bluuebunny/crossref_metadata_2025 huggingface dataset:
Macular edema after retinal vein occlusions. Macular morphometry and chorioretinal hemodynamics
Authors:   Khabarovsk Branch of the S.N. Fedorov NMRC “MNTK “Eye Microsurgery”, Khabarovsk, Russian Federation, Fil' A.A. , Sorokin E.L. ,   Khabarovsk Branch of the S.N. Fedorov NMRC “MNTK “Eye Microsurgery”, Khabarovsk, Russian Federation,   Far Eastern State Medical University, Khabarovsk, Russian Federation, Kolenko O.V. ,   Khabarovsk Branch of the S.N. Fedorov NMRC “MNTK “Eye Microsurgery”, Khabarovsk, Russian Federation,   Institute of Advanced Training of Healthcare Specialists, Khabarovsk, Russian Federation
Published: September 2021

This review article summarizes current data on the pathogenesis of macular edema after retinal vein occlusions (RVOs) and patterns of macular morphometry and chorioretinal hemodynamics. RVOs account for 60% of acute vascular eye diseases. The major cause of vision loss in RVOs is macular edema which results from subclinical inflammation characterized by leukostasis and enhanced expression of adhesion molecules and production of cytokines increasing retinal capillary permeability. The association between the severity of macular edema and vitreous levels of pro-inflammatory mediators (IL-1β, IL-6, TNF-α, MCP-1, and VEGF) is established. Cystic lesions and detachment of the neuroepithelium (75%) are typical for macular edema after RVOs. Impaired chorioretinal hemodynamics (as demonstrated by a significant reduction of vascular density in the superficial and deep vascular plexus, significant decrease in peak diastolic flow velocity, and increase in resistivity index in the ophthalmic artery and short posterior ciliary arteries) is also reported. The paper addresses etiological factors of RVOs and pathogenesis of macular edema, technical tools for vital assessment of the retina, and choroidal/retinal hemodynamics. This provides great opportunities for a complex in-depth study of the development and course of macular edema to identify potential predictors of its development and persistence. Keywords: retinal vein occlusions, macular edema, morphometry, chorioretinal hemodynamics. For citation: Fil' A.A., Sorokin E.L., Kolenko O.V. Macular edema after retinal vein occlusions. Macular morphometry and chorioretinal hemodynamics. Russian Journal of Clinical Ophthalmology. 2021;21(3):164–168 (in Russ.). DOI: 10.32364/2311-7729-2021-21-3- 164-168.
Research of heating the lining of high-temperature units in order to increase their residual resource
Authors:   Toraighyrov university, Nikiforov A.S. , Karmanov A.E. ,   Toraighyrov university, Prikhod’ko E.V. ,   Toraighyrov university, Kinzhibekova A.K. ,   Toraighyrov university, Zhumagulov M.G. ,   L.N. Gumilyov Eurasian National University
Published: September 2021

The article contains an analysis of the initial stage of the heating process of high-temperature units. The heating modes used at the enterprises lead to various difficulties: a delay in the heating process or heating at a high speed at which mechanical stresses arise and exceed the permissible values. The proposed graphical dependencies for heating allow us to heat up at the highest possible speeds, taking into account the time spent on drying. In this case, the ultimate strength of refractory materials is not exceeded, which leads to a significant reduction in the time for the heating process.
The Outcome of Treatment With Recombinant Tissue Plasminogen Activator in Acute Ischemic Stroke
Authors:   Neuroscience Research Center, Department of Neurology,Poursina Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran., Saberi Alia , Ghayegran Amirreza ,   Department of Neurology, Poursina Hospital, Guilan University of Medical Sciences, Rasht, Iran., Abbasalizade Mojtaba ,   Student Research Committee, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran., Ehtiatkar Zeinab ,   Department of Neurology, Poursina Hospital, Guilan University of Medical Sciences, Rasht, Iran., Ghorbani Shirkouhi Samaneh ,   Neuroscience Research Center, Poursina Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran., Shahshahani Parisa ,   Department of Neurology, Poursina Hospital, Guilan University of Medical Sciences, Rasht, Iran., Hatamian Hamidreza ,   Department of Neurology, Poursina Hospital, Guilan University of Medical Sciences, Rasht, Iran., Andalib Sasan ,   Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark.
Published: September 2021

