bluuebunny/crossref_metadata_2025 huggingface dataset:
MULTIPLE CRITERIA APPROACH APPLIED TO DIGITAL TRANSFORMATION IN FASHION STORES: THE CASE OF PHYSICAL RETAILERS IN SPAIN
Authors: Llorens Miguel , Carrasco Ramon , Bueno Itzcóatl , Herrera-Viedma Enrique , Morente-Molinera Juan Antonio
Published: March 2022

In a very open competitive context where pure online players are consistently gaining market share, the use of digital devices is a steady trend which is penetrating physical retail stores as a tool for retailers to improve customer experience and increase engagement. This need has increased with the COVID-19 pandemic as electronic devices in physical stores reduce the contact between people providing a greater sense of health safety, hence improving the customer experience. This work develops a multiple-criteria decision-making model for retailers who want to digitize their physical stores, providing a systematic approach to manage investment priorities in the organization. Important decisions should involve all different areas of the organization: Finance, Clients, Internal Processes and Learning & Growth departments. This strategic decision can be made hierarchically to obtain consistent decisions, also the use of the Order Weighted Average operator allows for alternative scenarios to be presented and agreed among the different areas of the business. The authors develop a use case for a Spanish fashion retailer. In the most widely agreed scenario the preferred devices were more technologically complex and expensive, while in the scenarios where the head of Finance is more predominant, cheaper and simpler devices were selected.
The Impact of Different rs3917538 Genotypes with the PON-1 Activity, Atherosclerosis Severity in Patients of Coronary Atherosclerosis
Authors: Habash Noor K. , Abdul-Rasheed Omar F. , Hamid Moayed B.
Published: March 2022

Background: Coronary atherosclerosis is one of the coronary artery diseases (CAD) responsible for a significant percentage of mortality and morbidity in Iraqi subjects. Atherosclerosis compresses about 17 million death cases; 45% are under the age of 70. The improvement in atherosclerosis disease management paly a critical role in preventing this disease; despite that, new risk factors have been studied, including genetic studies. Many polymorphisms have been associated with coronary atherosclerosis in different ethnic populations. Paraoxonase is an enzyme located on HDL in serum. PON acts as a protective factor or agent against oxidative modification of LDL, suggesting that it could play an essential and influential role in atherosclerotic processes prevention.
Objective: To evaluate the rs3917538 genotypes in the PON-1 gene associated with the coronary atherosclerosis risk and the effect of this single nucleotide polymorphism on the serum activity of PON-1 and the severity of coronary atherosclerosis.
Methods: A case-control study included sixty patients diagnosed with coronary atherosclerosis and sixty healthy volunteers diagnosed with angiography examination. The study was carried out during the period from February 2019 till June 2020. Serum PON-1 was measured by fluorometric technique, and the genetic assessment was by RT-PCR technique.
Results: The activity for PON-1 in patients was significantly lower than controls; the median activity of PON-1 in controls was 197.32 mU/ml, which was higher than that of patients (median =163.46 mU/ml). There was an impact of rs3917538 genotypes on the severity of the disease, P=0.041. The rs3917538 genotypes have no association with the risk of coronary atherosclerosis and the activity of PON-1.
Conclusion: The measurement of serum PON-1 activity may help in the diagnosis  of coronary atherosclerosis patients. The rs3917538 genotypes in the PON-1 gene among the patient’s group impact the severity of coronary atherosclerosis.
The Effect of Green Coffee on Blood Pressure, Liver and Kidney Functions in Obese Model Rats
Authors: Yusni Yusni , Yusuf Hanifah
Published: March 2022

BACKGROUND: The effect of green coffee (GC) on blood pressure (BP) is still debated, but GC is thought to improve liver and kidney function. AIM: This study aimed to analyze the effect of the GC intervention on BP, liver, and kidney functions in obese model rats. METHODS: The research was a pre-clinical trial of pretest-posttest with control group design. Animals were divided into four groups: obese rats (G1), obese rats and GC (G2), obese rats and physical exercise (PE) (G3), and a combination of interventions (PE+GC) (G4). Data analysis used an independent sample t-test and analysis of variance; (p < 0.05). RESULTS: There was a different effect of the GC, PE, and PE+GC intervention on BP (186.50 ± 3.45 vs. 91.33 ± 1.96 p = 0.001*; 189.17 ± 2.93 vs. 119.50 ± 3.73 p = 0.001*; 191.8 3 ± 2.64 vs. 98.83 ± 3.76 p = 0.001*) in obese rats. There was a significant difference in Serum Glutamic Oxaloacetic Transaminase (SGOT) (p=0.001*), Serum Glutamic Pyruvic Transaminase (SGPT) (p = 0.001*), Blood urea nitrogen (BUN) (p = 0.001*), and Creatinine (p = 0.001*) before and after the intervention in the three groups (G2, G3, and G4). SGOT, SGPT, and Creatinine levels decreased significantly after PE, GC, and PE+GC intervention. On the other hand, BUN levels decreased significantly after GC and its combination intervention. Meanwhile, in the control group and the intervention of PE, it increased significantly. CONCLUSIONS: GC is more effective in lowering BP without causing impaired liver and kidney function in obese rats.
Effect of Standardised Extract Pegagan Embun (Hydrocotyle sibthorpioides Lam.) toward Natural Killer Cell and CD8 Cell Activities on White Male Mice Exposed to H5N1 Virus Antigen
Authors: Afriwardi Afriwardi , Wahyuni Fitratul , Husni Elidahanum , Alianta Aditya Alqamal , Aldi Yufri
Published: March 2022

