bluuebunny/crossref_metadata_2025_split huggingface dataset:
Prospective Teachers’ Metaphorical Perceptions of "School, Teacher, Principal and Superintendent"
Authors: GÖKTAŞ Erkan 
Published: March 2023

Research on prospective teachers' perceptions and descriptions of the essential education
concepts helps to determine their educational viewpoint before starting the profession. In
this study, it is aimed to reveal and analyse the metaphorical perceptions of prospective
teachers about the concepts of school, teacher, principal, and superintendent. The study is
planned in a basic qualitative research design. Participants of the study were 95 students
attending to Selcuk University in the 2021-2022 academic year. Participants were recruited
by using convenience sampling. Data were collected by using an open-ended questionnaire
form and were analysed by content analysis technique. A total of 358 metaphors related to
the concepts of school, teacher, principal, and superintendent were produced by teacher
candidates. Of these, 91 were related to schools, 103 to teachers, 89 to principals and 75 to
superintendents. Findings showed that the metaphors reflect both positive and negative
perceptions about the concepts. Prospective teachers often used positive metaphors for
the concept of school, teacher, and principal. However, it was noted that the metaphors
reflecting negative connotations for the concept of superintendent were relatively more.
The improvement of Schottky barrier diodes fabricated only by B ion implantation doping accomplished by refinement of the electrode structure
Authors: Seki Yuhei , Chandra Saha Niloy , Shigematsu Seiya , Hoshino Yasushi , Nakata Jyoji , Oishi Toshiyuki , Kasu Makoto 
Published: March 2023

Abstract
In this study, we fabricated p-type diamond Schottky barrier diodes (SBD) and performed selective B doping for the p-type channel and Ohmic region by double ion implantation. SBD were redesigned in the configuration and shape of Ohmic and Schottky electrodes to improve device characteristics. The fabricated device exhibited a rectification ratio of approximately 2400 because of decreasing the parasitic resistance to 2.7 × 107 Ω and the ideality factor to 2.7. The Schottky barrier height was obtained to be 1.04 eV. It is indicated that the diamond SBD fabricated only by B ion implantation is improved by refinement of the electrode structure.
A research study on creation of seed hubs for increasing indigenous production of pulses in India
Authors: Ramakrishna Kommagoni , Reddy T. Prabhakar , Rajashekhar M. , Rajashekhar B. , Shankar Adi , Jahan Afifa , Reddy Jagan Mohan 
Published: March 2023

KVK, Palem, Nagarkurnool district Telangana state was allotted with the seed hub project entitled with Creation of seed hubs for increasing indigenous production of pulses in India. With the project buy back policy KVK was procured 284 quintals of Greengram (WGG 42), 571 quintals of Redgram (PRG 176), 234 quintals of Blackgram (PU 31) and 2.2 quintals of Horsegram (CHRG 19) from the farmers and INR 13, 49,989 was earned by the 51 farmers as additional income from seed production. Total 1,091 quintals of pulses seed was procured by KVK, Palem, during 2016 to 2020. (4years).Seed production was implemented on farmers’ fields across different villages of Nagarkurnool and Jogulamba Gadwal districts based on farmers experience in pulse seed production through bye back agreement. These quality seeds covered through our intervention nearly 7,690 hectares, contributing 16 to 18 per cent of total cropped area under cultivation of pulses in Nagarkurnool district. The total gross amount realized from pulses seed production programme in the four years (2016-17, 2017-18, 2018-19 and 2019-20) was INR 1.24 crores. The net profit to KVK, Palem, is INR 41, 92,086. The profit generated out of seed sale has been utilized by Seed-Hub for development of additional facilities/workforce as needed for scaling quality seed production of pulses. It is noteworthy that this programme generated employment opportunities for rural youth, farm workers and farm women as seed production is a skill oriented work. Regular and timely management practices reduce additional expenditure while producing seeds, so that no additional labour and special input costs were incurred. Socio-economic status of the farmers has improved due to generation of additional income through seed production as compared to general cultivation.
Astrometric Calibration of the Beijing–Arizona Sky Survey
Authors: Peng Xiyan , Qi Zhaoxiang , Zhang Tianmeng , Wu Zhenyu , Zhou Zhimin , Nie Jundan , Zou Hu , Fan Xiaohui , Jiang Linhua , McGreer Ian , Yang Jinyi , Dey Arjun , Ma Jun , Wang Jiali , Schlegel David , Zhou Xu 
Published: March 2023

