bluuebunny/crossref_metadata_2025 huggingface dataset:
The Mean Underabundances of Carbon and Aluminum Over the Surface of 21 Com from Its Far-ultraviolet Spectra Recorded by IUE
Authors: Monier Richard
Published: October 2021

The comparison of a coadded International Ultraviolet Explorer (IUE) far-ultraviolet spectrum of 21 Com (A3p SrCr) to that of the standard star α Psa (A3V) reveals large differences in the resonance and low-excitation lines of C i and Al ii. All the lines of these species are significantly weaker in the mean spectrum of 21 Com. The synthesis of these lines consistently yields sizable underabundances for 21 Com of about 0.5 times the solar carbon, and 0.20 times solar for aluminum. Inspection of 10 individual spectra taken over the 24 hr monitoring of 21 Com with IUE on 1991 April 17 does not reveal convincing variations of the lines analyzed here between rotational phases 0.18 and 0.65 of the 2 days period, suggesting a uniform repartition of these 2 elements over the hemisphere of 21 Com observed then.
The Nature of the Sharp-lined A1 V Star HR 4138
Authors: Monier Richard
Published: October 2021

The comparison of far-ultraviolet spectra taken years apart with the IUE shows that the FUV flux of HR 4138 is variable. An abundance analysis of High Accuracy Radial velocity Planet Searcher spectra reveals that the light elements (with Z less than 30) have solar or nearly solar abundances whereas heavier elements are overabundant. Inspection of the Transiting Exoplanet Survey Satellite lightcurves of HR 4138 suggests that the rotational period of HR 4138 may be close to 3 days.
Past, Present, and Future of Mars Polar Science: Outcomes and Outlook from the 7th International Conference on Mars Polar Science and Exploration
Authors: Becerra Patricio , Smith Isaac B. , Hibbard Shannon , Andres Chimira , Bapst Jonathan , Bramson Ali M. , Buhler Peter B. , Coronato Andrea , Diniega Serina , Emmett Jeremy , Grau Galofre Anna , Herny Clémence , Kahre Melinda , Paul Knightly J. , Nerozzi Stefano , Pascuzzo Alyssa , Portyankina Ganna , Rabassa Jorge , Tamppari Leslie K. , Titus Timothy N. , Whitten Jennifer , Yoldi Zuriñe
Published: October 2021

Mars Polar Science is a subfield of Mars science that encompasses all studies of the cryosphere of Mars and its interaction with the Martian environment. Every 4 yr, the community of scientists dedicated to this subfield meets to discuss new findings and debate open issues in the International Conference on Mars Polar Science and Exploration (ICMPSE). This paper summarizes the proceedings of the seventh ICMPSE and the progress made since the sixth edition. We highlight the most important advances and present the most salient open questions in the field today, as discussed and agreed upon by the participants of the conference. We also feature agreed-upon suggestions for future methods, measurements, instruments, and missions that would be essential to answering the main open questions presented. This work is thus an overview of the current status of Mars Polar Science and is intended to serve as a road map for the direction of the field during the next 4 yr and beyond, helping to shape its contribution within the larger context of planetary science and exploration.
Carbon Cycling and Habitability of Massive Earth-like Exoplanets
Authors: Kruijver Amanda , Höning Dennis , van Westrenen Wim
Published: October 2021

As the number of detected rocky extrasolar planets increases, the question of whether their surfaces could be habitable is becoming more pertinent. On Earth, the long-term carbonate-silicate cycle is able to regulate surface temperatures over timescales larger than one million years. Elevated temperatures enhance weathering, removing CO2 from the atmosphere, which is subducted into the mantle. At mid-ocean ridges, CO2 is supplied to the atmosphere from the interior. The carbon degassing flux is controlled by the melting depth beneath mid-ocean ridges and the spreading rate, influenced by the pressure- and temperature-dependent mantle viscosity. The influences of temperature and pressure on mantle degassing become increasingly important for more massive planets. Here, we couple a thermal evolution model of Earth-like planets of different masses with a model of the long-term carbon cycle and assess their surface temperature evolution. We find that the spreading rate at 4.5 Gyr increases with planetary mass up to 3 Earth masses, since the temperature dependence of viscosity dominates over its pressure dependency. For higher-mass planets, pressure dependence dominates and the plates slow down. In addition, the effective melting depth at 4.5 Gyr as a function of planetary mass has its maximum at 3 M
⊕. Altogether, at 4.5 Gyr, the degassing rate and therefore surface temperature have their maximum at 3 M
⊕. This work emphasizes that both age and mass should be considered when predicting the habitability of exoplanets. Despite these effects, the long-term carbon cycle remains an effective mechanism that regulates the surface temperature of massive Earth-like planets.
Maternal Stressful Experience in Giving Birth to Premature Baby in Neonatal Intensive Care Unit Ward
Authors: Syamsu Andi Fatmawati , Febriani A. Dwi Bahagia , Alasiry Ema , Erika Kadek Ayu , Tahir Andi Mardiah , Sunarno Isharyah
Published: October 2021

AIM: This study aimed to determine the stressor of mothers whose baby was treated in Neonatal Intensive Care Unit (NICU) ward and identify the demography parameter which affected the stressor.

METHODS: This cross-sectional study was done in four hospitals in Makassar City. Stressor was evaluated using Parental Scale Stressor (PSS): NICU. Samples were taken consecutively for 30 babies treated in NICU ward for more than 24 h.

