Miracle-dz/UniFAR-FTUs huggingface dataset:
Crises and Their Effects on Freight Transport Modes: A Literature Review and Research Framework

Learning from the effects of past crises allows the transport sector to handle future crises effectively and proactively. The goal of this paper is to identify and classify types of crises that have hit Europe in the previous 20 years and to identify the effects of these crises on the freight transport modes. Moreover, further research on each transport mode is derived. To reach this goal, we conducted a systematic literature review by using five well-known databases, which resulted in 296 search results, of which 29 references were relevant. We identified four crises that hit the freight transport modes in the previous 20 years in Europe: the 2008 financial crisis, the 2015 migration crisis, the 2020 COVID-19 crisis, and the ongoing climate crisis. However, the effects of the different crises on the transport modes can be both positive (e.g., the introduction of a new maritime slow-steaming service) or negative (e.g., a reduction in safety). The insights, gaps, and future research directions identified will encourage researchers, as well as practitioners, to learn from previous crises and be prepared for proactive actions during future crises, thus contributing to more reliable and sustainable transportation systems.
Development of Choked Flow in Variable Nozzle Radial Turbines

In commonly applied one-dimensional choking models for radial turbines, choked flow is assumed to appear in the geometrical throat of each stator and rotor. Coupled and complex three-dimensional effects are not considered. In order to analyze the internal aerodynamic in a radial turbine at off design conditions and before carrying out experimental tests, which in the case of automotive turbocharger are limited by their compact size, computational fluid dynamics (CFD) simulations stand out as a useful tool. This paper presents the study of a variable geometry turbine (VGT) of a commercial turbocharger at off design conditions reaching choked flow, analyzing the presence of this limiting conditions in the stator and rotor under different operation points and VGT positions. Reynolds-averaged Navier-Stokes (RANS) and unsteady RANS simulation have been performed to obtain the flow structures in stator and rotor. The results reveal that the choked effective area mostly depends on the stator vane position and pressure ratio. For the closed VGT position a standing shock wave appears on the stator suction side and expands through the vaneless space. For the opened VGT position the flow is choked at the rotor outlet. However, the evolution of the choked area highly depends on the rotational speed and the secondary flow. A strong interaction with the tip leakage vortex has been identified.
Kinetic Regularities of Methane Dry Reforming Reaction on Nickel-Containing Modified Ceria–Zirconia

The Ni-containing catalysts based on ceria–zirconia doped with Ti and Ti+Nb were prepared by the solvothermal method in supercritical fluids. Ni deposition was carried out by incipient wetness impregnation and the one-pot technique. All materials were investigated by a complex of physicochemical methods (XRD, BET, TEM, H2-TPR). Samples catalytic properties were studied in methane dry reforming in the plug-flow reactor. Conversions of CH4 and CO2, H2/CO ratio, and CO and H2 yields were measured, and detailed kinetics analysis was carried out. The influence of Ni loading method and support modification on the catalytic behavior in the methane dry reforming process was studied. The preparation method of catalysts affects the textural characteristics. For one-pot samples, pore volume and surface area are lower than for impregnated samples. For catalysts on modified supports, strong metal–support interaction was shown to increase catalytic activity. A reduction pretreatment of samples was shown to have significant influence on their catalytic properties. The kinetic parameters such as reaction rate constant at 700 °C, effective activation energy, and TOF were estimated and analyzed.
The Associations Between Serum Concentrations of Irisin and Glucose-dependent Insulinotropic Polypeptide with Body Mass Index Among Women with and Without Polycystic Ovary Syndrome

