bluuebunny/crossref_metadata_2025_split huggingface dataset:
Gestión Digital Universitaria: Una Propuesta Emergente en Tiempos de Pandemia
Authors: Figueredo-Díaz Omar Enrique 
Published: November 2021

Vida y educación son derechos humanos establecidos en el documento de Declaración de los Derechos Humanos (DDHH) en el cual la Organización Naciones Unidades (ONU), concibe, desde el año 1948. Hasta ese momento, en Venezuela, las Instituciones de Educación Universitaria (IEU) desarrollaban sus funciones de manera presencial, a pesar de que algunas habían iniciado los procesos de aprendizaje mediados por la tecnología. Con base en lo anteriormente expuesto, el Vicerrectorado Académico de la Universidad José Antonio Páez diagnosticó las necesidades administrativas del plan, estableciendo como objetivo diseñar un modelo de gestión digital para garantizar la continuidad de los procesos universitarios, tanto académicos como administrativos. El tipo de investigación fue descriptiva, con un diseño documental, aplicado a una muestra de cuatro (4) facultades y dos (2) direcciones generales. Como resultado se generó una propuesta bajo una visión integradora de cuatro (4) dimensiones: 1) Sistematización de la información, 2) Capacitación del personal, 3) Articulación de los actores, 4) Seguimiento y control del modelo. Las evidencias mostraron que la sistematización de la información y la capacitación del personal en los procesos administrativos son clave de la gestión universitaria, la cual se optimizó al incorporar la tecnología, concluyendo que cuando se fusionan las teorías gerenciales con las herramientas digitales se desarrollan de manera eficiente los procesos propios de la gestión universitaria.
Why Have the Observed High-frequency QPOs Not Been Produced by (MHD) Computer Simulations of Black Hole Accretion Disks?
Authors: Wagoner Robert V. , Tandon Celia R. 
Published: November 2021

Abstract
We compare some predictions of Wagoner & Tandon (WT) with the results of the hydrodynamic and magnetohydrodynamic (MHD) simulations of Reynolds & Miller (RM). It appears that the MHD simulations were not run for long enough and the numerical damping was not small enough to produce the observed high-frequency QPOs (and the g-mode seen in the hydro simulations).
Foodborne parasitic diseases in China
Authors: Song Langui , Xie Qingxing , Lv Zhiyue 
Published: November 2021

Objective:
Foodborne parasitic diseases, although with a declining overall incidence rate, are still endangering local public safety. This review aims to describe the current situation and epidemiological trends of foodborne parasitic diseases in China in order to explore possible reasons contributors to its high prevalence in some areas, and propose strategies for prevention and control accordingly.

Methods:
A scoping review was conducted by searching PubMed, CNKI, Wanfang, CQVIP, Embase, and the Cochrane Library using search formula “foodborne parasitic diseases (or foodborne parasites)” AND “China”. Studies on foodborne parasitic diseases in China were considered, but only articles in English or Chinese published between January 1980 and June 2020 were retrieved. Included studies were screened according to the eligibility criteria: 1) diseases consistent with the WHO definition of foodborne parasitic diseases; 2) the food carriers were included in the WHO food classification; 3) data related to epidemiology, pathogenicity, and prevention and control; 4) Foodborne parasitic diseases cases or outbreaks in China.

Results:
A total of 111 out of 665 records were included and summarized. The prevalence of clonorchiasis, angiostrongyliasis, echinococcosis, trichinellosis and cysticercosis was still increasing although the infection rate of soil-transmitted nematodes has substantially decreased in recent years. Diverse eating habits, close contact with animals, and urbanization were contributing factors to the increase.

Conclusions:
Foodborne parasitic diseases remain an important public health issue in China with the progress of economic globalization and food diversification. We should manage to raise public awareness about the prevention and control of foodborne parasitic diseases, improve health and safety inspections, as well as public health practice.
Relationship between nutritional status and pressure-ulcer development among critically ill patients
Authors: Ismaeil Manal Sayed , Elfeky Hanaa Ali Ahmed , Elnamory Doha Salah 
Published: November 2021

Background
Pressure ulcers represent a major health problem, particularly in critically ill patients whose nutritional status is negatively affected by illness. Therefore, careful assessment and monitoring of critically ill patients are important nursing considerations.

Aim
To assess the relationship between nutritional status and occurrence of pressure ulcers among adult critically ill patients.