Background: Thrombolytic therapy is the recommended treatment of acute ischemic stroke. It is crucial to evaluate the treatment results with recombinant Tissue Plasminogen Activator (r-TPA) in patients with acute stroke. Objectives: This study aimed to evaluate treatment outcomes with r-TPA in patients with acute stroke in a referral stroke center in Iran. Materials & Methods: In this retrospective study, 87 patients with symptoms of acute stroke were examined. They were referred to a stroke center in Gilan Province, Iran, from June 2016 to April 2020 and received r-TPA (0.9 mg/kg). Demographic information, the time interval between the onset of symptoms and r-TPA administration, complications, and National Institutes of Health Stroke Scale (NIHSS) upon arrival and discharge and death of patients were extracted from their hospital files. The paired t-test, independent t-test, and Pearson correlation test were used to compare variables using IBM SPSS for Windows version 20.0 (IBM Corp., Armonk, NY, USA). Results: The Mean±SD of NIHSS reduced from 14.7±6.4 to 8.9±7.6 (P<0.001). The most common complication was Intracerebral Hemorrhage (ICH) (12.6%). The hospital mortality rate was 23%. ICH occurred among 40% (n=8) of those who expired, and 4.47% (n=3) of them survived, and this difference was significant (P<0.001). Conclusion: The recovery with r-TPA administration in the stroke center was acceptable. Mortality and ICH occurrence rates were higher than other non-Iranian studies. It seems that we should change the case selection criteria and prescription dose to achieve better results of treatment with TPA.
The Relationship Between Serum Dehydroepiandrosterone Concentration and Memory Function in the Elderly
Authors:   Kavosh Cognitive Behavior Sciences and Addiction Research Center, Department of Psychiatry, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran., Abdollahi Elahe , Olia Golsa ,   Kavosh Cognitive Behavior Sciences and Addiction Research Center, Department of Psychiatry, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran., Eslamdoust-Siahestalkhi Fatemeh ,   Kavosh Cognitive Behavior Sciences and Addiction Research Center, Department of Psychiatry, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran., Soleimani Robabeh ,   Kavosh Cognitive Behavior Sciences and Addiction Research Center, Department of Psychiatry, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran.
Published: September 2021

Background: World population is rapidly aging, and the elderly are most at risk of cognitive impairment. Dehydroepiandrosterone (DHEA) and DHEA-Sulfate (DHEAS) have an essential effect on neuroprotection and might effectively improve cognition and memory. Objectives: This study aimed to investigate the relationship between the level of DHEA and memory function in the elderly. Materials & Methods: The present study was a cross-sectional analytical study, and the study population included the elderly (age 60 years and older) living in Rasht City, the north of Iran, in 2020. The participants completed a demographic questionnaire and Wechsler Memory Scale (WMS), and their serum DHEA levels were measured by the hormonal automation method. The data were analyzed by SPSS v. 23, using t-test, the one-way Analysis of Variance (ANOVA), Pearson and Spearman correlation coefficient. Results: The participants included 100 older people (57 females and 43 males) with a Mean±SD age of 67.38±5.39 years. There was no correlation between serum DHEA concentrations with a total score of the WMS (r=0.117, P=0.247). However, the correlation between the DHEA level and the scores of personal and current information and visual reproduction subscales were statistically significant (r=0.219, P=0.029; r=0.206, P=0.04). Conclusion: The study indicates that the total memory score was not associated with the level of serum DHEA.
Comparative Protective Effects of Viola Spathulata, Urtica Dioica, and Lamium Album on Endoplasmic Reticulum (ER) Stress in Rat Stroke Model
Authors:   Department of Microbiology, Faculty of Medicine, Guilan University of Medical Sciences, Rasht, Iran., Hedayati Ch Mojtaba , Abedinzade Mahmood ,   Department of Physiology, Faculty of Medicine, Guilan University of Medical Sciences, Rasht, Iran., Khanaki Korosh ,   Department of Clinical Biochemistry, Faculty of Paramedicine, Guilan University of Medical Sciences, Rasht, Iran., Khakpour Tleghani Behrooz ,   Cellular and Molecular Research Center, Faculty of Medicine, Guilan University of Medical Sciences, Rasht, Iran., Golshekan Mostafa ,   Medical Biotechnology Research Center, Faculty of Paramedicine, Guilan University of Medical Sciences, Rasht, Iran., Mohammadi Ekram ,   Department of Medical Physiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
Published: September 2021

Background: Pathological conditions, including ischemic stroke, are associated with severe Endoplasmic Reticulum (ER) stress that induces apoptosis and cell death. Herbal medicines are natural treatments with few side effects in such situations. Objectives: In the present study, we examined the probable neuroprotective effects of Viola spathulata, Lamium album, and Urtica dioica on splicing of ER stress mRNA gene marker (X-box Binding Protein-1 [XBP-1]) and Unfolded Protein Response (UPR) activation in the brain of the rat stroke model. Materials & Methods: Sixty male Wistar albino rats (weight: 220-250 g) were selected for this study and divided into two major groups. The first major group comprised the healthy animals that are subdivided into groups number 1 to 5. The second major group comprised the Middle Cerebral Artery Occlusion (MCAO) group subdivided into groups number 6-10. The reverse transcriptionpolymerase chain reaction was performed after pretreatment with different herbal extracts (5, 10 mg/kg), Viola spathulata, and 100 mg/ kg Urtica dioica and Lamium album). The results were analyzed by one-way analysis of variance in IBM SPSS v. 22. Results: MCAO-induced ischemia caused a marked increase in XBP-1 splicing in all rats of the MCAO group in comparison to the control groups (P<0.05), and pretreatment with 3 herbal extracts dramatically decreased target gene splicing in the MCAO studied groups (P<0.05). Conclusion: All three herbal extracts of U. dioica, L. album, and V. spathulata had the promising potential to use as a neuroprotective agent by reducing ER stress.
Success Rates and Complications of Ventriculoperitoneal and Ventriculoatrial Shunting: A Systematic Review
Authors:   Department of Neurosurgery, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran., Rezaee Hamid , Tavallaii Amin ,   Department of Neurosurgery, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran., Keykhosravi Ehsan ,   Department of Neurosurgery, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Published: September 2021

