Miracle-dz/UniFAR-FTUs huggingface dataset:
How Leader and Follower Mindfulness Relate to Performance and OCB through Conversation Quality and Empathy: A Moderated Mediation Model

HOW LEADER AND FOLLOWER MINDFULNESS RELATE TO PERFORMANCE AND OCB THROUGH CONVERSATION QUALITY AND EMPATHY: A MODERATED MEDIATION STUDY Arianna C. White-Levatich Old Dominion University, 2021 Director: Dr. Debra Major Interest within the organizational research community regarding mindfulness has recently surged. Little research, however, has examined how employees’ mindfulness may influence interactions between leaders and followers. This study examined how followers’ trait mindfulness related to two specific aspects of dyadic interactions: leader – member conversational quality (LMCQ) and follower empathy toward a leader. Further, the study examined how this influence extended (via LMCQ and leader-oriented empathy) to task performance and organizational citizenship behavior (OCB), two important workplace outcomes for followers. Leader mindfulness was also expected to have a significant influence on the relationships, in that it was expected to strengthen the expected positive relationships between follower mindfulness and outcomes. Survey data were collected from 105 white-collar employees and 40 leaders (N = 105). Path-analytic results indicated a positive relation between follower trait mindfulness and both LMCQ and empathy for leaders. LMCQ was also significantly related to employee task performance, as was empathy for the leader with OCB. Follower trait mindfulness was significantly indirectly related to task performance and OCB via the mediators, as hypothesized. The moderating influence of leader mindfulness on relationships between follower trait mindfulness and LMCQ/empathy for the leader was not significant. The implications of these results for theory and practice are discussed.
Circular RNA hsa_circ_0001658 regulates apoptosis and autophagy in gastric cancer through microRNA-182/Ras-related protein Rab-10 signaling axis

ABSTRACT Gastric cancer (GC) is a tumor with high incidence and lack of early diagnostic markers. The aim of this study was to explore novel regulatory circular RNAs (circRNAs) in GC and their underlying mechanisms. Differentially expressed circRNAs were analyzed using the Gene Expression Omnibus (GEO). mRNA and miRNA expression levels were determined using real-time reverse transcription polymerase chain reaction (RT-qPCR). Protein expression was detected using Western blotting. Cellular functions were evaluated using the cell counting kit-8 (CCK-8) assay and flow cytometry analysis. Immunofluorescence analysis was used to visually identify microtubule-associated protein 1 light chain 3 (LC3) puncta on a per-cell basis. Furthermore, dual-luciferase reporter and RNA pull-down assays were performed to verify the interaction between microRNA (miR)-182 and circ_0001658/Ras-related protein Rab-10 (RAB10). Circ_0001658 was identified to be aberrantly expressed in GC tissues and was demonstrated in GC cell lines (AGS and HGC27) in vitro. MiR-182 bound to circ_0001658 and RAB10. Circ_0001658 and RAB10 were upregulated, whereas miR-182 was suppressed in AGS and HGC27 cells. GC cell viability and autophagy were inhibited and apoptosis was promoted after circ_0001658 knockdown, and the cellular functions were reversed by downregulating miR-182. Moreover, upregulated RAB10 neutralized the effects of miR-182 on cell viability, autophagy, and apoptosis of GC cells. Silencing circ_0001658 restrained cell viability, suppressed autophagy, and promoted apoptosis of GC cells by sponging miR-182 to suppress the expression of RAB10. Therefore, circ_0001658 may be a potential therapeutic target for GC.
The Dimensionality of Reading Self-Concept: Examining Its Stability Using Local Structural Equation Models

For results from large-scale surveys to inform policy and practice appropriately, all participants must interpret and respond to items similarly. While organizers of surveys assessing student outcomes often ensure this for achievement measures, doing so for psychological questionnaires is also critical. We demonstrate this by examining the dimensionality of reading self-concept—a crucial psychological construct for several outcomes—across reading achievement levels. We use Programme for International Student Assessment 2018 data (N = 529,966) and local structural equation models (LSEMs) to do so. Results reveal that reading self-concept dimensions (assessed through reading competence and difficulty) vary across reading achievement levels. Students with low reading achievement show differentiated responses to the two item sets (high competence–high difficulty). In contrast, students with high reading achievement have reconciled responses (high competence–low difficulty). Our results highlight the value of LSEMs in examining factor structure generalizability of constructs in large-scale surveys and call for greater cognitive testing during item development.
Evaluation of Efficiency of Echinodorus palaefolius (J.F. Macbr.) Involved in the Clarias gariepinus (Burchell, 1822) Culture for Water Quality Recovery and Fish Growth Support

