bluuebunny/crossref_metadata_2025 huggingface dataset:
Altered Carcinoembryonic Antigen-Related Cell Adhesion Molecule 1/T-Cell Immunoglobulin Mucin-3 Signaling Causes the Dysregulation of Decidual CD8+T Cells in the Third Trimester during Preeclamptic Pregnancies
Authors: Chen Chun-Qin , Wang Song-Cun , Sun Feng-Run , Li Meng-Die , Du Mei-Rong , Zhang Ying
Published: September 2021

Abstract

Objective:

To investigate the frequency and function of Tim-3+CD8+T cells in the third trimester of normal pregnancies (NPs) and preeclamptic (PE) pregnancies.

Methods:

T-cell immunoglobulin mucin-3 (Tim-3) expression levels of CD8+T cells in the decidua, peripheral blood, and umbilical cord blood obtained from women showing NPs and PE pregnancies were analyzed using flow cytometry. Decidual CD8+T cells were cultured in the presence of recombinant human carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) protein and/or Tim-3-specific neutralizing antibodies for analyzing CD107a and intracellular cytokine expression. The placental CEACAM1 protein expression was analyzed using immunohistochemistry.

Results:

Tim-3+CD8+T cells were more abundant in the decidua than in the peripheral blood. Tim-3 expression in the decidual CD8+T cells was significantly lower in PE patients. Decidual Tim-3+CD8+T cells from PE patients expressed higher levels of CD107a and the Th1-type cytokine IFN-γ, but lower levels of the Th2-type cytokine IL-4. CEACAM1 altered the CD107a, IFN-γ, and IL-4 levels; this was reversed by anti-Tim-3 antibodies. The CEACAM1 protein levels were lower in the placental tissues of women with PE pregnancies than in those of women with NPs.

Conclusions:

Abnormal CEACAM1/Tim-3 regulation may participate in the development of PE, accompanied by disturbed Th2 cell predominance and higher cytotoxicity of decidual CD8+T cells.
An inequality for the ratio of polynomials
Authors: Alzer Horst
Published: September 2021

We show that the classical Chebyshev inequality for sums can be applied to obtain an inequality for the ratio of polynomials.
Pain and mortality among older adults in Korea
Authors: Song Chiil , Chung Wankyo
Published: September 2021

OBJECTIVES: With the increasing elderly population with chronic disease, understanding pain and designing appropriate policy interventions to it have become crucial. While pain is a noted mortality risk factor, limited studies exist due to the various causes of pain and the subjectivity of pain expression. This study aimed to examine the relationship between pain and mortality, controlling for other diseases and socio-cultural factors.METHODS: We analyzed 6,258 individuals aged 45 years or older, the population with the highest prevalence of pain, using the Korean Longitudinal Study of Aging (2006-2016) data and the Cox proportional-hazards model. Further subgroup analyses were conducted by sex and education level to examine differences in the relationship between pain and mortality.RESULTS: The adjusted hazard ratios of mortality were 1.16 (95% confidence interval [CI], 1.00 to 1.34, model 1) and 1.12 (95% CI, 0.97 to 1.29, model 2) for the individuals in pain depending on the models used, where additional socio-cultural factors were accounted for in model 2. For individuals in severe pain, ratios were significantly higher with 1.23 (95% CI, 1.08 to 1.41, model 1) and 1.16 (95% CI, 1.02 to 1.32, model 2). Further subgroup analyses showed that severe pain was more associated with mortality for males and more educated individuals, with adjusted hazard ratios of 1.29 (95% CI, 1.08 to 1.55, model 2) and 1.62 (95% CI, 1.15 to 2.28, model 2), respectively.CONCLUSIONS: Pain showed a statistically significant relationship with mortality risk. Family members or medical staff should pay proper attention to pain, particularly severe pain in males and highly educated individuals.
The age-standardized incidence, mortality, and case fatality rates of COVID-19 in 79 countries: a cross-sectional comparison and their correlations with associated factors
Authors: Hong Dongui , Lee Sohyae , Choi Yoon-Jung , Moon Sungji , Jang Yoonyoung , Cho Yoon-Min , Lee Hyojung , Min Sukhong , Park Hyeree , Hahn Seokyung , Choi Ji-Yeob , Shin Aesun , Kang Daehee
Published: September 2021

OBJECTIVES: During the coronavirus disease 2019 (COVID-19) pandemic, crude incidence and mortality rates have been widely reported; however, age-standardized rates are more suitable for comparisons. In this study, we estimated and compared the age-standardized incidence, mortality, and case fatality rates (CFRs) among countries and investigated the relationship between these rates and factors associated with healthcare resources: gross domestic product per capita, number of hospital beds per population, and number of doctors per population.METHODS: The incidence, mortality, and CFRs of 79 countries were age-standardized using the World Health Organization standard population. The rates for persons 60 years or older were also calculated. The relationships among the rates were analysed using trend lines and coefficients of determination (R2). Pearson correlation coefficients between the rates and the healthcare resource-related factors were calculated.RESULTS: The countries with the highest age-standardized incidence, mortality, and CFRs were Czechia (14,253 cases/100,000), Mexico (182 deaths/100,000), and Mexico (6.7%), respectively. The R2 between the incidence and mortality rates was 0.852 for all ages and 0.945 for those 60 years or older. The healthcare resources-related factors were associated positively with incidence rates and negatively with CFRs, with weaker correlations among the elderly.CONCLUSIONS: Compared to age-standardized rates, crude rates showed greater variation among countries. Medical resources may be important in preventing COVID-19-related deaths; however, considering the small variation in fatality among the elderly, preventive measures such as vaccination are more important, especially for the elderly population, to minimize the mortality rates.
Association between body temperature and leukocyte telomere length in Korean middle-aged and older adults
Authors: García-García Carolina , Shin Chol , Baik Inkyung
Published: September 2021

