bluuebunny/crossref_metadata_2025 huggingface dataset:
Fragmentos de apocalipsis: la Guerra Civil española en Miserias de la guerra, de Pío Baroja
Authors: Tasende Mercedes
Published: November 2021

En Miserias de la guerra, redactada entre 1949 y 1951, Pío Baroja recurre a las convenciones del género apocalíptico para articular una visión retrospectiva de la Guerra Civil y hacer una serie de vaticinios ex eventu acerca de los resultados de esta. A diferencia de otros textos apocalípticos que conciben la Historia como una totalidad predeterminada por Dios, Baroja niega la intervención divina en los asuntos de los hombres e incide en la responsabilidad individual de los que decidieron unirse a la lucha en nombre de unas utopías religiosas o políticas. Frente a los autores de los textos apocalípticos, que interpretan la violencia y la destrucción como el inicio de la transformación cósmica, y un paso previo a la llegada de un nuevo orden en el que reinará la armonía y la paz, Baroja incide en la falsedad de todas las utopías y en la finalidad de la muerte.
Knowledge Sharing Enablers in Small Business Networks
Authors: Hall Paula , Ellis Debbie , McArthur Brian
Published: November 2021

In an increasingly knowledge-based global economy, social capital and knowledge sharing, particularly amongst small business, have become critical sources of competitive advantage, but how can such knowledge sharing be enabled? The objective of this research was to explore the effect of knowledge sharing enablers on knowledge sharing in female small business networks. This research addresses the call for research into the antecedents of social capital. Specifically, Trust, Social Identity, Social Media Usage and Shared Goals were included in the conceptual model for the study. Together these social capital enablers were found to be significant predictors of knowledge sharing behaviour although unique contributions varied. The research contributes to the growing body of literature on the dimensions of social capital and how they affect knowledge management, and is of use to practitioners involved in supporting female entrepreneurial networks.
Changing Digital Age in the Wake of COVID-19
Authors: Cho Vincent , Roll Lara C. , Wu C. H. , Tang Valerie
Published: November 2021

Virtual teams play a crucial role in today’s knowledge-based organisation for overcoming challenges in our dynamic world, especially in the current situation of the COVID-19 pandemic. Teams play a key role in today’s knowledge-based organization for overcoming challenges in our dynamic world. Drawing on social information processing theory, this study explores the effect of members’ humility and team environment within a leaderless team mainly based on virtual platforms. Their impacts on shared leadership, relationship conflict and team and individual performance were investigated. Surveying 219 students forming 61 virtual leaderless teams, our findings showed that a high level of humility and a positive team environment can help to improve shared leadership within a team, which contributes to team performance. Moreover, both humility and team environment have a negative relationship with relationship conflict, which depressed both team and individual performance. Our analysis also indicated that humility positively interacts with team environment on shared leadership.
The Agglomeration Mechanism of Network Emerging E-Eommerce Industry Based on Social Science
Authors: Wang Jiali , Dai Yixin
Published: November 2021

Network emerging e-commerce refers to the development of wireless broadband technology, smart terminal technology, near-field network, etc. as the driving force. It is the emerging e-commerce represented by the continuous development of modern e-commerce and the integration of commerce. This paper proposes to use Michael Porter’s cluster theory method, income increasing algorithm, and spatial Gini coefficient method to sort out and analyze the research results of industrial agglomeration problems, further study the relationship of e-commerce industry agglomeration mechanism, and build agglomeration simulation model , the construction of the centripetal force model of the industrial agglomeration area, through the analysis of the production factors of the e-commerce industry, and then study the influence of each factor on the development of the e-commerce industry. Finally, this paper selects and uses 16 standard mechanical data sets to investigate and analyze the agglomeration mechanism of the e-commerce industry, which verifies the accuracy and overall applicability of the method.
Lichens (Xanthoria parietina) - Bio-Indicators for Sulphur and Metallic Elements for Pollution Investigation in Riga City
Authors: Krjukoviča Viktorija , Balcerbule Zenta , Lazarenko Vitālijs , Bērtiņš Māris , Viksna Arturs
Published: November 2021

The aim of the research was to investigate the pollution level of sulphur and metallic elements in Riga city (Freeport of Riga, Kundziņsala, Mežaparks) by using foliose lichens (Xanthoriaparietina) as a bio-indicators. Obtained results show that the Freeport of Riga is the most polluted area comparing with other neatest places in Riga city, Kundziņsala and Mežaparks. Evaluate a washing effect, obtained results shows that lichen thallus contains about 50 % of total amount of sulphur and investigated elements as dust particles on the surface of lichens.
Features of the Structure Formation of Diffusion Boride Layers upon Preliminary Activation
Authors: Usherenko Yulia , Mironov Viktor , Dashkevich Vladimir
Published: November 2021

The features of the structure formation of diffusion layers obtained by technology, including preliminary surface treatment of steel products made of U8 steel and subsequent boriding in powder media, have been investigated. The pretreatment consisted of dynamic alloying in the superdeep penetration (SDP) mode with a SiC-based powder composition. As a result, the thickness of the diffusion layer increases, its porosity decreases, and the proportion of the high-boron FeB phase in the layer increases.
Influence of Crystallite Size of Nickel and Cobalt Ferrites on the Catalytic Pyrolysis of Buckwheat Straw by Using TGA-FTIR Method
Authors: Lazdovica Kristīne , Kampars Valdis
Published: November 2021