Intensive catfish [Clarias gariepinus(Burchell, 1822)] cultivation produces organic waste that decreases water quality. The aquaponics system utilizes fish waste for plant growth to produce useful and economical products. This study aims to analyze and evaluate the best density of Mexican sword plant/water Jasmine [Echinodorus palaefolius (J. F. Macbr.)] in reducing waste from intensive catfish aquaculture. The research method used a completely randomized design (CRD) with four treatments with three replications. A plastic tub with a size of 38 cm × 12 cm × 30 cm filled with sand was used for plant media, while for catfish rearing containers, a 70 L tub with a water volume of 40 L was used. The fish used in this experiment were catfish fry with a size of 7 cm ± 0.8 cm, a weight of 5.14 g ± 0.45 g, with a stocking density of one fry per liter. Catfish fry were fed with floating pellet feed of 30 % protein content, and the feeding was done at satiation. The treatments were T1 = without plants, T2 = 150 g m plants, T3 = 250 g m plants, and T4 = 350 g m plants. Furthermore, all data were analyzed through ANOVA (One-way analysis of variance) and the Duncan’s multiple range test to measure significant variations among the treatments using SPSS (version 17, USA). The results revealed that T4 was the best treatment in terms of nutrient removal efficiency of TAN, NO2, NO3, and PO4 at the rate of 23.80 %, 48.19 %, 52.99 % and 26.11 %, respectively. Moreover, growth performances of fish fry fed diet in T4 also were significantly (P < 0.05) higher than other fishes of different treatments. Regarding these findings, E. palaefolius could work well to maintain water quality during C. gariepinus cultivation and even accelerated C. gariepinus growth at the end of the period.
Perceived impacts of woody encroachment on ecosystem services in Hluhluwe, South Africa

Anticipating, avoiding, and managing disruptive environmental change such as regime shifts and the impacts it has on human well-being is a key sustainability challenge. Woody encroachment is a globally important example of a regime shift that occurs in savanna systems, where a large fraction of the world’s poor live. Woody encroachment is known to negatively impact a variety of ecosystem services, but few studies have investigated the impact of woody encroachment on local land users and their livelihoods. In this study, we conducted semi-structured interviews to determine how different land users—local subsistence communities and managers of conservation tourism areas—perceive woody encroachment in the Hluhluwe region of South Africa, how it affects the ecosystem services they rely upon, and what costs they incur in undertaking activities to reverse woody encroachment. Most interviewees perceived trees to be increasing in the landscape (83%). However, perceptions about the causes of woody encroachment differed: community members cited the reduced usage of trees as the reason for woody encroachment, whereas conservation managers mostly attributed the change to increased CO2. Most community members felt woody encroachment was harmful to their household and general wellbeing, citing loss of grazing for livestock, and fear of attacks by wild animals and criminals as the main impacts. In contrast, conservation managers perceived woody encroachment to have both harmful and beneficial impacts, with the main negative impacts being loss of grazing for wildlife and impacts on tourism through reduced visibility for game viewing. All the conservation areas invested in tree clearing compared to only 20% of respondents in the community areas, where an average of ZAR367 (US$25) was spent per year on clearing, compared to ZAR293,751 (US$20,000) and ZAR163,000 (US$11,000) spent in private game reserves and government reserves, respectively. Our findings highlight the negative impacts of ongoing woody encroachment, the differentiated impacts it has on different land users, and differences in capacity to combat encroachment. These findings highlight the need for state-funded management interventions to support clearing of trees in encroached areas, particularly in communal areas.
Evaluation of vascular and neural parameters in amblyopia

