bluuebunny/crossref_metadata_2025_split huggingface dataset:
ASSESSMENT OF GENERAL PROFESSIONAL COMPETENCES OF BACHELOR’S DEGREE STUDENTS THROUGH A DIGITAL SIMULATOR OF PEDAGOGICAL ACTIVITY
Authors: Киселев Б.В. 
Published: June 2023

В статье описана модель оценки профессиональной компетенции будущего педагога с помощью цифрового симулятора педагогической деятельности. Рассмотрена возможность применения симулятора в подготовке будущих педагогов, который позволит выявить у бакалавров уровень владения общепрофессиональными компетенциями и повысить эффективность профессиональной подготовки. Цель статьи – определить и обосновать возможность оценки общепрофессиональных компетенций бакалавров посредством цифрового симулятора педагогической деятельности. В представленной модели определены показатели и индикаторы знаний, умений и навыков будущих педагогов. К данным показателям отнесены умения разрабатывать учебные программы, планировать результаты согласно требованиям ФГОС, организовывать учебную деятельность, контролировать результаты обучающихся, осуществлять учебную работу на основе специальных научных знаний. В статье описываются этапы проверки компетенций, которые дифференцированы в соответствии с действиями учителя, производимыми в реальном классе. В результате прохождения симулятора программа дает количественную и качественную оценку знаний, умений и навыков будущих педагогов и формирует рекомендации в случае неверных педагогических действий в процессе прохождения виртуального урока.
The article describes a model for the assessment of professional competence of a teacher-to-be using a digital simulator of pedagogical activity. It considers the possibility of using a simulator in the training of teachers-to-be, which will allow to identify the level of proficiency in general professional competences of bachelor’s degree students and increase the efficiency of professional training. The purpose of the article is to determine and substantiate the possibility of assessment of general professional competencies of bachelor’s degree students through a digital simulator of pedagogical activity. The presented model defines indicators and indicators of knowledge, skills and abilities of teachers-to-be. These indicators include the ability to develop training programs, to plan results according to the requirements of the Federal State Educational Standard, the ability to organize educational activities, to monitor the results of students, carry out educational work based on special scientific knowledge. The article describes the stages of competence testing, which are differentiated in accordance with the actions of the teacher in a real classroom. As a result of passing the simulator, the program gives a quantitative and qualitative assessment of knowledge, skills and abilities to teachers-to-be and forms recommendations in case of incorrect pedagogical actions during a virtual lesson.
Rotation Reduces Convective Mixing in Jupiter and Other Gas Giants
Authors: Fuentes J. R. , Anders Evan H. , Cumming Andrew , Hindman Bradley W. 
Published: June 2023

Abstract
Recent measurements of Jupiter’s gravitational moments by the Juno spacecraft and seismology of Saturn’s rings suggest that the primordial composition gradients in the deep interior of these planets have persisted since their formation. One possible explanation is the presence of a double-diffusive staircase below the planet’s outer convection zone, which inhibits mixing across the deeper layers. However, hydrodynamic simulations have shown that these staircases are not long-lasting and can be disrupted by overshooting convection. In this Letter, we suggests that planetary rotation could be another factor for the longevity of primordial composition gradients. Using rotational mixing-length theory and 3D hydrodynamic simulations, we demonstrate that rotation significantly reduces both the convective velocity and the mixing of primordial composition gradients. In particular, for Jovian conditions at t ∼ 108 yr after formation, rotation reduces the convective velocity by a factor of 6, and in turn, the kinetic energy flux available for mixing gets reduced by a factor of 63 ∼ 200. This leads to an entrainment timescale that is more than 2 orders of magnitude longer than without rotation. We encourage future hydrodynamic models of Jupiter and other gas giants to include rapid rotation because the decrease in the mixing efficiency could explain why Jupiter and Saturn are not fully mixed.
A Shallow-water Model Exploration of Atmospheric Circulation on Sub-Neptunes: Effects of Radiative Forcing and Rotation Period
Authors: Landgren Ekaterina , Nadeau Alice , Lewis Nikole , Kataria Tiffany , Hitchcock Peter 
Published: June 2023