Abstract
We present the astrometric calibration of the Beijing–Arizona Sky Survey (BASS). The BASS astrometry was tied to the International Celestial Reference Frame via the Gaia Data Release 2 reference catalog. For effects that were stable throughout the BASS observations, including differential chromatic refraction and the low charge transfer efficiency of the CCD, we corrected for these effects at the raw image coordinates. Fourth-order polynomial intermediate longitudinal and latitudinal corrections were used to remove optical distortions. The comparison with the Gaia catalog shows that the systematic errors, depending on color or magnitude, are less than 2 milliarcseconds (mas). The position systematic error is estimated to be about −0.01 ± 0.7 mas in the region between 30° and 60° of decl. and up to −0.07 ± 0.9 mas in the region north of decl. 60°.
Toward Horizon-scale Accretion onto Supermassive Black Holes in Elliptical Galaxies
Authors: Guo 郭 Minghao 明浩 , Stone James M. , Kim Chang-Goo , Quataert Eliot 
Published: March 2023

Abstract
We present high-resolution, three-dimensional hydrodynamic simulations of the fueling of supermassive black holes in elliptical galaxies from a turbulent medium on galactic scales, taking M87* as a typical case. The simulations use a new GPU-accelerated version of the Athena++ AMR code, and they span more than six orders of magnitude in radius, reaching scales similar to that of the black hole horizon. The key physical ingredients are radiative cooling and a phenomenological heating model. We find that the accretion flow takes the form of multiphase gas at radii less than about a kpc. The cold gas accretion includes two dynamically distinct stages: the typical disk stage in which the cold gas resides in a rotationally supported disk, and relatively rare chaotic stages (≲10% of the time) in which the cold gas inflows via chaotic streams. Though cold gas accretion dominates the time-averaged accretion rate at intermediate radii, accretion at the smallest radii is dominated by hot virialized gas at most times. The accretion rate scales with radius as

M

̇

∝

r

1

/

2

when hot gas dominates, and we obtain

M

̇

≃

10

−
4

–

10

−
3

M

⊙

yr

−
1

near the event horizon, similar to what is inferred from EHT observations. The orientation of the cold gas disk can differ significantly on different spatial scales. We propose a subgrid model for accretion in lower-resolution simulations in which the hot gas accretion rate is suppressed relative to the Bondi rate by

∼

(

r

g

/

r

Bondi

)

1

/

2

. Our results can also provide more realistic initial conditions for simulations of black hole accretion at the event horizon scale.
On the Spectral Evolution of Hot White Dwarf Stars. IV. The Diffusion and Mixing of Residual Hydrogen in Helium-rich White Dwarfs
Authors: Bédard A. , Bergeron P. , Brassard P. 
Published: March 2023

Abstract
In the framework of our extensive modeling study of the spectral evolution of white dwarfs, we present here a new set of detailed calculations of the transport of residual hydrogen in helium-rich white dwarfs. First, we investigate the so-called float-up process at high effective temperatures, whereby the upward diffusion of trace hydrogen leads to the formation of a hydrogen atmosphere. We examine the dependence of this phenomenon on the initial hydrogen abundance and on the strength of the radiative wind that opposes gravitational settling. Combined with our empirical knowledge of spectral evolution, our simulations provide new quantitative constraints on the hydrogen content of the hot helium-dominated white dwarf population. Then, we study the outcome of the so-called convective dilution process at low effective temperatures, whereby the superficial hydrogen layer is mixed within the underlying helium-rich envelope. In stark contrast with previous works on convective dilution, we demonstrate that, under reasonable assumptions, our models successfully reproduce the observed atmospheric composition of cool DBA stars, thereby solving one of the most important problems of the theory of spectral evolution. This major improvement is due to our self-consistent modeling of the earlier float-up process, which predicts the existence of a massive hydrogen reservoir underneath the thin superficial layer. We argue that the trace hydrogen detected at the surface of DBA white dwarfs is, in most cases, of primordial origin rather than the result of external accretion.
Restaurer la confiance : pour une gouvernance éthique des organisations
Authors: Martineau Joé T. , Lulin Emmanuel , Gril Emmanuelle 
Published: March 2023