Pyrolysis of buckwheat straw with or without catalysts was investigated using the TGA-FTIR method to determine the influence of nickel and cobalt ferrites on the distribution of pyrolysis products. According to the obtained results, the overall shape of the thermogravimetric and derivative thermogravimetric curves is unchanged in the presence of nickel and cobalt ferrites but different weight losses were observed. All catalysts contribute to the formation of solid residue from BWS pyrolysis. The presence of cobalt ferrites exhibited the highest bio-oil yields, whereas the highest non-condensable gas yield and the lowest bio-oil yield was obtained with the addition of NiFe2O4 (1) catalyst. According to the obtained results, the ability of nickel and cobalt ferrites to catalyze deoxygenation reactions depends on the crystallite size. The nickel or cobalt ferrites with smaller crystallite size (15-22 nm) show a higher ability to catalyzed dehydration reaction than catalysts with larger crystallite size (45-54 nm).
The Synthesis of Renewable Hydrocarbons from Different Vegetable Oils and Soapstock by Hydrotreatment over High Metal Loading Supported Ni Catalyst
Authors: Māliņš Kristaps , Malina Ilze , Legzdina Mara
Published: November 2021

The catalytic hydrotreatment of sunflower (SO), linseed (LO), coconut (CO), rapeseed (RO), and its soapstock derived acid oil (RS) over commercial Ni65%/SiO2-Al2O3 catalyst was investigated to evaluate utilization feasibility of various vegetable oil feedstocks with different fatty acid content, composition, and saturation for marketable hydrocarbon production. The active metal loading of catalyst was characterized by XRF and its textural properties by N2 sorption analysis. The hydrotreatment tests of different vegetable oils were carried out in solvent free medium, under initial H2 pressure 10 MPa, at operating temperature 340 oC, and residence time 15 min using catalyst amount 5%. GC-FID and GC-MS analysis were used for estimation of dominant n-pentadecane, n-hexadecane, n-heptadecane, n-octadecane, and other hydrocarbon contents in obtained samples. Under studied hydrotreatment conditions complete conversion of different vegetable oils into marketable liquid renewable hydrocarbons without presence of oxygen containing substances was achieved. Highly active Ni65%/SiO2-Al2O3 has remarkable selectivity to hydrocarbons produced by reaction pathways, where elimination of carbonyl groups occurs. The saturation of fatty acids in feedstock determines H2 consumption, but influence on produced hydrocarbon production is insignificant. Depending on the fatty acid composition different saturated linear hydrocarbons with wide range of carbon chain length C5-C19 and similar calorific value 47.16-47.34 MJ/kg were produced in process. Overall liquid hydrocarbon yields were from 44.6 % to 78.1 %. The highest overall liquid saturated linear hydrocarbon yield was observed for feedstock with high amount of long chain fatty acids – SO, LO, RO and RS. Pure hydrocarbons obtained from vegetable oils depending on hydrocarbon composition can be used in various areas.
A Structural Basis for Inhibition of the Complement Initiator Protease C1r by Lyme Disease Spirochetes
Authors: Garrigues Ryan J , Powell-Pierce Alexandra D , Hammel Michal , Skare Jon T , Garcia Brandon L
Published: November 2021

Complement evasion is a hallmark of extracellular microbial pathogens such as Borrelia burgdorferi, the causative agent of Lyme disease. Lyme disease spirochetes express nearly a dozen outer surface lipoproteins that bind complement components and interfere with their native activities. Among these, BBK32 is unique in its selective inhibition of the classical pathway. BBK32 blocks activation of this pathway by selectively binding and inhibiting the C1r serine protease of the first component of complement, C1. To understand the structural basis for BBK32-mediated C1r inhibition, we performed crystallography and size-exclusion chromatography–coupled small angle X-ray scattering experiments, which revealed a molecular model of BBK32-C in complex with activated human C1r. Structure-guided site-directed mutagenesis was combined with surface plasmon resonance binding experiments and assays of complement function to validate the predicted molecular interface. Analysis of the structures shows that BBK32 inhibits activated forms of C1r by occluding substrate interaction subsites (i.e., S1 and S1’) and reveals a surprising role for C1r B loop–interacting residues for full inhibitory activity of BBK32. The studies reported in this article provide for the first time (to our knowledge) a structural basis for classical pathway–specific inhibition by a human pathogen.
The poliomyelitis research foundation
Authors: Office Editorial
Published: November 2021

No abstract available.
The scope of sympathetic denervation in poliomyelitis
Authors: Zadikoff I. J.
Published: November 2021

No abstract available.
Prevention of deformity
Authors: Office Editorial
Published: November 2021

No abstract available.
World confederation for physical therapy - report of President to second general meeting
Authors: Elson M.
Published: November 2021

No abstract available.
Post-natal rehabilitation
Authors: Harte Rosemary
Published: November 2021

No abstract available.
Relationship between time at diagnosis and clinical manifestations of phenylketonuria in a sample of Egyptian children
Authors: Kamel Ashraf S. , Ahmed Essaam Eldeen G. , Hassan Fatma S. , Masoud Mohamed , Mohamed Wael S.
Published: November 2021

Objective

The aim of this study was to explore the relationship between age at the time of diagnosis of pediatric phenylketonuria (PKU) and clinical manifestations in a sample of Egyptian children.

Patients and methods

This retrospective cohort included children diagnosed as PKU. The collected data included the time, age, and phenylalanine (Phe) level at diagnosis, sex, serial plasma Phe levels, neurological and behavioral problems, developmental quotient, and anthropometric measurements.

Results

Sixty-six patients were included. Compared with early diagnosed patients, late cases had significantly lower median Phe levels (P<0.001) and higher rates of neurological complications (P<0.001) and behavioral problems (P<0.001). Compared with compliant patients, noncompliance was significantly associated with late diagnosis (P=0.001), neurological complications (P=0.001), and hyperactivity (P=0.017).