Abstract
Sub-Neptune-type exoplanets are abundant in our Galaxy yet have no solar system analogs. They exist in a broad range of stellar forcing and rotational regimes that are distinctly different from solar system planets and more commonly studied hot Jupiters. Here we present simulations that explore global atmospheric circulation of sub-Neptunes generated with a two-dimensional shallow-water model, SWAMPE. We explore the circulation regimes of synchronously rotating sub-Neptunes with a focus on the interaction of planetary rotation rate and radiative timescale in a variety of stellar insolations. In highly irradiated, short-timescale regimes, our models exhibit high day–night geopotential contrasts. As the timescales become longer, the geopotential contrasts and longitudinal variability decrease, while temporal variability increases. The transition from day-to-night flow to jet-dominated flow is primarily driven by the radiative timescale. Strong- and medium-forcing regimes exhibit transitions between day-to-night flow and jet-dominated flow at similar points in the parameter space. The weak-forcing regime differs owing to comparatively stronger rotational effects. Planetary rotation period dominates in determining equator-to-pole geopotential contrast. Our simulations exhibit higher time variability when either radiative timescale or rotation period is long.
Investigating the Stability and Distribution of Surface Ice in Mercury’s Northernmost Craters
Authors: Glantzberg Allison K. , Chabot Nancy L. , Barker Michael K. , Mazarico Erwan , Siegler Matthew A. , Martinez Camacho Jose M. , Hamill Colin D. , Rivera-Valentín Edgard G. , Meyer Heather , Bertone Stefano , Deutsch Ariel N. 
Published: June 2023

Abstract
Observations made by Earth-based radar telescopes and the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft provided compelling evidence for water ice in Mercury's polar craters. In our investigation, we constructed higher-resolution (125 m pixel−1) digital elevation models (DEMs) for four of the largest northernmost craters, Kandinsky, Tolkien, Chesterton, and Tryggvadóttir. The DEMs were leveraged to model solar illumination and the thermal environment, products that were used to identify permanently shadowed regions and simulate surface temperatures. From these models, we predicted the regions of surface stability for ice and volatile organic compounds. These predictions were then compared against the Arecibo radar, Mercury Laser Altimeter (MLA), and Mercury Dual Imaging System (MDIS) data. Our radar analysis shows that areas of high radar backscatter are correlated with areas predicted to host surface ice. Additionally, we identify radar backscatter heterogeneities within the deposits that could be associated with variations in ice purity, mantling of the ice, or ice abundances. The MDIS analysis did not reveal conclusive evidence for ice or volatiles at the surface, while MLA results support the presence of water ice at the surface in these craters. However, evidence for boundaries between the surface ice and low-reflectance volatile organic compounds, as suggested could be present by our models, was inconclusive owing to the limited MESSENGER data in these regions. BepiColombo’s upcoming orbital mission at Mercury has the opportunity to obtain new measurements of these high-latitude craters and test our predictions for the distribution of surface volatiles in these environments.
Les vies successives du cercle méridien portatif de Rigaud n° 2
Authors: Soulu Frédéric 
Published: June 2023

Au milieu du xixe siècle, la lunette méridienne portative émerge pour mesurer la position sur terre ou déterminer l’heure. Le caractère de mobilité de l’instrument ne remet-il pas en cause en permanence l’état de stabilité de fonctionnement lentement obtenu pour la précision de la mesure ? Nous examinons cette question à travers le parcours du cercle méridien n° 2 de Rigaud. Utilisé au service de la révision des longitudes de la Carte de France par l’astronome Antoine Yvon Villarceau (1813-1883), il est détruit lors des évènements de la Commune. Restauré car nimbé d’une aura de précision, il sert dès lors dans plusieurs expéditions astronomiques de la fin du xixe siècle, dont certaines à vocation impériale. Prêté à l’observatoire jésuite de Madagascar, il en devient l’instrument méridien fixe dans le premier quart du xxe siècle.
Improvement in functional and aesthetic outcome in postburn contracture of neck following split skin grafting using goniometer
Authors: Dhua Subha , Raheel Shifa 
Published: June 2023

Introduction:
Although the mortality and morbidity from burns have diminished significantly over the last few decades, these do not truly reflect whether the victim could lead a normal life, owing to postburn contractures (PBCs) and other deformities, which have functional and aesthetic implications.