Traditionnellement, la gouvernance au sein des organisations était centrée sur la performance, le leadership et les revenus. Or, depuis quelques décennies, nombre d’organisations font face à une grave crise de confiance. Et si le rôle de la gouvernance était désormais de rebâtir cette confiance et de la maintenir, tout en donnant le ton en matière d’éthique ?
La littératie permettrait-elle une meilleure gestion algorithmique ?
Authors: Gaudet Marie-Claude , Parent-Rocheleau Xavier , Pasquier Vincent 
Published: March 2023

Il ne nous viendrait jamais à l’idée de confier le volant à une personne qui n’a pas son permis de conduire et qui n’a jamais pris la route. Mais, de manière surprenante, peu de gens sont choqués par le fait que l’on confie des algorithmes de gestion à des travailleurs et à des gestionnaires qui ne savent pas vraiment comment les utiliser !
Étude du manuscrit du Journal du Kauthara de Cung&#8239Giũ&#8239Nguyên
Authors: Pham Van Quang 
Published: March 2023

Notre objectif est ici d’évoquer la trajectoire littéraire de Cung Giũ Nguyên à partir du manuscrit mis au net du Journal du Kauthara. Cette approche génétique permet d’interroger, dans une perspective sociologique, la façon dont l’écrivain construit progressivement sa position dans le champ littéraire, c’est-à-dire sa stratégie d’élaboration d’un habitus. Après une brève présentation biographique, nous aborderons les conditions d’archivage et d’édition de son œuvre, avant de nous focaliser sur le Journal du Kauthara : sa genèse paradoxale et son caractère hybride.
Influence of Popular Culture on Consumer Behaviour of Youth in Sri Lanka
Authors: Ihalagama Swarna , Harischandra M. K. Ruwan 
Published: March 2023

In Sri Lanka recently, youth antisocial behavior has become a serious national and worldwide concern: Due to adolescent antisocial behavior over the previous 20 years, the rule of law and the law are challenged: Quantitative and qualitative data are collected. Snowball theory was used to collect qualitative data. In addition to this, the behavior of randomly selected individuals is studied through participant observation. Data was collected by conducting consensus interviews with individuals. According to police reports, ganging is a major issue. The previously mentioned organizational structure is well-known in urban areas, although it is less prevalent in rural areas. However, throughout the past two decades, the antisocial behavior of the youth has had a direct or indirect impact on Sri Lanka's popular culture. Additionally, juvenile gangs use a variety of tactics to trick and mislead victims of crime. Their actions are presented to the audience as vibrant and appealing visual images.
Cullin 3–Mediated Regulation of Intracellular Iron Homeostasis Promotes Thymic Invariant NKT Cell Maturation
Authors: Yarosz Emily L , Kumar Ajay , Singer Jeffrey D , Chang Cheong-Hee 
Published: March 2023

Abstract
The E3 ubiquitin ligase cullin 3 (Cul3) is critical for invariant NKT (iNKT) cell development, as iNKT cells lacking Cul3 accumulate in the immature developmental stages. However, the mechanisms by which Cul3 mediates iNKT cell development remain unknown. In this study, we investigated the role of Cul3 in both immature and mature thymic iNKT cells using a mouse model with a T cell–specific deletion of Cul3. We found that mature iNKT cells lacking Cul3 proliferated and died more than wild-type cells did. These cells also displayed increased glucose metabolism and autophagy. Interestingly, we found that tight regulation of iron homeostasis is critical for iNKT cell development. Without Cul3, mature iNKT cells harbored higher levels of cytosolic iron, a phenotype associated with increased cell death. Taken together, our data suggest that Cul3 promotes iNKT cell development partially through intracellular iron homeostasis.
Direct transfer for thrombectomy in patients with large vessel occlusions on computed tomography angiography results in safe revascularization
Authors: Eaton Ryan G. , Duru Olivia , Powers Ciaran James 
Published: March 2023

INTRODUCTION:
Endovascular mechanical thrombectomy (EVT) has become the standard of care treatment for both intravenous tissue plasminogen activator eligible and ineligible patients presenting with an acute ischemic stroke due to a large vessel occlusion (LVO) within 24 h. Due to limited access to EVT, patients typically present to a non-EVT-capable center and are transferred to a larger, EVT-capable center. Quality improvement work has focused on improving this process to shorten the time to definitive recanalization of the affected vessel.