Background and Aim: The insertion of Ventriculoperitoneal (VP) or Ventriculoatrial (VA) shunt is the first line of treatment in patients with hydrocephalus and normal-pressure hydrocephalus. The provision of a safety profile for shunting in the treatment of hydrocephalus patients is very important. This study aimed to determine the success rates and complications of VP and VA shunting in patients with hydrocephalus. Methods and Materials/Patients: This systematic review investigated the complication rates of VP and VA shunting in managing patients with hydrocephalus. All the published studies were searched in three electronic databases of Web of Science, PubMed and Google Scholar from March 20 to April 10, 2020, using the keywords of “Ventriculoperitoneal” and “Ventriculoatrial” in combination with “Hydrocephalus”. Results: In total, nine articles met the eligibility criteria for being included in this review. Some studies showed a higher rate of shunt obstruction in patients undergoing VA shunting; however, other studies demonstrated no difference in terms of shunt obstruction. The rates of primary revision shunt were various within the ranges of 5.4%-48% and 9.1%-58% for VA and VP shunting, respectively. A higher rate of revision shunt was reported among the patients undergoing VP shunting, compared to that reported for VA shunting. The different mortality rates in various studies were estimated within the range of 0%-10% and at 13.9% for VA and VP shunting, respectively. Conclusion: In general, no difference was reported between VA and VP shunting regarding the rates of complications and mortality. Due to the ease of placement and revision, VP shunting could be considered the first-line treatment of hydrocephalus. However, this approach has been preferred in newborns, and there have been insufficient data on adults in this regard.
Estimation of Median Nerve Axonal Degeneration without Needle Electromyography
Authors:   Department of Neurology, Guilan Road Trauma Research Center, Guilan University of Medical Sciences, Rasht, Iran., Hosseininezhad Mozaffar , Ghayeghran Amir Reza ,   Department of Neurology, Guilan Road Trauma Research Center, Guilan University of Medical Sciences, Rasht, Iran., Nasiri Paria ,   Department of Neurology, Guilan Road Trauma Research Center, Guilan University of Medical Sciences, Rasht, Iran., Saadat Sajjad ,   Neuroscience Research Center, Guilan University of Medical Sciences, Rasht, Iran., Esmaili Katayoun ,   Department of Neurology, Guilan Road Trauma Research Center, Guilan University of Medical Sciences, Rasht, Iran., Homaei Rad Enayatollah ,   Research Assistant Professor of Health Economics, Guilan Road Trauma Research Center, Guilan University of Medical Sciences, Rasht, Iran., Gholipour Soleimani Zahra ,   Department of Nursing, Neuroscience Research Center, Guilan University of Medical Sciences, Rasht, Iran.
Published: September 2021

Background and Aim: The present study aimed to use the median nerve Compound Muscle Action Potential (CMAP) amplitude by stimulation at the palm instead of Abductor Pollicis Brevis (APB) needle Electromyography (EMG) for determining axonal loss in patients with Carpal Tunnel Syndrome (CTS). Methods and Materials/Patients: This study was performed on 180 patients with CTS referred to the Electrodiagnostic (EDX) Center, Poursina Hospital, Guilan Province, Iran, in 2018-19. In this study, the APB needle EMG diagnostic test was used as the gold standard, and median nerve CMAP amplitude with stimulation at the palm and wrist were used to compare the two nerve stimulation tests. Results: All of the cases with abnormal amplitude loss detected by median nerve stimulation at the palm also had an axonal loss in the needle EMG of APB. So this test could be a good indicator of axonal loss if there is an abnormality (sensitivity: 73%, specificity: 100%). The results with wrist stimulation were not as accurate as of the palm stimulation, and some cases with decreased CMAP amplitude of median nerve had normal needle EMG of APB muscle (sensitivity: 86.6%, specificity: 94.9%). Conclusion: In cases with CTS, the abnormally decreased amplitude of the median nerve detected by stimulation at the palm could be a good indicator of axonal loss.
Risk of Dependency Following Microsurgical Clipping in Good Grade Patients With Ruptured Anterior Circulation Aneurysms
Authors:   Punjab Institute of Neurosciences, Lahore, Pakistan., Ali Sundus , Sajjad Fauzia ,   Punjab Institute of Neurosciences, Lahore, Pakistan., Shabbir Asif ,   Punjab Institute of Neurosciences, Lahore, Pakistan., Azeemi Akmal ,   Punjab Institute of Neurosciences, Lahore, Pakistan.
Published: September 2021

Background and Aim: Most good grade (WFNS I and II) patients who undergo microsurgical clipping achieve a favorable outcome. However, some independent patients before surgery face unfavorable outcomes after the operation, signifying the impact of microsurgical clipping. This study aimed to identify the risk of developing dependency in patients without previous neurological deficits. Methods and Materials/Patients: We reviewed 50 consecutive good grade patients with ruptured anterior circulation aneurysms who underwent microsurgical clipping between May 2017 and May 2020 in the Department of Neurosurgery, Punjab Institute of Neurosciences, Lahore, Pakistan. The clinical outcome at discharge and three months follow-up was assessed using the Glasgow Outcome Scale (GOS). Results: In this study, seven patients (14%) became dependent (GOS II and III) following clipping. Of whom, five patients (10%) suffered surgical insult in the form of intraoperative rupture (4%), post-op infarct (4%), and direct brain damage (2%). Conclusion: Patients without neurologic deficit pre-operatively still suffer unfavorable outcomes mainly due to operative complications. Vascular injuries remain the main cause of morbidity-producing dependency. Therefore, all surgical techniques must minimize the risk to vessels, both during dissection and at clip placement.
The Role of Self-efficacy in the Relationship Between Classroom Climate and Students’ Educational Motivation
Authors:   Department of Psychology, Faculty of Sciences, Qaenat Branch, Islamic Azad University, Qaenat, Iran., Haji Vosoogh Najme Sadat , Tavakolizadeh Jahanshir ,   Department of Psychology, Faculty of Sciences, Qaenat Branch, Islamic Azad University, Qaenat, Iran., Pakdaman Majid ,   Department of Psychology, Faculty of Sciences, Qaenat Branch, Islamic Azad University, Qaenat, Iran.
Published: September 2021

