several reports on stem cell administration have emerged proving it to be an ideal therapeutic approach for improving neurological functions in ischemic stroke patients. However, some studies also show disappointing results, with some reporting no statistically significant improvements among several different parameters. Several challenges also arise relating to safety and nonscientific aspects, such as ethics. Methods: We performed a systematic review and meta-analysis to evaluate the effect of stem cell therapy on the clinical outcomes of ischemic stroke patients. A systematic review and meta-analysis were performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. A thorough literature search was conducted on PubMed, Scopus, and Cochrane databases. Articles were selected systematically based on the PRISMA protocol and reviewed completely. A total of 19 publications pertaining to stem cell therapy on the ischemic route were included and reviewed. Efficacy outcomes were measured with the National Institutes of Health Stroke Scale, modified Rankin Scale, or Barthel Index. Results: The results of the meta-analysis indicate that the efficacy outcomes suggest favorable results after stem cell therapy, although not all study results are statistically significant. Stem cell therapy in stroke cases showed a better outcome than standard conservative therapy alone, although our analysis shows that many factors can influence this outcome, and significant effects can only be seen after several months. Conclusion: The results of this study show promising and satisfying efficacy and a relatively low rate of serious adverse events.
Language Assessment Literacy of Teachers

Language assessment literacy (LAL) is a significant component of language teachers’ expertise but is also a challenging task for most language teachers. To date, there have been relatively few studies examining the research on teachers’ LAL during these decades. To fill this void, this article reviews the conceptualizations of LAL and relevant empirical studies published from 1991 to 2021. It first analyzes various conceptualizations of LAL. Then in examining the empirical studies on teachers’ LAL, five major themes emerge: (i) teachers’ LAL levels; (ii) factors influencing LAL; (iii) language teachers’ assessment training needs; (iv) language assessment training courses; and (v) LAL development through reflection. Finally, future research directions on teachers’ LAL are discussed.
Diet drove brain and dental morphological coevolution in strepsirrhine primates

The evolution of the remarkably complex primate brain has been a topic of great interest for decades. Multiple factors have been proposed to explain the comparatively larger primate brain (relative to body mass), with recent studies indicating diet has the greatest explanatory power. Dietary specialisations also correlate with dental adaptations, providing a potential evolutionary link between brain and dental morphological evolution. However, unambiguous evidence of association between brain and dental phenotypes in primates remains elusive. Here we investigate the effect of diet on variation in primate brain and dental morphology and test whether the two anatomical systems coevolved. We focused on the primate suborder Strepsirrhini, a living primate group that occupies a very wide range of dietary niches. By making use of both geometric morphometrics and dental topographic analysis, we extend the study of brain-dental ecomorphological evolution beyond measures of size. After controlling for allometry and evolutionary relatedness, differences in brain and dental morphology were found between dietary groups, and brain and dental morphologies were found to covary. Historical trajectories of morphological diversification revealed a strong integration in the rates of brain and dental evolution and similarities in their modes of evolution. Combined, our results reveal an interplay between brain and dental ecomorphological adaptations throughout strepsirrhine evolution that can be linked to diet.
Preoperative Endoscopic Ultrasound Fine Needle Aspiration Versus Upfront Surgery in Resectable Pancreatic Cancer: A Systematic Review and Meta-analysis of Clinical Outcomes Including Survival and Risk of Tumor Recurrence

Abstract Background and Aim Endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) is the standard of care in advanced pancreatic cancer. Its role in resectable disease, however, is controversial. This meta-analysis aims to ascertain the clinical outcomes of patients with resectable pancreatic cancer undergoing preoperative EUS-FNA compared to those going directly to surgery. Methods A literature search was performed from 1996 to April 2019 using MEDLINE, EMBASE, and ISI Web of Knowledge for studies comparing preoperative EUS-FNA to EUS without FNA in resectable pancreatic cancer for clinical outcomes. The primary outcome is overall survival (OS). Secondary outcomes include cancer-free survival, tumor recurrence and peritoneal carcinomatosis, and post-FNA-pancreatitis rate. Results Six retrospective studies were included. Preoperative EUS-FNA had better OS than the non-FNA group (WMD, 4.40 months [0.02 to 8.78]). Cancer-free survival did not differ significantly between the two groups (WMD, 2.08 months [−2.22 to 6.38]). EUS with FNA was not associated with increased rates of tumor recurrence or peritoneal carcinomatosis. Conclusion Preoperative EUS-FNA in resectable pancreatic cancer may be associated with significantly greater OS when compared to the non-FNA group, with no significant difference in the rates of tumor recurrence or peritoneal seeding. Important limitations of our meta-analysis include the lack of prospective controlled data, which are unlikely to emerge given feasible constraints.
Designing incentive mechanism in contract farming considering reciprocity preference