RESULTS: On the average, the mothers’ stressors were the situation and view of NICU (2.87), appearance and behavior of the baby (2.78), the role of parents (2.74), and communication relationship between the parents and nurse (2.80). Meanwhile, demography factors (maternal age, age of pregnancy, parity, and experience) did not affect the maternal stress statistically.

CONCLUSION: Premature babies who are treated in NICU ward can be the source of maternal stress, thus provision of education to the mothers can decrease the stress.
The Effect of Pumpkin Seeds Biscuits and Moringa Extract Supplementation on Hemoglobin, Ferritin, C-reactive protein, and Birth Outcome for Pregnant Women: A Systematic Review
Authors: Musaidah Musaidah , Wahyu Atjo , Abdullah Andi Zulkifli , Syafar Muhammad , Hadju Veni , Syam Aminuddin
Published: October 2021

BACKGROUND: According to the WHO data, 40% of maternal mortality in developing countries is related to anemia in pregnancy. Most anemia in pregnancy is caused by iron deficiency and acute bleeding, sometimes even the two interact. The incidence of anemia in pregnancy in Indonesia is quite high, which is around 67% of all pregnant women, with variations depending on each region. About 10–15% of pregnant women are classified as severe anemia which of course will affect the growth and development of the fetus in the womb. Most of the anemia in pregnant women occurs due to malnutrition.

AIM: The objective of the study was to review journals related to the effect of pumpkin seed biscuits and Moringa capsules on hemoglobin (Hb), ferritin, and C-reactive protein (CRP) levels in pregnant women and also the prevention of stunting.

METHODS: Study of literature by collecting relevant literature using online journal data based on PUBMED, Google Search, ELSEVIER, MDPI, DOAJ (Direct Directory of Open Access Journals), or from the bibliography of the articles being searched.

RESULTS: Supplementary food was given to pregnant women by giving pumpkin seeds and Moringa leaf extract impact on improving nutritional status, Hb, ferritin, and CRP levels in pregnant women, as well as preventing adverse pregnancy outcomes such as low birth weight.

CONCLUSION: The provision of pumpkin seed biscuits and Moringa leaf extract to pregnant women can affect Hb, ferritin, and CRP levels and can affect maternal nutritional status and affect pregnancy outcomes.
Sleep Quality among Nurses during the First Year of Coronavirus Disease 2019
Authors: Alharbi Wafa Ibrahim , Mahrus Amani , Elsayed Shadia , Alolayan Albraa B.
Published: October 2021

BACKGROUND: Nurses represent the largest section of the health-care workforce, and lack of sleep has an adverse influence on them, particularly during pandemics such as coronavirus disease 2019 (COVID-19). It causes not only health problem but also poor work results and an increased risk of medical errors. AIM: The goal of the study was to determine the prevalence of poor sleep quality among nurses during COVID-19 outbreaks. MATERIALS AND METHODS: A cross-sectional analysis was conducted among a group of nurses in the Al-Madinah region of Saudi Arabia at the National Guard Health Affairs in 2020 (1st year of the COVID-19 crisis). Data were collected using a validated questionnaire with two sections: Sociodemographic data such as age, nationality, family status, gender, and the Pittsburgh Sleep Quality Index. RESULTS: There were 238 nurses in the report. 37.8% of them were found to be between the ages of 31 and 35, while 24.4% were under the age of 30. The nurses were mostly female (84%). Sleep latency, sleep disruption, overall subjective sleep quality, and sleep length were the most widely identified sleep problems. Sixty-six percent of the nurses said they had a poor night’s sleep. None of the demographic variables analyzed had a significant relationship with overall sleep quality. CONCLUSION: Majority of nurses working at the National Guard Health Affairs and primary health-care centers in Al-Medina, Saudi Arabia, experience poor sleep quality, during the 1st year of COVID-19 crisis regardless of their demographic characteristics.
The Molecular Mechanisms of Hypoglycemic Properties and Safety Profiles of Swietenia Macrophylla Seeds Extract: A Review
Authors: Yudhani Ratih Dewi , Nugrahaningsih Dwi Aris Agung , Sholikhah Eti Nurwening , Mustofa Mustofa
Published: October 2021

BACKGROUND: Insulin resistance (IR) is known as the root cause of type 2 diabetes; hence, it is a substantial therapeutic target. Nowadays, studies have shifted the focus to natural ingredients that have been utilized as a traditional diabetes treatment, including Swietenia macrophylla. Accumulating evidence supports the hypoglycemic activities of S. macrophylla seeds extract, although its molecular mechanisms have yet to be well-established.

AIM: This review focuses on the hypoglycemic molecular mechanisms of S. macrophylla seeds extract and its safety profiles.

METHODS: An extensive search of the latest literature was conducted from four main databases (PubMed, Scopus, Science Direct, and Google Scholar) using several keywords: “swietenia macrophylla, seeds, and diabetes;” “swietenia macrophylla, seeds, and oxidative stress;” “swietenia macrophylla, seeds, and inflammation;” “swietenia macrophylla, seeds, and GLUT4;” and “swietenia macrophylla, seeds, and toxicities.”