Aim: To evaluate the changes of vessel densities and retinal nerve fiber layer thicknesses in strabismic amblyopia. Materials and Methods: Fifteen cases with unilateral strabismic amblyopia and 20 healthy subjects were enrolled. The vessel densities in the superficial capillary plexus (SCP), deep capillary plexus (DCP), choriocapillary plexus (CCP), foveal avascular zone (FAZ) and foveal vessel density (FD-300) were assessed using OCT-A (AngioVue, RTVue XR Avanti; Optovue, Inc., Fremont, CA). Retinal nerve fiber layer thickness (RNFLT) measurements were evaluated using SS-OCT. Results: The mean foveal, parafoveal, and perifoveal vessel densities in SCP, DCP, CCP and FAZ area were similar between the amblyopic, fellow and healthy eyes. The RNFLT in all quadrants were higher in amblyopic eyes compared to fellow eyes and controls and the difference was statistically significant in the nasal quadrant (p<0.001). Conclusion: Our results indicate that the vessel densities in retinal vascular plexuses, CCP and FAZ area were similar in amblyopic eyes, fellow eyes and healthy controls. Further large scale studies will be valuable .
Rotating Stall Observations in a High Speed Compressor: Part 1 — Experimental Study

In this two part paper the phenomenon of part span rotating stall is studied. The objective is to improve understanding of the physics by which stable and persistent rotating stall occurs within high speed axial flow compressors. This phenomenon is studied both experimentally (part 1) and numerically (part 2). The experimental observations reported in Part 1 are now explored through the use of 3D unsteady RANS simulation. The objective is to both to validate the computational model and, where possible, explore some physical aspects of the phenomena.Unsteady simulations are presented, performed at a fixed speed with the three rows of variable stator stagger vanes adjusted to deliberately mismatch the front stages and provoke stall. Two families of rotating stall are identified by the model, consistent with experimental observations from Part 1.The first family of rotating stall originates from hub corner separations developing on the stage 1 stator vanes. These gradually coalesce into a multi-cell rotating stall pattern confined to the hub region of the stator and its downstream rotor. The second family originates from regions of blockage associated with tip clearance flow over the stage 1 rotor blade. These also coalesce into a multi-cell rotating stall pattern of shorter length scale confined to the leading edge tip region. Some features of each of these two patterns are then explored as the variable stator vanes are mismatched further, pushing each region deeper into stall.The numerical predictions show a credible match with the experimental findings of Part 1. This suggests that a RANS modelling approach is sufficient to capture some important aspects of part span rotating stall behavior. © 2014 ASME
MEDIA PEMBELAJARAN FISIKA MENGGUNAKAN SMARTPHONE DENGAN PENDEKATAN STEM (SCIENCE, TECHNOLOGY, ENGINEERING, AND MATHEMATICS)

ABSTRAKMemanfaatkan teknologi dapat mendukung ketercapaian tujuan pembelajaran, salah satunya dapat menciptakan pembelajaran yang bervariatif dan meningkatkan motivasi belajar sehingga akan mempengaruhi hasil belajar peserta didik. Penelitian ini menggunakan desain penelitian N. Nieveen yang terdiri dari tahap pendahuluan, pengembangan, dan penilaian. Tujuan penelitian ini, untuk mengetahui validitas dan efektifitas media pembelajaran fisika materi gerak parabola agar dapat dinyatakan layak untuk digunakan. Tempat penelitian dilakukan di SMAN 3 Bondowoso pada kelas X MIPA. Hasil data yang diperoleh menggunakan instrumen tes berupa lembar instrumen validitas, soal pre-test, dan post-test. Teknik analisis data menggunakan validitas ahli, validitas audience, dan persamaan N-Gain. Hasil rata-rata validitas oleh 2 validator ahli media sebesar 90,4% dinyatakan sangat valid dan validator ahli pengguna sebesar 92,18% dinyatakan sangat valid. Hasil efektivitas pada uji lapangan sebesar 87,27% dapat dinyatakan sangat efektif dan nilai N-Gain sebesar 83,27% sehingga dalam kategori tinggi. Berdasarkan hasil penelitian tersebut maka media pembelajaran fisika menggunakan smartphone dengan pendekatan STEM (Science, Technology, Engineering, and Mathematics) layak untuk digunakan. Kata kunci: media pembelajaran; smartphone; pendekatan STEM. ABSTRACTTechnology can promote the achievement of learning goals, one of which can create varied learning and increase motivation to learn so that it will affect students' learning outcomes. This study uses N. Nieveen's research design which consists of preliminary, development and evaluation stages. The aim of this study is to determine the validity and effectiveness of physics learning materials for parabolic motion material so that it can be declared usable. The research site was carried out at SMAN 3 Bondowoso in class X Science. Data results obtained using test instruments in the form of instrument validity cards, pre-test and post-test questions. The data analysis technique uses expert validity, audience validity and the N-Gain equation. The results of the mean validity by 2 expert media validators of 90.4% were declared very valid and 92.18% of the expert user validators were declared very valid. The results of the efficiency in the field test of 87.27% can be said to be very efficient and the N-Gain value of 83.27%, which places it in the high category. Based on the results of the study, it is possible to use physics learning materials using a smartphone with a STEM (science, technology, engineering and mathematics) approach.Keywords: multimedia learning; smartphone; approach STEM.
Long-term Immunity Against Hepatitis B Virus After Routine Immunization Among Adults Visiting Primary Care Centers in Riyadh, Saudi Arabia

