scholarly journals The study of reactive and active modes of educational communication in the process of solving educational tasks by students in a virtual reality environment

2021 ◽  
Vol 54 (6) ◽  
pp. 473-486
Author(s):  
Olga P. Zhigalova ◽  
◽  
Tatiana A. Gavrilova ◽  
Victoria A. Baranova ◽  
Tatiana V. Fisun ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Educational Communication ◽  
Training System ◽  
Virtual Reality Environment ◽  
Chi Square ◽  
Dominant Type ◽  
Hand Eye Coordination ◽  
Chi Square Test ◽  
Active Communication ◽  
Student’S T

Introduction. The introduction of virtual technologies into the vocational training system makes it urgent to solve the task of adjusting communication in a situation where the student is in a virtual reality environment, while the teacher is in the real world. The research purpose is to study the role of two types of educational communication (reactive and active ones) with a student solving an educational task in a virtual reality environment, taking into account the gaming experience and the dominant type of student's perception. Materials and methods. During the laboratory experiment with the use of virtual reality headsets, the skill of hand-eye coordination was worked out on a sample of undergraduate teacher-training students (N=36). The author's questionnaire was used to assess the gaming experience, the dominant type of student's perception was assessed using the VARK Questionnaire (Version 7.8) by N. Fleming and S. Mills. The reliability of the data obtained was assessed using the chi-square test and the Student's t-test. Research results. There are no statistically significant differences between the groups of reactive and active communication in all indicators, with the exception of the experience of getting acquainted with virtual reality. The number of questions regarding the methods and sequence of performing game actions in the reactive group was the greatest (2.28), the same indicator in the group with active communication was insignificant (0.40). In the group with reactive communication, the subjects asked twice as many questions as in the group with active communication (4.78 and 2.44, respectively). Conclusions. The results confirm the hypothesis that the reactive and active modes of educational communication play different roles in the interaction between the teacher and the student. The dominant type of student's perception does not affect the process of organizing educational communication in a virtual reality environment. It is useful to take into account the results obtained at the stage of support of students' educational activities in a virtual reality environment in the context of providing active and reactive assistance by the teacher.

scholarly journals A Randomized, Controlled, Parallel-Group, Trial on the Effects of Melatonin on Fatigue Associated with Breast Cancer and Its Adjuvant Treatments

2021 ◽  
Vol 20 ◽  
pp. 153473542098834
Author(s):  
Abdolazim Sedighi Pashaki ◽  
Kamal Mohammadian ◽  
Saeid Afshar ◽  
Mohammad Hadi Gholami ◽  
Abbas Moradi ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Adjuvant Chemotherapy ◽  
Intervention Group ◽  
Chi Square ◽  
Significance Level ◽  
Severe Fatigue ◽  
Before And After ◽  
Brief Fatigue Inventory ◽  
Chi Square Test ◽  
Student’S T

Objective: Fatigue associated with malignant conditions and their treatments is a disabling condition. This trial assessed the anti-fatigue effects of melatonin coadministration during adjuvant treatment of patients with the breast cancer. Material and Methods: Patients with breast cancer were randomly assigned to receive melatonin or placebo during adjuvant chemotherapy and radiotherapy. Thirty-seven patients were randomly enrolled in each group. The mean ages of patients in the intervention and control groups were 50.47 ± 10.79 and 46.05 ± 10.55 years, respectively ( P = .223). The intervention group received oral melatonin (18 mg/day) from 1 week before until 1 month after the adjuvant radiotherapy. The level of fatigue was assessed before and after intervention using Brief Fatigue Inventory (BFI) in both groups. To analyze data, the Student’s t-test and the Chi-square test were used at a significance level of P ≤ .05. Results: The BFI score was similar before the intervention in both groups, however, after the intervention, it was significantly lower in the melatonin group ( P < .001). Moreover, the frequency of severe fatigue in the melatonin group was significantly lower than in the placebo group after intervention (42.1% vs 83.3%, P < .001). Conclusion: Coadministration of melatonin during adjuvant chemotherapy and radiotherapy of women with breast cancer decreased the levels of fatigue associated with the malignant condition and its treatments.