RESULTS: The hypoglycemic activities occur through modulating several pathways associated with IR and T2D pathogenesis. The seeds extract of S. macrophylla modulates oxidative stress by decreasing malondialdehyde (MDA), oxidized low-density lipoprotein, and thiobarbituric acid-reactive substances while increasing antioxidant enzymes (superoxide dismutase, glutathione peroxidase, and catalase). Another propose mechanism is the modulating of the inflammatory pathway by attenuating nuclear factor kappa β, tumor necrosis factor α, inducible nitric oxide synthase, and cyclooxygenase 2. Some studies have shown that the extract can also control phosphatidylinositol-3-kinase/ Akt (PI3K/Akt) pathway by inducing glucose transporter 4, while suppressing phosphoenolpyruvate carboxykinase. Moreover, in vitro cytotoxicity and in vivo toxicity studies supported the safety profile of S. macrophylla seeds extract with the LD50 higher than 2000 mg/kg.

CONCLUSION: The potential of S. macrophylla seeds as antidiabetic candidate is supported by many studies that have documented their non-toxic and hypoglycemic effects, which involve several molecular pathways.
Global dynamics of some system of second-order difference equations
Authors: Thai Tran Hong , Dai Nguyen Anh , Anh Pham Tuan
Published: October 2021

In this paper, we study the boundedness and persistence of positive solution, existence of invariant rectangle, local and global behavior, and rate of convergence of positive solutions of the following systems of exponential difference equations

   $ \begin{align*} x_{n+1} = \dfrac{\alpha_1+\beta_1e^{-x_{n-1}}}{\gamma_1+y_n},\ y_{n+1} = \dfrac{\alpha_2+\beta_2e^{-y_{n-1}}}{\gamma_2+x_n},\\ x_{n+1} = \dfrac{\alpha_1+\beta_1e^{-y_{n-1}}}{\gamma_1+x_n},\ y_{n+1} = \dfrac{\alpha_2+\beta_2e^{-x_{n-1}}}{\gamma_2+y_n}, \end{align*} $

where the parameters $ \alpha_i,\ \beta_i,\ \gamma_i $ for $ i \in \{1,2\} $ and the initial conditions $ x_{-1}, x_0, y_{-1}, y_0 $ are positive real numbers. Some numerical example are given to illustrate our theoretical results.
Path-connectedness in global bifurcation theory
Authors: Toland J. F.
Published: October 2021

A celebrated result in bifurcation theory is that, when the operators involved are compact, global connected sets of non-trivial solutions bifurcate from trivial solutions at non-zero eigenvalues of odd algebraic multiplicity of the linearized problem. This paper presents a simple example in which the hypotheses of the global bifurcation theorem are satisfied, yet all the path-connected components of the connected sets that bifurcate are singletons. Another example shows that even when the operators are everywhere infinitely differentiable and classical bifurcation occurs locally at a simple eigenvalue, the global continua may not be path-connected away from the bifurcation point. A third example shows that the non-trivial solutions which bifurcate at non-zero eigenvalues, irrespective of multiplicity when the problem has gradient structure, may not be connected and may not contain any paths except singletons.
Deposition of colloidal metal nanoparticles on zinc oxide nanorods and their influence on visible photoluminescence
Authors: Kulmatova Dilafruz , Baitimirova Margarita , Malinovskis Uldis , Chang Chiung-Fen , Gu Yesong , Tamulevičienė Asta , Erts Donats , Prikulis Juris
Published: October 2021

We examine the influence of colloidal Au and Ag nanoparticles (NP) on hydrothermally grown ZnO nanorods (NR). Individual 60 nm diameter NP and small NP assemblies without formation of large aggregates were deposited on poly-L-lysine covered NR films using the dip-coating method. The evaluation of morphological and optical properties of the obtained ZnO-metal hybrids was done using scanning electron microscopy, photoluminescence (PL) and diffuse reflection spectroscopy. The presence of Au NP selectively suppressed the PL components near 560 nm wavelength associated with ZnO surface defects, whereas equally sized Ag NP resulted in a much smaller change of PL signal, barely above the noise level. The presented results may be useful for tuning the optical properties of hybrid materials in development of sensor or photovoltaic devices.
Optical properties of powder and ceramics of aluminium oxynitride obtained by self-propagating high-temperature synthesis
Authors: Akopdzhanyan Tigran G. , Kondakov Alex A. , Rupasov Sergey I. , Kozlova Anna P. , Pankratov Vladimir
Published: October 2021

The synthesis method of aluminium oxynitride (AlON) powders by nitriding of Al/Al2O3 mixture under highpressure nitrogen is proposed. The novelty of this method consists in adding KClO4 or Mg(ClO4)2 and extra Al into the starting mixture (Al+Al2O3) to cause the exothermal aluminium oxidation reaction, which therefore initiates the aluminium nitriding reaction. The microstructure and phase composition of the AlON powders obtained by self-propagating high-temperature synthesis are demonstrated by means of SEM and XRD analysis. Diffuse reflection spectra of AlON powders have been measured and the values of band-gap energy have been calculated. Optical transmission and reflection characteristics of the AlON ceramic samples sintered from AlON powders at 1930°C have been studied. The influence of the technological parameters of ceramics production on their transparency is revealed – the most transparent sample is obtained from the powders synthesized with the Mg(ClO4)2 additive and sintered for 6 h.
The Effect of Opal-Containing Rocks on the Properties of Lightweight Oil-Well Cement
Authors: Kapustin Fedor L. , Bashkatov N.N. , Hela Rudolf
Published: October 2021