Background: “Motivation” is an influential factor in the learning process, which its absence can prevent the learner from learning. Motivation affects both new learning and performance, skills, strategies, and pre-learned behaviors. “Educational motivation” is an essential aspect of education and the learning process. Educational motivation is generally referred to as the desires, needs, and factors that cause a person to have hope and resilience in educational environments for the flow of education and obtain the necessary results from it and transactional satisfaction. The purpose of this research was to determine the role of self-efficacy in the relationship between classroom climate and students’ educational motivation. Methods: This correlational research was done on 250 people selected by a simple multi-stage random sampling method from male and female high school students of Gonabad in 2019-2020. The measurement tools were Sinclair & McInroy Educational Motivation Scale (SIMS), Psychosocial Climate Inventory by Fraser, Giddings, and Mac Ruby (1955), The Morgan-Jinks Student Efficacy Scale (MJSES). Multiple regression was used to analyze the findings. Results: The results showed a significant relationship between classroom climate and educational motivation without the presence of self-efficacy (r=0.41), while there was no significant relationship between these two variables with the presence of self-efficacy (r=0.186). The findings also indicated that the classroom climate perception was a significant predictor of mediated academic motivation without self-efficiency (P=0.0346). Conclusion: There was a significant relationship between classroom climate and educational motivation without the presence of self-efficacy and classroom climate perception was not an effective predictor of educational motivation with the presence of self-efficacy. Hence, it is recommended to focus on factors predicting educational motivation in future studies.
The Relationship Between Mother-Child Interaction and Spiritual Well-being and Child Behavioral Disorders Through the Moderating Role of Mental Health in Mothers of Children With Hearing Impairment
Authors:   Department of Psychology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran., Pourseyyed Mohammad Maryam , Naderi Farah ,   Department of Psychology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran., Ehteshamzadeh Parvin ,   Department of Psychology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran., Asgari Parviz ,   Department of Psychology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
Published: September 2021

Background: Mother-child interaction and spiritual well-being can influence child behavioral disorders by affecting the mother’s mental health. The present study was done to investigate the relationship between mother-child interaction and spiritual well-being and child behavioral disorders with the mediation of mental health in mothers of children with hearing impairment. Methods: The descriptive correlational study used a path analysis. The statistical population included 1580 mothers of children with hearing impairment in Tehran in 2019. The sample size was determined using Morgan’s sample size table. The samples were selected based on stratified random sampling. To collect the required data, 310 questionnaires based on the research variables were provided to the participants and a total of 284 questionnaires were analyzed following the elimination of incomplete questionnaires. The research instruments included the Behavior Disorders Questionnaire, the Child-Parent Interaction Questionnaire, the Spiritual Well-being Questionnaire, and the Mental Health Questionnaire. The proposed model was evaluated using path analysis by AMOS v. 24 software. Results: The results showed that there was a significant relationship between spiritual well-being and child behavioral disorders (P<0.01), mental health and child behavioral disorders (P<0.01), child-mother interaction and mental health (P<0.01), and spiritual well-being and mental health (P<0.01), but there was no a significant relationship between child-mother interaction and child behavioral disorders (P>0.05). Moreover, indirect paths of child-mother interaction and child behavioral disorders with a mediating role of mental health (P<0.01) and spiritual well-being and child behavioral disorders with a mediating role of mental health were significant (P<0.05). Conclusion: According to the results of this study, the proposed model had a good fit, and is an important step in identifying the factors affecting the child behavioral disorders of children with hearing impairment.
Health Tourism System Development Using Entrepreneurial Management Approach in the COVID-19 Pandemic Era
Authors:   Department of Entrepreneurship Management, School of Management and Economics, Science and Research Branch, Islamic Azad University, Tehran, Iran., Dehghan Reza , Reshadatjoo Hamideh ,   Department of Entrepreneurship Management, School of Management and Economics, Science and Research Branch, Islamic Azad University, Tehran, Iran., Talebi Kambiz ,   Department of Business, School of Entrepreneurship, University of Tehran, Tehran, Iran., Dargahi Hossein ,   Department of Management Sciences and Health Economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Published: September 2021