Research design
A descriptive correlational research design was utilized in this study.

Research questions
1–What is the nutritional status of adult critically ill patients at Cairo University Hospitals? 2–Is there a relationship between nutritional status and pressure-ulcer development among adult critically ill patients at Cairo University Hospitals?

Setting
Different ICUs affiliated to Cairo University Hospitals.

Sample
A purposive sample consisting of 90 patients was included.

Tools of data collection
Demographic and medical data sheet, Braden scale, and Derby nutritional score.

Results
Nearly two-thirds of the studied sample was not at risk of nutritional deficiency in different assessment times in percentages of 58.2, 55.6, 62.2, 66.6, and 61.1%, respectively. As well, nearly half of the patients were not at risk of developing pressure ulcers in different assessment times in percentages of 46.7, 46.7, and 56.3%, respectively. Pressure-ulcer development did not differ significantly in relation to sex and;Deg;BM;Deg;I (χ
2=1.875, P≤0.759, χ
2=5.639, P≤0.688). A negative significant statistical correlation was found between nutritional status and the risk of developing pressure ulcer (r=−0.761, P≤0.000).

Conclusion
Nutritional status was negatively associated with pressure-ulcer development. Age, immobility, and sensory perceptual alteration represented significant determinants of patients’ readiness for developing pressure ulcers.

Recommendations
Regular and careful assessment of critically ill patients’ nutritional status, frequent skin assessment for prevention, early detection of pressure ulcers, availability of written guidelines, and booklets about early detection and management of pressure ulcers.
COVID-19, An early investigation from exposure to treatment outcomes in Tehran, Iran
Authors: Ashraf Mohammad Ali , Shokouhi Nasim , Shirali Elham , Davari-Tanha Fateme , Shirani Kiana , Memar Omeed , Kamalipour Alireza , Azarnoush Ayein , Mabadi Avin , Ossareh Adele , Sanginabadi Milad , Azad Talat Mokhtari , Aghaghazvini Leila , Ghaderkhani Sara , Poordast Tahereh , Pourdast Alieh , Nazemi Pershang 
Published: November 2021

Background:
There is a growing need for information regarding the recent coronavirus disease of 2019 (COVID-19). We present a comprehensive report of COVID-19 patients in Iran.

Materials and Methods:
One hundred hospitalized patients with COVID-19 were studied. Data on potential source of exposure, demographic, clinical, and paraclinical features, therapy outcome, and postdischarge follow-up were analyzed.

Results:
The median age of the patients was 58 years, and the majority of the patients (72.7%) were above 50 years of age. Fever was present in 45.2% of the patients on admission. The most common clinical symptoms were shortness of breath (74%) and cough (68%). Most patients had elevated C-reactive protein (92.3%), elevated erythrocyte sedimentation rate (82.9%), and lymphocytopenia (74.2%) on admission. Lower lobes of the lung were most commonly involved, and ground-glass opacity (81.8%) was the most frequent finding in computed tomography scans. The administration of hydroxychloroquine improved the clinical outcome of the patients. Lopinavir/ritonavir was efficacious at younger ages. Of the 70 discharged patients, 40% had symptom aggravation, 8.6% were readmitted to the hospital, and three patients (4.3%) died.

Conclusion:
This report demonstrates a heterogeneous nature of clinical manifestations in patients affected with COVID19. The most common presenting symptoms are nonspecific, so attention should be made on broader testing, especially in age groups with the greatest risk and younger individuals who can serve as carriers of the disease. Hydroxychloroquine and lopinavir/ritonavir (in younger age group) can be potential treatment options. Finally, patients discharged from the hospital should be followed up because of potential symptom aggravation.
Assessment of Suicidal Ideation in Psychiatry Outpatient Department Patients
Authors: Gajbhiya Akansha M. , Menon Preethi , Chaudhury Suprakash , Saldanha Daniel 
Published: November 2021

Background:
Mental disorders occupy a premier position in the matrix of causation of suicide. Suicidal ideation among psychiatric patients is a less explored topic in India.

Aim:
The aim of this study is to study the prevalence and clinical correlates of suicidal ideation in patients attending psychiatry outpatient department (OPD).

Materials and Methods:
This cross-sectional study was conducted in the psychiatry outpatient department of a tertiary care hospital. Beck's suicide intent scale was used to quantify suicidal ideation. Beck's Hopelessness scale and Depression, Anxiety and Stress Scale were used to study levels of hopelessness, depression, anxiety, and stress in patients. Groups with and without suicidal ideations were compared on different variables.