scholarly journals Behaviour and Anxiety Management of Paediatric Dental Patients through Virtual Reality: A Randomised Clinical Trial

2021 ◽  
Vol 10 (14) ◽  
pp. 3019
Author(s):  
Cristina Gómez-Polo ◽  
Ana-Aida Vilches ◽  
David Ribas ◽  
Antonio Castaño-Séiquer ◽  
Javier Montero
Keyword(s):  
Virtual Reality ◽  
Dental Treatment ◽  
Randomised Clinical Trial ◽  
Control Group ◽  
Chi Square ◽  
Anxiety Management ◽  
Dental Patients ◽  
Paediatric Patients ◽  
Chi Square Test ◽  
Scale Test

Clinicians should appreciate the effectiveness of virtual reality (VR) headsets for managing both the anxiety and the behaviour of non-cooperative paediatric patients who require treatment over several dental appointments. The aim of this study was to assess the effectiveness of using a VR headset as a distraction for managing the anxiety and behaviour of paediatric patients during their dental treatment. Eighty patients, aged between five and ten years old and who required dental treatment over three or more appointments, were randomly allocated into two groups. One group used a VR headset during all their appointments, and the other one did not use any distraction technique. The patients were asked to take a Facial Image Scale Test during their first and last appointments to assess their level of anxiety. Additionally, the dentist completed the Frankl Test to quantify the child’s behaviour at the beginning and the end of their treatment. The results obtained, both from the group using the VR headset and from the control group, were compared using the chi-square test. The use of a VR headset during dental treatment significantly reduced anxiety (95% of the children were happy) and improved behaviour (100% positive behaviour) as compared with the control group (40% and 57.5%, respectively). A VR headset can effectively distract a paediatric patient, helping to reduce anxiety and manage behaviour during dental treatment

scholarly journals Frequency of dementia among elderly admitted to a Geriatrics Inpatients Sector of a Brazilian public hospital

2018 ◽  
Vol 12 (1) ◽  
pp. 35-39 ◽  
Author(s):  
Rafael Thomazi ◽  
Liciana Vaz de Arruda Silveira ◽  
Paulo José Fortes Villas Boas ◽  
Alessandro Ferrari Jacinto
Keyword(s):  
Univariate Analysis ◽  
The Elderly ◽  
Sociodemographic Factors ◽  
University Hospital ◽  
Chi Square ◽  
Diagnosis Of Dementia ◽  
Elderly Inpatients ◽  
Chi Square Test ◽  
Student’S T ◽  
Clinical Conditions

ABSTRACT Patients with dementia are commonly admitted to inpatient sectors. The aim of this study was to describe the frequency of dementia among elderly inpatients admitted to the Geriatrics Sector of a Brazilian Tertiary University Hospital, and to identify associations between dementia and clinical and sociodemographic factors. Methods: All patients admitted to the Geriatrics Sector of a public Brazilian university-hospital from March 1st 2014 to January 31st 2015 were assessed by geriatricians. The patients were divided into groups "with or without diagnosis of dementia". Univariate analysis was performed between these two groups using the Chi-Square Test, Student's t-test or the Mann-Whitney Test. Results: One hundred and three elderly inpatients, with a mean age of 82 (±7.9) years, were assessed. Overall, 74.7% had low educational level (<4 years), 66% used polypharmacy, 57.2% developed delirium during hospitalization and 59% were totally dependent for basic activities of daily living. The diagnosis of dementia was observed in 59 (57%) subjects. Conclusion: The frequency of dementia was high among the elderly inpatients evaluated. The association between dementia and certain clinical conditions, such as incontinence, delirium and use of psychoactive drugs, was in line with the medical literature.

scholarly journals Effect of ondansetron on spinal induced hypotension in caesarean deliveries