Conclusions

Stature and head circumference were not significantly affected by time of diagnosis or compliance with treatment. Early diagnosis and compliance with dietary treatment have a potential impact on neurological and behavioral problems in pediatric PKU patients.
Spontaneous resolution of prolonged cholestatic jaundice following hepatitis
Authors: Bhowmick Rohit , Mishra Divya , Kommu Peter Prasanth Kumar , Balraj Antonieo Jude Raja
Published: November 2021

In children, acute viral hepatitis-A infection is usually a self-limiting illness. In most children, it resolves uneventfully within weeks from the onset of disease. However, rare presentations like acute acalculous cholecystitis and persistent cholestatic jaundice have been reported. We report on a 7-year-old boy with prolonged cholestatic jaundice, which resolved without steroid treatment.
Intelligence quotient and its determinants using Draw-A-Person Test and Ravens progressive matrices among primary school children in Enugu, Southeast Nigeria
Authors: Iloh Kenechukwu K. , Chidiebere Osuorah D.I. , Iloh Ogochukwu N. , Igbokwe Obianuju O. , Nwaneli Ezinne I. , Akubuilo Uzoamaka
Published: November 2021

Background

The intelligence quotient of a child is determined to a large extent by genetic factors. However, the social context in which a child is brought up also plays a significant role in the overall cognitive capabilities of the child.

Patients and methods

This cross-sectional descriptive study enrolled 1122 school-aged children between the ages 6 and 12 years in the Enugu-East local government area of Enugu State over a 3-month period using the multistage sampling method. Raven’s Standardized Progressive Matrices and the Draw-A-Person Test (DAPT) were used to assess the intelligence quotient of the study participants. It aimed to assess the relatability of the two intelligent quotient (IQ) assessment system and sociodemographic determinants of IQ in school pupils.

Results

With the Raven system of IQ assessment, 73 pupils (7.6%) were noted to be above average intelligence, 150 (15.7%) had above average intelligence, 293 (30.6%) were considered to have average intelligence, while 340 (35.5%) and 101 (10.6%) were below average and intellectually defective, while the DAPT system categorized 258 of the pupils surveyed (27%) as having above average intelligence, 593 (62%) were considered to have average intelligence, while 82 (8.6%) and 24 (2.4%) were considered mentally deficient, respectively. Both scoring systems showed slight agreement with an interagreement reliability coefficient (K) of 0.093 [95% confidence interval (CI) 0.001–0.003]. Pupils’ socioeconomic class [odds ratio (OR) 1.82 (95% CI 1.21–2.73), P=0.004], maternal educational [OR 0.38 (95% CI 0.23–0.63) P=0.001], and school type [OR 2.23 (95% CI 1.45–3.43) P=0.001] significantly predicted suboptimal IQ in study participants under the Raven assessment system.

Conclusion

Our study identified poor interrater agreement between the Raven and DAPT IQ assessment systems and factors that correlate with suboptimal IQ under the Raven system of IQ assessment.
Prevalence of anxiety and depression among adolescents with juvenile idiopathic arthritis during the COVID-19 pandemic, a single tertiary center experience
Authors: Abdelgalil Abobakr A. , Muzaffer Mohammed A.
Published: November 2021

Background

The coronavirus (COVID-19) pandemic has caused tremendous disruption to patients with chronic diseases.

Aim

To detect prevalence of anxiety and depression among adolescents with juvenile idiopathic arthritis (JIA) during the COVID-19 pandemic.

Patients and methods

We conducted a cross sectional study included59 participants aged 12–18 years old (29 JIA patients and 30 healthy controls). An Arabic validatedform of the Hospital Anxiety and Depression Scale (HADS) as a measure of degree of anxiety and depression was used.

Results

Out of 29 JIA patients during the COVID-19 pandemic, 13.8% and 17.2% were consistent with diagnosis of anxiety and borderline anxiety respectively. Also, 3.4% and 17.2% reported symptoms consistent with diagnosis of depression and borderline depression respectively. There was no significant difference between patients’ anxiety and depression on one hand and control group on the other hand (for all P>0.05) Additionally, patients on biological infusion therapy requiring hospitalizationexhibited a significant increase in HADS-A score for anxiety (P value = 0.027).

Conclusion

A considerable proportion of JIA adolescent patients exhibited symptoms of either borderline or diagnosis consistent with anxiety and to a lesser extent with depression during the COVID-19 pandemic but with no significant difference with the control group. JIA and its related variables had no effect on psychological outcome of the patients compared to control. JIA patients who necessitated hospital admission were more likely to show higher anxiety levels. Attention should be paid to patients with JIA particularly those requiring frequent hospital admissions and their psychiatric symptoms during such pandemics to avoid unfavorable psychiatric hazards.
The impact of coronavirus disease (COVID-19) pandemic and lockdown on quality of life of healthy school aged children and adolescents
Authors: Elsakka Elham E.
Published: November 2021

Background

Coronavirus disease (COVID-19) pandemic and lockdown may influence children and adolescents’ quality of life (QoL).

Aim

To assess the impact of COVID-19 pandemic and lockdown on QoL of school-aged children and adolescents.

Patients and methods

A cross-sectional survey was conducted in Alexandria, on children and adolescents, fulfilling inclusion and exclusion criteria, during June 1st–10th, by an anonymous online questionnaire, sent through social media to participants, to assess their negative impact, feelings, and QoL. QoL was classified as poor, fair, or good.

Results

The study included 423 participants. Mean age 13.36±13.3 years. About 77.7% of participants adhered to lockdown completely. Around half of participants were negatively impacted by feeling bored, cannot leave the house, go to restaurants or cafes, see their friends, go on holidays, or go shopping. More than half felt bored, wanted their life to return to normal, afraid that they or a family member catches the disease, or want this to end. About 76.6% of participants had poor QoL, 23.2% had fair QoL, and 0.2% had good QoL. QoL was statistically significantly associated with age of participants, caregivers they are living with, and the number of their siblings, following lockdown, being negatively impacted by being unable to go shopping or go on holidays and feeling afraid to catch the disease.