Results:
Suicidal ideation was present in 36% of psychiatry OPD patients. Out of these 13% patients had previous suicidal attempts. Most of them attempted suicide once. Majority had either fleeting suicidal ideas or passive death wish, with poisoning noted as the most common method of attempted suicide. Suicidal ideation had a statistically significant association with levels of depression, anxiety, and stress. Highest stress levels were found in anxiety disorders. Suicidal ideation was commonly observed in patients with depression and other mood disorders and those with previous attempts. More than half of the patients with suicidal ideation never sought help.

Conclusion:
Increasing levels of depression, anxiety, stress, and hopelessness were associated with increased suicidal ideation. Substance use, history of psychiatric illness, triggering stressor, and low perceived social support were also associated with suicidal ideation in psychiatric patients.
Case Series of Retinopathy of Prematurity Blindness in Nigeria
Authors: Ademola-Popoola Dupe Serifat , Onakoya Adeola O. , Ezisi Chinyelu Nkemdilim , Okeigbemen Valentina Winifred , Aghaji Ada E. , Musa Kareem Olatunbosun , Adio Adedayo Omobolanle , Ibrahim Yusuf A. , Oguego Ngozi Chinyelu 
Published: November 2021

Background Statement:
Inadequate retinopathy of prematurity (ROP) screening coverage portends a high risk for increasing the cases of ROP blindness. This study aims to report the clinical profile of pre-term babies who developed ROP blindness, highlight the usefulness in determining screening criteria and the role of private hospitals in ROP blindness prevention.

Case Series Report:
Online Google form and telephone survey was conducted from May to December 2020 among paediatric ophthalmologists who provided the clinical details of ROP blind children seen between 2016 and 2020. The main outcome measured included type of the hospital of birth, gestational age, birth weight, ROP Screening and treatment, and blinding ROP Stage among children born premature. The SPSS-IBM version 26 was used for the analysis. Eighteen children blind from ROP with an equal male-to-female ratio were reported. Mean gestational age was 28.4 ± 2.2 weeks (range 26 - 34 weeks, median was 28.0 weeks). Mean birth weight was 1173.7 ± 317.9 grams (range 776 - 2100 grams, median 1125 grams). Six (33.3%) babies were born in private hospitals between 28 and 32 weeks. Sixteen (88.9%) children never had ROP screening. Fifteen (83.3%) were blind in both eyes. Six (33.3%) had Stage IVb and 12 (66.7%) Stage V.

Conclusion:
About 90% of the babies who became blind did not undergo ROP screening. It is crucial that all babies born at 34 weeks or earlier and have birth weight of < 1500 grams in public/private hospitals be screened for ROP to prevent this avoidable blindness in Nigeria.
Incidence and mortality trends of thyroid cancer from 1980 to 2016
Authors: Wirth Simon , Syleouni Maria-Eleni , Karavasiloglou Nena , Rinaldi Sabina , Korol Dimitri , Wanner Miriam , Rohrmann Sabine 
Published: November 2021

AIMS OF THE STUDY: Thyroid cancer incidence rates have been increasing globally over past decades. However, no study examining those trends in the canton of Zurich, Switzerland exists. In this study, we describe the incidence and mortality trends of thyroid cancer in the canton of Zurich during a 37-year period (1980–2016) including factors such as sex, histological subtypes and age at diagnosis.
METHODS: We analysed population-based cancer registry data from 1980-2016 for the canton of Zurich, Switzerland. We estimated the age-standardised incidence and mortality rates using the European standard population. Joinpoint regression was used to detect average annual percentage changes (AAPCs) and their corresponding 95% confidence intervals (CIs).
RESULTS: We included 2972 primary cases of thyroid cancer (72.3% in women). The papillary cases accounted for the majority of incident cases (65.8%). In 2016, women had a higher age-standardised incidence rate than men for both papillary (10.4 and 3.3, respectively, per 100,000) and non-papillary (1.6 and 0.7, respectively, per 100,000) thyroid cancer. In both men and women, the incidence rates of thyroid cancer increased significantly over the study period with AAPCs of 1.4% (95% CI 0.6–2.2%) and 2.6% (95% CI 2–3.1%), respectively. These increasing incidence trends are mainly driven by papillary thyroid cancer with AAPCs of 3.4% in men (95% CI 2.3% to 4.4%) and 4.3% in women (95% CI 3.7% to 5%). Mortality rates significantly decreased in both sexes (men AAPC –3.6%, 95% CI –4.7% to –2.4%; women AAPC –3.7%, 95% CI –4.8% to –2.6%).
CONCLUSIONS: Our results show significantly increasing age-standardised incidence rates of thyroid cancer over time in both sexes, mainly due to papillary thyroid cancer, the most frequent histological subtype, and the only subtype for which a significant increase was observed. It is possible that many indolent thyroid cancers, and more specifically papillary microcarcinomas, are increasingly diagnosed, which may not lead to symptoms if undetected. Therefore, targeted diagnostic strategies are necessary to avoid overdiagnosis of thyroid cancer. Nevertheless, we cannot completely exclude a partly true increase.
Computational studies on Emodin (C15H10O5) from Methanol extract of Pteridium acquilinum leaves
Authors: Khan M. E , Etim E. E. , Anyam V. J , Abel A , Osigbemhe I. G , Agber C. T 
Published: November 2021