AIM: Community in Indonesia used pegagan embun (Hydrocotyle sibthorpioides Lam.) to increase endurance. Based on that, the study aimed to determine the effects of pegagan embun extract on natural killer (NK) cells and CD8 cells activities in white male mice exposed to the H5N1 antigen. MATERIALS AND METHODS: As many as thirty-five experimental white male mice were used, divided into seven groups, by varying the time of administration of the H5N1 antigen. Groups I and II, were given the test extract for 7 days and induced H5N1 antigen on days 1 and 7, then evaluated on day 8. Group III was given a test extract for 3 days, then induced antigen on the 4th day and continued with giving the test extract until day 7th. In Groups V and VII, only H5N1 antigen induction on day 1 and evaluated on day 8. Groups IV and VI were given the test extract for 7 and 4 days. The observations examine the activities of NK cells and CD8 cells. The data were analyzed with a one-way analysis of variation method with p = 0.05, then analyzed with Duncan Multiple Range Test. RESULTS AND DISCUSSION: After calculating, the NK cell activity for groups 1 to 7, respectively: 2.12; 2.03; 2.07; 1.87; 1.98; 1.91; and 1.95 ng/mL while for CD8 cell activity 22.23; 24.61; 23.69; 21.10; 19,20; 19.87; and 18.13 ng/mL. The results showed that giving pegagan embun extract to white male mice exposed to the H5N1 antigen increase the activities of NK cells and CD8 cells. CONCLUSION: It concluded that administration of standardized extract of pegagan embun (H. sibthorpioides Lam.) at a dose of 200 mg/kg BW increased NK cells activities and CD8 cells of white male mice exposed to H5N1 virus antigen.
Oxygen nonstoichiometry and magnetic properties of doped manganites La0.7Sr0.3Mn0.95Fe0.05O3-δ
Authors: Kalanda Nikolay A. , Yarmolich Marta V. , Gurskii Alexander L. , Petrov Alexander V. , Zhaludkevich Aliaksandr L. , Ignatenko Oleg V. , Serdechnova Maria
Published: March 2022

In this work, solid solutions of La0.7Sr0.3Mn0.95Fe0.05O3-δ with different oxygen content were obtained by the solid-phase reactions technique. Based on the investigation of the dynamics of changes in the oxygen index (3 – δ) during heating of the samples, the formation of a stressed state in their grains as a result of annealing was established. This results in a decrease in the mobility of oxygen vacancies during the reduction of cations according to the Mn4+ + e– → Mn3+ scheme and explains the decrease of released oxygen amount with an increase of δ as well as the heating rate of the samples. When studying the magnetic properties of the obtained samples, it was found that the temperature dependence of the magnetization obeys the Curie–Weiss law and as the oxygen defficiency increases, the Curie temperature for solid solutions decreases. It was found that the particles are in a frozen ferromagnetic state when measured in the low-temperature region of the М (Т) dependence in “zero-field mode” at Т ˂ ТВ. The presence of ferromagnetism at Т ˃ ТВ leads to a magnetically ordered state, in which the resulting magnetic moment of the magnetic particle is influenced by thermal fluctuations. When considering the temperature values of the magnetization of lanthanum-strontium manganite samples, it was found that with an increase of temperature in the low-temperature region, magnetic ordering is disturbed due to the excitation of magnons with a quadratic dependence of the energy from the wave vector, the number of which increases in proportion to T3/2. This results in a decrease in the manganite magnetization. The observed temperature dependence of the magnetization measured in the “field-cooling mode” was approximated taking into account the quadratic and non-quadratic dispersion laws of the magnon spectrum.
Complete mitochondrial genome of Conus lischkeanus Weinkauff, 1875 (Neogastropoda, Conidae) and phylogenetic implications of the evolutionary diversification of dietary types of Conus species
Authors: Lee Yucheol , Park Joong-Ki
Published: March 2022

The family Conidae, commonly known as cone snails, is one of the most intriguing gastropod groups owing to their diverse array of feeding behaviors (diets) and toxin peptides (conotoxins). Conus lischkeanus Weinkauff, 1875 is a worm-hunting species widely distributed from Africa to the Northwest Pacific. In this study, we report the mitochondrial genome sequence of C. lischkeanus and inferred its phylogenetic relationship with other Conus species. Its mitochondrial genome is a circular DNA molecule (16,120 bp in size) composed of 37 genes: 13 protein-coding genes (PCGs), 22 transfer RNA genes, and two ribosomal RNA genes. Phylogenetic analyses of concatenated nucleotide sequences of 13 PCGs and two ribosomal RNA genes showed that C. lischkeanus belongs to the subgenus Lividoconus group, which is grouped with species of the subgenus Virgiconus, and a member of the largest assemblage of worm-hunting (vermivorous) species at the most basal position in this group. Mitochondrial genome phylogeny supports the previous hypothesis that the ancestral diet of cone snails was worm-hunting, and that other dietary types (molluscivous or piscivorous) have secondarily evolved multiple times from different origins. This new, complete mitochondrial genome information provides valuable insights into the mitochondrial genome diversity and molecular phylogeny of Conus species.
Standardized Nursing Language: What Does It Mean for Nursing Practice?
Authors: Rutherford Marjorie
Published: March 2022

Use of a standardized nursing language for documentation of nursing care is vital both to the nursing profession and to the bedside/direct care nurse. The purpose of this article is to provide examples of the usefulness of standardized languages to direct care/bedside nurses. Currently, the American Nurses Association has approved thirteen standardized languages that support nursing practice, only ten of which are considered languages specific to nursing care. The purpose of this article is to offer a definition of standardized language in nursing, to describe how standardized nursing languages are applied in the clinical setting, and to explain the benefits of standardizing nursing languages. These benefits include: better communication among nurses and other health care providers, increased visibility of nursing interventions, improved patient care, enhanced data collection to evaluate nursing care outcomes, greater adherence to standards of care, and facilitated assessment of nursing competency. Implications of standardized language for nursing education, research, and administration are also presented.
Transitioning Internationally Educated Nurses for Success: A Model Program
Authors: Adeniran Rita , Rich Victoria , Gonzalez Elizabeth , Peterson Cheryl , Jost Sandra , Gabriel Melanie
Published: March 2022