Background The actions of adipocytokines may be a connective factor between obesity and polycystic ovary syndrome (PCOS). It is suggested that irisin, as recently described cytokine secreted by skeletal muscles and glucose-dependent insulinotropic polypeptide (GIP) as an incretin hormone that induces cytokine expression, may play key roles in favoring obesity in these women. Objectives We aimed to evaluate the association between body mass index (BMI) and serum concentrations of irisin/GIP in women with and without PCOS in the linear and non-linear models. Methods This cross-sectional study was conducted among 159 PCOS and 82 healthy eumenorrheic non-hirsute women aged 20 - 50 years. The fractional-polynomial model was used to develop a model of continuous risk factors, which evaluates non-linear associations between irisin/GIP and BMI among women with and without PCOS. Results Women with PCOS were significantly younger (28.2 ± 5.8 vs. 33.0 ± 7.8 years, P < 0.001) and had a greater BMI (26.6 ± 5.2 vs. 25.2 ± 4.8 kg/m2, P = 0.04) than the healthy counterparts. There were no significant linear and non-linear associations between serum concentration of irisin/GIP and BMI in both groups. The analysis of pair-wise age and BMI matching of women with PCOS and controls confirmed these findings. Conclusions This study showed that irisin and GIP have no association with BMI in women with or without PCOS. This finding could help to better understand the underlying pathophysiological status of PCOS, insulin resistance, and obesity-related disorders. Further large cohort studies are needed to confirm these findings.
ANNE-BABA TUTUM ÖLÇEKLERİ (4-12 YAŞ): GELİŞTİRİLMESİ, GEÇERLİK VE GÜVENİRLİK ÇALIŞMASI

Ebeveynlik, anne-babalarin cocuklarin gelisimini ve davranislarini nasil etkileyebildigini ifade eden bir kavramdir. Anne-babalar, cocuklarin gelisimini yasamin her doneminde etkiler. Calismada, 4-12 yas cocuga sahip anne-babalarin cocuk yetistirme tutumlarini belirlemeye yonelik bir olcum araci gelistirilmesi amaclanmistir. Calismada, alan yazin tarama, madde havuzunun olusturulmasi, uzman gorusleri alinmasi, on uygulama yapilmasi, gecerlik ve guvenirlik calismalari asamalari izlenmistir. Anne-Baba Tutum Olcekleri (4-12 Yas) adi verilen olcum aracinin gecerlik ve guvenirlik calismalari neticesinde, olusturulan temel yapiya uygun olarak ayrik yapilardan olusan iki alt olcek elde edilmistir. Bu alt olceklerden biri istendik tutumlari, digeri istenmeyen tutumlari yansitan maddeleri icermistir. Istendik Anne-Baba Tutum Olcegi 14 madde, Istenmeyen Anne-Baba Tutum Olcegi ise 13 maddeden olusmustur. Gecerlik kaniti icin cinsiyet ve cocuk yasi dis olcutune gore analiz yapilmis; her iki olcek puanlarinin anne veya baba olma durumu degiskeninden manidar duzeyde etkilendigi, sahip olunan cocuklarin yas grubuna gore ise degisiklik gostermedigi saptanmistir. Olceklerin Cronbach Alpha ic tutarlik katsayisi, Istendik Anne-Baba Tutum Olcegi icin 0,810 ve Istenmeyen Anne-Baba Tutum Olcegi icin 0,748 olarak hesaplanmistir. Ayri ayri puanlanip degerlendirilen olceklerden alinan yuksek puan, o olcege iliskin tutumun baskin oldugu seklinde yorumlanmaktadir. Calisma bulgularina gore her iki olcegin gecerlik ve guvenirliginin yuksek oldugu, 4-12 yas cocuga sahip ebeveynlerin istendik ve istenmeyen cocuk yetistirme tutumlarinin saptanmasinda kullanilabilecegi dusunulmektedir.
Experimental Study of Scheelite Flotation at Room Temperature

"Peter Lofe Law" has been commonly used in molybdenum tailing flotation of Luanchuan,leading to the high cost of mineral processing,process complexity and increased work load.In accordance with this situation,scheelite flotation at room temperature is applied to recycle scheelite.Through a small closed-circuit test,tungsten concentrates with WO3 22.56% is obtained our of Ore grade of about 0.062% with the recovery rate attaining 83.02%.
Evaluation of Clean Fractionation Pretreatment for the Production of Renewable Fuels and Chemicals from Corn Stover