OBJECTIVES: Data on associations between body temperature (BT) and leukocyte telomere length (LTL), which has been widely used as a biomarker of cellular senescence in recent epidemiological studies, are limited. Therefore, this study aimed to explore the associations between a normal BT range (35.0-37.5°C) and LTL via 6-year longitudinal observations of 2,004 male and female adults aged 50 or older.METHODS: BT was obtained by measuring the tympanic temperature, and relative LTL was determined by real-time polymerase chain reaction. Robust regression analysis was used to evaluate the association between the baseline and follow-up LTL values and their differences.RESULTS: A significant inverse association was found between BT and LTL at baseline. The regression coefficient estimate was -0.03 (95% confidence interval, -0.07 to -0.001; p<0.05). This association was stronger in participants with a body mass index >25 kg/m2 and males (p<0.01). However, there were no associations between BT and LTL at follow-up or BT and 6-year longitudinal differences in LTL.CONCLUSIONS: These findings suggest that having a high BT between 35°C and 37.5°C (95°F and 99°F) may be detrimental for obese individuals in terms of biological aging.
Perceived Recovery Time from Common Cold as a Possible Indicator of Physical Resilience
Authors: Kim Yoonki , Won Chang Won , Kim Sunyoung , Kim ByungSung , Kim Miji , Jeong Eunjin , Yang Jisoo , Lee Hyona
Published: September 2021

Background: Resilience refers to the ability to recover function after encounter with stressors. While psychological resilience refers to the ability to cope with psychological stress, physical resilience refers to functional restoration after biomedical challenges. However, there is no gold standard to assess physical resilience. Accordingly, we explored whether the perceived recovery time from common cold could be used to represent physical resilience.Methods: We analyzed data of individuals aged 72–86 years who had participated in the Korean Frailty and Aging Cohort Study in 2019. Among the 1,455 survey participants, 594 with asthma and chronic obstructive pulmonary disease and missing data were excluded. The remaining 861 participants were divided into three groups according to the number of days required for recovery from common cold (Group 1, 1–4 days; Group 2, 5–7 days; and Group 3, ≥8 days). The relationship between recovery time and psychological resilience scale (Brief Resilience Scale [BRS]) score, physical frailty (Fried’s physical frailty phenotype and the Korean Frailty Index for Primary Care [KFI-PC]), and frailty outcome was investigated.Results: Group 3 comprised individuals more likely to be women, sleep less, be less physically less active, fall more often, and have a low EuroQol visual analogue scale score. BRS scores differed significantly among the three groups (Group 1, 13.29; Group 2, 14.32; Group 3, 15.22; p<0.001). In multivariate analysis, post-hoc analysis with the Bonferroni method revealed significant differences in BRS between Groups 1–2 and Groups 1–3. However, the KFI-PC and number of falls did not differ significantly. Conclusions: Longer days of recovery from cold were associated with worse BRS scores. However, neither frailty nor the number of falls was related.
In vitro assessment of the antibacterial activity of combinations of methanolic extracts of Mangifera indica L. bark and Psidium guajava L. leaf on multidrug-resistant Pseudomonas aeruginosa
Authors: Akena Churchill , Akampa Gloria Maxensia , Munanura Edson Ireeta , BD Otto Robert , Kaggwa Bruhan , Rubayiza Paul , Ndagire Margaret
Published: September 2021

Pseudomonas aeruginosa causes various infections in humans both in hospital and community settings. Mangifera indica Linnaeus bark and dry Psidium guajava Linnaeus leaves have individually demonstrated activity against P. aeruginosa. This study aimed to assess the combined antibacterial activity of methanolic extracts of dry M. indica bark and dry P. guajava leaves on Multidrug-Resistant P. aeruginosa. Different proportion combinations of P. guajava and M. indica were assessed for antipseudomonal activity using Agar well diffusion method. Colistin was the positive control. The Fractional Inhibitory Concentration Index (FICI) was also determined. The combination of methanolic extracts of P. guajava leaves (35 mg/mL) and M. indica bark (6.25 mg/mL) had a superior antibacterial effect on Multidrug-Resistant P. aeruginosa when compared with the individual extracts used alone (p˂0.05), save for P. guajava (100 mg/mL) (p = 0.1373). Colistin was significantly more active on MDR P. aeruginosa than all the test extract concentrations used. This combination of M. indica bark and P. guajava leaves methanolic extracts had a FICI of 0.2434. This study demonstrates that the combination of P. guajava leaves (35 mg/mL) and M. indica bark (6.25 mg/mL) has synergistically enhanced activity against MDR P. aeruginosa.

Keywords: Antipseudomonal, MDR Pseudomonas aeruginosa, Mangifera indica, and Psidium guajava
Time-kill kinetics and antibacterial activity of root extract of Adenodolichos paniculatus (Hua) Hutch & Dalz (Fabaceae)
Authors: Kyahar Friday I. , Onwuliri Edith A. , Ehinmidu Joseph O. , Oladosu Peters O.
Published: September 2021

Medicinal plants have been used in treatment of illness from time immemorial. Adenodolichos paniculatus is a medicinal plant used for traditional remedy of sore throat infections. This study therefore, evaluated the antibacterial activities of the root extracts and time-kill kinetics of the most potent extract. Five extracts, obtained by maceration using n-hexane, chloroform, ethyl acetate, methanol and water sequentially were evaluated for antibacterial activities and time-kill kinetics against Streptococcus pyogenes, Staphylococcus aureus, Pseudomonas aeruginosa and Escherichia coli. Chloroform root extract at 100 mg/ml was active against Streptococcus pyogenes, Staphylococcus aureus and Pseudomonas aeruginosa with zones of inhibition 25.00, 21.00 and 14.75 mm respectively but not against Escherichia coli. Minimum inhibitory concentrations were 1.56, 6.25 and 25.00 mg/ml respectively and the minimum bactericidal concentrations were 3.12, 12.50 and 50.00 mg/ml. Complete elimination of S. pyogenes, S. aureus and P. aeruginosa was achieved at concentrations 1.56 mg/ml, 6.25 mg/ml and 25.00 mg/ml within 300, 720 and 960 minutes exposure respectively and at concentrations 3.12 mg/ml, 25.00 mg/ml and 50.00 mg/ml within 180, 300 and 720 minutes exposure respectively. Chloroform root extract has the potential to be used as antibacterial agent and was better than the other solvent extract two-fold.