Internationally Educated Nurses (IENs) are, and will continue to be an important part of the nursing workforce in the United States and throughout the world. They bring a variety of knowledge, skills, and experience to their new practice areas. Although the benefits of their knowledge, skills, and experience can be enhanced by successfully integrating them in the healthcare system of their new country, this may be a challenging process. The transition challenges of IENs are not due to lack of knowledge or clinical skills, but rather are linked to socio-cultural differences, including the structure of the healthcare systems; language subtleties such as use of idioms, acronyms, and abbreviations; and unfamiliarity with their new surroundings. Transitional programs can serve to bridge the practice gaps between IENs’ previous and new experiences. The Hospital of the University of Pennsylvania TIENS (Transitioning Internationally Educated Nurses for Success) Program is presented as a model to help organizations develop programs for IENS to ease their transition into the U.S. healthcare system. This article explains why IENs are a key component of the U.S. nursing workforce now and for the foreseeable future, presents a rationale for transition programs that support successful integration of IENs to the U.S. practice environment, describes a model Transition Program, and advocates for the development of a national policy to standardize transition programs for IENs in the United States.
L’État au secours de la transition agroécologique ? Le cas de l’Inde
Authors: Landy Frédéric , Dorin Bruno
Published: March 2022

L’Inde a connu en 2021 le plus grand mouvement social paysan de son histoire. Celui-ci a réussi à s’opposer, avec succès, aux réformes libérales du marché agricole voulues par le gouvernement Modi. Si cette mobilisation se situe dans la droite ligne de la défense des intérêts de la petite paysannerie contre l’agro-industrie, elle ne manifeste par contre guere d’appétence pour un changement de modèle productif et une transition agroécologique. Analysant les raisons de cette dichotomie, Frédéric Landy et Bruno Dorin explorent, en partant de l’expérience de l’Andhra Pradesh, le rôle que les États locaux peuvent jouer pour faire gagner l’agroécologie.
Étudier à distance ? Réflexions cliniques sur les effets du passage à distance dans le travail étudiant
Authors: Potiron Marie , Ganem Valérie
Published: March 2022

Qu’a signifié pour les étudiant.e.s le passage à distance des enseignements lors de la crise du Covid  ? Quels effets cette profonde modification du travailler a-t-elle eus sur la santé mentale des étudiant.e.s ? Nous tenterons dans cet article un début de réflexion sur ces questions, à partir du double point de vue d’une enseignante chercheuse, impliquée avec certain.e.s de ses étudiant.e.s dans une mini-enquête sur le passage des cours à distance et celui d’une psychologue en poste dans un ssu (service de santé universitaire). Cette réflexion sera l’occasion de s’interroger sur ce qu’est le travail étudiant, tel que la psychodynamique du travail permet de l’analyser, et de mettre en lumière les relations étroites entre le travail des étudiant.e.s et celui de l’ensemble des acteurs de l’université.
Traumatisme et résilience dans le travail : une critique par la psychodynamique du travail
Authors: Duarte Antoine , Rossi-Neves Patricia
Published: March 2022

En s’appuyant sur une recherche clinique et sur les éléments théoriques en psychodynamique du travail, les auteurs tentent de poser des chaînons conceptuels pour une analyse phénoménologique de l’expérience de la souffrance éthique. En outre, une discussion est engagée sur les implications morales et politiques de la mobilisation de l’approche psychotraumatologique et de la référence à la résilience dans les situations où la souffrance éthique est vécue par celles et ceux qui travaillent.
Radially symmetric solutions for a Keller-Segel system with flux limitation and nonlinear diffusion
Authors: Tello J. Ignacio
Published: March 2022

We consider a parabolic-elliptic system of partial differential equations with a chemotactic term in a \begin{document}$ N $\end{document}-dimensional unit ball "\begin{document}$ B $\end{document}" describing the behavior of a biological species "\begin{document}$ u $\end{document}" and a chemical stimuli "\begin{document}$ v $\end{document}". The system presents a sub-linear dependence of "\begin{document}$ \nabla v $\end{document}" in the chemotactic coefficient and a nonlinear diffusive term. The evolution of \begin{document}$ u $\end{document} is described by the equation

   \begin{document}$ u_t - \Delta u^m = - div (\chi u |\nabla v|^{p-2} \nabla v), \quad \mbox{ for } \ m >2, \quad p \in ( 1,2), \quad N \geq 1 $\end{document}

for a positive constant \begin{document}$ \chi $\end{document}. The concentration of the chemical substance \begin{document}$ v $\end{document} satisfies the linear elliptic equation

   \begin{document}$ - \Delta v = u - \frac{1}{|B|} \int_{B} u_0dx. $\end{document}

We consider the radially symmetric case and we prove the local existence of weak solutions for the mass accumulation function under assumption

   \begin{document}$ - \frac{1}{m}+ \frac{1}{N} + 1-\frac{pm}{4(m-1)} \geq 0, $\end{document}

for radial and regular initial data. Additionally, if the constrain

   \begin{document}$ \frac{m }{m- 2} \left[ \frac{pm}{2(m-1)}-1\right] \leq 1 $\end{document}

is satisfied, the solution globally exists in time.
Le corps du texte
Authors: Pagan Martine
Published: March 2022