Conclusion

COVID-19 pandemic and lockdown have an impact on school-aged children and adolescents’ feelings and a significant negative impact on their QoL changing it to fair or poor. Their QoL is influenced by their age, sex, their caregivers, unable to go shopping or go on holidays, and their fear to catch the disease, with a statistically significant association.
TMAO promotes apoptosis and oxidative stress of pancreatic acinar cells by mediating IRE1α-XBP-1 pathway
Authors: Yang Guodong , Zhang Xiaoying
Published: November 2021

Background:

Acute pancreatitis caused by hyperlipidemia is a severe life-threatening condition. Therefore, it is urgent to develop new therapeutic methods to treat this disease.

Methods:

Cell viability was determined by the Cell Counting Kit-8 (CCK-8) assay. Western blotting (WB) was used to detect the expression levels of apoptotic and endoribonuclease inositol-requiring enzyme 1α (IRE1α)/X-box binding protein 1 (XBP-1) pathway-associated proteins. The induction of cell apoptosis was determined using flow cytometry. The expression levels of the oxidative stress indicators were measured by an enzyme-linked immunosorbent assay.

Results:

WB analysis and the CCK-8 assay demonstrated that trimethylamine-N-oxide (TMAO) decreased cell viability and facilitated apoptosis of MPC-83 cells in a dose-dependent manner. Furthermore, the induction of oxidative stress was assessed by evaluating the levels of specific markers, including hydrogen peroxide, reactive oxygen species, nitric oxide, and superoxide dismutase. The levels of the aforementioned markers were increased in the TMAO-treated group. Subsequently, the IRE1α/XBP-1 pathway-associated proteins were analyzed by WB analysis and the data demonstrated that the regulatory effects of TMAO on MPC-83 cells were meditated by the IRE1α/XBP-1 signaling pathway. Subsequently, rescue experiments were performed to further assess the effects of TMAO.

Conclusion:

The present study provides evidence on the application of TMAO as a potential diagnostic and therapeutic strategy for the therapeutic intervention of hyperlipidemic acute pancreatitis.
Patterns in sets of positive density in trees and affine buildings
Authors: Björklund Michael , Fish Alexander , Parkinson James
Published: November 2021

We prove an analogue for homogeneous trees and certain affine buildings of a result of Bourgain on pinned distances in sets of positive density in Euclidean spaces. Furthermore, we construct an example of a non-homogeneous tree with positive Hausdorff dimension, and a subset with positive density thereof, in which not all sufficiently large (even) distances are realised.
Stability in a group
Authors: Conant G.
Published: November 2021

We develop local stable group theory directly from topological dynamics, and extend the main tools in this subject to the setting of stability “in a model.” Specifically, given a group

G

, we analyze the structure of sets

A \subseteq G

such that the bipartite relation

xy\in A

omits infinite half-graphs. Our proofs rely on the characterization of model-theoretic stability via Grothendieck's “double-limit” theorem (as shown by Ben Yaacov), and the work of Ellis and Nerurkar on weakly almost periodic

G

-flows.
Метод Римана-Гильберта и $N$-солитонное решение обобщенного смешанного нелинейного уравнения Шредингера с ненулевыми граничными условиями
Authors: Qiu Deqin , Lv Cong
Published: November 2021

Обобщенное смешанное нелинейное уравнение Шредингера с ненулевым граничным условием на бесконечности решается методом обратной задачи рассеяния. Проведены исследования теории рассеяния. Для прямой задачи дан анализ аналитичности, симметрий и асимптотического поведения решений Йоста и матрицы рассеяния, а также свойств дискретного спектра. Для обратной задачи сформулирована задача Римана-Гильберта. При решении этой задачи получены формула реконструкции, формула следа и тета-условие. В безотражательном случае получен сложный интегральный множитель, что является ключевым моментом получения явного выражения для $N$-солитонных решений. С помощью $N$-солитонной формулы анализируется богатство динамических особенностей решения и его фаз при выборе различных значений параметров.
Теоретико-групповой подход к релятивистским волновым уравнениям для произвольного спина
Authors: Nanni Luca
Published: November 2021

Формулировка релятивистского уравнения в случае частиц с произвольным спином остается открытой задачей в теоретической физике. Исследованы основные алгебраические подходы, позволяющие обобщить уравнения Дирака и Кеммера-Дэффина для произвольного спина частиц. Доказано, что неприводимое релятивистское уравнение, сформулированное с использованием матриц спина, удовлетворяющих коммутационным соотношениям группы анти-де Ситтера, приводит к противоречивым результатам, главным образом вследствие нарушения унитарности и появления спектра масс, который не отражает физическую природу элементарных частиц. Однако введение дополнительных условий решает проблему унитарности и восстанавливает физический смысл спектра масс. Найдены решения уравнений, полученных с помощью этих подходов, и обсуждается физическая природа решений.
Зеркальное отображение для многочленов Ферма с неабелевой группой симметрий
Authors: Basalaev Aleksei Andreevich , Ionov Andrei A
Published: November 2021