Keywords: Adenodolichos paniculatus; Antibacterial activity; Time-kill kinetics; Percentage reduction, Log reduction
Investigation of the Kerr effect on polarised light
Authors: Mfon R.E. , Al Amri Z. , Esaduwha S.O.
Published: September 2021

A constructed Kerr cell with brass electrodes and liquid nitrobenzene was used for studying the Kerr effect on polarised light. Laser light was plane polarised and passed through an energised Kerr cell. The plane polarised light after travelling a path length equal to the cell electrode length in a birefringent medium, suffered optical retardance before passing through an analyser which then transmitted light of certain intensity to a photodiode. Data used were generated from experiments and theoretical considerations using Kerr’s law and Malus’ law. With crossed Polaroids, the Kerr cell behaved as an electro-optic shutter and the maximum light intensity transmitted rose steadily with increased phase difference to about 0.82. With parallel Polaroids, the maximum light intensity transmitted was higher and found to be 0.89 at zero phase difference. This value indicates a large phase delay and decreased to a non-zero value. At maximum electric field intensity, a ‘climbing’ of the nitrobenzene on the Kerr cell walls and electrodes was observed with more nitrobenzene attracted to the anode. The effect suspected to be of electrostatic origin may have been driven by the predominant ions in the nitrobenzene. Furthermore, the higher level of the nitrobenzene meniscus at the anode probably suggests that while the cathode injected carriers of negative charge into the liquid the injection of carriers from the anode was weaker. For better results, attention should be given to Polaroid quality, the purity of the liquid nitrobenzene and the length of the electrodes used.
Quantitative depth estimation using analytic signal at low-latitude for ground gravity survey of Gbede, Oyo State
Authors: Layade G.O. , Adewumi O.O. , Makinde V. , Bada B.S.
Published: September 2021

This paper presents the insitu gravity survey of basement complex rock in Southwestern Nigeria. In the E-W direction, LaCoste and  Romberg Gravity Meter type G309 was used to carry out a ground gravity survey where ten traverses were established over a distance of 1000 m by 500 m with station spacing of 20m and a traverse interval of 50 m. Observed gravity values were corrected, analyzed and  interpreted quantitatively. The corrected bouguer gravity data were presented as bouguer anomaly graphs. Analytic Signal at low-latitude was adopted to compute the depth to source of iron-ore for a contact, a thin sheet (dyke) and a horizontal cylinder. The result revealed a depth range of 5.45 m-8.25 m for a contact, 9.44 m-14.29 m for a thin sheet (dyke) while a depth range of 12.31 m-18.05 m was estimated for a horizontal cylinder respectively. An average depth of 11.81±3.64 m was estimated for the entire area irrespective of the structural model, this was compared with published magnetic results of the study area and a small disparity of potential field measurements was recorded. The overall computed results signified the existence of iron mineral deposits at low depths across the study area.
Genetic variability of spiralling whitefly Aleurodicus disperses Russell on Citrus aurantifolia Christm and Ocimum gratissimum L.
Authors: Adeleke Mistura Temitope , Adekunle Oladunni Nimota , Feyisola Roseline Tolulope , Owagboriaye Folarin Ojo , Arowosegbe Olayemi Tope , Lawal Olusegun Adebayo
Published: September 2021

The spiralling whitefly, Aleurodicus dispersus Russell (Hemiptera: Aleyrodidae), has a wide range of anatomy, physiology, behaviour, and ecology depending on the host plant. This research looked at the genetic variations between A. dispersus populations on two separate host plants (Citrus aurantifolia and Ocimum gratissimum). The existence of host-related genetic variation in A. dispersus populations was determined using Rapid Amplification of Polymorphic DNA (RAPD) markers. Our findings revealed that the A. dispersus populations on the two host plants had a considerable amount of genetic divergence. The spiralling whiteflies on the adaxial part of Citrus aurantifolia were genetically distinct from those on the abaxial part of the same plants. Various population genetic parameters such as heterozygosity, Nei's genetic gap, and fixation indices (FST) revealed that spiralling whitefly populations vary genetically, which may be attributable to spiralling whitefly populations originating from multiple sources. These findings also have consequences for the invasive pest's quarantine safety strategy.
Interseasonal RSV infections in Switzerland – rapid establishment of a clinician-led national reporting system (RSV EpiCH)
Authors: Von Hammerstein Alix L. , Aebi Christoph , Barbey Florence , Berger Christoph , Buettcher Michael , Casaulta Carmen , Egli Adrian , Gebauer Mathias , Guerra Beatrice , Kahlert Christian , Kellner Eva , Kottanattu Lisa , Opota Onya , Mann Christian , Meyer Sauteur Patrick , Plebani Margherita , Ritz Nicole , Testi Chiara , Von Niederhäusern Valentin , Wagner Noemie , Zimmermann Petra , Zucol Franziska , Agyeman Philipp K. A. , Trück Johannes
Published: September 2021