On dira de l’itinéraire de Martine Pagan qu’il est atypique. Et il est vrai que, dans un monde de plus en plus soumis à la tyrannie des clivages, les multiples approches épistémologiques de sa recherche, ses prises de responsabilités institutionnelles et les transferts entre langues et cultures qui la fascinent prennent rétrospectivement des allures de rêve interdit. Pourtant, ce parcours ne devrait-il pas être celui, naturel, de tout enseignant chercheur en prise sur la complexité du monde ?
Sur le mode de la chronique, cette biographie scientifique suit la constitution d’une méthode intellectuelle, s’enrichissant d’apports variés et des sollicitations de la vie. Elle prouve que la rigueur la plus exigeante ne tord pas forcément le cou à la fantaisie et qu’une certaine liberté d’esprit conduit aux chemins de traverse qui font progresser la recherche.
Ce livre s’ouvre comme une histoire, celle d’une enfant confrontée à la diversité des langues et des cultures. Le récit prend ensuite des allures de roman d’apprentissage, celui d’un personnage qui, tout en accomplissant les exercices requis, continue de ressentir, à l’égard de certains aspects du jeu académique, une irréductible étrangeté. Un ton souvent teinté d’humour nous accompagne au travers d’anecdotes qui ont tissé la vie de grandes institutions. Un recueil de poèmes clôt le volume. Loin d’en être une annexe, il s’impose comme seul langage apte à en faire la synthèse : point d’asymptote entre lucidité et ingénuité assumée.
Preliminary Report on the Train the Brain Project, Part II: Neuroplasticity of Augmented Neuromuscular Training and Improved Injury-Risk Biomechanics
Authors: Grooms Dustin R. , Diekfuss Jed A. , Slutsky-Ganesh Alexis B. , DiCesare Christopher A. , Bonnette Scott , Riley Michael A. , Kiefer Adam W. , Wohl Timothy R. , Criss Cody R. , Lamplot Joseph , Thomas Staci M. , Foss Kim D. Barber , Faigenbaum Avery D. , Wong Phil , Simon Janet E. , Myer Gregory D.
Published: March 2022

Context

Neuromuscular training (NMT) facilitates the acquisition of new movement patterns that reduce the anterior cruciate ligament injury risk. However, the neural mechanisms underlying these changes are unknown.

Objective

To determine the relationship between brain activation and biomechanical changes after NMT with biofeedback.

Design

Cohort study.

Setting

Research laboratory.

Patients or Other Participants

Twenty female high school soccer athletes, with 10 in an augmented NMT group and 10 in a control (no training) group.

Main Outcome Measure(s)

Ten participants completed 6 weeks of NMT augmented with real-time biofeedback to reduce knee injury-risk movements, and 10 participants pursued no training. Augmented neuromuscular training (aNMT) was implemented with visual biofeedback that responded in real time to injury-risk biomechanical variables. A drop vertical jump with 3-dimensional motion capture was used to assess injury-risk neuromuscular changes before and after the 6-week intervention. Brain-activation changes were measured using functional magnetic resonance imaging during unilateral knee and multijoint motor tasks.

Results

After aNMT, sensory (precuneus), visual-spatial (lingual gyrus), and motor-planning (premotor) brain activity increased for knee-specific movement; sensorimotor cortex activity for multijoint movement decreased. The knee-abduction moment during landing also decreased (4.66 ± 5.45 newton meters; P = .02; Hedges g = 0.82) in the aNMT group but did not change in the control group (P > .05). The training-induced increased brain activity with isolated knee movement was associated with decreases in knee-abduction moment (r = 0.67; P = .036) and sensorimotor cortex activity for multijoint movement (r = 0.87; P = .001). No change in brain activity was observed in the control group (P > .05).

Conclusions

The relationship between neural changes observed across tasks and reduced knee abduction suggests that aNMT facilitated recruitment of sensory integration centers to support reduced injury-risk mechanics and improve sensorimotor neural efficiency for multijoint control. Further research is warranted to determine if this training-related multimodal neuroplasticity enhances neuromuscular control during more complex sport-specific activities.
Perceived Instability, Pain, and Psychological Factors for Prediction of Function and Disability in Individuals With Chronic Ankle Instability
Authors: Suttmiller Ashley M. B. , Cavallario Julie M. , Baez Shelby E. , Martinez Jessica C. , McCann Ryan S.
Published: March 2022

Context

Chronic ankle instability (CAI) is associated with residual instability, pain, decreased function, and increased disablement. Injury-related fear has been associated with CAI, although its relationship to other impairments is unclear. The fear-avoidance model is a theoretical framework hypothesizing a relationship among pain catastrophizing, injury-related fear, chronic pain, and disability. It has been useful in understanding fear's influence in other musculoskeletal conditions but has yet to be studied in those with CAI.

Objective

To explore relationships among instability, pain catastrophizing, injury-related fear, pain, ankle function, and global disability in individuals with CAI.

Design

Cross-sectional study.

Setting

Anonymous online survey.

Patients or Other Participants

A total of 259 people, recruited via email and social media, with a history of ankle sprain completed the survey; of those, 126 participants (age = 32.69 ± 4.38 years, females = 84.92%, highly active = 73.81%) were identified as having CAI and were included in the analysis.

Main Outcome Measure(s)

Demographics of gender identity, age, and physical activity level were recorded. Assessments used were the Identification of Functional Ankle Instability questionnaire (instability), the Pain Catastrophizing Scale (pain catastrophizing), the Tampa Scale of Kinesiophobia-11 (injury-related fear), a numeric pain rating scale and activity-based question (pain presence), the Quick Foot and Ankle Ability Measure (ankle function), and the modified Disablement in the Physically Active Scale (disability). Relationships among variables were explored through correlation and regression analyses.

Results

After we controlled for instability and pain, pain catastrophizing and injury-related fear were significantly related to function and disability ratings in individuals with CAI. Together, the variables predicted 48.7% (P < .001) of the variance in function and 44.2% (P < .001) of the variance in disability.

Conclusions

Greater instability, pain catastrophizing, injury-related fear, and pain predicted decreased function and greater disability in those with CAI. These findings are consistent with the hypothesized relationships in the fear-avoidance model, although further investigation is needed to determine causality of these factors in the development of CAI.
Non-alcoholic fatty liver disease
Authors: Abdel-Rahman Rehab F.
Published: March 2022