Изучаются орибифолды Гинзбурга-Ландау $(f,G)$ в случае $f=x_1^n+\cdots+x_N^n$ и $G=S\ltimes G^d$, где $S\subseteq S_N$ и $G^d$ - либо максимальная группа скалярных симметрий многочлена $f$, либо пересечение такой максимальной группы с $SL_N(\mathbb{C})$. Построено зеркальное отображение между соответствующими фазовыми пространствами и доказано, что, когда число $n=N$ простое, это отображение является изоморфизмом, ограниченным на определенное подпространство фазового пространства. Если $S$ удовлетворяет условию четности Эбелинга-Гусейн-Заде, то это подпространство совпадает со всем пространством. Также показано, что два фазовых пространства изоморфны при $n=N=5$.
Многочлены Чебышeва-Эрмита и распределения многочленов от гауссовских случайных величин
Authors: Bogachev Vladimir Igorevich
Published: November 2021

В работе дан обзор нескольких направлений исследований, связанных с многочленами Чебышeва-Эрмита на конечномерных и бесконечномерных пространствах, в том числе использующих исчисление Маллявэна и другие методы изучения распределений многочленов от гауссовских случайных величин. Приведены оценки мер множеств больших и малых значений, оценки по вариации между распределениями многочленов, результаты о принадлежности таких распределений классам дробной дифференцируемости Никольского-Бесова. Получены новые результаты о слабой сходимости мер, заданных полиномиальными плотностями относительно гауссовских мер.
Поправка Чебышeва-Эджворта в центральной предельной теореме для целочисленных независимых слагаемых
Authors: Bobkov Sergei Germanovich , Ulyanov Vladimir Vasilievich
Published: November 2021

Дан краткий обзор результатов по уточненным формам центральной предельной теоремы на прямой. Особое внимание уделяется случаю независимых целочисленных случайных величин. Получены новые результаты для разнораспределенных слагаемых с использованием поправки Чебышeва-Эджворта, содержащей моменты третьего порядка.
К 200-летию со дня рождения великого русского математика П. Л. Чебышeва
Authors: Shiryaev Albert Nikolaevich
Published: November 2021

Настоящая статья является расширенным текстом вступительного слова на Международной конференции "П. Л. Чебышeв - 200" (Москва, 17-22 мая 2021 г.).
Face Seal Gland Design, Static, O-Ring and Other Seals for Aerospace Hydraulic and Pneumatic Applications
Authors:   A-6C2 Seals Committee
Published: November 2021

This SAE Aerospace Standard (AS) specifies standardized gland design criteria and dimensions for static face seals for internal pressure and external pressure applications for aerospace hydraulic and pneumatic applications using the same dash size range as AS4716 and AS5857 where applicable.
To Follow Conrad’s Stage Adventure
Authors: Szczepan-Wojnarska Anna M.
Published: November 2021

Review of: Conrad’s Drama: Contemporary Reviews and Observations. Edited by John G. Peters. Leiden–Boston, MA: Brill–Rodopi, 2019, 515 pp.
CÁC NHÂN TỐ ẢNH HƯỞNG ĐẾN SỰ HÀI LÒNG CỦA DOANH NGHIỆP FDI ĐỐI VỚI CHẤT LƯỢNG DỊCH VỤ KHU CÔNG NGHIỆP TẠI VIỆT NAM
Authors: NGÂN NGUYỄN THỊ , KHÔI BÙI HUY
Published: November 2021

Nghiên cứu này nhằm đánh giá chất lượng dịch vụ khu công nghiệp theo góc nhìn của doanh nghiệp có vốn đầu tư nước ngoài tại Việt Nam. Dữ liệu được khảo sát và thu thập từ 301 doanh nghiệp FDI tại các khu công nghiệp Việt Nam – Singapore (VSIP) ở Việt Nam. Mô hình nghiên cứu đề xuất dựa trên nghiên cứu về chất lượng dịch vụ của một số tác giả trong và ngoài nước. Độ tin cậy và giá trị của thang đo được kiểm định bằng hệ số Cronbach's Alpha, Phương sai trích (Pvc) và Độ tin cậy tổng hợp (Pc). Kết quả phân tích mô hình cấu trúc tuyến tính (SEM) cho thấy có bốn yếu tố ảnh hưởng đến chất lượng dịch vụ khu công nghiệp tại Việt Nam.
GIÁ CHUYỂN NHƯỢNG – NHẬN DIỆN NHỮNG NGUY CƠ THÁCH THỨC VÀ PHẢN ỨNG CỦA CÁC BÊN LIÊN QUAN TRONG KỶ NGUYÊN HỘI NHẬP TOÀN CẦU
Authors: ÂN ĐIỂN QUÁCH NGUYỄN
Published: November 2021

Thuế là nguồn thu ngân sách rất cơ bản và quan trọng của một quốc gia, ngày nay các nước trên thế giới luôn quan tâm đến việc nuôi dưỡng nguồn thu từ thuế, đồng thời cũng ra sức chống lại việc thất thu thuế. Đối với các nước giàu có và phát triển, điển hình là nhóm các nước G20, họ đã có những hoạt động hợp tác liên kết chặc chẽ trong việc ngăn chặn việc “Trốn thuế/tránh thuế” của đối tượng nộp thuế, hiện tại,Tổ chức Hợp tác và Phát triển kinh tế (tên viết tắt tiếng Anh là OECD) – là một tổ chức quốc tế được hình thành từ nhóm các nước G20 - đã xây dựng dự án kế hạch hành động chống xói mòn lợi nhuận và chuyển lợi nhuận (Action Plan on Base Erosion and Profit Shifting-viết tắt là BEPS), đề án này đã được nhóm các nước G20 thông qua vào tháng 11/2015, đồng thời OECD cũng đã thiết lập một Diễn đàn hợp tác chung thực hiện các giải pháp của BEPS (Inclusive Framework - Diễn đàn IF). Tháng 7/2017, Việt Nam đã chính thức trở thành thành viên thứ 100 của Diễn đàn IF. Cũng theo đề án BEPS, hoạt động giá chuyển nhượng (Transfer Pricing) là một trong những nội dung đáng quan ngại. Bài viết này tập trung khái quát và làm rõ những nguy cơ thách thức đồng thời kiến nghị một số giải pháp nhằm hạn chế rủi ro về thuế nói riêng và tài chính nói chung.
Detection of Unwanted Odors using Unmasking Odor Algorithm (UOA)
Authors: Iskandarani Mahmoud Zaki
Published: November 2021