In anticipation of an interseasonal respiratory syncytial virus (RSV) epidemic, a clinician-led reporting system was rapidly established to capture RSV infections in Swiss hospitals, starting in January 2021. Here, we present details of the reporting system and first results to June 2021. An unusual epidemiology was observed with an interseasonal surge of RSV infections associated with COVID-19-related non-pharmacological interventions. These data allowed real-time adjustment of RSV prophylaxis guidelines and consequently underscore the need for and continuation of systematic nationwide RSV surveillance.
Liposoluble portion of the red alga Pyropia yezoensis protects alcohol induced liver injury in mice
Authors: Lee Ji-Hyeok , Ahn Ginne , Ko Ju-Young , Kang Nalae , Jung Kyungsook , Han Eui-Jeong , Kim Gwang-Hoon , Kim Hee Jeong , Choi Cheol Soo , Jeon You-Jin
Published: September 2021

The hepatoprotective effect of liposoluble portion of Pyropia yezoensis (PYLP) was investigated against alcohol-induced liver injury in mice. Fatty acids were predominant in PYLP obtained from hexane fraction of 70% EtOH extract after ultrasonication. In particular, polyunsaturated fatty acids such as eicosapentaenoic acid and linoleic acid accounted for 56.91% of the total lipids. PYLP significantly reduced liver damage induced by the alcohol treatment in mice. PYLP treatment increased the activity of antioxidant enzymes including superoxide dismutase, catalase, and glutathion peroxidase by reducing thiobarbituric acid reactive substances. Histological observations showed that PYLP minimizes damage to living tissue induced by alcohol treatment by modulating the expression level of proteins involved in the anti-apoptotic signaling pathway. Our results suggest that PYLP, rich in polyunsaturated fatty acids extracted from the red alga P. yezoensis, will be useful as a potential liver protectant in the hangover industry.
Characterization of Coolia spp. (Gonyaucales, Dinophyceae) from Southern Tunisia: first record of Coolia malayensis in the Mediterranean Sea
Authors: Abdennadher Moufida , Zouari Amel Bellaaj , Medhioub Walid , Penna Antonella , Hamza Asma
Published: September 2021

This study provides the first report of the presence of Coolia malayensis in the Mediterranean Sea, co-occurring with C. monotis. Isolated strains from the Gulf of Gabès, Tunisia (South-eastern Mediterranean) were identified by morphological characterization and phylogenetic analysis. Examination by light and scanning electron microscopy revealed no significant morphological differences between the Tunisian isolates and other geographically distant strains of C. monotis and C. malayensis. Phylogenetic trees based on ITS1-5.8S-ITS2 and D1‒D3/28S rDNA sequences showed that C. monotis strains clustered with others from the Mediterranean and Atlantic whereas the C. malayensis isolate branched with isolates from the Pacific and the Atlantic, therefore revealing no geographical trend among C. monotis and C. malayensis populations. Ultrastructural analyses by transmission electron microscopy revealed the presence of numerous vesicles containing spirally coiled ﬁbers in both C. malayensis and C. monotis cells, which we speculate to be involved in mucus production.
STUDY THE STABLE STRUCTURES OF ScGe6 BY GA-DFT AND THE CO ADSORPTION ON ScGe6− CLUSTER
Authors: MINH THAO NGUYEN , THO THANH BUI , LAN HUONG NGUYEN THI
Published: September 2021

The structures of ScGe6 and ScGe6− clusters were investigated by a combination of genetic algorithm with quantum chemical calculations (GA-DFT and DLPNO-CCSD(T)). Results show that the two most stable isomers of the ScGe6 cluster have a pentagonal bipyramid structure with a Sc atom at the vertex and a Ge atom capping the face of tetragonal bipyramid with a Sc atom at the vertex with Cs symmetry. The pentagonal bipyramid with the scandium atom at the vertex with C5v symmetry is the most stable ScGe6− cluster. The CO adsorption on the most stable isomer of the anionic cluster was studied by PBE functional. The isomer A1 of ScGe6− cluster can adsorb CO molecule as well. The most stable structure has CO along with the Sc-Ge bond. In two adsorption models at the Sc atom along the main axis, the Sc-CO adsorption model is more favorable than the Sc-OC model.
DIETARY ACCULTURATION AND INTEREST IN MODIFICATION OF STAPLE FOODS: A PRELIMINARY QUALITATIVE STUDY WITH RICE
Authors: XUAN UYEN PHAN THUY , CHAMBERS IV EDGAR
Published: September 2021

This preliminary study examined differences in dietary perceptions and beliefs of a staple food product and a health focused modification of that food product in a focus groups study of native Vietnamese in Vietnam (VNV) and Vietnamese immigrants to the United States (USV).  The concepts investigated were rice product awareness and beliefs, use and preparation of rice, and overall interest in value-added brown rice product concepts incorporating health related language. While white rice was well accepted and daily consumed by both USV and VNV, the brown rice product concept, despite its numerous health benefits, was not readily accepted by Vietnamese consumers, either from US or Vietnam. Both sets of consumers had culturally negative associations of brown rice with poverty, aging, and illness in Vietnam and those perceptions had not changed with immigration. Neither USV nor VNV consumers considered health benefits as key factors for rice consumption, a staple food in all of their diets, a difference from Caucasian US participants studied earlier. Exposure to US culture seemed to have little impact on US-Vietnamese’s rice eating habits. Thus, for a staple food product it appears that it would take time and considerable effort to impact the Vietnamese immigrants’ cultural foodways.
BẢO VỆ QUYỀN CỦA LAO ĐỘNG NỮ THEO PHÁP LUẬT LAO ĐỘNG VIỆT NAM – VÀ THỰC TIỄN TẠI TRƯỜNG ĐẠI HỌC CÔNG NGHIỆP TPHCM
Authors: THỊ NGUYỆT ĐÀO
Published: September 2021

Cùng với người lao động nam, người lao động nữ ngày càng tham gia và có những đóng góp quan trọng đối với sự phát triển kinh tế, xã hội. Tuy nhiên, do những khác biệt về giới tính, sức khoẻ, thể lực mà việc tham gia lao động của người lao động nữ còn một số hạn chế nhất định. Trong phạm vi bài viết, tác giả chỉ đi vào phân tích và làm rõ một số các quyền của người lao động nữ theo quy định của pháp luật lao động hiện nay và liên hệ thực tiễn tại Trường Đại học Công nghiệp TPHCM, từ đó đưa ra một số giải pháp nhằm hoàn thiện cơ chế bảo vệ quyền lợi của người lao động nữ tại Trường Đại học Công nghiệp TPHCM.