2020 ◽  
Vol 8 (4) ◽  
pp. 193-199
Author(s):  
Pujan Balla ◽  
Anil Shrestha ◽  
Ninadini Shrestha ◽  
Navindra Bista ◽  
Moda Nath Marhatta
Keyword(s):  
Spinal Anesthesia ◽  
Elective Caesarean Section ◽  
P Value ◽  
Chi Square ◽  
Induced Hypotension ◽  
Intergroup Comparison ◽  
Chi Square Test ◽  
The Mean ◽  
Student’S T ◽  
Student’S T Test

Background: Spinal anesthesia is the preferred technique of anesthesia employed for caesarean sections. However, it is very often complicated by hypotension. Different drugs and techniques have been used to prevent the hypotension induced by spinal anesthesia. In this study, the effect of ondansetron on the prevention of hypotension after spinal anesthesia was evaluated. Objectives: To determine the effect of prophylactic ondansetron on prevention of spinal induced hypotension in elective caesarean section. Methodology: Eighty-six parturients planned for elective caesarean deliveries were randomized into two groups of 43 each. Group O received Ondansetron 4 mg (4 ml) and Group S received Normal Saline (4 ml) intravenously 10 minutes prior to spinal anesthesia. Blood pressure, heart rate, phenylephrine requirements, occurrence of nausea and vomiting and APGAR scores of neonates were compared between the groups. Hemodynamic data was analyzed using Student’s t-test for intergroup comparison and ANOVA was used for intragroup comparison. Categorical data was analyzed using Pearson Chi-Square test. For all determinants, p-value <0.05 was considered significant. Results: Occurrence of hypotension in Group O (20.9 %) was significantly lower than in Group S (72.1%) (p < 0.05). The mean arterial pressure was significantly higher in Group O at 2, 6, 8, 12 and 14 minutes (p < 0.05). The use of phenylephrine (37.21 mcg vs. 146.51 mcg, p < 0.05) and occurrence of nausea (11.6%, vs. 41.9% p < 0.002) was significantly lower in ondansetron group. Conclusion: Ondansetron is effective in preventing spinal induced hypotension in elective caesarean sections.

scholarly journals Fishery regulamentation or ethnoknowledge? The dilemma of the management of the mapará fisheries on the lower Tocantins river in northern Brazil

2021 ◽  
Vol 10 (11) ◽  
pp. e131101118963
Author(s):  
Esther Mirian Cardoso ◽  
Paulo Allison Costa da Mata ◽  
Matheus dos Santos Souza ◽  
Maria Clara Pinheiro de Souza ◽  
Victoria Isaac
Keyword(s):  
Socioeconomic Development ◽  
Economic Importance ◽  
Chi Square ◽  
Great Economic Importance ◽  
Chi Square Test ◽  
Northern Brazil ◽  
The Mean ◽  
Tocantins River ◽  
Student’S T ◽  
Student’S T Test

The fishery of mapará (Hypophthalmus marginatus) is of great economic importance in the Amazon region. Despite this, it is observed that the current norms of management disagree with the ethnoknowledge of fishermen of the Tocantins river. Therefore, there are many seizures and fines in the Tocantins Low region. This work appeared as a demand of the fishermen of the region and had as purpose to test the pertinence of the fishing legislation on the capture of the species and to provide subsidies for the adaptation of the norms to the local reality. For this, a mapará fishery was taken on the Pindobal Grande river, in the municipality of Igarapé-Miri, in the state of Pará. A sample of the captured individuals was collected, and identification, sexing and biometry were done. Fishing was described, and the sex ratio tested with the Chi-Square test and the mean length differences between the sexes with the Student's t-test. The results were compared with current legislation and literature data. The captured mapará individuals were mostly above 30 cm, as determined by legislation. It is concluded that, despite using a network that is prohibited, the capture of the species in the region acts selectively, due to the ethno-cognition and the fisherman's action ("taleiro"). Therefore, it is necessary that the legislation be revised, seeking the reconciliation between the conservation of ecosystems, the traditional knowledge and the socioeconomic development of the region.