Objective:
The main objective of this study was to compare the improvement in cervico-mental angle after surgery, using a goniometer; and to assess the postoperative complications, cosmetic outcome and patient satisfaction after contracture release and split-thickness skin grafting.

Methods:
In this prospective study, we have studied a total of 20 patients with PBCs of neck, who underwent contracture release and split skin grafting. The preoperative cervico-mental angles were compared to postoperative measurements using a goniometer.

Results:
In this study, we observed that the mean cervicomental angle before the surgery was 85.5° ± 12.8° and after the surgery was 106.4° ± 7.8°. The percentage improvement was 24.3% which was found to be statistically significant (P < 0.001). Patients were also classified based on age, gender, mechanism and classification of burns, time elapsed since burn injury. Postoperative complications, cosmetic outcome and patient satisfaction were also studied.

Conclusion:
PBCs can affect a patient's life functionally, aesthetically, and psychologically. Split-thickness skin grafting is a safe and reliable option for PBC neck. This causes improvement in cervicomental angle and thus range of movements of the neck in different axes (as measured by a goniometer). lthough the mortality and morbidity from burns have diminished significantly over the last few decades, these do not truly reflect whether the victim could lead a normal life, owing to postburn contractures (PBCs) and other deformities, which have functional and aesthetic implications. In this prospective study, we have studied a total of 20 patients with PBCs of neck, who underwent contracture release and split skin grafting. The preoperative cervico-mental angles were compared to postoperative measurements using a goniometer, and a significant improvement was noted. Overall patient satisfaction was also very good. Hence, split thickness skin grafting is a safe and reliable option for PBC neck.
A comparative study of fat transfer with compression therapy versus compression therapy alone in the treatment of hypertrophic burn scars
Authors: Saroha Ravi , Langer Vijay , Singh S. K. 
Published: June 2023

Introduction:
Hypertrophic scars (HS) remain the main cosmetic concern after complete healing of burns for both patients and treating burn surgeons. HS are managed conservatively using compression therapy, but in our study, we attempt fat grafting with compression therapy to identify which treatment modality leads to better outcomes in patients.

Materials and Methods:
A total of 84 patients (42 in each arm) in this prospective single-blind randomized controlled study had undergone fat transfer with compression therapy and compression therapy alone at a tertiary care burn center for treatment of HS from July 2015 to June 2017.

Results:
Out of the total of 84 patients, 54 were male and 30 were female with the mean age being 26.19 and 37.93 years in the case (test) and control group, respectively. Among them, 54 were flame burns and 20 were electrical burns. Mean total body surface area of 23.67% and 44.36% in the case and control, respectively, represents the extent of burns in majority of patients. Assessment of scars was done using the Patient and Observer Scar Assessment Scale which was found statistically significant (<0.005) in both patient and observer assessment in case group, i.e., fat grafting with compression therapy at all times during follow-up. Early complications in form of erythema and swelling in 20 cases, swelling in 13, erythema in 4, and none in 5.

Conclusion:
Our study suggested the superiority of fat grafting with compression therapy in the improvement of HS. Patients tolerated outpatient procedures well with minimal morbidity and self-limiting complications.
Dorsal metacarpal artery perforator-based flaps for the reconstruction of postburn dorsal finger defects
Authors: Babu Vaddi Suman , Sharma Mukesh Kumar , Daram Ashok Reddy , Jha Manoj Kumar , Vulchi Sreeramaraju 
Published: June 2023

Background:
Burn injuries involving the dorsum of the hand are very common. Most burn injuries heal with dressings or skin grafting. Deep burns can lead to soft tissue defects and require durable cover to protect the underlying extensor tendons and the bone. Dorsal metacarpal artery-based flaps are reliable locoregional flaps that provide good soft tissue cover.