Trong bài viết tác giả sử dụng các phương pháp như: Phương pháp luận của chủ nghĩa Mác – Lênin như: Chủ nghĩa duy vật biện chứng và chủ nghĩa duy vật lịch sử. Tác giả cũng sử dụng các phương pháp nghiên cứu khoa học truyền thống như: Phương pháp so sánh giữa quy định của pháp luật lao động Việt Nam và thế giới, Phương phân tích các quy định của pháp luật và thực tiễn tại Trường Đại học Công nghiệp TPHCM, Phương pháp tổng hợp.
NHÂN TỐ ẢNH HƯỞNG ĐẾN SAI SÓT TRÊN BÁO CÁO TÀI CHÍNH CỦA CÁC DOANH NGHIỆP NHỎ VÀ VỪA
Authors: THỊ THÙY ANH ĐOÀN , MỸ GIANG HỒ THỊ , YẾN NGUYÊN NGUYỄN THỊ , PHƯƠNG THẢO NGUYỄN THỊ , NGỌC TUYỀN LÊ THỊ
Published: September 2021

Hiện nay có nhiều nghiên cứu về nâng cao chất lượng thông tin trên báo cáo tài chính tại các doanh nghiệp niêm yết trên thị trường chứng khoán nhưng vấn đề này lại ít được quan tâm tại các doanh nghiệp nhỏ và vừa. Nghiên cứu sử dụng phương pháp nghiên cứu hỗn hợp bao gồm phương pháp định tính (phỏng vấn chuyên gia) và phương pháp định lượng như phân tích nhân tố khám phá EFA, phân tích hồi quy để xác định và đo lường các nhân tố ảnh hưởng đến sai sót trên BCTC. Nghiên cứu tiến hành khảo sát người hành nghề kế toán tại các doanh nghiệp và các chuyên gia trong lĩnh vực kế toán với số mẫu hợp lệ là 150 mẫu. Kết quả cho thấy hệ thống kiểm soát nội bộ, năng lực nhà lãnh đạo, môi trường pháp lý, kế hoạch đào tạo và bồi dưỡng, năng lực kế toán viên và hệ thống thông tin kế toán tại doanh nghiệp là các yếu tố tác động đến việc sai sót trong kế toán. Từ kết quả của nghiên cứu này, một số ý kiến được đề xuất nhằm hạn chế các sai sót và nâng cao chất lượng thông tin hữu ích cho các doanh nghiệp nhỏ và vừa tại Việt Nam.
CELLULOSE PHỦ NICKEL ỨNG DỤNG CHO QUÁ TRÌNH OXI HÓA ĐIỆN HÓA ETHANOL
Authors: THAO QUYNH NGAN TRAN , HAI DINH PHAM , DANG NAM NGUYEN
Published: September 2021

Vật liệu cellulose và nickel (Ni/cellulose) được ứng dụng tham gia vào phản ứng xúc tác điện hóa đối với ethanol. Cellulose được tổng hợp từ phế thải của nông nghiệp như vỏ cam ở miền nam Việt Nam thông qua phương pháp thủy nhiệt trong môi trường kiềm. Nickel đã được kết tủa thành công trên bề mặt cellulose bằng cách khử hydrazine hydrate. Hình thái học, tham số mạng và trạng thái bề mặt của hỗn hợp Ni/cellulose được xác định bằng phương pháp nhiễu xạ tia X (XRD), phổ hồng ngoại biến đổi Fourier (FTIR), kính hiển vi điện tử quét (SEM). Hoạt tính điện hóa của xúc tác Ni/cellulose cũng được khảo sát bằng phương pháp quét thế vòng tuần hoàn (cyclic voltammetry - CV), quét thế tuyến tính (linear sweep voltammetry – LSV) và chronoamperometry - CA. Kết quả đặc tính cho thấy các hạt Ni kích thước nano phân bố không đồng đều trên mạch cellulose, xúc tác Ni/cellulose cho thấy hoạt tính điện hóa cao và ổn định đối với quá trình điện hóa ethanol. Mật độ dòng điện cực đại của xúc tác Ni/cellulose là gần 1.2 mA.cm-2 khi xuất hiện 0,1M ethanol trong môi trường kiềm. Kết quả cho thấy rằng vật liệu Ni/cellulose hứa hẹn sẽ đóng gớp tích cực như tiếp cận mới cho lĩnh vực xúc tác điện hóa và pin nhiên liệu ethanol.
LÝ THUYẾT HÀNH ĐỘNG TƯƠNG GIAO CỦA HABERMAS VÀ GIÁ TRỊ CỦA NÓ TRONG LĨNH VỰC TRUYỀN THÔNG TRÊN THẾ GIỚI HIỆN NAY
Authors: NGỌC LÂN TRƯƠNG
Published: September 2021