scholarly journals Sports potential modeling of young basketball players: a preliminary analysis

2019 ◽  
Vol 21 ◽  
Author(s):  
Dilson Borges Ribeiro Junior ◽  
Jeferson Macedo Vianna ◽  
André de Assis Lauria ◽  
Emerson Filipino Coelho ◽  
Francisco Zacaron Werneck
Keyword(s):  
Adult Height ◽  
High Potential ◽  
Basketball Players ◽  
Chi Square ◽  
Chi Square Test ◽  
Student’S T ◽  
The Relationship ◽  
Student’S T Test ◽  
Adult Stature

Abstract The aims of this study were: 1) to evaluate the sports potential of young basketball players; 2) to identify variables that discriminate sports potential assessed by coaches; 3) to verifythe relationship between classification of the multidimensional profile of athletes and classification of the sports potential by coaches. Sixty-two young basketball players aged 15.6±1.1 years from U-15 (n = 24) and U-17 (n = 38) categories participated in the study. A test battery was applied to evaluate sports potential indicators: 1) anthropometric; 2) physicomotor; 3) psychological;4) skills;5) socio-environmental;6) maturational and 7) sports potential.Clusteranalysis was performed in three groups: high, medium and low potential. Student’s t-test was used for the comparison between athletes evaluated by the coach as excellent and the others and the Chi-Square test to verify the relationship between sports potential classifications. It was observed that in the high-potential group, athletes were chronologically older, with higher % predicted adult height (PMS), competitive and determined sports orientation, higher body size, lower skinfold summation, and greater physicomotor performance. In comparison with other athletes, high-potential basketball players presented higher stature, wider wingspan,longer limb length, greater predicted adult stature and higher Z score of the % PMS. It could be concluded that the multidimensional approach was useful for the evaluation of the sports potential of young basketball players, requiring the use of multidimensional variables, in addition to coaches’ opinion regarding the potential of their athletes.

Single Level ACCF Combining Single Level Stand-alone ACDF in Treating Cervical Spondylotic Myelopathy

2020 ◽  
Author(s):  
Zhichao Zhang ◽  
Jingxuan Chen ◽  
Wei Shi ◽  
Shengyuan Zhou ◽  
Xiongsheng Chen ◽  
...  
Keyword(s):  
Blood Loss ◽  
Intervertebral Disc Herniation ◽  
Intraoperative Blood Loss ◽  
Postoperative Dysphagia ◽  
Chi Square ◽  
Disc Space ◽  
Single Level ◽  
Chi Square Test ◽  
Vas Scores ◽  
Student’S T

Abstract Objective Single level ACCF combining single level ACDF (AcA) is an ideal way to treat CSM with multiple consecutive cervical intervertebral disc herniation alongside with severe bony narrowing of the spinal canal in between. AcA with the stand-alone technics on the ACDF level and a shorter titanium plate that only covers the ACCF levels (AcAsa) may possess potential advantages than conventional AcA. We performed a retrospective study to evaluate the feasibility, safety and effectiveness of AcAsa procedure. Methods 379 patients with CSM who had conventional AcA or AcAsa were retrospectively reviewed. Related patients factors, disease factors and treatment factors were acquired and subjected into student’s t test, chi-square test and survive analyses. Results Preoperative and postoperative JOA Scores in AcAsa: p<0.001. Preoperative and postoperative VAS Scores in AcAsa: p<0.001. 12months improvement of JOA Score between preoperative VAS Score≥2 and <2 in AcAsa: p=0.002. The amount of intraoperative blood loss between AcAsa and conventional AcA: p=0.011. Incidence of postoperative dysphagia between AcAsa and conventional AcA: p=0.038. Conclusion AcAsa significantly improve patients’ JOA Scores and reduce VAS Scores. Compared with conventional AcA, AcAsa leads to smaller amount of intraoperative blood loss and lower incidence of postoperative dysphagia. The alleviations of neurological symptoms, cervical motions and disc space heights at the ACDF levels are similar between the two types of surgeries. And patients with preoperative VAS less than 2 may benefit more from an AcAsa procedure.

