Physical activity and nutrition guidelines to help with the fight against COVID-19     

Kayvan Khoramipour  Aref Basereh  Amirhoseein Ahmadi Hekmatikar  Lindy Castell  Ruheea Taskin Ruhee 《Journal of sports sciences》2021,39(1):101-107

ABSTRACT

As the world is witnessing the epidemic of coronavirus disease 2019, emerging genetics and clinical pieces of evidence suggest a similar immunopathology to those of severe acute respiratory syndrome and Middle East respiratory syndrome. Staying at home to prevent the spread of the virus and consequently being largely inactive is associated with unintended consequences. These can actually enhance the infection risk and exacerbate poor health conditions including impaired immune function. Physical activity is a feasible way of improving health, particularly physical and mental health in a time of social isolation. However, people with certain health conditions in these circumstances may need a special physical activity programme in addition to any exercise they may already be performing via online programmes. This review aims to provide practical guidelines during the COVID-19 quarantine period. We suggest performing aerobic, resistance training, respiratory muscle training and yoga in the healthy, and in those with upper respiratory tract illness, patients with lower respiratory tract illness should be restricted to respiratory muscle training and yoga. In addition, vitamins D and C, omega-3 fatty acids, and regular consumption of fruit and vegetables might be considered as nutritional aids to support the immune system in those affected by COVID-19.  相似文献   

Writer identification approach based on bag of words with OBI features     

Amal Durou  Ibrahim Aref  Somaya Al-Maadeed  Ahmed Bouridane  Elhadj Benkhelifa 《Information processing & management》2019,56(2):354-366

Handwriter identification aims to simplify the task of forensic experts by providing them with semi-automated tools in order to enable them to narrow down the search to determine the final identification of an unknown handwritten sample. An identification algorithm aims to produce a list of predicted writers of the unknown handwritten sample ranked in terms of confidence measure metrics for use by the forensic expert will make the final decision.Most existing handwriter identification systems use either statistical or model-based approaches. To further improve the performances this paper proposes to deploy a combination of both approaches using Oriented Basic Image features and the concept of graphemes codebook. To reduce the resulting high dimensionality of the feature vector a Kernel Principal Component Analysis has been used. To gauge the effectiveness of the proposed method a performance analysis, using IAM dataset for English handwriting and ICFHR 2012 dataset for Arabic handwriting, has been carried out. The results obtained achieved an accuracy of 96% thus demonstrating its superiority when compared against similar techniques.  相似文献   

The problems associated with the evaluation of world-class competitiveness of Russia’s science, as illustrated by clinical medicine     

V. I. Starodubov  N. G. Kurakova  L. A. Tsvetkova  P. G. Aref’ev  A. F. Kurakov 《Scientific and Technical Information Processing》2012,39(3):139-152

The main vectors for reforming Russia??s scientific-technological and innovative spheres, which are reflected in program documents that were adopted in late 2011 and early 2012, are discussed in the article. The authors propose to formalize the concepts that were used in these documents, such as world-class research competence and world-leading science and technology sectors. Using the Field Normalized Citation Score (NCSf) as a bibliometric indicator for the analysis of different research areas of Russia??s clinical medicine, the authors show the degree of variance between individual research areas within the same national subject field in terms of their correspondence to world-class excellence. The authors also emphasize the necessity of developing Russia??s national methodology for auditing Russian science, which will take its Russian-language segment into account where the world??s recognized methodologies are not always adequately applicable.  相似文献   

The scope of sexual, physical, and psychological abuse in a Bedouin-Arab community of female adolescents: The interplay of racism, urbanization, polygamy, family honor, and the social marginalization of women     

Elbedour S  Abu-Bader S  Onwuegbuzie AJ  Abu-Rabia A  El-Aassam S 《Child abuse & neglect》2006,30(3):215-229

OBJECTIVES: This is an exploratory study of the abuse-especially sexual-of female adolescents in a conservative and traditional Bedouin-Arab community in southern Israel. The objectives were (1) to examine the rate of sexual abuse, (2) to examine the rate of physical and psychological abuse, and (3) to develop regression models to predict these forms of abuse. METHODS: : A self-administered survey that measured demographic characteristics and psychological abuse was distributed to 217 female high-school students (aged 14-18 years). Sexual and physical abuse were measured via the Finkelhor's scale [Finkelhor, D. (1979). Sexually victimized children. New York: Free Press]. RESULTS: Sixty-nine percent of the participants (n=149) reported no sexual abuse experiences, 16% reported one or two experiences, 11% reported three or four, and 4% reported more than four. Most participants indicated that they had been physically abused at least once by their father (37.1%), mother (43.7%), or siblings (44%) during the previous month. More than 50% of the participants reported being psychologically abused by members of their immediate families. Mother's age and closeness to mother significantly predicted physical abuse, and marital satisfaction and mother's age significantly predicted psychological abuse. CONCLUSION: This study addresses a topic that has never before been fully investigated--the maltreatment of females in a conservative, tribal Arab community. Although this was an exploratory study, the results attest that female abuse is a serious social problem in this community, and that the rate of abuse exceeds that of other Palestinian groups. These findings demonstrate an immediate need for professional intervention and prevention to address this problem.  相似文献