This research isolates, characterizes, and studies the computational and frequency calculations of emodin, extracted from the leaf extract of Pteridium acquilinum leaves using methanol. Vacuum liquid and tin layer Chromatography was used for the purification of the molecule. The (VLC purified), fraction was analyzed by Nuclear magnetic resonance (NMR) and the chemical structure of the compound isolated (anthraquinone), was confirmed by 1H & 13C-NMR analyses as emodin (C15H10O5). Computational and frequency studies have been done on the isolated molecule. Optimized geometry, IR frequencies, Bond distances (R) and angles (A), Dipole moments and other parameters have been computationally determined for the isolated molecule from quantum chemical calculations using the GAUSSIAN 09 retinue programs. Experimentally determined and computationally measured IR frequencies agree perfectly with each other. Computational studies can be used to predict unobserved chemical phenomena like design of new drugs and materials such as the positions of constituent atoms in relationship to their relative and absolute energies, electronic charge densities, dipoles, higher multiple moments, vibrational frequencies, relativity or other spectroscopic quantities and cross sections for collision with other molecules. This is the first time this anthraquinone, [emodin], with most of the parameters examined is reported from P. aquilinum.
ĐA DANG DI TRUYỀN CỦA 120 GIỐNG/DÒNG ĐẬU NÀNH (Glycine max (L.) Merr.) BẰNG CHỈ THỊ PHÂN TỬ SSR
Authors: Kỳ Huỳnh , Hiền Nguyễn Lộc , Giang Văn Quốc , Mạnh Nguyễn Văn , Khang Chung Trương Quốc , Đô Trần In , Tùng Nguyễn Châu Thanh 
Published: November 2021

Nghiên cứu đa dạng di truyền nhằm mục đích tìm ra mối quan hệ giữa các kiểu gen trong tập đoàn giống/dòng cây trồng, từ đó có thể đưa ra chiến lược chọn tạo giống, cải thiện nguồn gen. Nghiên cứu này đã sử dụng 09 chỉ thị phân tử SSR để đánh giá mức độ đa dạng di truyền của 120 giống/dòng đậu nành (Glycine max (L.) Merr.) đang được bảo tồn tại ngân hàng giống trường Đại học Cần Thơ. Kết quả điện di sản phẩm PCR bằng 09 chỉ thị phân tử SSR thu được 52 phân đoạn và tất cả 52 phân đoạn đều có tỷ lệ đa hình trung bình cao (100%). Chỉ số PIC dao động từ 0,05 (satt596) đến 0,46 (satt009), với giá trị trung bình là 0,21. Cây phả hệ được xây dựng dựa trên 09 chỉ thị SSR bằng phân tích nhóm UPGMA phân các mẫu thành 11 nhóm chính với hệ số di truyền trung bình là 0,7 và hệ số tương đồng dao động từ 0,47 - 0,87. Kết quả này cho thấy bộ sưu tập 120 giống/dòng đậu nành rất đa dạng về bản chất di truyền và có thể dùng làm vật liệu ban đầu cho công tác chọn tạo giống đậu nành trong tương lai.
ABSTRACT
Genetic diversity research aims to study the relationship between genotypes in the varieties/lines, as the results, a breeding strategy will be set up for genetic improvement. In this study, 09 SSR molecular markers were used to evaluate the genetic diversity of 120 soybean varieties/lines being conserved at the gene bank of Can Tho University. A total of 52 fragments were produced by 09 SSR primers with 100% polymorphism rate. The PIC index value was ranged from 0.05 (satt596) to 0.46 (satt009), the average PIC index was 0.21. Using UPGMA analysis showed that the phylogenetic tree was divided 120 soybean varieties/lines into 11 main groups with the average genetic coefficient of 0.7 and the similarity coefficient ranging from 0.47-0.87. Thus, this result showed that the collection of 120 soybean varieties/lines is very diverse in genetic background and can be used as a starting material for future soybean breeding.
ỨNG DỤNG GIS VÀ VIỄN THÁM ĐÁNH GIÁ BIẾN ĐỘNG DIỆN TÍCH CÂY CAO SU DO ẢNH HƯỞNG CỦA BÃO SỐ 10 NĂM 2013 TẠI HUYỆN BỐ TRẠCH, TỈNH QUẢNG BÌNH GIAI ĐOẠN 2013-2019
Authors: Tỵ Phạm Hữu , Thanh Nguyễn Ngọc , Minh Lê Hải , Bình Nguyễn Văn 
Published: November 2021