When constructing deep wells for oil and gas production in difficult geological conditions, special lightweight oil-well cements are used. To reduce the density and water separation of the cement slurry as well as to increase the strength, corrosion resistance of cement stone and the quality of well cementing, opal-containing rocks, fly ash, microsphere and other lightening additives are introduced into the cement composition. The influence of sedimentary rocks, such as opoka, tripoli, and diatomite containing from 43 to 81% amorphous silica on the grindability, rheological and physical-mechanical properties of lightweight oil-well Portland cement has been studied. The twelve cement compositions with different content of additives (from 30 to 45%) that meet the requirements of the standard for density, spreadability, water separation, thickening time and flexural strength were selected. The introduction of 45% diatomite or tripoli significantly reduces the duration of cement grinding, provides the cement slurry with water-cement ratio of 0.9 with better density and flexural strength, respectively, 1480 kg/m3 and 1.1–1.5 MPa.
Properties Affecting the Reactivity of Lime
Authors: Sklenářová Dorothea , Dvořák Karel , Dolák Dušan
Published: October 2021

Lime reactivity is the most used identification parameter for lime quality. The reaction may vary in its rate and maximum reached temperature. In this study, the influence of the properties of limestone on the course of the reaction is studied. The samples are thoroughly examined from a geological point of view (geological age and origin, genesis and diagenesis) and their physicochemical properties are described (total porosity, limestone category, chemical analysis, insoluble residue). Different temperatures and isothermal loads were selected to study the effect of the burning process on the lime microstructure. The newly formed CaO is observed by scanning electron microscopy (SEM images). Lime reactivity analysis is performed, and different reaction courses are compared.
Medical education during challenging times
Authors: Karunathilake I. M. , De Abrew A.
Published: October 2021

No abstract available
4-Octyl-Itaconate and Dimethyl Fumarate Inhibit COX2 Expression and Prostaglandin Production in Macrophages
Authors: Diskin Ciana , Zotta Alessia , Corcoran Sarah E , Tyrrell Victoria J , Zaslona Zbigniew , O’Donnell Valerie B , O’Neill Luke A J
Published: October 2021

PGs are important proinflammatory lipid mediators, the significance of which is highlighted by the widespread and efficacious use of nonsteroidal anti-inflammatory drugs in the treatment of inflammation. 4-Octyl itaconate (4-OI), a derivative of the Krebs cycle–derived metabolite itaconate, has recently garnered much interest as an anti-inflammatory agent. In this article, we show that 4-OI limits PG production in murine macrophages stimulated with the TLR1/2 ligand Pam3CSK4. This decrease in PG secretion is due to a robust suppression of cyclooxygenase 2 (COX2) expression by 4-OI, with both mRNA and protein levels decreased. Dimethyl fumarate, a fumarate derivative used in the treatment of multiple sclerosis, with properties similar to itaconate, replicated the phenotype observed with 4-OI. We also demonstrate that the decrease in COX2 expression and inhibition of downstream PG production occurs in an NRF2-independent manner. Our findings provide a new insight into the potential of 4-OI as an anti-inflammatory agent and also identifies a novel anti-inflammatory function of dimethyl fumarate.
DengueChat: A Social and Software Platform for Community-based Arbovirus Vector Control
Authors: Holston James , Suazo-Laguna Harold , Harris Eva , Coloma Josefina
Published: October 2021

The mosquito Aedes aegypti transmits arboviral diseases at extraordinary rates. Dengue alone afflicts 50 to 100 million people each year, with more than 3 billion at risk globally. This indicates that current approaches to prevention and control are inadequate, and that a paradigm shift from one that largely promotes vertical chemical-based control and vaccine development to one that also concentrates on eliminating the mosquito through actions by the communities it plagues is necessary. We have developed a new social and software platform, DengueChat (denguechat.org), to advance community interventions in arbovirus vector control. It is an interactive platform combining open-source digital communication technologies with face-to-face assemblies. It promotes resident participation in evidence collection, reporting, and analysis, and it incorporates pedagogic information, key messaging, and game concepts to motivate communities to implement vector reduction strategies. Using DengueChat, we conducted a 19-month pilot study in five neighborhoods of Managua, Nicaragua. The results strongly suggest that using the software produced value-added features that enhance community engagement. We measured the entomological and behavioral impacts at different time points and relative risk reduction of entomological indices at the end of the study. The entomological results showed significant risk reductions in disease transmission: Ae. aegypti larvae and pupae indices were reduced by approximately 44% in neighborhoods using DengueChat during one epidemic year, whereas control neighborhoods experienced an increase of more than 500%. A cluster permutation test determined that the probability of household positivity was significantly reduced in neighborhoods that participated in DengueChat compared with the reference neighborhoods (P = 0.0265). Therefore, DengueChat is a promising resource for vector control.
Spatiotemporal Dynamic of the RTS,S/AS01 Malaria Vaccine Target Antigens in Senegal
Authors: Diallo Mamadou Alpha , L’Ollivier Coralie , Diongue Khadim , Badiane Aida Sadikh , Kodio Aly , Tall Mamadou Lamine , Sy Mouhamad , Seck Mame Cheikh , Sene Doudou , Ndiaye Mouhamadou , Fall Fatou Ba , Ranque Stéphane , Ndiaye Daouda
Published: October 2021