Những năm gần đây, với sự phát triển của internet đã dẫn đến sự bùng nổ mạnh mẽ của truyền thông xã hội, làm thay đổi căn bản hệ sinh thái truyền thông trong thời đại chúng ta. Các phương tiện, hình thức truyền thông mới ra đời ngày một nhiều với những nội dung đa dạng, thông tin mới mẻ và cách truyền đạt phong phú hình thành nên một mạng lưới truyền thông rộng rãi, kết nối mọi người lại với nhau. Tuy nhiên, hệ quả của sự phát triển này là sự bùng nổ thông tin cùng với sự dịch chuyển thông tin với tốc độ chóng mặt gây nên những vấn nạn như thao túng thông tin hay tin giả,v.v... Lý thuyết hành động tương giao (communicative action) của Harbermas - với tư cách là một lý thuyết triết học quan tâm đến hành vi giao tiếp giữa hai hay nhiều người với nhau mà mục đích cuối cùng hướng đến sự thông hiểu, đồng thuận với nhau - sẽ cung cấp một góc nhìn, đồng thời cũng là công cụ giúp cho con người nhìn nhận các vấn đề truyền thông hiện nay một cách đa chiều hơn, rộng hơn từ đó con người có thể cẩn trọng hơn và chắt lọc được những thông tin cần thiết cho bản thân từ vô vàn những thông tin trôi nổi trên mạng lưới truyền thông.
Um relato de experiência no ensino de ciências na modalidade Proeja em período de pandemia no Instituto Federal Farroupilha Campus Panambi
Authors: Costa Carolina Farias da , Borsekowsky Alana Rafaela , Ernst Daniela Carolina
Published: September 2021

O PROEJA (Educação de Jovens e Adultos- profissionalizante) é uma política pública que foi instaurada com o objetivo de superar os dados encontrados. O programa tem por  objetivo oferecer oportunidades educacionais para adultos e  jovens trabalhadores, que ainda não finalizaram o ensino fundamental ou médio, com a oportunidade de realizar um curso técnico, e assim habilitá-los e prepará-los para uma profissão.Devido ao surto do vírus da COVID-19 no início do ano de 2020, as instituições de ensino do país foram obrigadas a se adaptarem ao Ensino Remoto Emergencial (ERE) e a buscar maneiras para que o processo de ensino e de aprendizagem ocorresse nessa modalidade, que era, até então, desconhecida. Este texto partilha o relato de experiências de duas graduandas do curso de Licenciatura em Ciências Biológicas do Instituto Federal Panambi que realizaram seus estágios em uma turma de PROEJA da mesma instituição, de maneira remota no segundo semestre de 2020.
Tecnologías de remoción de plaguicidas presentes en aguas
Authors: Sarria-Villa Rodrigo Andrés , Gallo-Corredor Jose António , Humberto Pérez Edier
Published: September 2021

Los plaguicidas son conocidos por ser un tipo de sustancias químicas perjudiciales a la humanidad, su desarrollo y aplicación para la protección de las plantas es ahora una medida integrante del sistema de producción vegetal a nivel global. Nueve de las doce sustancias químicas orgánicas más peligrosas y persistentes conocidas sobre el planeta son plaguicidas y sus derivados. Debido a su constante presencia en el medio ambiente, su determinación y cuantificación es realizada principalmente empleando métodos cromatográficos con tratamientos previos de matriz. Gran parte de los plaguicidas tienen como destino final las fuentes hídricas, contaminando y afectando este valioso recurso. Debido a la fuerte naturaleza recalcitrante de los plaguicidas, se han planteado diferentes procesos de descontaminación, dentro de los que se incluyen la precipitación, procesos electroquímicos, intercambiadores iónicos, tratamientos biológicos, procesos avanzados de oxidación, tratamientos con membrana y adsorción, entre otros.
Sistem Monitoring Panel Surya Secara Realtime Berbasis Arduino Uno
Authors: Pratama Dhelmiga , Asnil Asnil
Published: September 2021

Pemantauan terhadap performa panel surya sangat perlu dilakukan untuk menilai kinerja sebuah panel surya pada kondisi lingkungan yang nyata. Penelitian ini bertujuan memberikan suatu teknik baru pemantauan secara langsung dan real time untuk arus, tegangan, suhu, temperature dan radiasi matahari. Untuk memenuhi keperluan tersebut, sistem monitoring performa panel surya yang dirancang dilengkapi dengan sensor pengukur arus, tegangan, suhu, temperature dan radiasi matahari yang telah dikalibrasi, system monitoring dengan menggunakan PLX DAQ yang diintegrasikan ke Microsoft Excel. Perancangan sistem berbasis mikrokontroler Arduino Uno ini dihubungkan ke computer. Hasil dari sistem monitoring ini adalah pengukuran dari setiap sensor dapat diproses secara langsung dan ditampilkan dalam bentuk grafik pada kondisi real time serta dapat memonitor performa tersebut. Informasi mengenai tegangan dan arus dari panel surya yang dikumpulkan pada kondisi real time dapat diperoleh langsung melalui dokumen Excel yang datanya didapatkan dari database. Fasilitas ini memberikan kemudahan untuk pengolahan data selanjutnya.
Validitas Modul Elektronik untuk Mata Kuliah Pengukuran dan Instrumen
Authors: Agung Muhammad , Eliza Fivia
Published: September 2021