Nghiên cứu này sử dụng ảnh vệ tỉnh Landsat LC8 của các năm 2013, 2014, và 2019 để giải đoán phân loại lớp phủ cây cao su ở huyện Bố Trạch, tỉnh Quảng Bình và đánh giá biến động diện tích cao su sau ảnh hưởng của bão số 10 (tên là Wutip) năm 2013. Kết quả giải đoán còn sử dụng để đánh giá thiệt hại diện tích trồng cây cao su do ảnh hưởng của bão số 10 năm 2013 và biến động diện tích trồng cây cao su giai đoạn 2013-2019. Các số liệu điều tra thực địa, phỏng vấn cán bộ, số liệu báo cáo thứ cấp, tài liệu phục vụ các hội thảo về phát triển cây cao su ở Quảng Bình đã được thu thập để hỗ trợ cho công việc phân tích, giải đoán ảnh vệ tinh. Nghiên cứu này kết hợp phương pháp giải đoán ảnh theo định hướng đối tượng kết hợp với thuật toán Maximum Likelihood. Kết quả giải đoán đã được đánh giá, độ chính xác giải đoán tổng thể biến động từ 82-88% và hệ số Kappa biến động từ 0,8-0,87 trong các năm nghiên cứu. Qua thống kê kết quả giải đoán ảnh viễn thám Landsat LC8, diện tích trồng cây cao su tại huyện Bố Trạch, tỉnh Quảng Bình bị thiệt hại đáng kể do ảnh hưởng của bão số 10 năm 2013, hơn 1.500 ha bị thiệt hại. Tuy nhiên, mỗi năm diện tích cây sao su được khôi phục lại và trồng mới tại huyện Bố Trạch, do đó sau bão số 10 năm 2013, diện tích cây cao su tăng lên đáng kể từ năm 2014-2019, hơn 2.500 ha.
ABSTRACT
This study used Landsat LC8 satellite images of 2013, 2014, and 2019 to interpret the classification of rubber tree landcover in Bo Trach district, Quang Binh province and evaluate changes in rubber area after the impact of storms number 10 (named Wutip) in 2013. The results of interpretation were also used to assess the damage of rubber plantations due to the impact of typhoon number 10 in 2013 and changes in rubber plantation area in the period of 2013- 2019. Data from field surveys, interviews with local staff, secondary report data, and documents of conference on rubber tree development in Quang Binh was collected to support analysis and interpretation. This study combined the object-oriented image analysis method combined with the Maximum Likelihood algorithm. The interpretation results were evaluated, the overall interpretation overall accuracy varied from 82-88% and the Kappa coefficient varied from 0.8-0.87 in the studied years. Through the statistical interpretation results of the Landsat LC8 detective, the rubber plantation area in Bo Trach district, Quang Binh province was significantly damaged due to the impact of typhoon number 10 in 2013, over 1500 hectares were damaged. However, each year, the area of ​​​​the rubber tree is restored and newly replanted in Bo Trach district, so after the typhoon number 10 in 2013, the area of ​​rubber trees increased significantly from 2014-2019, over 2,500 ha.