The RTS,S/AS01 malaria vaccine confers only moderate protection against malaria. Evidence suggests that the effectiveness of the RTS,S/AS01 vaccine depends upon the parasite population genetics, specifically regarding the circumsporozoite protein haplotypes in the population. We investigated Plasmodium falciparum circumsporozoite protein (PfCSP) gene sequences from two endemic sites in 2018 in Senegal. The PfCSP sequences were compared with those retrieved from the Pf3k genome database. In the central repeat region of PfCSP, the distribution of haplotypes differed significantly between the two study sites (Fisher’s exact test, P < 0.001). No 3D7 vaccine strain haplotype was observed in this locus. In the C-terminal region, there was no significant difference in haplotypes distribution between Kedougou and Diourbel (Fischer’s exact test, P = 0.122). The 3D7 haplotype frequency was 8.4% in early samples (2001–2011), but then it contracted in the subsequent years. The extensive plasticity of the P. falciparum genes coding the RTS,S/AS01 vaccine target antigens may influence the immune responses to circulating alleles. Monitoring the genetic diversity baseline and its dynamics over time and space would be instrumental in rationally improving the malaria RTS,S/AS01 vaccine and/or its implementation schedule.
Comment: Ethiopia's Quest for an Appropriate Law: ‘An Answer’ from a Brother from Afar
Authors: Abdo Muradu
Published: October 2021

There have been three waves of foreign influence in the ‘flesh’ and ‘soul’ of the Ethiopian legal regime ranging from the reception of liberal laws from Western modern legal systems to the socialist legality borrowed from the Marxist regimes of the pre-1990s. While the first epoch turned to the West for emulation, socialist legality went East. From the1990s onward, Ethiopia seems to have a hybrid (guramaile) of the two. Once again, Ethiopia’s post-2018 legal regime is rehearsing yet another chapter in its quest for the appropriate law. This comment reflects these pursuits and challenges, and it indicates the need for insight from an indigenous African wisdom of Sankofa.
Social Justice: A Missing Link in A Literary Review of Successful Strategies Utilized by Principals for Retaining African American Teachers
Authors: Goodloe Angela Renee Whi , Ardley Jillian N.
Published: October 2021

Perceptions on leadership training to sustain teachers of color vary in approaches, ideologies, and values. However, what evidence is within the literature to depict what effective principals do to retain, in particular, African American teachers?  In the present study, the authors have reviewed the literature from 2011-2020 through the lens of Critical Learning Theory. This examination led to an extrapolation of categories that indirectly embed social justice as a tool utilized for retaining African American teachers. Nevertheless, many well-known strategies utilized to promote the retention of present-day African American teachers do not include this motivating call-to-action within the parameters of their approach or training of principals. Social justice is an effective tool for supporting Generation X students who willfully and actively participate in digital and physical campaigns against systematic racial injustice. Therefore, educational leaders should transcend authoritative leadership and systematic racism with social justice as a pivotal strategy for teachers of color.
Effect of Technology Integration on Middle School Math Proficiency: A Multiple Linear Regression Study
Authors: McClain Anita , North Teresa
Published: October 2021

Mandates to improve curriculum and instruction and incorporate technology in teaching U.S. K-12 students have failed to improve math proficiency as measured by standardized assessments. Still, 40–60% need remedial coursework in college. Past efforts have focused on incorporating specific technologies. The SAMR approach redirects the effort to focus on how technology is used, aligning with Bloom’s taxonomy. Hierarchical multiple linear regression analysis was used to quantify the contribution of Substitution, Augmentation, Modification, and Redefinition to MAP Growth in math for 644 students taught by eight teachers across 36 class sections at a single Indiana middle school. A wide range in teacher use of technology corresponded to significant (p .05) differences in MAP Growth. Hierarchical multiple linear regression revealed that incorporation of SAMR elements above Substitution explained a small, 2.0%, yet significant (p = .001) part of variation in MAP Growth. At least Most Weeks use of Augmentation added 1.06 points (p = .008), Modification an additional 2.12 points (p = .002), and Redefinition an additional 1.19 points (p = .003) for a combined significant net 4.37-point increase. With all teachers from the same school and only some using technology at high learning levels, the findings led to a recommendation for investment in professional development training rather than focusing on adding specific technology tools.
Prediction of Physics Lesson Learning Level by Students’ Characteristics and Teaching-Learning Process
Authors: Şen Akçay Zeynep , Senemoğlu Nuray
Published: October 2021

The aim of this study is to determine the predictive strength of the students’ characteristics and their teaching-learning process on the physics course learning level.  The variables were also examined according to the academic achievement levels. The study is a descriptive study in survey model. Purposive sampling method was used in the formation of the study group, and 621 ninth grade students were selected for the study group. Cognitive Entry Behaviors (CEB) test, Academic Self-Concept (ASC) scale, Perception of Teaching Service Adequacy (PTSA) scale, Time Allotted to Learning (TAL) form and Learning Level (LL) test were used to collect the data. One-way variance, simple linear regression, and stepwise regression technique were used in the data analysis.  The results of the study showed that the predictive strength of the variables examined about the student and the teaching-learning process was significant. The variability in the learning level is 59.9% in CEB, 18.1% in ASC, and 17.1% in PTSA.  The relationship between the individual time allocated to learning and the learning level is negative, and has the power to explain the variability in learning level by 2.9%.  All variables have the power to explain the variability in learning level by 62.7% together. One of the most important results of this study is that the magnitude of the predictive power of cognitive entry behaviors on the learning level has been revealed. It is thought that the results of the study will contribute to the literature aimed at increasing the learning level of the physics course.
COVID-19 Misinformation on Social Media: A Study of the Understanding, Attitudes and Behaviors of Social Media Users
Authors: Abed Lowai G.
Published: October 2021