Background: Health tourism uses a set of services that promote the health and spirit of individuals through medical care. Entrepreneurship is a process of exploring and using value creation opportunities in the economic, cultural, social, and health sectors. The present study was done to investigate the development of Iran’s health tourism system based on Stevenson’s entrepreneurial management model and determine entrepreneurial opportunities during the COVID-19 outbreak. Methods: This descriptive quantitative research was conducted by the field study (survey) method, using a standardized and localized questionnaire from Stevenson’s entrepreneurial management model to examine the views of health tourism specialists as the statistical population of the study. Using the snowball sampling method, 357 health tourism specialists, university professors, and health system managers participated in this study from 2018 to 2020. The collected data were recorded in PLS Smart software and their analysis was performed using descriptive and inferential statistics. Results: The findings indicated that all six components of Stevenson’s entrepreneurial management had a significant effect on the health tourism industry’s development. Strategic orientation and commitment to opportunities (path coefficient: 0.83) had the maximum effect, while the reward philosophy (path coefficient: 0.41) had the minimum effect on developing the health tourism industry. Conclusion: The average status of Stevenson’s entrepreneurial management dimensions in the health tourism industry was evaluated. Some of these factors (strategic orientation and commitment to opportunities) were obviously more favorable than others. Proper entrepreneurial strategies and the use of situations can provide good opportunities in health tourism.
The Role of Wearable Technology in the Diagnosis and Prevention of COVID-19
Authors:   Department of Industrial Management, Faculty of Humanities and Social Sciences, Yazd University, Yazd, Iran., Hosseini Bamakan Seyed Mojtaba , Rahbar Ehsan ,   Department of Industrial Management, Faculty of Humanities and Social Sciences, Yazd University, Yazd, Iran., Gheisari Mehdi ,   Department of Computer Science, Faculty of Engineering, Southern University of Technology and Science, Shenzhen, China.
Published: September 2021

N/A
ЗНИЖЕННЯ МЕТАЛОМІСТКОСТІ РОТАЦІЙНО-ПРОФІЛЬОВАНИХ КОЛІСНИХ ОБОДІВ РІЗНИХ ТИПІВ І ТОВЩИНИ
Authors: Фролов Е. , Коробко Б. , Ясько С. , Агарков В.
Published: September 2021

The research carried out made it possible to develop a new scheme for the process of rotary profiling of wheel rims, which allows to reduce the specific quantity of metal for parts. The essence of the solution lies in the fact that at the second step the jet central section is additionally made more powerful. This allows to change the nature of the deformation after the second step and to eliminate unnecessary thickening of the jet base. With an increase in the jet depth the edge sections are subjected to insignificant tensile stresses, while the stress-strain state of the part remains symmetric and constant at each point. The worked out sequence of calculating a new technological process allows calculating all technological parameters: width and length of a flat workpiece; maximum permissible stress in the workpiece material; a profiling route; as well as to identify deformations and stresses for edge elements and in hazardous areas. Further, taking into account the elastic deformations of the workpiece, the profile of the rollers was built, and then optimal deformation force along the transitions was calculated, then feed and the number of revolutions of the rollers were assigned. The new scheme made it possible to reduce metal consumption for parts and obtain a significant economic effect. Ovality of the part and multiple repeated deformation of the same sections of the workpiece are eliminated, and the degree of strengthening of the material is also reduced.
ПІДБІР КІЛЬКОСТІ ЗУБЦІВ ПЛАНЕТАРНИХ МЕХАНІЗМІВ СХЕМ AA, II, AI, IA, І ЗА ДОПОМОГОЮ ПРОГРАМНОГО ЗАБЕЗПЕЧЕННЯ
Authors: Данилов В. Н.
Published: September 2021

Most of the methods for selecting the numbers of teeth of planetary mechanisms are based on general equations that take into account three main conditions for their existence: 1) ensuring a given gear ratio, 2) the condition of alignment, 3) the condition of assembly. The rest of the conditions are not included in the system of equations to be solved and are checked additionally. However, this approach has a number of disadvantages associated with the discreteness of the general equations depending on several parameters. Therefore, a method is proposed for selecting the number of teeth using equations obtained only when taking into account two mandatory conditions for the existence of planetary mechanisms: 1) ensuring a given gear ratio, 2) the condition of alignment. Equations for fitting by this method are presented. The remaining conditions for the existence of planetary gears are checked separately and as a result, unsuitable solutions are excluded. This approach ensures the selection of all existing solutions in a given range of teeth numbers with a relatively small number of iterations, but it is rational only when used on a computer. In this regard, the corresponding software has been written - the Planmex.exe program. A description of this program is given, which allows you to select the number of teeth of the wheels of the proposed schemes of planetary gears with a whole and fractional gear ratio, different modules of wheels on a double satellite, a different number of satellites in a given range of numbers of teeth, depending on the selected driving link. Three variants of optimization of the obtained results of selection of the number of teeth are proposed: 1) minimum mass, 2) maximum speed, 3) maximum efficiency. Coefficients are introduced to compare the results within each optimization option and equations are proposed to determine them. An example of the selection of the number of teeth for different modules of gears on a double satellite of the planetary mechanism of the AI scheme by the proposed method using the Planmex.exe program is given. The optimization of the obtained results is made according to three criteria, taking into account the region of existence of the given scheme.
International and Domestic Graduate Student Satisfaction with Life
Authors: Suh Hanna , Hong Jihee , Rice Kenneth , Kelly Victoria
Published: September 2021