Non-alcoholic fatty liver disease (NAFLD) denotes a spectrum of fatty liver disease in individuals without significant alcohol consumption. NAFLD is set to be the most common etiology of serious liver diseases in numerous nations when accompanied by obesity and type 2 diabetes. It is further histologically categorized into the non-alcoholic fatty liver (NAFL; steatosis without hepatocellular injury) and non-alcoholic steatohepatitis (NASH) which is characterized by the coexistence of hepatic steatosis and inflammation and is accompanied by hepatocyte injury (ballooning), either with or without fibrosis. NAFL is considered the benign and reversible stage arising from the excessive accumulation of triglycerides in hepatocytes. However, NASH is a more progressive stage of NAFLD, due to the increased risks of evolving more serious diseases such as cirrhosis, hepatocellular carcinoma. This concept, however, has been lately challenged by a hypothesis of multiple parallel hits of NAFLD, in which steatosis and NASH are separate entities rather than two points of the NAFLD spectrum, not only from a set of histological patterns but also from a pathophysiological perspective. The current review highlights the epidemiology and pathophysiology of NAFLD, and its progression towards steatohepatitis, with special focus on the novel imminent therapeutic approaches targeting the molecular aspects and the pathogenic pathways involved in the development, and progression of NAFLD.
Hilbert rings with maximal ideals of different heights and unruly Hilbert rings
Authors: Azimi Y.
Published: March 2022

Let
$f:R\to S$
be a ring homomorphism and J be an ideal of S. Then the subring
$R\bowtie ^fJ:=\{(r,f(r)+j)\mid r\in R$
and
$j\in J\}$
of
$R\times S$
is called the amalgamation of R with S along J with respect to f. In this paper, we characterize when
$R\bowtie ^fJ$
is a Hilbert ring. As an application, we provide an example of Hilbert ring with maximal ideals of different heights. We also construct non-Noetherian Hilbert rings whose maximal ideals are all finitely generated (unruly Hilbert rings).
ĐÁNH GIÁ HIỆU QUẢ CỦA GỐI CON LẮC MA SÁT ĐÔI SỬ DỤNG TRONG CÔNG TRÌNH CÁCH CHẤN THẤP TẦNG
Authors: NGUYỄN VĂN NAM
Published: March 2022

Cách chấn đáy được biết là một kỹ thuật điều khiển kết cấu bị động. Nó mang lại hiệu quả thiết kế kháng chấn cao so với những giải pháp thiết kế truyền thống. Gối con lắc ma sát đôi (Double Friction Pendulum, DFP) là một thiết bị cách ly dao động, được sử dụng rất phổ biến trong kỹ thuật cách chấn đáy ở nhiều nước phát triển thời gian gần đây. Bài báo này đánh giá chi tiết hiệu quả giảm chấn của gối DFP sử dụng trong những công trình thấp tầng chịu động đất. Nghiên cứu được tiến hành bằng việc phân tích một mô hình đơn giản kết cấu nhà 5 tầng được cách chấn bằng gối DFP, chịu 21 băng gia tốc nền khác nhau bằng ngôn ngữ Matlab. Kết quả phân tích cho thấy hiệu quả giảm chấn của dạng gối này là rất tốt và sự thích nghi cao của nó với nhiều băng gia tốc nền có đặc trưng khác nhau. Bên cạnh đó, ảnh hưởng của hệ số ma sát và sự va chạm xảy ra bên trong gối do dịch chuyển ngang lớn cũng được ước lượng.
ĐÁNH GIÁ TÍNH KHẢ THI CỦA PHƯƠNG PHÁP THÚC ĐẨY ĂN MÒN CỐT THÉP TRONG KẾT CẤU BÊ TÔNG CỐT THÉP BẰNG DÒNG ĐIỆN
Authors: NGUYỄN THỊ HẢI YẾN  , BÙI VĂN HỒNG LĨNH
Published: March 2022

Ăn mòn cốt thép trong kết cấu bê tông cốt thép (BTCT) là một trong các nguyên nhân chính gây hư hỏng công trình BTCT. Vô số các nghiên cứu, thực nghiệm lẫn mô phỏng, được thực hiện nhằm đánh giá các yếu tố ảnh hưởng cũng như cơ chế của quá trình ăn mòn BTCT. Từ đó, các biện pháp phù hợp nhằm gia tăng độ bền và tuổi thọ công trình được đề xuất. Tuy nhiên, ăn mòn cốt thép là một quá trình lâu dài, có thể kéo dài hàng chục năm. Do đó, các phương pháp thúc đẩy ăn mòn nhằm rút ngắn thời gian thí nghiệm là yêu cầu thiết yếu. Sử dụng dòng điện là một trong những phương pháp phổ biến dùng để thúc đẩy quá trình ăn mòn trong BTCT. Tuy nhiên, mức độ tin cậy của phương pháp này trong việc mô phỏng cơ chế ăn mòn tự nhiên là vấn đề đáng tranh cãi. Trong nghiên cứu này, mức độ chính xác của phương pháp này nhằm thúc đẩy ăn mòn trong BTCT sẽ đánh giá thông qua các thay đổi vi mô trên lớp bảo vệ cốt thép.
GIẢI PHÁP CHUYỂN ĐỔI TỪ GIÁ TRỊ CBR SANG MÔ ĐUN ĐÀN HỒI TRONG TÍNH TOÁN THIẾT KẾ KẾT CẤU ÁO ĐƯỜNG MỀM
Authors: LÊ TÂN
Published: March 2022

Tính toán trị số mô đun đàn hồi của nền (E0) là công việc thường xuyên trong khảo sát thiết kế đường ô tô. Giá trị E0 đóng vai trò rất quan trọng đối với chất lượng của mỗi đồ án thiết kế. Tuy nhiên, thực tế không phải lúc nào cũng có thể xác định được giá trị E0. Trong những trường hợp này, việc thiết kế kết cấu áo đường sẽ gặp nhiều khó khăn và trở ngại. Bài báo trình bày kết quả nghiên cứu xác định mô đun đàn hồi của đất nền thông qua giá trị sức chịu tải của vật liệu – CBR nhằm tháo gỡ vướng mắc mà thực tế đang gặp phải. Kết quả thu được sai số giữa E0 - xác định thông qua giá trị CBR và E0 đo thực tế là 5,2 % ÷ 6,4 %.
VỐN XÃ HỘI VÀ VẤN ĐỀ NÂNG CAO VỐN XÃ HỘI TRONG GIÁO DỤC ĐẠI HỌC Ở VIỆT NAM HIỆN NAY
Authors: ĐỖ THỊ HIỆN
Published: March 2022