A new approach to detection of the existence of unwanted odors after spraying the smart home and vehicular environment with perfumes is considered in the work. The approach is based on registering the response curve of an array of sensors to perfumes and to odors such as herbs, then using the proposed intersection algorithm to uncover the ability of the perfume to mask specific odors. Three odors (herbs) and three perfumes are tried and resulted in the ability of perfumes to mask two of the herbs, one deeper than the other. The response curve intersection technique (RCIT) provides the ability to unmask unwanted odor existence, thus forms the heart of the unmasking odor algorithms (UOA). Mathematical equations are used to prove the concept with digital logic is further used to support the presented algorithm. The research found that using the proposed technique, an odor masked by spraying of perfumes can be unmasked using the RCIT as the case in herb 3 presented in the work. The work also showed the unique curve shape for both perfumes and herbs and the fact that some herbs can be easily masked and hidden within the response of perfumes. In addition, it is shown that the perfumes response is much more complex compared to herbs
AN ALTERNATIVE FOR VALORIZATION OF WASTES AS ENERGY SOURCE
Authors:   ICSI, Zaharioiu Anca , Bucura Felicia , Constantinescu Marius , Petreanu Irina , Marin Florian , Popescu Diana Ionela , Sandru Claudia , Ionete Eusebiu Ilarian , Oancea Simona , Ionete Roxana Elena
Published: November 2021

The efficient use of renewable energy resources is one of the most important elements of energy sustainability at the European Union level. The growing demand for energy will continue to support the use of other materials as resources of energy than conventional ones, coal, crude oil and natural gas. This paper investigates the feasibility of valorizing wastes with energetic potential in a multi-component alternative solid fuel. Biomass - vegetable waste (BW), meat and bone meal (MBM) and slag/bottom ash from lignite combustion, in combination with a low-rank, lignite, was used to prepare tri-component mixtures (MBM+Lignite +Slag and MBM+BW+Lignite) indifferent variable proportions, and further characterized to assess their potential for use as energy source. The thermal behavior of the mixtures was assessed by thermogravimetric analysis; the resulting ashes were characterized by scanning electron microscopy.Also, the environmental impact as emissions level after their combustion was considered. In terms of an effective way of removing wastes (e.g. slag/bottom ash and MBM), the most promising proposed solid mixture was the combination MBM(50%): Lignite(25%): Slag (25%), with a high energetic value, > 2700 kcal/kg, a volatile matter content > 35 %wt, and the ash in half amount compared to its initial mass. Thestudy’s findings illustrate the possibility of turning solid waste to raw material by converting them into energy, and promote the development of long-term waste management and recovery solutions.
CALCULATION PROGRAM FOR THE PROCESSING OF LOW-CONCENTRATED TRITIUM AND DEUTERIUM WASTE THROUGH THE CECE ISOTOPIC SEPARATION PROCESS
Authors:   ICSI, Bornea Anisia , Zamfirache Marius Valentin ,   ICSI
Published: November 2021

Within the research conducted at our Institute of Cryogenic and Isotopic Technologies (ICSI), is developed a project entitled "Innovative CECE process solution to promote a new technology for decontamination of liquid waste, tritium low concentrated and deuterium recovery”. The main objective of the project carried out within our team is to promote an innovative solution of CECE isotopic separation process (Combined Electrolysis and Catalytic Exchange), part of a new technology for decontamination of liquid waste, poorly concentrated in tritium, generated by nuclear reactors, ensuring increased recovery of the isotope deuterium and tritium. This paper presents the current stage of an innovative CECE isotopic separation process solution, and also the mathematical model developed for the simulation of hydrogen isotope separation processes through the CECE process and a theoretical analysis based on numerical data resulting from the simulation of two CECE plant operating mode.
ELISA and Fourier-transform infrared spectroscopy
Authors: Clavijo-Maldonado Alejandro , Ferreira Enio , Pérez-Cárdenas Jorge E. , Vargas- Hernández Carlos , Rivera-Páez Fredy A.
Published: November 2021

ELISA and FTIR assay techniques were used to identify HER2 gene expression in the blood serum of female dogs and to characterise the biochemical composition. ELISA tests assess the stage of primary tumour development and evolution, while FTIR allows for a complete characterisation of biomolecules associated with the tumoral process. Blood serum samples from 30 female dogs were analysed. Concentrations of the HER2/neu protein were detected using ELISA kits specific for canine and human detection. Infrared spectroscopy (IR) was conducted in absorbance mode at a frequency range of 400–4000 cm-1 and a resolution of 4 cm-1 over 50 scans. The ELISA cut-off for HER2 protein concentration in blood serum was determined using the receiver operating characteristic (ROC) curve and by estimating the area under the curve (AUC) at a 95% confidence interval (CI=95%). The ROC curves in the canine and human ELISA tests were 0.75 and 0.45, respectively. The representative IR spectra for HER2 gene expression corresponded to lipids (1161 cm-1, 1452 cm-1, 2851 cm-1). This study contributes to the knowledge of HER2 through the identification of biochemical features associated with the changes in the HER2/neu+ and HER2/neu- states.
Cryptosporidium sp. infection in the broiler chickens and turkeys on farms in north central Algeria
Authors: Guechtouli Sihem , Mimoune Nora , Messai Chafik-Reda , Salhi Omar , Kaidi Rachid , Khelef Djamel
Published: November 2021