With increasing mental health problems witnessed among students, adequately addressing their well-being is becoming important on college campuses. This study compares international and domestic graduate students in the USA on domains that are relevant to both student groups (perfectionistic personality, academic stress) and how these factors combinedly predict satisfaction with life. With 531 international and 359 domestic graduate students, results found support for perfectionism and academic stress predicting life satisfaction in both groups with notable similarities and differences. For perfectionists in both student groups, the level of academic stress was an important factor that determines satisfaction with life. Interestingly, for international students only, a perfectionism dimension that has been traditionally considered adaptive (“Standards”) functioned in a maladaptive way. Findings from this study suggest that international and domestic students share similarities and differences that should be noted.
Stereotypes from the Inside
Authors: Ji Yadong
Published: September 2021

Communication scholars often examine immigrants’ ingroup favoritism to study their intergroup/intercultural communication. Less is known about how some immigrants exhibit outgroup favoritism for the host culture and how outgroup favoritism relates to their ingroup communication. Drawn upon literatures on outgroup favoritism, this study understands international/intercultural communication in a global system where some immigrants favor the hosting outgroup. The researcher investigates how Chinese international students experience their peers’ performance of outgroup favoritism 崇洋媚外 in the U.S. Through in-depth interviews (n = 15), this study identified how outgroup favoritism enacts negative ingroup stereotyping and ingroup distancing. Students with outgroup favoritism strategically negotiate for less ingroup membership and more outgroup affiliation, creating mutual exclusion among ingroup members. Discussion focuses on Chinese international students’ communication dilemma with outgroup-favoring ingroup members
Stress, Sleep and Performance in International and Domestic University Students
Authors: Tan Corinne Pei Yun , Greenwood Kenneth Mark
Published: September 2021

Stress and poor sleep quality are serious and common problems among university students that could have detrimental effects on their academic performance. International students may experience greater difficulty than domestic students because they also need to deal with the challenges associated with moving to a new culture. The present study aimed to investigate the relationship between stress (perceived and acculturative), sleep quality and academic performance by comparing them between international and domestic students. Perceived stress negatively correlated with sleep quality. However, no relationship was found between acculturative stress and sleep quality, between sleep quality and academic performance, and between stress (perceived and acculturative) and academic performance. Differences on perceived stress and sleep quality between international and domestic students were found. Perceived stress was found to be an important factor that requires the university to focus on effective stress management programs that could be useful for achieving better sleep quality.
Challenges of postgraduate international students in achieving academic success
Authors: Nachatar Singh Jasvir Kaur , Jack Gavin
Published: September 2021

Existing literature on international students predominately offers rich insights into international students’ adjustment experiences. Although previous researchers have acknowledged that academic and social adjustment experiences do impact academic success of students, limited research has been conducted on understanding the connections between adjustment-related challenges and academic success, particularly of postgraduate international students from Malaysia. This paper fills that gap in the literature, investigating key challenges impeding academic success of postgraduate international students, and thereby seeks to contribute to scholarship on international student development. It adopts a qualitative approach and is based on 55 semi-structured interviews, analysed thematically. The paper notably identifies two main challenges that hinder academic success of postgraduate international students. Firstly, academic challenges faced by postgraduate international students include issues with languages, lack of quality supervision and problems with research training. Secondly, social challenges such as lack of financial aid and barriers of friendships hinder students’ academic success.
Surviving Impostor Syndrome
Authors: Fitriyah Siti Masrifatul
Published: September 2021

Studying overseas may offer myriad riches of extraordinary experiences, especially due to the opportunities to immerse into a different academic culture. However, for some, the difference may be a hurdle that brings them into a mental roller coaster along their study journey. In this reflective paper, against the backdrop of my overseas studies experiences, I recount my bumpy journey of battling the so-called impostor syndrome which prevented me from being productive until I found the lights at the end of the tunnel and finally found a way to move on with my journey and earned my degree. Self-appreciation and community support seemed to be the most important influences that may have led me to be free from the syndrome and to finally achieve my main objectives.
Detecting jellyfish sign in a patient with systemic lupus erythematosus: An added value of the echocardiography
Authors: Menaisy Marha M.
Published: September 2021

Systemic lupus erythematosus (SLE) is an autoimmune disease that affects nearly every organ of the body. Cardiopulmonary manifestations are common in SLE, almost in the form of serositis, and include pleural and pericardial effusions. In these patients, echocardiography is an excellent non-invasive tool for detecting pericardial effusion and may provide a hint about pleural effusion. We report the case of a 20-year-old woman with SLE who had been experiencing dyspnea for 1 month and had no prior history of cardiovascular or pulmonary disease. A rheumatologist referred her to our echocardiography lab for a cardiac evaluation. In the echocardiographic examination, pleural mass depended from the left visceral pleura was discovered, surrounded by massive pleural effusion that induced left lung atelectasis (Jellyfish sign, and complete atelectasis of a lung lobe floats above a massive pleural effusion).
Neonatal infective endocarditis in a cardiac rhabdomyoma case: A rare presentation
Authors: Afrin Manifa , Ferdous Anima , Hossain Monir
Published: September 2021

Neonatal infective endocarditis (IE) is an exceedingly rare disease and usually not associated with cardiac rhabdomyomas or any underlying structural cardiac anomalies. Cardiac rhabdomyoma is also the most common benign primary cardiac tumor. The prognosis depends on the size, location of tumors, and outflow tract obstruction but can regress within 2 months of age and reduces the necessity of surgery. Due to the variable clinical features and course, we need to evaluate cardiac vegetation as soon as possible for better outcomes. A combination of these two conditions was not reported before. Here, we presented a case of IE with cardiac rhabdomyoma in a male baby which is first reported from Bangladesh previously.
COVER
Authors: COVER COVER
Published: September 2021