Penelitian ini dilatarbelakangi oleh terbatasnya media pembelajaran yang menunjang pembelajaran daring pada mata kuliah Pengukuran dan instrumen di Jurusan Teknik Elektro FT UNP. Mata kuliah ini merupakan mata kuliah dasar yang sangat penting untuk menunjang mata kuliah lain di semester berikutnya. Dari hasil observasi diketahui bahwa dalam pembelajaran daring yang menggunakan LMS mahasiswa kesulitan dalam menemukan referensi untuk menyelesaikan tugas yang diberikan. Hal ini terjadi karena masih terbatasnya sumber belajar online yang dapat diakses oleh para mahasiswa untuk mata kuliah ini. Oleh karena itu penelitian ini bertujuan untuk menghasilkan modul elektronik yang valid untuk mata kuliah pengukuran dan instrument. Modul elektronik yang dikembangkan diuji validitasnya dengan menggunakan angket validitas dan meminta pendapat ahli media dan ahli materi, lalu dianalisis dengan rumus uji validitas. Berdasarkan hasil analisis rata-rata angket validitas diperoleh tingkat validitas modul elektronik adalah termasuk kategori valid baik sebagai media pembelajaran maupun dari sisi materi. Maka dapat disimpulkan bahwa modul elektronik untuk mata kuliah Pengukuran dan Instrumen termasuk kategori valid dan dapat digunakan sebagai referensi dalam proses pembelajaran
Perceptions of Tenure and Promotion Guidelines and Criteria Among Athletic Training Doctoral Students
Authors: Mazerolle Stephanie , Bowman Thomas , Klossner Joanne
Published: September 2021

Purpose: Evidence suggested that athletic training doctoral candidates are being socialized through a variety of formal and informal experiences to prepare them for roles in higher education. It is unclear, however, if they are aware of the expectations associated with tenure and/or promotion which are necessary for transition into higher education. Perceptions of tenure and promotion among doctoral students preparing to enter the athletic training professoriate were investigated. Methods: Twenty-four students (16=females, 8=males, average age=28±3 years) completed one-on-one telephone interviews. Data were analyzed using a general inductive approach, with a peer review and multiple analyst triangulation completed for rigor. Results: Four primary themes emerged from the data: 1) there is a limited understanding of the guidelines and criteria for tenure and promotion, 2) knowledge of guidelines and criteria is perpetuated by mentoring, 3) research/scholarship is perceived as paramount for success, and 4) the belief that skills gained, regardless of the domain of tenure, can facilitate success in others. Conclusions: The findings suggest that doctoral students in athletic training are partially aware of the guidelines for tenure, but could benefit from additional mentoring.
Reducing the Rate of Late Stage Breast Cancer Through Effective Health Communication: An Opinion Piece
Authors: Hendricks-Sturrup Rachele
Published: September 2021

Purpose: Health and illness are traditionally characterized and treated differently across various ethnic groups, which encourages American health systems serving these diverse populations to explore culturally competent and safe ways to effectively reduce illness within such populations. Certain ethnic groups of women in the United States (US) bear greater risk of late stage breast cancer because of various circumstances, which include but are not limited to a lack of insurance or underinsurance and discomfort with and/or resentment toward the US healthcare system. The dominant culture and the social aspects of the modern American health system often and most favorably serve the European American population as compared to the non-European American population. When non- European American female patients are given the opportunity to understand, afford, and adhere to breast cancer prevention techniques, as a result of culturally competent and safe health communication, there is greater potential to control healthcare spending and costs, improve breast cancer outcomes and risks, and produce healthier female populations. This narrative explores communication routes that practice cultural sensitivity and foster cultural safety whilst providing healthcare to non- European American populations, so as to help reduce the rate of late-stage female breast cancer in the US.
A Review of the Use of Massive Open Online Courses (MOOCs) in Medical Imaging Education
Authors: Clark Kevin , Vealé Beth , Watts Lynette
Published: September 2021

Purpose: The purpose of this review article is to describe the benefits and challenges associated with massive open online courses (MOOCs) and to discuss the implications specific to medical imaging education and training. Methods: Peer-reviewed journal articles pertaining to MOOCs in higher education were analyzed to identify commonalities, relationships, and possible gaps in the literature. Results: Analysis revealed several repetitive themes and concepts regarding the use of MOOCs in higher education: theory of connectivism, instructors’ and students’ perspectives, and benefits and challenges. Implications for medical imaging education and training were also discussed. Conclusions: As web-based education and technology integration continue to increase, innovative approaches, such as MOOCs, will continue to develop. As higher education institutions continue experimenting with MOOCs, opportunities to engage individuals as lifelong learners will rise. Medical imaging students can use MOOCs to refine skills to prepare for an upcoming course along with the possibility of completing continuing education requirements.
The Use of Simulation Training to Improve Knowledge, Skills, and Confidence Among Healthcare Students: A Systematic Review
Authors: Alanazi Ahmad , Nicholson Nannette , Thomas Sheila
Published: September 2021

Purpose: The use of simulation has become a routine part of education and training for health professionals in many health education facilities. The increased awareness of patient safety and recent advances in technology are the main incentives to use simulation to teach and evaluate clinical competencies. The primary purpose of this study was to review the best available evidence (level and quality) for the use of simulation training to improve clinical skills, knowledge, and self-confidence among healthcare students. Method: A systematic review of qualitative and quantitative literature published between 2000 and 2016 was undertaken using databases including PubMed, CINAHL®, and PsycINFO® databases as well as three journal collections within ProQuest. In addition to the database search, the literature search for this study included two additional activities: search results were compared against the bibliographies of the reviewed studies, and Google Scholar was used to search the Internet for relevant publications. Data from studies meeting inclusion criteria was extracted and summarized. The level and strength of evidence was rated for each study. Results: Of 1412 studies identified via the search strategy, 30 met the inclusion criteria for this systematic review. A wide variety of study designs, interventions, measurements, and simulation types were represented. Data for study location, health profession, sample size, purpose, simulation type, intervention, and outcome measure are presented via evidence tables by authors. Statistically and/or clinically significant improvements in knowledge, skills, and/or self-confidence following simulation training were reported. Primary and secondary outcomes were identified and summarized. Conclusions: Evidence demonstrates that the use of simulation in student education significantly improves knowledge, skills, and self-confidence. A quality improvement framework of five best practice components for application in simulation research is proposed, generated from the findings of this review. Future research employing high quality research designs focusing on debriefing practices, interprofessional education applications, validation of outcome measures, student satisfaction, and long-term information retention will contribute to the growing body of literature supporting best practices for simulation training in healthcare.
Plyometric Exercises from a Knee Anterior Cruciate Ligament Prevention Program on the Rate of Isometric Torque Development and Vertical Jump Height
Authors: Doeringer Jeffrey , Johnson Sam , Norcorss Marc , Hoffman Mark
Published: September 2021