Organosolv fractionation processes aim to separate the primary biopolymers in lignocellulosic biomass to enable more selective deconstruction and upgrading approaches for the isolated components. Clean fractionation (CF) is a particularly effective organsolv process that was originally applied to woody feedstocks. The original CF pretreatment employed methyl isobutyl ketone (MIBK), ethanol, and water with sulfuric acid as a catalyst at temperatures ranging from 120 to 160 °C. Understanding the feasibility and applicability of organosolv processes for industrial use requires mass balances on the primary polymers in biomass, detailed understanding of the physical and chemical characteristics of the fractionated components, and viable upgrading processes for each fraction. Here, we apply two CF approaches to corn stover, one with MIBK/ethanol/water and acid and the other with MIBK/acetone/water and acid, with the aim of understanding if these fractionation methods are feasible for industrial application. We .
Nurse Leadership Style and Quality of Care in Clinical Setting: a Systematic Review

Background: Nowadays there are mounting concerns about leadership style because of its critical role in job satisfaction and the quality of care of patients. Objectives: To explore different of leadership style to improve quality of care in healthcare setting upon empirical literature published in the last ten years. Design: Literature review. Data sources: A comprehensive electronic database search was conducted in PubMed (2010–2020), Web of Science (2010–2020), CINAHL (2010–2020), Cochrane (2010–2020), to retrieve relevant articles published in English April 2015 and Mei 2020. Review methods: Key terms and phrases associated with leadership style, quality of care and nurses. The abstracts or full texts of research papers were reviewed prior to their inclusion in the review. Results: A total of 9 papers were included in this review. The impact of leadership style to improve quality of care in decreasing cost, increasing patient satisfaction, and patient safety has been identified in a number of research studies. Leadership style is closely related to quality of care, extra effort, effectiveness, job satisfaction, organizational commitment, staff intention to stay, inspirational motivation, general health well being, sex, age, educationl background and nurses’ assigned unit. Various mediating or moderating pathways have been identified with leadership style and quality of care such as work environment, structural empowerment, organizational commitment and job satisfaction. Conclusions: It is vital to choose effective leadership style because this has the potential both to improve quality of care and ensure an adequate nursing workforce. The indirect relationships and predictors of leadership style and quality of care contribute to a more comprehensive understanding of the complex phenomenon of leadership style which in turn may aid the development of effective strategies to address the nursing shortage and increase the quality of patient care.
Principal Effects on Academic Progress Over Time and the Potential Effects of School Context and Principal Leadership Practices

We used interrupted time series to examine the causal effect of principals on school performance over time and whether the trajectory of performance is affected by school context and leadership practices. Results were based on a unique dataset that links responses from the National Schools and Staffing Survey with 10 years of California Academic Performance Index (API) data. These data and methods address a need identified in the literature to examine the effects of principals with more rigorous research designs. Results indicated that improved academic performance does not occur immediately but accrues over time. We estimated both the first-year impact of a principal and the subsequent impact over time. The effect size increased from 0.04 in the first year to 0.21 by year three. Exploratory analyses showed that school context and leadership practices account for a substantial portion of the variation in progress among schools: 25% and 40%, for context and practices, respectively. Although the Schools and Staffing Survey afforded an opportunity to examine teacher and principal responses to academic performance over time, continued study is warranted to systematically and more concretely identify specific leadership practices that impact academic progress over time.
A serendipitous case report of acute pancreatitis complicated by pseudocyst in a patient with COVID-19

Acute pancreatitis is a common gastrointestinal disease, most frequently requiring acute hospitalization. During SARS-CoV-2 (severe acute respiratory syndrome coronavirus-2) pandemic, the etiologic agent of COVID-19, several studies described the involvement of other tissues besides the respiratory tract, such as the gastrointestinal tract. In pancreas, ACE-2 receptor is expressed in exocrine glands and islets, both being targets for the virus and subsequent pancreatic injury. There are few articles which report pancreatic injury in COVID-19 patients but most of them do not report acute pancreatitis. Diagnosing acute pancreatitis in the setting of COVID-19 pandemic is challenging and requires ruling out all other potential causes of pancreatitis. Herein we report a rare case of severe acute pancreatitis.
Environmental performance indicators for assessing sustainability of projects in the Ghanaian construction industry