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PELATIHAN PENINGKATAN KOMPETENSI PRA UJI KOMPETENSI KEJURUAN (UKK) JURUSAN TEKNIK OTOMOTIF KEPADA SISWA SMK RIGOMASI BONTANG
Authors: Yani Ahmad , Anoi Yano Hurung , Triyatno Joko
Published: September 2021

Pengabdian Masyarakat merupakan salah satu dari Tridharma Perguruan Tinggi yang wajib dilakukan oleh dosen. Uji Kompetensi Keahlian (UKK) adalah bagian dari intervensi Pemerintah dalam menjamin mutu pendidikan pada satuan pendidikan Sekolah Menengah Kejuruan. Pelaksanaan UKK bertujuan untuk mengukur pencapaian kompetensi siswa pada level tertentu sesuai kompetensi Keahlian yang ditempuh selama masa pembelajaran di SMK. Tujuan kegiatan pengabdian masyarakat ini adalah untuk mendukung persiapan siswa SMK Rigomasi pada Ujian Kompetensi Keahlian teknik otomotif yang setiap tahun diadakan dan meningkatkan pencapaian kompetensi siswa SMK Rigomasi. Berdasarkan hasil kegiatan dan pembahasan bahwa terdapat peningkatan pengetahuan dan keahlian tune up dan perbaikan engine management system yang cukup signifikan setelah melewati pelatihan yang ditandai dengan hasil perbandingan antara nilai pretest dengan post test. Dari hasil pengolahan data dapat disimpulkan bahwa nilai ujian post test maksimum sebesar 8,97.
PERBAIKAN INSTALASI LISTRIK DAN PEMASANGAN SAKLAR OTOMATIS PHOTO CONTROL SENSOR LAMPU PENERANGAN DI MASJID RIYADUS SOLIHIN KAMPUNG KEBON DUREN RT 03 / RW 04 KELURAHAN KALIMULYA KECAMATAN CILODONG KOTA DEPOK
Authors: Yusyama Asep yana
Published: September 2021

The title of Community Service Activities is "Repair of Electrical Installations and Installation of Automatic Switches for Photo Control Light Sensors at the Riyadus Solihin Mosque, Kebon Duren Village RT 03 / RW 04 Kelurahan Kalimulya Cilodong District, Depok City." This activity is based on the aim of improving public facilities and infrastructure, in this case the Riyadus Solihin Mosque in the electricity sector to support religious activities carried out by the surrounding community. This activity will provide education to the surrounding community about the importance of maintaining the safety of lighting electrical installations and the use of energy-efficient lamps through repairing damaged electrical installations and installing energy-saving automatic switches. The expected results with the repair of electrical installations will contribute to the safety and tidiness of electrical installations with maintained continuity. In addition, this activity also carried out the installation of an automatic light switch that functions to turn on and turn off the lighting so that it will save electrical energy in an era where the economic needs of society are increasing today.
O COMÉRCIO NAS REFORMAS POMBALINAS DA INSTRUÇÃO
Authors: Souza Teles Thadeu Vinícius
Published: September 2021

Esse estudo tem por objetivo relacionar o comércio e as reformas empreendidas por Sebastião José de Carvalho e Melo, o Marquês de Pombal, na instrução. A partir de levantamento bibliográfico, fontes históricas, bibliográficas e documentais foi possível compor um breve panorama para facilitar a compreensão do lugar do comércio nas medidas pombalinas, especialmente nas Aulas de Comércio. Considerando a trajetória de Pombal e a formação do seu ideário, repleto da influência de pensadores ilustrados e estrangeirados como Luiz Antonio Verney, Antonio Ribeiro Sanches e John Locke, notou-se que na medida em que Pombal priorizou o comércio nas iniciativas da instrução, ele educou o trabalho nacional e fomentou uma das primeiras manifestações formais de instrução comercial na Europa.Palavras-chave: Comércio. Reformas pombalinas. Instrução comercial
A APLICAÇÃO DOS PADRÕES DE ENSINO PROPOSTOS PELO MARQUÊS DE POMBAL NA CAPITANIA DE SÃO PAULO
Authors: Munhoz Renata Ferreira , Costa Renata Ferreira
Published: September 2021

No século XVIII, diversos setores da sociedade europeia passaram por importantes mudanças, motivadas principalmente pelas ideias iluministas que afiguravam no cenário de então. O impulsionador dessas ideias em Portugal foi Sebastião José de Carvalho e Mello, o Marquês de Pombal (1750-1777), secretário de Estado dos Negócios do Reino, que promoveu uma série de reformas sociais e econômicas na nação portuguesa e suas colônias, em especial no campo educacional, a exemplo do incentivo à educação pública e laica. Este artigo insere-se nesse contexto setecentista racionalista, para compreender melhor a repercussão das medidas de reestruturação educacional propostas por Pombal no Brasil, particularmente na Capitania de São Paulo. Essa reforma foi implementada pelo governador e capitão general Morgado de Mateus, homem de elevada cultura, que, dentre tantas preocupações político-administrativas, dedicou-se de maneira bastante efusiva e peculiar a fomentar a educação em São Paulo, no que diz respeito, especialmente, à arte de “debuxar”.Palavras-chave: Educação. Marquês de Pombal. Capitania de São Paulo
ENTRE A BIBLIOTECA E A CLÍNICA
Authors: Donizeti Mingotti Rodrigo
Published: September 2021