Purpose: Plyometric exercises are incorporated in anterior cruciate ligament injures of the knee (ACL) injury prevention programs that have effectively decreased risk factors for anterior cruciate ligament injures of the knee injuries, but the impact on the rate of isometric torque development of the musculature of the knee is unclear. The purpose of this study was to determine the effects of a 6-week plyometric program pulled from a commonly utilized anterior cruciate ligament injures of the knee injury prevention program on rate of isometric torque development (RTD) in healthy active females. Methods: College-aged participants were randomly split into two different groups (16-plyometric training and 15-control). Plyometric exercises included 180° jumps, bounding for distance, bounding in place, broad jump-stick, cone jumps, hop - hop stick, jump into bounding, jump - jump - jump vertical jump, mattress jumps, scissors jump, single-legged jumps for distance, squat jumps, step-jump up-down-vertical jump, tuck jumps, and wall jumps. Participants in the training group performed the exercises three times a week on alternating days, for 30-minute sessions. All participants performed a vertical jump measurement and completed maximum voluntary isometric contractions (MVICs) of ankle plantar flexion, knee extension, and knee flexion rate of torque development. Results: There was a main effect of session for plantar flexion rate of torque development time windows and vertical jump. The analysis revealed no significant differences for group by session interactions for any other rate of torque development measurement or the vertical jump. Conclusions: Plyometric exercises utilized from an anterior cruciate ligament injures of the knee injury prevention program did not change lower body isometric torque development or vertical jump height of active females. Since the plyometric training did not improve vertical jump, the training may not have been performed vigorous enough for the participants to cause a neuromuscular adaptation. Based on findings, 6-weeks of plyometric training from an isolated ACL injury prevention program should not be used to increase the vertical jump of healthy, active females.
Parasites with zoonotic potencial in dog feces found in public places in the city of Barueri, SP, Brazil
Authors: Fernandes dos Santos André Luís , de Queiroz P. Oliveira Carolina , Ribeiro Guimarães Maria Cristina , Ribeiro Dourado Patrícia
Published: September 2021

Dogs are responsible for many zoonosis. This paper presents some zoonosis transmitted by fecal parasites. Twenty fecal pools were collected from four different sites (five pools per site) between June and August 2015. Soon after retrieval, samples were sent to the laboratory for parasite research by the modified Wisconsin sugar flotation method. 85% of the analyzed samples contained eggs of parasites. The most frequent were eggs of Ancylostoma sp (100% of samples), followed by Toxocara canis and Giardia sp (17.6) and Trichuris vulpis and taenids (5.9%). These results indicate the need for parasitic control of dogs in the region in order to reduce environmental contamination and the risk of zoonosis.
Conservative treatment for bilateral tibiotarsal joint hyperextension in dogs – a report of two cases
Authors: da Silva Sobrinho Fernando B. , Oliveira Santos Cássia Regina , Barbosa Lemos Lopes Ítalo , Cavalcanti de Andrade Andrezza , Nunes Ramos Jamilly , Domingues Gomes Ana Amélia , Soares Silva Alexandre Redson
Published: September 2021

Tibiotarsal joint hyperextension is a hereditary pathology of rare incidence in companion animals, which affects the pelvic limbs. It is characterized by hyperextension of tibiotarsal joint, as well as by difficulty in flexing the affected limb. In some cases it can also affect the knee joint. Treatment choice and prognosis are critically dependent on early diagnosis, which increases favorable results. A Yorkshire Terrier pup and a Schnauzer pup with locomotion deficiency in the pelvic limbs were diagnosed with tibiotarsal joing hyperextension. Conservative treatment with passive and active physiotherapy and bandages was started, and provided good functional recovery without the need of surgical intervention.
Деякі питання збереження енергоресурсів при теплопостачанні у будинках
Authors: Fеdоrоvа Е.Yu.
Published: September 2021

У статті розглядаються проблеми, пов’язані з енергозбереженням та енергоефективністю енергоресурсів. Дуже тривожним є факт, пов'язаний з дефіцитом основних енергоресурсів, зростанням вартісного їх видобутку, а також з глобальними екологічними проблемами. У статті вирішуються проблеми економії енергоресурсів при опаленні приміщень. Розроблено функціональну схему системи автоматичного регулювання опалення для окремо взятої квартири багатоквартирного будинку з автономним опаленням
Повышение эффективности и удельной мощности открытых газотурбинных установок. 1. Цикл с расширением газов в турбине до давления ниже атмосферного и цикл с предварительным охлаждением воздуха, всасываемого компрессором
Authors: Vasserman A.A. , Slyn`ko A.G.
Published: September 2021

Предлагаются новые термодинамические циклы открытых газотурбинных установок (ГТУ): цикл с расширением газов в турбине до давления ниже атмосферного и цикл с предварительным охлаждением воздуха, всасываемого компрессором. Расчёты показали, что работа и термический КПД ГТУ при расширении газов в турбине до давления ниже атмосферного (0,05 МПа) повышаются на 19,7 и 24,5 % соответственно. В цикле с предварительным охлаждением воздуха до температуры минус 30 ºС работа цикла повышается на 17,6 %. Термический КПД при этом не изменяется, так как степень повышения давления при этом та же. Учитывая, что процессы охлаждения газов и воздуха в предлагаемых циклах осуществляются с помощью утилизационной холодильной установки («бесплатны»), некоторые конструктивные усложнения таких модифицированных ГТУ оправдываются такими существенными повышениями основных характеристик циклов.