The dissemination of information via social media is important, particularly during a public health emergency. However, while it is undoubtedly useful in the targeting of genuine health communications, social media may also be used to spread health-related misinformation at times of disease outbreak or pandemic. The study presented here researches the spread of COVID-19 misinformation in Saudi Arabia, by exploring the relevant understanding, attitudes, and behaviors of Saudi Arabian citizens. The current study comprises a survey of 318 adults in Saudi Arabia, of all age groups and educational backgrounds, and from all Saudi Arabian provinces. This study highlights the significance of COVID-19 misinformation and concludes that, despite risks to public health and wellbeing, Saudi Arabian citizens do not consider COVID-19 misinformation to be a significant problem. Participants in this study were relatively aware of such misinformation and its dangers, but it did not greatly concern them, and generally they declined to tackle it proactively.
One-On-One Technology Mentoring for In-Service Teachers: The Experiences of Future ICT Coordinators
Authors: Top Ercan , Gurer Melih Derya , Baser Derya , Akayoglu Sedat , Akkus Recai
Published: October 2021

With the increasing demands of technology integration by the institutions, educators felt the need to develop themselves professionally. In this study, as a way of professional development, we focused on one-on-one technology mentoring for in-service teachers because the experiences of mentors would shed light on professional development programs in the context of both mentors’ progress and mentoring in-service teachers. Mentors for teachers were assigned to facilitate teachers’ ICT usage and ICT integration skills. The mentorship implementation lasted two semesters with 42 mentors’ participation. The determination of the content of the mentoring process was completely based on the needs and interests of the teachers. After the implementation, the perceptions and experiences of the mentors were asked and coded through content analysis. According to the analysis, the responses of the mentors were grouped into five main categories; (a) affordances of the technology mentoring process, (b) the contribution of the project to the teachers, (c) the contribution of the project to the mentors, (d) the challenges experienced by the mentors, and (e) the weaknesses of and the suggestions for the mentoring process. The findings of this study indicated that future ICT coordinators believed that one-on-one technology mentoring in real school settings is an effective way not only for training in-service teachers but also for creating awareness of being an ICT coordinator and developing ICT mentoring skills.
STEM Literacy of Students in Vocational Education
Authors: Wannapiroon Panita , Nilsook Prachyanun , Techakosit Somsak , Kamkhuntod Sayam
Published: October 2021

Knowledge of all disciplines is more or less equally important and crucial but, in education management, it is important to integrate disciplines so that the knowledge is useful and can be applied to create new things, solve problems and prevent future threats. STEM education for vocational student is not only a trend in education, but also an instructional approach that focuses on students and will lead to sustainable knowledge and learning. This research studied documents that explored the importance of STEM literacy for vocational school students in Thailand. Vocational education must be aligned with Thailand 4.0 and Industrial 4.0 models, and thus vocational schools must adjust their learning approach to be aligned with the Education 4.0 model. As vocational school students will be valuable to the development of the country, STEM literacy must be integrated into a project-based learning model which is a teaching approach for creating invention and innovation. The result of the study shows that STEM literacy for Thai vocational education consists of six components: identifying a STEM problem, exploring and acquiring new knowledge, applying STEM concepts, solving the STEM problem, communicating STEM information and making a STEM decision. The aforementioned components can be used to create a STEM literacy evaluation form for vocational school students.
The Relationship between Technology Literacies and Proactive Personalities of Secondary School Mathematics Teachers
Authors: Ozkan Hidiroglu Yeliz , Hidiroglu Caglar Naci , Tanriogen Abdurrahman
Published: October 2021

The aim of this study is to determine the level of technology literacy and proactive personality of secondary school mathematics teachers, the relationship between technology literacy and proactive personalities, and how much of the proactive personality is explained by the technology literacy, according to the perceptions of secondary school mathematics teachers. The study was designed around a relational survey model, which is a quantitative research technique. The population of the study consisted of mathematics teachers working in secondary schools in Turkey and the sample was 380 secondary school mathematics teachers selected by simple random sampling method.  Technology Literacy Scale and Proactive Personality Scale were used as data collection instruments. Descriptive statistics, correlation and regression analyses were used to analyse the data. The secondary school mathematics teachers' perceptions about technology literacy and proactive personality were found to be high. In addition, there was a moderate level positive and significant correlation between technology literacy and proactive personality of the secondary school mathematics teachers. Finally, the proactive personality of secondary school mathematics teachers explained their technology literacy at 30.7% level.
Investigating the Effects of Tablet-Based Math Interventions: A Meta-Analysis
Authors: Aspiranti Kathleen B. , Larwin Karen H.
Published: October 2021

There is debate over the effectiveness of using touch-screen tablet technology on overall student learning gains. This article provides a meta-analysis of studies that used tablets for the delivery of math interventions, programs, or apps to increase student math achievement. A total of 20 group design studies with 2,805 participants were included in the meta-analysis. Overall, tablet-based math interventions provided moderate positive effects for student math gains. Significant moderator variables included participant ethnicity, and socio-economic status, selecting a specific app for use, minutes in intervention, dependent variable, and type of control group. Discussion focuses on the need for more rigorous methodology and reporting of participant and design variables in future studies and the implications for researchers and practitioners when using tablets as a delivery method for math interventions.
Jean Paul und das Buch der Bücher: Zur Poetisierung biblischer Metaphern, Texte und Konzepte
Authors: Kita-Huber Jadwiga
Published: October 2021