Trong quá trình phát triển đất nước hiện nay, Việt Nam đang đứng trước những triển vọng và thách thức của một giai đoạn phát triển mới, đòi hỏi chúng ta phải biết huy động và phát huy mọi nguồn lực. Vốn xã hội là một trong những yếu tố văn hóa có đóng góp quan trọng trong sự phát triển đất nước nói chung, sự nghiệp giáo dục nói riêng. Vì vậy, để nâng cao chất lượng giáo dục nói chung, để đào tạo một sinh viên đại học vừa nắm vững kiến thức chuyên môn, vừa trang bị cho mình những kỹ năng cần thiết sau khi ra trường thì ngoài vốn tài chính, vốn vật chất, vốn con người thì cần tính đến cả vốn xã hội. Trong bài viết này, tác giả nghiên cứu vai trò của vốn xã hội đối với quá trình học tập của sinh viên và yêu cầu nâng cao vốn xã hội trong giáo dục đại học ở Việt Nam hiện nay.
MỘT SỐ HÌNH THỨC LỪA ĐẢO ĐỐI VỚI SINH VIÊN TẠI THÀNH PHỐ HỒ CHÍ MINH HIỆN NAY: NHẬN DIỆN VÀ GIẢI PHÁP
Authors: LÊ THANH HÒA  , HỒ VĂN ĐỨC  , NGUYỄN XUÂN HỒNG
Published: March 2022

Hiện nay, các hình thức lừa đảo diễn ra phổ biến tại các thành phố lớn ở Việt Nam, trong đó có Thành phố Hồ Chí Minh (TP. HCM). Chúng ngày càng tinh vi với những thủ đoạn rất khó nhận biết. Bên cạnh những hình thức lừa đảo diễn ra một cách công khai, còn xuất hiện nhiều hình thức lừa đảo sử dụng công nghệ cao. Sinh viên của các trường đại học, cao đẳng tại TP. HCM là đối tượng mà tội phạm lừa đảo đang hướng đến, bởi lẽ, đa số sinh viên có sự thay đổi về môi trường sống khi đến TP.HCM học tập, cộng thêm sự thiếu hiểu biết về các hình thức lừa đảo, cho nên dễ trở thành nạn nhân của những hình thức lừa đảo này. Vì vậy, công tác tuyên truyền, phổ biến về những thủ đoạn, hình thức lừa đảo đối với sinh viên là rất cần thiết nhằm giúp sinh viên chủ động phòng tránh chúng. Trong phạm vi bài báo này, chúng tôi tập trung phân tích, làm rõ một số hình thức lừa đảo đối với sinh viên tại TP. HCM hiện nay, từ đó, đề xuất một số giải pháp chủ yếu giúp sinh viên phòng tránh những hình thức lừa đảo này một cách hiệu quả và an toàn.
ĐẢNG CỘNG SẢN VIỆT NAM LÃNH ĐẠO ĐỔI MỚI CĂN BẢN, TOÀN DIỆN GIÁO DỤC VÀ ĐÀO TẠO TRONG THỜI KỲ ĐẨY MẠNH CÔNG NGHIỆP HÓA, HIỆN ĐẠI HÓA TỪ NĂM 1996 ĐẾN NĂM 2021
Authors: ĐẶNG THỊ MINH PHƯỢNG
Published: March 2022

Ngay từ khi ra đời, Đảng Cộng sản Việt Nam luôn quan tâm sâu sắc đến giáo dục và đào tạo. Trong thời kỳ đẩy mạnh công nghiệp hóa, hiện đại hóa, nhận thức rõ vai trò của giáo dục và đào tạo đối với sự phát triển của đất nước, Đảng Cộng sản Việt Nam luôn coi giáo dục và đào tạo là “quốc sách hàng đầu”, là “khâu đột phá”, là yếu tố quyết định sự phát triển nhanh và bền vững. Bài viết tập trung phân tích và làm rõ những quan điểm của Đảng Cộng sản Việt Nam về giáo dục và đào tạo, thành tựu và hạn chế của giáo dục và đào tạo, đề xuất một số giải pháp nhằm tiếp tục đổi mới căn bản, toàn diện giáo dục và đào tạo theo tinh thần Nghị quyết Đại hội đại biểu toàn quốc lần thứ XIII của Đảng Cộng sản Việt Nam.
TƯ TƯỞNG CƠ BẢN VỀ GIÁO DỤC CỦA NHO GIÁO QUA MỘT SỐ NHÀ NHO TIÊU BIỂU
Authors: PHẠM THỊ LAN
Published: March 2022

Nho giáo là học thuyết chính trị - xã hội do Khổng Tử sáng lập ở Trung Quốc thời Xuân Thu – Chiến Quốc và được du nhập vào Việt Nam cách đây khoảng hơn hai ngàn năm. Từ một học thuyết đề cao yếu tố đạo đức hơn pháp luật, thiết lập trật tự xã hội trên cơ sở giáo dục, giáo huấn con người để nó có kiến thức về đạo của thánh hiền mà tuân thủ vô điều kiện vào tầng lớp thống trị, Nho giáo đã được chính quyền đô hộ phương Bắc sử dụng làm công cụ thống trị thuộc địa,mục đích cột chặt sự lệ thuộc của nhân dân ta vào nhà Hán. Mặt khác, trong quá trình tồn tại và tiếp biến đó, Nho giáo đã có sự biến đổi và tham gia vào quá trình hình thành các giá trị truyền thống của Việt Nam. Trong giới hạn bài viết, tác giả chỉ tập trung nghiên cứu quan điểm giáo dục thông qua một số nhà Nho tiêu biểu nhằm làm rõ một số nhận định trong quan điểm giáo dục của Nho giáo.
Euro-Asia Comparative Study of Logistics Cost
Authors: Tippayawong K. Y. , Veyrat-Parisien K.
Published: March 2022