This study aimed to determine the prevalence of cryptosporidiosis in broiler chickens and turkeys and the factors that can influence its development, the precision of the most frequent sites of Cryptosporidium, and the severity of lesions associated with the disease. From October 2019 to September 2020, the prevalence of Cryptosporidia infection was determined on 22 farms located in north central Algeria. For each farm, weekly visits were conducted during the study period and information on the type of farming and health status was collected. At these farms, 98 chickens and 22 turkeys were examined and clinical lesions recorded. Analyses of faeces, tissue samples and scrapings made from the intestine, bursa of Fabricius, trachea, cloaca and proventriculus revealed a prevalence of 55% at chicken farms. The age of chickens was found to be a significant factor, with a high frequency of the disease observed in chickens aged between 10 to 50 days with a maximum between 31 and 40 days (84.62%). The parasite was not detected in chickens younger than 7 days. The most common site of Cryptosporidium sp. was the bursa (24.2%), followed by the trachea (21.5%), cloaca (18.9%), intestine (16.3%), and proventriculus (6.6%). In turkeys, the overall prevalence was 41%. The bursa was the most infected organ (23.81%), followed by the cloaca (15.79%) and intestine (9%). For both avian species, data confirmed the impact of season, strain (genetic potential), and rearing conditions on the prevalence of Cryptosporidium sp. To conclude, our results showed that Cryptosporidium was very common on these farms, and was related mainly to climatic conditions and poor management, particularly hygienic measures.
Minimum Miktarda Yağlama Tekniği İle Frezeleme İşleminde Yüzey Pürüzlülüğünün ANFIS İle Modellenmesi
Authors: DİLİPAK Hakan , ASAL Ömer , YALÇINKAYA Ayşegül , ÜNAL Şeymanur
Published: November 2021

Methods such as fuzzy logic and artificial neural networks have been used frequently recently in modeling. In this study, mathematical models for estimating surface roughness were created in surface milling processes using artificial intelligence techniques. Within the scope of the study, 1.2738 mold steel was used as workpiece material. The experiments were carried out under dry cutting conditions and using a minimum quantity lubrication technique. As cutting parameters, the cutting speeds and the feed rates are selected. In experiments; 80 mm/min, 130 mm/min, 180 mm/min values, 3 different cutting speeds and 0.5 mm/teeth, 0.8 mm/teeth and 1mm/teeth 3 different feed rates were used. A total of 27 experiments have been conducted and the results of the experiments were modelled using the MATLAB program and the effect of the minimum quantity lubrication (MMY) technique on surface roughness using an adaptive network-based fuzzy logic inference system (ANFIS) approach. At the same time, the mathematical model was created by performing regression analysis in MINITAB. The results obtained by ANFIS and regression analysis were compared. As a result, the ANFIS model provided 100% accuracy, while the regression model achieved 71% accuracy.
El precio de la vivienda en España tras el inicio de la crisis económica: un análisis empírico
Authors: Torres-Téllez Jonathan , Montero Soler Alberto
Published: November 2021

Esta investigación tiene como objetivo analizar los factores que han influido en los niveles de precios de la vivienda en España tras el inicio de la crisis económica. Para ello se ha elaborado un panel de datos con efectos fijos que comprende 2008-2016 para 17 regiones españolas, que incluye variables del lado de la demanda y de la oferta. Los resultados indican que la demanda sigue siendo el principal impulsor de los precios para el caso español. Además, la oferta también está presionando al alza los precios, un síntoma que puede indicar la posible existencia de una burbuja inmobiliaria.
Efecto de la distribución de tamaño de partícula de AlN empleado como refuerzo durante la fabricación de materiales compuestos de Mg-AZ91E por infiltración sin presión externa
Authors: Lemus-Ruiz José
Published: November 2021

El presente trabajo se enfoca en la síntesis y caracterización de un material compuesto de matriz de magnesio AZ91E con alto contenido de partículas de refuerzo (~50% vol.) de nitruro de aluminio (AlN). La fabricación se realizó por el método de infiltración sin usar presión externa, partiendo de preformas de AlN en verde, es decir sin pre-sinterizar. Las preformas con porosidades de ~50% vol., fueron producidas empleando polvo de AlN de tres distribuciones de tamaño de partícula (A:fina, B:media y C:gruesa) distintas, e infiltradas con la aleación de magnesio AZ91E líquida a 850ºC durante 12 minutos en una atmósfera de argón. Técnicas de microscopía electrónica de barrido (MEB), así como difracción de rayos X (DR-X) fueron empleadas para caracterizar los compuestos AZ91E/AlN producidos, evaluando la distribución del refuerzo, porosidad y productos de reacción. AlN, Mg y Mg17Al12 fueron dtectados por XRD. Los resultados obtenidos por MEB muestran una distribución homogénea del refuerzo, libres de productos de reacción, entre la matriz y el refuerzo, para los tres casos analizados. Resultados de la caracterización mecánica indican valores promedio del módulo de elasticidad alrededor de 123 GPa. El coeficiente de expansión térmica lineal oscila en ≈9.61x10-6°C-1  y 8.96x10-6°C-1 en el rango de temperatura entre 25 y 300°C. La conductividad térmica se incrementa de 47 W/mK para el compuesto fabricado con partículas C:gruesas, a 53 W/mK para la partículas de tamaño B:medio y a 81 W/mK con tamaño de partícula A:fina, medidos a temperatura ambiente, 25°C, sin embargo la conductividad disminuye para los tres compuestos cuando se incrementa la temperatura de medición.
Seguimiento plurianual (2013-2016) del vuelo invernal de mariposas (Lepidoptera: Papilionoidea) en el campus de la Universidad Pablo de Olavide, de Sevilla (sur de España)
Authors: López-Fernández Marina , Ferreras-Romero Manuel
Published: November 2021