PurposeRecent reports based on the sustainable development goals (SDGs) have revealed that no country is in line with achieving the targets of the 2030 Agenda for sustainable development, with the slowest progress being witnessed mainly on goals that are focused on the environment. This study examines environmental performance indicators for assessing the sustainability of building projects.Design/methodology/approachThe study uses an explanatory sequential design with an initial quantitative instrument phase, followed by a qualitative data collection phase. An extensive critical comparative review of the literature resulted in the identification of ten environmental sustainability indicators. One hundred and sixty-seven questionnaire responses based upon these indicators from the Ghanaian construction industry were received. Data were coded with SPSS v22, analysed descriptively, and via inferential analysis. These data were then validated through semi-structured interviews with six interviewees who are fellows of their respective professional bodies, a senior academic (professor in construction project delivery) and a government official. Data obtained from the semi-structured validation interviews were analysed through the side-by-side comparison of the qualitative data with the quantitative data.FindingsThe findings from the study suggest that all the indicators were important in assessing building projects' environmental sustainability across the entire life cycle. Key among the identified indicators is the effects of the project on “water quality, air quality, energy use and conservation, and environmental compliance and management”. The interviewees further agreed to and confirmed the importance of these identified indicators for assessing the environmental sustainability of building projects in Ghana.Originality/valueCompared to existing studies, this study adopts the exploratory sequential design to identify and examine the critical indicators in assessing the environmental sustainability across the entire lifecycle of building projects in a typical developing country setting, i.e. Ghana. It reveals areas of prime concern in the drive to place the local construction industry on a trajectory towards achieving environmental sustainability.
Studying the coherence of studentsʼ portrayed representations of the atomic structure - Connections with conceptions and misconceptions

The present study investigated the association of students’ fundamental ideas and misconceptions about ontological features of atom identity and behavior with the formation of their portrayed representations of the atomic structure. Participants (n = 421) were secondary education students in the eighth, tenth, and twelfth grades. Students’ portrayed representations of the atomic structure were accessed through drawing tasks, while their understanding of the ontological features of atom was measured through a specially designed questionnaire. Latent Class Analysis (LCA), a psychometric method, was applied to the elementary features of the portrayed representations to classify them and test the potential coherence of their representations regarding atomic structure. The LCA revealed three latent classes, which showed a relative coherence in three of the anticipated models, “Particle model,” “Nuclear model,” and “Bohrʼs model. ” Moreover, students’ conceptions and misconception about the ontological features of atom were used as covariates in the LCA and their effects on the above-mentioned class-memberships were estimated. Results indicated a significant effect of students’ conceptions of the atomic ontological features on their portrayed representations of the atomic structure. Implications for theory and practice are discussed.
TEACHER EDUCATION STUDENTS' SELF-ASSESSMENT OF COMPETENCE FOR COOPERATION WITH PARENTS

To be a teacher in the times of today is a great challenge. In order to respond to the needs of modern society, lifelong learning and mastery of numerous competences are expected of the teacher in various fields of work, wherein cooperation with parents is one of the extremely important areas. The goal of the research was to gain insight into self-assessment of competence of students at the Faculty of Teachers Education for future cooperation with parents. The research was implemented during October, 2020, on the sample of 416 students in their first, third and fifth year at the Faculty of Teacher Education of the University of Zagreb (Croatia). It is a futurological research for whose needs a questionnaire was designed with 26 manifest variables on an ordinal, five-degree Likert-type scale. From the manifest set of variables of competence for future cooperation with parents, three composite variables were formed: general cooperation competence, competence for cooperation directed to teaching efficacy, and competence for cooperation directed to communication with parents. The results show that the total student self-assessment of competences for future cooperation with parents is relatively positive, and the existence of statistically significant differences in all three composite variables. Faculties educating future teachers should introduce obligatory courses which would sensitise and capacitate them for future cooperation with parents.
RELEVANCE OF INDICATORS OF SOCIAL EMOTIONAL HEALTH IN DIFFERENT SAMPLES OF ADOLESCENCE