This study aims to describe and compare infrastructure systems of Asian and European countries. The first part is a survey to show similarities and differences between the two systems. Comparison between transportation costs is made. Road and air transports are studied, starting from Paris for Europe and from Bangkok for Asia to other cities within their respective continents. It was shown that it is not possible to rank in one part Asian countries and in second part European countries. It is better to rank Asian and European countries together because they represent the same level of development in one hand and the emerging countries in the other. Freight transport has been shown to be cheaper in Asia than in Europe, even if the price depends on destination. However, border crossing is more expensive in Asia than in European Union.
Design and Development of Caged Ball Heart Valve Using Solid Works
Authors: Vidyasagar K.E.Ch. , N. Ravi Varma
Published: March 2022

Currently, over 2, 90,000 heart valve surgeries are performed worldwide annually and that number is estimated to triple by 2050. Even though patients with prosthetic valves lead a life relatively free from symptoms, problems like physiological complications and valve failure are significant. To date, all mechanical heart valves are plagued with complications associated with hemolysis and coagulation. These complications are believed to be associated with non-physiological blood flow patterns in the vicinity of the artificial heart valves. The geometry of the valve prosthesis with respect to the mitral valve annulus may significantly affect the flow dynamics in the human heart. It is thus essential to assess the hemodynamics of mitral prosthetic caged ball valve to improve the design of the device. This research work presents a 3D model of the left human heart with optimized mitral caged ball valve engineered by a computational tool (SolidWorks 2009). The performance of the valve like hemodynamics across the valve, stress analysis and physical properties like mass, surface area, etc. is assessed virtually. This limits the need to perform extensive, costly and timeconsuming in-vitro and animal tests. Thus optimization of the caged ball heart valve design facilitates reduction of flow-induced thrombogenicity and reduces the need for post-implant anticoagulants.
Design and Implementation of a High Precision Time Synchronization Method for Borehole-surface Microseismic Monitoring
Authors: Zhu Yadongyang , Wei Wenhao
Published: March 2022

Borehole-surface monitoring can effectively improve the accuracy of the microseismic event location. It is necessary to strictly synchronize the acquisition time of borehole and surface monitoring nodes. However, the synchronization signal transmission through the logging cable will cause a delay. In this paper, a calibration method designed to compensate for the deviation of time synchronization due to long-distance transmission on the logging cable. First, the transmission delay of the pulse per second (PPS) is measured in the delay measurement stage. The delay from the global positioning system (GPS) module to all monitoring nodes can get in sequence. Second, In the delay compensation stage, each monitoring node is delayed for a particular time to ensure that all nodes start working simultaneously. Finally, a high-precision clock source is designed to drive the analog-to-digital converter (ADC) to avoid the crystal oscillator’s accumulated error. To verify the accuracy of the calibration method, the modules were tested separately. The length of the logging cable used is 3000 meters. Through experimental verification, the method in this paper can be used to accurately control the time synchronization of different monitoring nodes in the borehole and on the surface within 1us.
Theoretical Model Study on Chemical Compositions Affecting the Space Launch Vehicles
Authors: Ragul MS , Prakash Vishnu , Arshiya G , Mishra Ankit Kumar
Published: March 2022

In this paper we clearly discussed about composition of chemical substances that affects the launch vehicle in ground station as well as atmospheric conditions. During the rocket-launching the large amount of inhalation of an exhaust gas released and it majorly affects the surface of the launch pad as well as the atmosphere. In rocket, the combustion produces huge number of hot gases with high temperature and pressure. This hot gas passes into the nozzle and accelerates, that time hot cloud is formed in the ground station which composed of (CO2) Carbon dioxide, (HCl) Hydrogen chloride, and carbon monoxide (CO). These hot gases not only affect the ground surface but also the atmospheric layers, will see how it’s affecting the launch vehicle as well as to protect the environment from air
pollution affected by emission of gases from different types of rockets and spacecrafts
Preparación física para deportistas de escalada de competición modalidad dificultad, ambos sexos
Authors: Toaquiza Villagómez Diana Lizbeth , Guallichico Logacho Salma Abigail , Sotomayor Mosquera Patricio Ramiro
Published: March 2022

La preparación física es parte esencial del proceso de dirección del entrenamiento deportivo, cuyo objetivo es mejorar el potencial funcional del organismo del deportista, incluyendo sus cualidades físicas. La escalada deportiva requiere procesos especializados de preparación física, siendo útil determinar los criterios teóricos de especialistas que sirva de base teórica y metodológica para establecer prospectivamente planes de entrenamiento óptimos. En tal sentido, se propone como objetivo de la investigación analizar indicadores teóricos mediante consulta a especialistas enfocados en la preparación física para deportistas de escalada deportiva de competición, modalidad dificultad, ambos sexos. La investigación tiene un enfoque descriptivo-explicativo de orden exploratorio, estudiando bajo entrevista (5 especialistas) 8 indicadores de análisis relacionados con el proceso de preparación física aplicada. Se evidencia descriptivamente las ideas generales emitidas por los especialistas, que incluyen cómo es la preparación física en la modalidad dificultad, cuáles son las capacidades físicas determinantes y su forma óptima de desarrollarlas, cómo se distribuyen las cargas físicas y sus frecuencias, cómo se trabaja la coordinación motriz, cómo es la preparación física específica de los escaladores incluyendo sus objetivos, así como determinar teóricamente el beneficio en el performance de una buena preparación física aplicada. Se recomienda ampliar la población de especialistas a entrevistar, para incrementar la confiabilidad del análisis.
Conformación de baremos por rendimiento del VO2 máx del personal de la armada del Ecuador
Authors: Vivas Rodríguez Jorli Pepe , Remache Reinado Henry Saúl , Calero Morales Santiago
Published: March 2022