A literatura enquanto monumento capaz de abarcar as mais diversas ciências se apropria de temas e práticas sociais inerentes à ordem do real para sua constituição (BARTHES, 2013). Nesse sentido, as patologias que acometem o sujeito constituem um campo fértil de atuação para as narrativas literárias, de modo a explorá-las e investigar suas acepções no âmbito social, no espaço-tempo recortados. Assim, a vertente que mais se desponta a abordar tais moléstias é a do Naturalismo, marcada particularmente pelo cientificismo e pelo senso do real. Logo, a investigação feita neste trabalho permeia as manifestações e teorias no que se referem ao alcoolismo, à loucura, ao tratamento de reclusão e às demais doenças derivadas do excesso alcoólico. A partir de aportes teóricos como de Émile Zola, Michel Foucault e Fernando Santos, que tratam respectivamente do romance experimental, da loucura e do alcoolismo, analisa-se aqui as patologias exploradas nos romances naturalistas L’Assommoir (1877) e Alma em delírio (1909), de modo a investigar as teorias científicas em torno dessas e, por fim, averiguar o papel da literatura enquanto mediadora do diálogo existente entre os discursos da ciência e do corpo social.Palavras-chaves: Literatura. História da Saúde. Psiquiatria
ESTRATÉGIA DE FAMÍLIA
Authors: Afonso Vieira Chagas Gabriel
Published: September 2021

Abordar a relação das pesquisas médico-científicas com o comportamento da sociedade nunca foi tema mais atual. O presente artigo debruça sobre a influência que o discurso médico-científico exerceu sobre as decisões matrimoniais de um grupo familiar, os Ferreira da Fonseca/ Armond, em Minas Gerais, a partir de fins do século XIX, o que permite debater, na larga escala, o abandono da estratégia de casamentos consanguíneos em prol de casamentos extrafamiliares. Sob o impacto dos primeiros estudos de genética, a estratégia tinha a intenção de prevenir, ao longo das gerações, que seus membros herdassem doenças geneticamente potencializadas pelo casamento consanguíneo dosprogenitores. A relação entre sociedade e ciência em momento tão contemporâneo (2020) é um dos resultados da construção dessa relação ao longo de um século e meio e a mudança nas práticas sociais de casamento, resultantes dos enunciados emanados pelas pesquisas médico-científicas no campo da Genético, é campo preferencial para se analisar o lugar do discurso médico no engendramento dos comportamentos sociais, uma vez que as relações conjugais se situam na intimidade do lar e é necessário a introjeção individual desse discurso para que a sociedade modele coletivamente seu comportamento segundo as prescrições médico-científicos.Palavras-chave: Casamentos Consanguíneos. Genética. História da Medicina
GRÉCIA E MESOPOTÂMIA
Authors: Lins Brandão Jacyntho
Published: September 2021

Este artigo compara os dados mais relevantes das concepções sobre a continuidade da existência após a morte entre mesopotâmios e gregos, da perspectiva dasrelações na zona de convergência cultural do Oriente Próximo. São examinadas as concepções sobre o lugar dos mortos, com destaque para a presença nele de um rio e, consequentemente, de um barqueiro.Palavras-chave: Escatologias mesopotâmicas; Escatologias gregas; Estudos comparados
O JOGO ELETRÔNICO SOMA
Authors: Maitê Fullas Aguiar Iris
Published: September 2021

O presente artigo tem como objetivo apresentar uma possível análise interpretativa da jornada realizada pelo protagonista do jogo eletrônico Soma (2015) como uma Katábasis. Com base na definição de Katábasis apresentada por Bernabé (2015), são apontados os elementos basilares que possibilitam classificar tal jornada como uma viagem ao submundo. Além disso, o artigo busca assinalar como a definição de Inferno ou mundo dos mortos sofreu modificações ao longo dos tempos, desde os textos considerados clássicos até as configurações de Inferno apresentadas em diferentes mídias, como o cinema, HQs e jogos eletrônicos. Finalmente, o artigo tem intenção de fomentar uma breve reflexão acerca do modo como alguns conceitos literários podem estabelecer um diálogo com diversas expressões artísticas, colaborando assim com a perpetuação de tais conceitos e proporcionando diferentes experiências narrativas.Palavras-chave: katábasis. Jogo eletrônico. Inferno
Análise da ocorrência de patologias nos pavimentos de rodovias em travessia urbana em Gurupi – TO
Authors: Mariano Marina Reis , Adorno Mirielli Sousa , Fonseca Luiz Felipe da Silva da
Published: September 2021

O presente artigo tem como objetivo evidenciar as patologias existentes nos pavimentos das ruas da cidade de Gurupi – TO, bem como a sugestão de soluções para estes problemas. Dentre os pavimentos a serem analisados, destacou-se a Avenida Goiás, que é o trecho urbano da BR-242 que atravessa o município, que apresenta várias patologias pelo grande movimento do centro comercial e pelo tráfego de veículos pesados.