Objective This study aimed to determine the persistence of induced immunity against hepatitis B virus (HBV) among adults routinely vaccinated during their infancy and correlate the level of induced immunity with participant characteristics. Methodology This was a cross-sectional study conducted among visitors to primary care centers of the Ministry of Health (MOH) in Riyadh, the Kingdom of Saudi Arabia (KSA) during the period from August 2020 to January 2021. The study population included healthy adults of both genders who had received full doses of the HBV vaccine in infancy. Data related to participant characteristics were collected using a self-administered questionnaire. A blood sample was then taken from each participant to measure the serum level of hepatitis B surface antigen (HBsAg), antibodies against HBsAg (anti-HBs), and antibodies against hepatitis B core antigen (ani-HBc). Results A total of 400 subjects participated in the study; the mean age of the cohort was 25 years. Almost all of them were Saudis (99.30%), and more than half (57.50%) were males. Only 24.30% had an anti-HBs antibodies level of ≥10 IU/L, and all respondents were negative for HBs antigen. No significant association between participant characteristics and anti-HBs antibody levels was found. Conclusion A decline in immunity many years after HBV vaccinations taken in infancy has been well-documented. However, for low-risk populations, the boosting of HBV vaccines is probably unnecessary since the immune memory provides sufficient protection despite low or undetectable anti-HBs antibodies.
Phylogeny of the land snail Levantina reveals long‐distance dispersal in the Middle East

Populations of rock‐dwelling snails are often isolated from each other due to outcrops of suitable rock forming islands separated by uninhabitable habitats. By chance, some snail taxa were able to rapidly extend their distribution ranges or colonise distant areas. The helicid Levantina from the Middle East has a very large range compared with related rock‐dwelling genera. We present here the first comprehensive molecular phylogeny of Levantina suggesting that its range is not extended due to Levantina being an old taxon, but rather as a result of a rapid expansion, probably during the Pliocene. These snails originated in the south‐east of present‐day Turkey, from where they colonised the Levant, the Asir Mountains in Saudi Arabia, the Alborz Mountains and the Central Taurus as well as the island of Cyprus. Eventually, these snails also reached the south‐eastern Aegean region by several independent expansion events. In particular, the Arabian species are not closely related to those from the Levant as previously presumed, but are sister to one of the species from south‐eastern Turkey. The occurrence of a Levantina spiriplana complex in the Aegean is most likely a result of intentional transport of these edible snails, as all three lineages found there originated from the Levant. Our results further suggest that the species‐level taxonomy of the genus needs an integrative revision.
Correlation Analysis between Rind Penetration Resistance and Morphological Characters and Chemical Components in Maize Stalk