Introducción: Los baremos son respuestas a valores y datos de una tabla de cálculos ponderados, agilizando el proceso de realizar operaciones matemáticas al personal interesado, facilitando al entrenador obtener datos que conlleven a una planificación adecuada. Objetivo: Conformar baremos del VO2 máx luego de un entrenamiento ATR especializado para el personal de la Armada del Ecuador, clasificando grupos homogéneos para el entrenamiento. Métodos: Investigación descriptiva-explicativa de orden correlacional, seleccionando intencionalmente a 87 miembros de la Armada del Ecuador perteneciente a la Comandancia de la Escuadra Naval (CODESC) en la ciudad de Guayaquil (20-60 años), implementando un modelo ATR especializado para mejorar el VO2 máx, conformando baremos por rangos de rendimiento. Resultados: Se conformaron tres grupos por rangos de rendimiento, existiendo diferencias significativas en el VO2 máx a favor del postest (Grupo A: p=0,000; Grupo B: p=0,000; Grupo C: p=0,000) luego de culminar la estrategia de intervención. Los grupos delimitados conforman tres baremos por rendimiento. Conclusión: En la conformación de baremos, y en base a los datos obtenidos de los sujetos de estudio perteneciente a la Armada del Ecuador, se determinó que, dentro de cada grupo, los sujetos de similar VO2 máx se entrenen como un grupo homogéneo.
Índices de resistencia en corredores juveniles ecuatorianos en distancias de 100-200, 200-400, 400-800 y 800-1500 metros
Authors: Díaz Pinargo Bryan Iván , Comina Fonseca Hugo Santiago , Romero Frómeta Edgardo
Published: March 2022

En el atletismo juvenil ecuatoriano no se han realizados investigaciones dirigidas al control, a largo plazo, del nivel de resistencia láctica de los corredores en distancias entre 100 y los 1500 metros por lo que se constituye en un tema de interés, aunque la aplicación del test de lactato sanguíneo resulta muy costoso para la mayoría. Los estudios demuestran que se puede valorar el nivel de resistencia láctica mediante el empleo de fórmulas matemáticas que hagan corresponder distancias competitivas próximas, por ejemplo, los 100 y 200, los 200 y 400, los 400 y 800 y los 800 y 1500 metros, que dan lugar a los índices de resistencia. Ese instrumento de medición facilita la evaluación del nivel de resistencia láctica de los corredores sin utilizar el test de lactato y permite actuar sobre este proceso. La investigación se dirigió a caracterizar el comportamiento de estos índices en 390 corredores juveniles de ambos sexos, mediante un estudio de los mejores tiempos logrados por ellos en los últimos 10 años en ambas pruebas. Los datos fueron seleccionados de los archivos de la Federación Ecuatoriana de Atletismo y por los propios entrenadores y mediante fórmulas matemáticas de correspondencia se calcularon tres tipos de índices de resistencia y sus baremos correspondientes para el grupo etario estudiado. La utilización de los índices de resistencia denominados por los autores ∆XT, ∆XP, ∆XV resulta una herramienta de gran utilidad para evaluar rápidamente los niveles de resistencia láctica de los corredores en formación.
Brain Culture
Authors: Pykett Jessica
Published: March 2022

This unique book offers a timely analysis of the impact of rapidly advancing knowledge about the brain, mind and behaviour on contemporary public policy and practice. It analyses the global spread of research agendas, policy experiments and everyday practice informed by 'brain culture'.
New treatment alternatives in ankylosing spondylitis and psoriatic arthritis
Authors: Ibáñez Vodnizza Sebastián , Martínez Oriela , Valenzuela Francisca
Published: March 2022

In psoriatic arthritis and spondyloarthritis, there is still room for new drugs, with different mechanisms of action, that allow better personalization of treatment. The objective of this review is to facilitate the clinician's decision to use tofacitinib, upadacitinib, or guselkumab, new treatment alternatives within the wide variety of drugs currently available
CLOUD SERVER DALAM PEMBUATAN APLIKASI FOTOBLOG REALTIME BERBASIS ANDROID
Authors:   Universitas Potensi Utama, Tahel Fithry
Published: March 2022

Today in the development of technology, the process of sharing photos gradually begins to develop. Where individuals who want to share photos need media to be able to share photos that are considered interesting. At present many social media can be used to share interesting photos but as students generally do not know the processes that occur in building a social media application sharing photos. Like how to build an application using a database system that is online so that it can be accessed by many people using an internet connection. To build an application that has a database so that it can be used online, a cloud server is needed, a technology service that combines computers and internet-based networks. So this technology utilizes internet media as a central server for data management. At this time Google has provided a cloud server service called Firebase.
SELIBAT DALAM PANDANGAN KEKRISTENAN (KATOLIK)
Authors:   Universitas Methodist Indonesia, Sitorus Bernat
Published: March 2022

Mendengar kata “selibat” mungkin asing didengar karena kata ini jarang didengar, dibicarakan. Jangankan untuk masyarakat umum, dikalangan kekristenan pun sangat jarang didengar. “selibat” berasal dari kata latin “Caelibatur” yang berarti hidup tidak menikah. Gereja katolik ritus latin menuntut bahwa pastor tidak menikah seumur hidup dan taat pada kemurnian pribadi. Menjadi imam dalam gereja katolik berarti menjadi selibat, yaitu tidak menikah dengan alasan-alasan keimanan. Bentuk hidup selibat keputusan-keputusan diatas dihayati secara pribadi. Tetapi imam yang hidup selibat tidak berarti hidup penyendiri melainkan mewarisi tugas penuturan pastoral dan pelayanan bagi umat Allah. Menjadi selibat itu tidak gampang, banyak yang menjadi kesulitan, tantangan, pengorbanan. Ada banyak faktor atau alasan seseorang menjadi selibat. Penelitian ini menggunakan metode kepustakaan. Penelitian ini fokus pada selibat dalam kekristenan/katolik. Tujuan penulisan ini adalah untuk mendiskusikan selibat dalam berbagai aspek. Penelitian ini menyajikan dan mencoba untuk melihat tentang latar belakang seseorang menjadi selibat. Selibat dipandang dari sisi alkitabiahnya dan dasar sejarah selibat dalam gereja katolik dan ritus- ritus yang lain. Karena menjadi selibat itu tidak semua sama pelaksanaannya, karena ada ritus-ritus yang berbeda aturan dalam pelaksanaannya.