Kaum etwas hat Jean Pauls Schreiben so nachhaltig inspiriert wie die Bibel. Bezüge auf das Buch der Bücher, die verschiedenen Traditionslinien seiner Auslegung und die Rezeption in der Kulturgeschichte haben in der ästhetischen Reflexion und im Erzählwerk Jean Pauls vielfältige und überraschende Spuren hinterlassen. Die Studie geht diesen Bezügen in seinem Gesamtwerk detailliert nach und berücksichtigt dabei sowohl ihren bibelgebrauchs- und diskursgeschichtlichen Kontext als auch zeitgenössische Debatten. Unter Zuhilfenahme bislang unbeachteter Exzerpte und Briefe wird nachgewiesen, wie eng Jean Paul mit der zeitgenössischen Bibelforschung vertraut war und wie sehr er sich von ihr faszinieren ließ. Die Textanalysen konzentrieren sich auf Jean Pauls biblisch fundierte poetologische Metaphorik (u.a. "Vorschule der Ästhetik"), auf die Eigenheiten seines poetischen Sprachstils, die durch Lutherbibel, aber auch Mystik und Pietismus vermittelt sind ("Hesperus") sowie auf die Parallelen ausgewählter bibelkritischer und Jean Pauls eigener poetologischer Konzepte ("Leben Fibels"). Dabei erweist sich, dass der Dichter nicht nur biblische Bilder, Stilregister und Textmuster für sein Werk fruchtbar macht, sondern zudem Autor- und Textproduktionsmodelle aus der Bibelphilologie aufgreift, insbesondere um sein Selbstverständnis als Autor und seine Erzählmodelle zu entwickeln. Sein ambivalent-provokatives Schreiben wirft auch neues Licht auf das komplexe Problem der ‚Säkularisierung‘ um 1800.
A Study to Assess the Effectiveness of Vitis vinifera soaks on Hemoglobin Level among Anemic Students in a Selected Colleges at Vellore
Authors: Kumar Dinesh , . Gomathy , Devi Hemam Sangeeta
Published: October 2021

An experimental study was conducted to assess the effectiveness of vitis vinifera soak on hemoglobin level among anemic students in selected colleges at Vellore. Quantitative evaluative approach was used for this study and the researcher adopted a true experimental research design. The sample was conducted among 60 anemic students in selected colleges at Vellore, in which 30 were in experimental group and 30 were in control group. The sample was selected by using Probability simple random sampling technique with lottery method. The researcher adopted Kristen M. Swanson theory as a conceptual framework. There are six different hypothesis were tested in this study. The Structured interview schedule was used to collect the demographic and clinical variable. Sahli’s hemoglobinometer was used to assess the hemoglobin level. Experimental group received intervention of vitis vinifera soak for 21 days in the morning and control group advised to follow daily routine and no intervention is given. In both groups, on 22nd day the researcher was conducted post test by using same tool. The data were analyzed using both descriptive and inferential statistics. The study revealed that the mean post test score in control group was 9.29 where as in experimental group the mean post test score was 9.82, the mean difference was 0.53. The obtained ‘t’ value was 2.24 which was statistically significant (P<0.01). These findings revealed that the students in experimental group had increased hemoglobin level after administering vitis vinifera soak compared to the control group.
Abordări conceptuale și metodologii de măsurare a calității vieții. O analiză descriptivă
Authors: Buligescu Bianca
Published: October 2021

The main objective of this paper is to describe the logic of the conceptual approaches regarding the quality of life, and to identify the main dimensions and measurable indicators of quality of life. The identification of the main conceptualizations of quality of life is an essential step, in the context in which quality of life is often ambiguous or has multiple meanings. Although often used as an umbrella term which encompasses many aspects of human life, we aim to describe the logic of the integrative approaches regarding well-being/ quality of life. The identification of the main dimensions and measurable indicators of quality of life with a brief description of those, will serve to operationalize a list of life quality dimensions. Keywords: quality of life research; quality of life measurement; quality of life theory; social indicators; economic indicators. ●●●●● Principalele obiective ale acestei lucrări sunt de a descrie logica abordărilor conceptuale privind calitatea vieții și de a identifica principalele dimensiuni, respectiv indicatori măsurabili ai calității vieții. Analiza principalelor conceptualizări ale calității vieții reprezintă un pas esențial, în contextul în care utilizarea conceptului de calitatea vieții este adesea ambiguă sau cel puțin cu sensuri multiple. Deși utilizat adesea ca un termen-umbrelă care înglobează mai multe aspecte ale vieții umane, ne propunem să descriem logica abordărilor integrative privind calitatea vieții. Identificarea principalelor dimensiuni și indicatorii măsurabili ai calității vieții, cu o descriere pe scurt a acestora, va servi la operaționalizarea unei liste de dimensiuni a calității vieții. Cuvinte-cheie: cercetarea calității vieții; măsurarea calității vieții; teoria calității vieții; indicatori sociali; indicatori economici.
PPC Intranacional para bens agrícolas com quebras estruturais
Authors: Martins Hecirlane Gomes , Barbosa Rafael Barros
Published: October 2021