Materials and Methods:
This study included nine patients with postburn dorsal finger defects who underwent debridement and coverage using dorsal metacarpal artery perforator (DMAP)-based flaps from January 2019 to January 2022. Parameters in terms of flap dimensions, reliability, complications, and donor-site morbidity were assessed.

Results:
The flap size ranged from 5 cm × 2.5 cm to 7 cm × 2.5 cm. Two flaps had marginal necrosis, and one had venous congestion, which settled over time and healed with dressings. All the flaps settled well with a satisfactory outcome. The patients were followed up for 6–24 months.

Conclusion:
DMAP-based flaps are reliable in providing good soft tissue cover for reconstructing postburn dorsal finger defects with acceptable donor-site morbidity.
A retrospective study on treatment for postburn contracture of axilla with propeller flap cover at a tertiary care center
Authors: Kalita Kabita , Gurindagunta Swamy Vivek , Nithin M. 
Published: June 2023

Background:
The gold standard for burn scar reconstruction is to utilize adjacent skin flaps for the ease of operation and to match the skin characteristics. The objective of this study is to share our experiences using propeller flap cover for “postburn contracture of axilla (PBCA)” release reconstruction.

Materials and Methods:
This 5-year retrospective observational study was undertaken in the Plastic Surgery Department of GMCH, Guwahati, from 2016 to 2020 with the data available after obtaining the Ethics Committee approval. The patient records and photographs were gathered from the Medical Records and the Plastic Surgery Department of GMCH, Guwahati, respectively. Patients treated with a propeller flap cover were scrutinized.

Results:
The patients operated for PBCA were 36. There were 12 males and 14 females with a mean age of 21 years. Twelve patients with spared axillary dome skin underwent a central axis subcutaneous pedicle propeller flap. The flaps had dimensions of 8–12 cm in length and 6–9 cm in width. The pedicle was approximately 2–2.5 cm in diameter. The few complications seen included wound dehiscence and delayed wound healing, edge hypertrophy, band contractures, marginal necrosis, and pin cushioning. During follow-up, no recontractures were seen.

Conclusions:
We conclude that central axis subcutaneous pedicle propeller flap is a simple and effective treatment for mild-to-moderate PBCA with spared axillary dome skin. These flaps provide durable soft tissue cover with enhanced flap survival, functional mobility, and esthetics.
Prevalence of Online Gaming Addiction Amongst College Students, during Online Pedagogy, COVID-19 Pandemic Lockdown, Tamil Nadu, India
Authors: Savarimuthu Rogina J. S. , Ajay V. , Sheena V S. , Nancy J. , Harish S. 
Published: June 2023

Background:
COVID-19 pandemic has resulted in a shift from the traditional classroom setup to online method of teaching and learning.

Objectives:
The aim of this study was to assess the prevalence of online gaming addiction among college students, during online pedagogy, COVID-19 pandemic lockdown, Tamil Nadu, India.

Methods:
A non-experimental descriptive research design was used. The study was conducted among individuals pursuing online collegiate pedagogy due to COVID-19 pandemic lockdown who had access to android mobile phones and who responded to the e-survey. Web-based link was created on Google forms and shared through WhatsApp application. A demographic profile sheet and Internet Gaming Disorder Scale were used to collect the data.

Results:
More than half of the respondents were non-disordered gamers (51.9%) and a minimum of them were disordered gamers (3.7%). Gender (P = 0.006), life time of first internet use (P = 0.023) and the purpose of Internet use (P = 0.021) were found to be significantly associated with online gaming addiction.