CIP4 Expression is Associated With The Prognosis in Colorectal Cancer

2020 ◽  
Author(s):  
Keqian Zhang ◽  
Tianqi Mao ◽  
Zhicheng He ◽  
Xiaojiao Wu ◽  
Yu Peng ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Cox Regression ◽  
Prognostic Significance ◽  
Lymphatic Invasion ◽  
Chi Square ◽  
Interacting Protein ◽  
Cox Regression Analysis ◽  
Kaplan Meier ◽  
Chi Square Test ◽  
Student’S T

Abstract Background: This study was conducted to detect the expression of Cdc42 interacting protein 4 (CIP4) in patients with colorectal cancer (CRC), and explore the role of CIP4 in prognosis of CRC patients.Methods: The expression of CIP4 mRNA was determined by quantitative real-time PCR (qRT-CPR) and compared by student’s t-test between groups. Relationships of clinical characteristics and CIP4 expression were analyzed by Chi-square test. Kaplan-Meier curves were used to estimate the overall survival of CRC patients. And Cox regression analysis was conducted to identify the prognostic biomarkers for CRC patients.Results: The qRT-PCR results showed that CRC tissues were detected with significantly high CIP4 mRNA expression compared with adjacent normal controls (P<0.0001). The overexpression of CIP4 in CRC tissues was influenced by distant metastasis (P=0.021), lymphatic invasion (P=0.012) and TNM stage (P=0.006). But, other clinical factors including age, gender, differentiation and tumor site were proved to have no obvious effects on CIP4 expression (all, P>0.05). The survival curves showed that patients with high CIP4 expression generally lived shorter than those with low CIP4 expression (P<0.001). In addition, the multivariate analysis revealed that differentiation (P=0.044, HR=1.631, 95%CI=1.013-2.626) and CIP4 expression (P=0.000, HR=5.283, 95%CI=3.138-8.893) were of great prognostic significance for CRC patients.Conclusion: Taken together, up-regulation of CIP4 in CRC tissues represented poor prognosis for patients.

scholarly journals Comparison of Patient Satisfaction Between Virtual Visits During the COVID-19 Pandemic and In-person Visits Pre-pandemic

2020 ◽  
pp. 000348942097776
Author(s):  
Kyohei Itamura ◽  
Dennis M. Tang ◽  
Thomas S. Higgins ◽  
Franklin L. Rimell ◽  
Elisa A. Illing ◽  
...  
Keyword(s):  
Patient Satisfaction ◽  
Interpersonal Communication ◽  
Healthcare Providers ◽  
The United States ◽  
Clinic Visit ◽  
Chi Square ◽  
Level Of Evidence ◽  
Virtual Visits ◽  
Chi Square Test ◽  
Student’S T

Objective: To compare the patient experience of a virtual otolaryngology clinic visit to an in-person visit, especially with its significantly increased implementation during the COVID-19 pandemic. Methods: Patient satisfaction (PS) metrics from the Clinician and Group Consumer Assessment of Healthcare Providers and Systems survey were queried from March 1, 2020 to May 1, 2020 for telehealth visits and January 1, 2020 to March 1, 2020 for in-person visits. Overlapping and comparable questions were analyzed using Mann-Whitney U test, Chi-square test for independence, and Student’s t-test. Results: There were 1284 partial or complete PS surveys from in-person visits and 221 partial or complete virtual PS surveys. There were statistically significantly worse virtual visit evaluations of provider listening, conveyance of information, likelihood to recommend, and overall provider ratings compared to in-person visits. Conclusion: Telehealth has become the new norm for most healthcare providers in the United States. This study demonstrates some of the initial shortcomings of telehealth in an otolaryngology practice and identifies challenges with interpersonal communication that may need to be addressed as telehealth becomes increasingly prevalent. Level of Evidence: Three.

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