MATERIALS AND METHODS:
We retrospectively reviewed 98 consecutive patients who were transferred from an outside institution to our Comprehensive Stroke Center from July 2019 to September 2021. Thirty-nine of these patients had a diagnosed LVO at the transferring center on computed tomography angiography and were transferred directly to the angiography suite (DAT) whereas 59 patients were transferred to our Emergency Department for further imaging (EDT). Three of the patients in the DAT group did not undergo thrombectomy as there was no LVO identified on catheter angiography and were excluded from the study.

RESULTS:
Demographic and medical comorbidities were similar between the two groups. The DAT group had more severe strokes on presentation compared to the EDT group as measured by the National Institute of Health Stroke Severity (17.5 vs. 15, P = 0.048). Last known well (LKW) to arrival time in the angiography suite was significantly shorter in the DAT group (280 min vs. 474 min, P = 0.002). Patients in the DAT group were revascularized faster than the EDT group relative to LKW (320 min vs. 534 min, P < 0.001) while door-to-groin puncture and door-to-revascularization rates were similar. Modified Rankin score, incidence of symptomatic intracranial hemorrhage, and need for decompressive hemicraniectomy were similar between the two groups. Successful revascularization as measured by thrombolysis in cerebral infarction score occurred at a higher rate in the DAT group but was not statistical significance (97% vs. 85%, P = 0.055).

DISCUSSION/CONCLUSION:
DAT resulted in safe EVT compared to EDT with significant improvement in LKW to angiography suite presentation and subsequent vessel recanalization. Patients who underwent DAT experienced similar functional outcomes compared to EDT despite experiencing more severe strokes.
National Early Warning Score 2 is superior to quick Sequential Organ Failure Assessment in predicting mortality in sepsis patients presenting to the emergency department in India
Authors: Verma Ankur , Farooq Aasiya , Jaiswal Sanjay , Haldar Meghna , Sheikh Wasil Rasool , Khanna Palak , Vishen Amit , Ahuja Rinkey , Khatai Abbas Ali , Prasad Nilesh 
Published: March 2023

Background:
High in-hospital mortality in sepsis patients remains challenging for clinicians worldwide. Early recognition, prognostication, and aggressive management are essential for treating septic patients. Many scores have been formulated to guide clinicians to predict the early deterioration of such patients. Our objective was to compare predictive values of quick Sequential Organ Failure Assessment (qSOFA) and National Early Warning Score 2 (NEWS2) with respect to in-hospital mortality.

Methods:
This prospective observational study was conducted in a tertiary care center in India. Adults with suspected infection with at least two Systemic Inflammatory Response Syndrome criteria presenting to the emergency department (ED) were enrolled. NEWS2 and qSOFA scores were calculated, and patients were followed until their primary outcome of mortality or hospital discharge. The diagnostic accuracy of qSOFA and NEWS2 for predicting mortality was analyzed.

Results:
Three hundred and seventy-three patients were enrolled. Overall mortality was 35.12%. A majority of patients had LOS between 2 and 6 days (43.70%). NEWS2 had higher area under curve at 0.781 (95% confidence interval [CI] (0.59, 0.97)) than qSOFA at 0.729 (95% CI [0.51, 0.94]), with P < 0.001. Sensitivity, specificity, and diagnostic efficiency to predict mortality by NEWS2 were 83.21% (95% CI [83.17%, 83.24%]); 57.44% (95% CI [57.39%, 57.49%]); and 66.48% (95% CI [66.43%, 66.53%]), respectively. qSOFA score had sensitivity, specificity, and diagnostic efficiency to predict mortality of 77.10% (95% CI [77.06%, 77.14%]); 42.98% (95% CI [42.92%, 43.03%]); and 54.95% (95% CI [54.90%, 55.00%]), respectively.