The aim of this research was to determine whether there are statistically relevant differences in Michael J. Furlong's concept of socio-emotional health with meta construct Covitality (SEV factor) between teenage and youth selections, gender, and nationalities in different schools. The participants of the research were 593 respondents from Latvia, aged 11-19 years. Out of the total selection of participants (N=593) there were 318 teens (M=13.01, SD=.84), of them 151 boys and 167 girls; the other group of 274 young people (M=15.85, SD = 1.02), consisted of 132 males and 142 females. To measure the positive aspects of the mental health, A Socio-emotional Health Survey was used (Social Emotional Health Survey – Secondary, SEHS-S, Furlong, You, Renshaw, & O’Malley; 2014; adapted in Latvian by Kņaze, 2017). There were raised 6 questions in the beginning of the research. Results showed higher results for girls on the scale Belief in Others (its substructure Peer Support) and on the scale Emotional Competence (its substructure Empathy), compared to the selection of boys. The results on the scale Engaged living were statistically higher for teens compared to the selection of the youth. Teens also had higher statistical results of Co-vitality compared to the youth. However, the selection of youth showed statistically higher results in the Emotion Regulation (the substructure of Emotional Competence) compared to the selection of teens. The respondents from city schools showed statistically higher results on the scale Belief in Self, Engaged Living and Co-vitality compared to students from town schools. The Regression Analysis highlights the importance of the school environment in Co-vitality, which explains the 3% variance of the socio-emotional health.
A policy construction for sustainable rice food sovereignty in Indonesia

As an agricultural country with large natural resources, Indonesia still has considerable problems in managing food security. This is evidenced by the lack of agricultural land and human resources that can support people's food needs so that the government still imports food from other countries. These issues as; it are feared that population growth and high food consumption power, social exclusion (marginalization of agricultural laborers and agricultural land) will cause food security vulnerability in the future. This Mixed method quantitative and qualitative method by statistical and in-depth interview study involving 169 respondents from many stakeholders such as politicians, academicians, farmers, and students to determine policy construction for sustainable rice food sovereignty in Indonesia. The statistical study shows the rice consumption in Indonesia is correlated to education than the age and gender of the respondents. The study indicating problems such as; the welfare of farmers, the application of price limits for staple goods, and improving the quality of agriculture both natural resources, human resources and the provision of agricultural equipment assistance have not been resolved properly. To build food security, it should be balanced with the application of the concept of food sovereignty which is realized by aligning and maximizing competence between political resources, environmental resources capacity, and environmental diplomacy.
Cationic and Anionic Dye Adsorption on a Natural Clayey Composite

One of the main challenges for environmental sciences today is the effective treatment of dye-laden industrial effluents. This work aimed to study the potential of an untreated (natural occurring clayey composite) red clay (RC) for the adsorption of a cationic dye Basic Navy Blue 2RN (CNB) and anionic dye Drimaren Yellow CL-2R (ADY). We evaluated the effect of pH, dye concentration, and adsorbent concentration on the removal effectiveness to study the absorption process. Also, we studied the adsorption process by analyzing the feasibility of several known adsorption isotherms and kinetic models. The results show that at a pH of less than 4, the CNB and ADY removal percentages were 97% and 96%, respectively. At a pH greater than 8, the CNB and ADY removals were 75% and 25%, respectively. The CNB adsorption happened by chemisorption of a monolayer on iron-containing particles (IPs). In congtrast, the ADY adsorption occurred by monolayer physisorption on kaolinite particles (KPs) and Na, K-rich Laumontite particles (LPs). The Langmuir isotherm model fits very well with CNB experimental data. The Temkin model shows the best fit between the isotherm function and the ADY dye-adsorption data. The pseudo-second-order kinetic model fits the CNB and ADY dye-adsorption data on RC particles. The heterogeneous composition of naturally occurring clay favors different adsorption mechanisms and opens an avenue for the separation process’s engineering.