Este artigo analisa o efeito de quebras estruturais sobre a velocidade de convergência de seis bens agrícolas dispostos em nove cidades brasileiras. A escolha por bens agrícolas e pela abordagem intranacional deve-se à tentativa de evitar a presença de alguns tipos de vieses que reduzem a velocidade de convergência de preços como: viés de agregação, viés setorial e viés relacionado à volatilidade da taxa de câmbio e a barreiras comerciais. Dos resultados encontrados, verificou-se que 90% das combinações entre cidades e bens agrícolas apresentaram modificação na velocidade de convergência devido à presença de quebra estrutural. Esse resultado aponta que instabilidades econômicas podem afetar a dinâmica dos preços agrícolas e que se desconsideradas, podem tornar as estimativas da meia-vida viesadas.
Índice de gestão tecnológica e capital social de produtores dos municípios de Cedro, Iguatu e Cariús no Ceará
Authors: Almeida Maria Rosa Dionísio , Campos Kilmer Coelho
Published: October 2021

Objetiva-se elaborar e analisar índices de gestão tecnológica e de capital social de produtores dos municípios de Cedro, Iguatu e Cariús no Estado do Ceará. Os dados de natureza primária foram coletados em 2017 por amostragem não probabilística por conveniência. Na amostra, 49 produtores inseriram-se numa escala de 0,37 a 0,54, índices considerados médios, para os níveis de gestão tecnológica e capital social, respectivamente. Na escala de 0,62 a 0,78, índices considerados altos, encontraram-se 28 e 35 produtores para o índice de gestão tecnológico e de capital social, respectivamente. Apenas dois produtores apresentaram índice de gestão tecnológica alto (escala entre 0,79 e 1,00) e nenhum produtor foi identificado com índice de capital social alto. As variáveis que mais contribuíram para a gestão tecnológica foram a prestação de serviços; controle de fluxo de caixa; controle da produção e controle de custos. Já as variáveis que mais impactaram no nível de acumulação de capital social foram a participação e sugestão em reuniões; pagamento de taxa/cota/mensalidade; desempenho de função para associação e participação nas eleições.
Pengaruh Kunjungan Wisatawan terhadap Kesejahteraan Masyarakat
Authors: Harahap Muhammad Arfan , Alam Anjur Perkasa , Permata Sari Dian
Published: October 2021

This study aims to analyze the influence of tourist visits on the welfare of the community around the tourism object (study on the community around the religious tourism object in Tuan Guru Besilam Babussalam Village). The source of this research data was obtained through a questionnaire given to the respondents. Processing and analysis of data in this study using SPSS 22.0 and Microsoft Office Excel. The results showed that tourist visits had a significant effect on the welfare of the community around the tourist attraction by 66%.
The Concept of Zakat on Income in Malaysia and Its Beginning of Implementation
Authors: Nor Paizin Muhsin
Published: October 2021

One of zakat’s objectives is to keep the economic division in society to a minimum. It is to foster a just and equitable economic environment in society, in which the wealthy do not become excessively wealthy, and the poor do not become more destitute. Thus, implementing zakat on income is appropriate and consistent with efforts to accomplish this goal. In general, the management of zakat on income in Malaysia entails fatwas and the decisions they entail, and how they are implemented. This study used the historical method to present the backgrounds. The discussions show that zakat on income has been vigorously implemented in Malaysia. They began with the efforts necessary to enact it and end with its integration into the implementation system. Thus, it hopes to yields positive results in terms of zakat collection and can be used by the asnaf to improve their living standards.
Kampanye Infak di Media Sosial dan Niat Perilaku Infak Masyarakat Saat Pandemi Covid-19
Authors: Muttaqien Muhammad Khaerul , Mas’ud Tajudin
Published: October 2021

The development of donation collection and public donation behavior has been increasingly visible since the Covid 19 outbreak spread to various countries in the world, including Indonesia. Optimizing the use of social media for the zakat infaq alms campaign and the use of electronic services for paying zakat infaq alms are two phenomena that occurred during the Covid-19 pandemic. The focus of this research is on the determinants of infaq behavior during the Covid-19 pandemic, especially the intention of the Indonesian Muslim community in paying infaq through fundraisers who carry out infaq campaigns on social media. For this reason, the variables of trust in infaq fundraisers who carry out infaq campaigns on social media and attitudes towards online infaq and social media features are used to test their intention to pay infaq. All of these variables were tested using primary data from questionnaires distributed to social media users who are Muslim and live in the DKI Jakarta, Bogor and South Tangerang areas. The PLS SEM analysis technique was used in this study to assess the measurement model, structural model and its predictive relevance. The results showed that trust in infaq fundraisers and attitudes towards online infaq as well as social media features used by infaq fundraisers had a significant effect on their intention to pay infaq through infaq fundraisers who carried out social solidarity campaigns on social media during the Covid-19 pandemic.
Pengaruh Pelatihan Kerja, Kepemimpinan Transformasional dan Kemampuan Kerja terhadap Kinerja Karyawan
Authors: Sangidah Ummi , Prayekti Prayekti , Septyarini Epsilandri
Published: October 2021

This study aims to determine the effect of the independent variables, namely job training, transformational leadership, and work ability on the dependent variable, namely employee performance. This study uses quantitative research methods. The population is all employees. The sample is 73 samples. The sampling technique used was the census technique. The data collection method in this study was a questionnaire distributed to all employees. The data analysis technique used multiple linear regression, t test (partial), f test (simultaneous), and coefficient of determination (R2). The results of this study indicate that job training has a positive and significant effect on employee performance, transformational leadership has a positive and significant effect on employee performance, work ability does not have a positive and significant effect on employee performance, and job training, transformational leadership, and work ability have an effect. simultaneously on employee performance.