Durante los inviernos 2013/2014, 2014/2015 y 2015/2016 y la primera mitad de la primavera que siguió a cada uno de ellos, fue estudiada la fenología de la fase adulta de las mariposas diurnas presentes en el campus de la Universidad Pablo de Olavide, de Sevilla (España). El número de especies observadas a lo largo de esos inviernos (12), la abundancia de cada una de ellas y los cambios en la diversidad fueron analizados. Ejemplares de Artogeia rapae, Vanessa atalanta, Vanessa cardui, Pieris brassicae, Colias crocea, Tomares ballus y Zerynthia rumina fueron observados todos los inviernos. Por último, para todas las especies halladas en este estudio ha sido realizado un estudio comparativo entre el inicio del periodo de vuelo aquí registrado y aquél que aparece recogido en la bibliografía consultada.
Legal Aspects of Actions of the Traffic Police as a Chain Breaker for Covid-19 Transmission
Authors:   Universitas Hang Tuah Surabaya, Maladi Imam
Published: November 2021

The role of Police of the Republic of Indonesia in enforcing discipline among the community is very significant, especially the role of Traffic Police (SATLANTAS) in providing education to people who drive, use public transportation to access the public facilities and so on. However, people who want to be protected cannot accept the funeral of Covid-19 in their local cemeteries, by resisting police officers. So in this case, POLRI (the Police of the Republic of Indonesia) and especially the traffic polices play a significant role in facing the community. There is a need for legal protection for the efforts that the police will take in both preventive and repressive efforts. The purpose of this study is to analyze the Legal Aspects of traffic police action as a Covid-19 transmission chain breaker. The method used in this research is a normative juridical research method, which is research that focuses on examining the application of rules or norms in positive law. The purpose of this study is to analyze the legal aspects of traffic police action as a covid-19 chain breaker. This research is expected to provide information to the reader about the legal aspects of traffic police action as a Covid-19 chain breaker and a form of legal protection for traffic police who have a duty to break the covid-19 chain breaker. As for the results of this research, every action taken by the police, especially the traffic police during a pandemic to the public has a legal basis, namely Law Number 2 of 2002 on Police of the republic of Indonesia , Article 3 of Law Number 22 of 2009 traffic and road transport other the police also have a right to be protected like a civil society because they have the rights as stated in Article 28 of the 1945 Constitution and Article 10 of article number 8 of 2009 on the implementation of human rights principles and standards in the performance of the duties of the state police of the republic of Indonesia. So that for policyholders to be able to provide more strict regulations, and informative for the public and police officers can realize a common goal. It is hoped that no more similar cases will occur so that the public can better understand the rules in force in the Prevention of Covid-19 Transmission in Indonesia and the public can act more wisely in dealing with it.
Assessment of Waste Scavenging Activities in Calabar, Cross River State, Nigeria
Authors:   Department of Urban and Regional Planning, University of Calabar, Calabar, Cross River State, K. Ajom Simon
Published: November 2021

The study was focus on assessing waste scavenging activities in Calabar, Cross River State. Specifically, the study appraised the socioeconomic characteristics of solid waste scavengers in Calabar and analysed the contributions of scavengers in the waste management process. The study obtained data through questionnaire administration. A total of 50 copies of questionnaire were distributed purposively to waste scavengers in the study area while descriptive statistics was used in carrying out analysis. It was observed that scavenging is exclusively carried out by males and those between 31 years and 40 years dominate the waste scavenging process. It was equally revealed that the married form a larger percent of scavengers in the study area. Scavengers were observed to be engaged in picking up irons/metals, plastics, glasses, copper, bottles as well as vegetables and food remains. Scavengers are mainly involved in the exercise in order to enable them earn a living. Therefore, wastes materials that are pickup in the process are sold out to recycling companies. Specifically, iron scraps pickers sell them to iron recycling companies while vegetable waste pickers sell to fertilizer production companies. Very few scavengers use the wastes they pick up for personal uses. However, it was noted that scavengers contribute positively in the management of solid waste in Calabar. Based on the findings, it was suggested that waste sorting should be encouraged among youths through the organization of sensitization campaigns and the awareness since it has the potentials of reducing unemployment while promoting waste management. Equally, scavengers should be recognized by the government as managers in the waste sector and be given some incentives
PD-1 /PD-L1 Adoptive Checkpoint Biosynthesis Separately Are Regulated By Gamma Common Which Regulate PD-1, Globin, and IFN-Gamma
Authors:   Biomedical Molecular Studies & Cancer Diseases, Home Adress: Canada, Toronto, Goldwin Avenue west and Egypt, El Tantawi Ashraf Marzouk
Published: November 2021

PD-1 /PD-L1 is adoptive checkpoint mechanism, where PD-1 is an adopting its PD-L1 ligand activities by presence of specific helical kinase proteins in its compositions: _gamma common chains,_LNK” lymphocyte adaptor protein, _or SH2B adaptor _protein “tyrosine kinases, and _”SOCS” suppressor of cytokine signaling, that specified for controlling PD-1 and PD-L1 bindings activity through temporary resting the PD-L1 and consequently T-cells activities then transform incoming signals to exogenous processes in favor the of proper immune functions, But the permanent inhibition of PD-1 /PD-L1 binding is due to breaking down or inhibition in one or more of the adaptors helical proteins (lymphocyte adaptor protein, or SH2B) with the presence of SOCS” suppressor of cytokine signaling that will increase stability of binding without adopting and without activities, but cells survival can still exist through presence of tyrosine kinases , interferon stimulate kinases ,and gamma common.