Conclusion:
The tools utilised to attain online pedagogy were often used to engage in online gaming. Synchronously individuals need to be educated of the risk of harmful use of the same technology in the event of losing control over it, the technology taking control over the individual, resulting in addiction.
The selection of tandem angle and imaging during intracavitary brachytherapy of carcinoma cervix – An experience from a regional cancer center
Authors: Suryadevara Aparna , Gundu Dinesh K. , Kuppa Prakash , Chinta Sanjeeva Kumari 
Published: June 2023

ABSTRACT

Introduction:
Carcinoma cervix (CACX) is a common gynecological malignancy and locally advanced CACX is treated with radical chemoradiation, followed by brachytherapy boost. The appropriate selection of tandem angle is needed for optimal dose distribution and to avoid perforations. The aim of our study was to assess the appropriate tandem angle selection based on uterine angle measured on external beam radiotherapy (EBRT) planning imaging and to assess the need for repeat imaging and image-guided placement of tandem during intracavitary brachytherapy based on risk factors.

Methods:
This is a single-institute, two-arm retrospective, observational study to improve quality of brachytherapy in CACX patients (n = 206), with uterine perforation/suboptimal tandem placement (UPSTP) in arm A and optimally inserted in arm B. The uterine angle was measured from EBRT planning CT-scan and correlated with brachytherapy planning CT-scan and other risk factors in relation to UPSTP.

Results:
The uterine angle was 30° (±30°) and 17° (±21°) on EBRT and brachytherapy planning CT-scan, respectively, and significantly was different (P < 0.00001). There were 40 (19%) perforations and 52 (25%) suboptimal tandem placements (uterine subserosal/muscle insertion). The most common site of perforation was posterior then anterior and central. There was higher chance of UPSTP with hydrometra, huge uterus with tumor (HMHU) or retroverted uterus (RU), P = 0.006 and 0.14, respectively. The persistence of HMHU or RU during brachytherapy leads to higher UPSTP, P = 0.000023 and 0.18, respectively.

Conclusion:
Uterine angle measurement on EBRT planning CT-scan varies significantly when measured on brachytherapy planning CT-scan and cannot be used for selection of tandem. Reimaging before brachytherapy should be considered in advanced CACX with HMHU or RU at presentation and image-guided placement of tandem should be used if HMHU or RU persists during brachytherapy.
Effect of 13.56 MHz radiofrequency hyperthermia on mitotic cell cycle arrest in MCF7 breast cancer cell line and suggest a time interval for radiotherapy
Authors: Hatamian Milad , Hashemi Bijan , Mahdavi Seied Rabi , Soleimani Masoud , Khalafi Leila 
Published: June 2023

ABSTRACT

Introduction:
After surgery, radiotherapy is the most common technique to treat breast cancer. Over the past decades, the thermal effects of radiofrequency-wave hyperthermia combined with radiotherapy have been used to increase radiosensitivity in cancer treatment. The cells have various radiation and thermal sensitivities at different stages of the mitotic cycle. Furthermore, ionizing radiation and the thermal effect of hyperthermia affect the cells’ mitotic cycle and can partly induce cell cycle arrest. However, the time interval between hyperthermia and radiotherapy, as an essential factor influencing hyperthermia effect on cancer cells’ cycle arrest, has not been studied before. In this study, we investigated the effect of hyperthermia on the MCF7 cancer cell cycle arrest in mitotic cycles at various selected time intervals after hyperthermia to find and propose appropriate time intervals between hyperthermia and radiotherapy.

Method and Materials:
In this experimental study, we used the MCF7 breast cancer cell line to investigate the effect of 13.56 MHz hyperthermia (at a temperature of 43°C for a period of 20 min) on their cell cycle arrest. We performed the flowcytometry assay to assess the changes in the mitotic phases of the cell population at different time intervals (1, 6, 24, and 48 h) after hyperthermia.

Results:
Our flowcytometry results indicated the 24-h time interval has the most significant effect on the cell population at S and G2/M phases. Therefore, the 24-h time interval can be proposed as the most appropriate time after hyperthermia for carrying out combinational radiotherapy procedure.

Conclusion:
Among various investigated time intervals examined in our research, the 24-h time interval can be proposed as the most appropriate time between hyperthermia and radiotherapy for combinational therapy of breast cancer cells.