Conclusion:
NEWS2 is superior to qSOFA in predicting in-hospital mortality for sepsis patients presenting to the ED in India.
Prognosis of Patients with Venous Thromboembolism and Cancer in India
Authors: Chukka Kereena , Sharma Pritee , Ramnadh G Satyendra , Yerramsetty Vamsikrishna , Mohammad Fayazuddin , Gupta Prem Chand , Atturu Gnaneswar 
Published: March 2023

Introduction:
Venous thromboembolism (VTE) is common in cancer patients and is considered one of the leading causes of death. Although activation of coagulation system is linked to tumor biology and considered as poor prognostic feature, there are several temporary/provoking factors such as perioperative period, immobilization, and debility that may cause VTE in these patients. It is not clear whether patients with such provoked VTE have different prognoses compared to patients without provoked VTE.

Aim:
To understand the overall prognosis of patients with cancer-associated thrombosis deep vein thrombosis (DVT) and whether there is a difference in survival between patients who underwent surgery (with or without chemotherapy) and patients who did not undergo surgery.

Materials and Methods:
This is a combined retrospective and prospective study. Electronic medical records of all patients who underwent VTE treatment between September 2014 and September 2019 were reviewed. Only patients who had DVT in the lower limb associated with malignancy were included in the study. Demographics, clinical, type, stage and type of cancer, and prophylactic treatment received and mortality data were collected.

Results:
Of 1364 patients treated for VTE, 86 patients (6.3%) had cancer-associated DVT. The mean age was 57 years (range 26–80 years) and 52 patients (60.46%) were female. The most common malignancies were cervix (15.11%), breast (12.79%), and colorectal (12.79%). Majority (68.60%) of the cancer patients were in the stages III and IV, other than having malignancy the most common risk factors were age, obesity, and postsurgery. Forty-three patients had surgery (with or without chemotherapy/radiotherapy). The left leg was commonly involved (53.48%) and the site of thrombus was in iliac (51.68%), femoral (16.85%), or popliteal veins (2.24%). All patients were initially started on low-molecular-weight heparin (LMWH) and then switched to Non-Vitamin K antagonist oral anticoagulants (NOAC) in 29 patients (33.72%) and VKA in 43 patients (50%). In seven patients, LMWH was continued (8.13%). Fifty-seven out of 86 patients (66.27%) were available for follow-up. Eighteen out of 57 patients (31.57%) were alive with an overall mortality of 59.64% and 1 year mortality of 37.5%. In patients who underwent surgery (with or without chemotherapy/radiotherapy), the overall mortality was 58.13% compared to 85.71% in patients who did not undergo surgery.

Conclusion:
VTE in cancer patients is not uncommon in India and is associated with high mortality. Patients with provoked DVT due to surgery (perioperative period) might have better survival compared to patients who did not undergo surgery.
Evaluation of Morphological Alteration in Human Mandible
Authors: Bohra Ankita , Harsh Aditya 
Published: March 2023

Background:
The aim of the study is to evaluate the morphological alterations of the mandiblebetween different age groups, gender, and dentition status.

Materials and Methods:
A total of 1000 patients (500 males and 500 females), panoramic radiographs, were included in the study out of 57,640 patients in the outpatient department for 1 year. The patients were categorized according to age, gender, and dentition status that were assessed.

Results:
Statistically significant relation was observed between the mean antegonial angle, depth, gonial angle, and mandibular cortical index (MCI) with respect to the age, gender, and dentition status. The value of antegonial angle decreased with age and edentulousness, while antegonial depth increased with age and edentulousness. Females had higher values of antegonial angles as compared to males for antegonial angle, while the opposite is true for antegonial depth.

Conclusion:
There is an inherent asymmetry in the antegonial regions between the right and left sides. The gonial angle can serve as an adjuvant and additional forensic parameter, which guides for age group assessment and gender identification. MCI can be used as a diagnostic tool for screening patients with or without osteoporotic changes.