In order to investigate the influencing factors of stalk strength,relationships between rind penetration resistance and morphological characters of the third internode of maize stalk above ground and the content of chemical components were investigated in maize varieties with different lodging resistance.The results were as follows:There was greater difference on the ear height and minimal diameter than on other characteristics among different varieties.Rind penetration resistance analysis indicated that the strong lodging resistance variety that Demeiya No.1 was the highest.The chemical composition analysis showed that acid detergent fiber(ADF),acid detergent lignin(ADL)and neutral detergent fiber(NDF)content of the third internode of maize stalk above ground of the weak lodging resistance variety Kenyu No.6 was the lowest.Through the above characteristics of the related analysis revealed that rind penetration resistance was significant negatively correlated with the ear height and significant positively correlated with ADL and ADF content.Therefore,in breeding maize lodging resistance varieties,attention should be paid to the above three main stalk characteristics.
Can non-functional adrenal incidentaloma be ranked among cardiovascular risk factors?

Objectives: We aimed to evaluate the potential association of a nonfunctional adrenal incidentaloma (NFAI) with cardiovascular risk factors. Methods: Forty-three patients over the age of 40 found to have NFAI and 28 healthy controls were included in this prospective study. The control group was selected from individuals who were similar in age and gender. Glucose, insulin, c-peptide, lipid profile, erythrocyte sedimentation rate, high sensitivity c-reactive protein, fibrinogen and 25-hydroxy cholecalciferol and carotid artery intima-media thickness (CIMT) were measured in both groups. Results: Waist circumference, erythrocyte sedimentation rate, triglyceride and CIMT values were found higher in the patient group (p = 0.002, p < 0.001, p = 0.001, p = 0.024, respectively). It was observed that 10 (23.2%) of the patients had no suppression with 1 mg dexamethasone but suppression was provided with 2 mg dexamethasone for 2 days, and all of these patients with ‘possible autonomous cortisol secretion’ had at least one comorbidity. While there was no significant difference between the groups in terms of the presence of comorbidity, a significant difference was found in terms of diabetes mellitus (90% of the patients with autonomous cortisol secretion, 24.2% of those who were suppressed with 1 mg dexamethasone had diabetes mellitus; p < 0.001; Chi-square test). Conclusions: Higher waist circumference, erythrocyte sedimentation rate, triglyceride and CIMT values in our patients with NFAI and increased diabetes mellitus frequency in patients with autonomous cortisol secretion suggest that NFAI may be one of the cardiovascular risk factors.
Glucose-stimulated calcium dynamics in beta cells from C57BL/6J, C57BL/6N, and NMRI mice: A systematic comparison of activation, activity, and deactivation properties in tissue slices

Although mice are a very instrumental model in islet beta cell research, possible phenotypic differences between strains and substrains are largely neglected in the scientific community. In this study, we show important phenotypic differences in beta cell responses to glucose between NMRI, C57BL/6J, and C57BL/6N mice, i.e., the three most commonly used strains. High-resolution multicellular confocal imaging of beta cells in acute pancreas tissue slices was used to measure and quantitatively compare the calcium dynamics in response to a wide range of glucose concentrations. Strain- and substrain-specific features were found in all three phases of beta cell responses to glucose: a shift in the dose-response curve characterizing the delay to activation and deactivation in response to stimulus onset and termination, respectively, and distinct concentration-encoding principles during the plateau phase in terms of frequency, duration, and active time changes with increasing glucose concentrations. Our results underline the significance of carefully choosing and reporting the strain to enable comparison and increase reproducibility, emphasize the importance of analyzing a number of different beta cell physiological parameters characterizing the response to glucose, and provide a valuable standard for future studies on beta cell calcium dynamics in health and disease.
Overexpression of thioredoxin‐2 attenuates age‐related muscle loss by suppressing mitochondrial oxidative stress and apoptosis

Skeletal muscle mass is regulated by intracellular anabolic and catabolic activities. Increased catabolic activity can shift the balance towards net protein breakdown and muscle atrophy. Mitochondrial oxidative stress activates catabolism and is linked to muscle loss. Reducing mitochondrial oxidative stress is thus a plausible approach to prevent muscle atrophy. We tested this concept in age‐dependent muscle atrophy by genetically overexpressing the mitochondrial antioxidant thioredoxin‐2 (TXN2).