Contract farming is a growing practice in agricultural economy. A well-designed crop-planting and buyout contract, offered by an enterprise, to a fraction of contract farmers brings benefit to farmers as well as to the enterprise itself. However, in the process of contract fulfillment, farmers possess private information about the degree of effort on fulfilling the contract of themselves. Thus, the more informed farmers may not work hard in the process of planting crops. This opportunistic behavior of farmers caused by asymmetric information has seriously affected the sustainability of contract farming. An enterprise with reciprocity preference tends to make a contract both improves farmers’ welfare and brings enough profit to sustain its own operations, while a farmer with reciprocity will work hard in return for the enterprise’s reward. In this paper, we develop a non-profit index principal-agent model between enterprises and farmers, assuming both have reciprocity preference, to investigate how to design an incentive mechanism in contract farming. We begin our analysis by establishing a non-profit index evaluation system to evaluate farmers’ effort degree in contract fulfillment. Then we solve principal-agent problem with the assumption that farmers’ expected certainty income premium (ECIP) is constant. We find that in the perfect Bayesian equilibrium, farmers with higher degree of reciprocity preference require less ECIP, and will improve efforts to complete contract tasks, even actively sacrifice their own interests to repay extra rewards from enterprises. Furthermore, we explore our model to the scenario in which farmers’ ECIP is a function of enterprise payment difference (EPD). We find that the higher the degree of reciprocity preference of farmers, the greater the probability of enterprises to increase income. Numerical simulations are conducted to verify the validity of the conclusions. Our study shows that the reciprocity preference behavior of enterprises and farmers improves the fulfillment rate of contract farming, which contributes to the realization of the incentive mechanism of contract farming.
Thirteen-year long-term follow-up in a rare case of anaplastic astroblastoma: What makes the difference?

Background: Astroblastomas are uncommon neuroepithelial tumors of the central nervous system with a distinct, yet, controversial radiological, histological, and molecular profile. Debatable differences between low- and high-grade astroblastoma have been reported in the medical literature; indeed, despite the increasing relevance of molecular genetic profiling in the realm of astroblastoma, its application is still in its early stages. As a result, the diagnostic criteria for astroblastoma remain undecided with yet no real consensus on the most ideal management. Case Description: This report describes a case of astroblastoma diagnosed 13 years ago in a young woman who despite six episodes of recurrence, transformation, and progression was able to retain a perfomace status of 0 by World Health Organization standard, throughout. Conclusion: This report discusses the clinical, radiological, histological features, and management of this rare tumor with an extraordinarily long survival, with an aim to strengthen the literature on management options. To the best of our knowledge, this is the longest surviving case of anaplastic astroblastoma reported in the available medical literature.
The impact of social media on academic performance and interpersonal relations among health sciences undergraduates

BACKGROUND: Social media has become a most inseparable part of young adults’ lives with the rapid development of information and communication technology. The study aimed to assess the use of social media and its association with academic performance, well-being, and interpersonal relation of the health sciences undergraduates. MATERIALS AND METHODS: A descriptive cross-sectional study was conducted among undergraduates in Faculty of Allied Health Sciences (n = 220), University of Sri Jayewardenepura, Sri Lanka. Data were collected using a pretested, self-administered questionnaire and analyzed using descriptive and inferential statistics. RESULTS: The response rate was 79.5%. All undergraduates (n = 175) had social media accounts, and WhatsApp was the most frequently used social media site (96.0%), followed by Facebook (70.9%), mainly for communicating (85.1%), entertainment (83.4%), and online learning (65.7%). Most undergraduates (72.0%) spent 2–5 h daily on social media sites and followed social media 1–10 times per day (54.9%). The majority of them wished to use social media for academic purposes (94.9%), and the most preferred site for academic work was WhatsApp (65.1%). Most undergraduates’ self-reported Grade Point Average (GPA) (46.3%) was <2.9. There was a statistically significant association between the mean GPA and frequencies of using social media (P = 0.02) (not daily [3.3 ± 0.3], 1–10 times a day [2.9 ± 0.4], and more than 10 times a day [3 ± 0.4]). Perceived social media addiction and duration of sleep (P = 0.02), activities of daily living (P = 0.004), and study time (P = 0.02) were found to be significantly associated. CONCLUSIONS: Despite the undergraduates’ willingness to use social media for academic purposes, the frequency of using social media had a significant influence on their academic performance. This highlights the importance of guidance on effective use of social media and social media addiction to improve undergraduates’ academic performance, well-being, and interpersonal relationships.
Assessment of Palliative Care Needs among People Living with HIV/ AIDS Attending Antiretroviral Therapy Outpatient Department in an Urban Slum of Mumbai: A Mixed Method Study

Objectives: According to WHO, Palliative care is an essential component of a comprehensive package of care for people living with HIV/AIDS. Lack of palliative care results in untreated symptoms that hamper an individual’s ability to perform daily activities. The study aimed to explore the perceived Palliative care needs of People Living With HIV/AIDS and the association between socio- demographic profile with Palliative care needs. Materials and Methods: It was a mixed method study conducted over 2 months in November and December 2020 at Link ART OPD of Urban Health Training Centre in Mumbai. Out of 120 registered patients,15 patients were selected for in-depth interview by purposive sampling. The remaining 105 patients were selected for quantitative part of the study by complete enumeration method. For Qualitative part, Thematic analysis of the transcripts was done. Data were coded using Microsoft word comment feature. Themes and categories were drawn from it. For Quantitative part, Data analysis was done using SPSS version 22. Chi- square test was applied to find out the association between socio- demographic profile & palliative care needs. P value < 0.05 was considered statistically significant. Results: The major themes identified were poor attitude towards the disease, lack of support and role of counselling. The common palliative care needs identified were need for financial assistance, family support and psychological support. Conclusions: Palliative care should be introduced early in the care process by a team of providers who is aware of the patient’s history and requirements.