bluuebunny/crossref_metadata_2025_split huggingface dataset:
About simulation environment for modeling the Internet of Things components and applications using visual flow-based programming tools and cloud services
Authors: Andrushevich A. A. , Vojteshenko I. S. , Emelianova O. Ju. 
Published: June 2022

Objectives. The purpose of the analytical and research work was to develop and perform an initial assessment of the capabilities of simulation environment for modeling the Internet of Things (IoT) components and applications. The relevance of the problem is associated with the need to simplify research and testing of such systems as the field is growing. In the implementation of the simulation environment, the following goals were pursued: building a mathematical model; implementation of software, capable of running experiments on that model; providing the user with the ability to analyze results and adjust the model.Methods. Methods of simulation modeling were used.Results. Analysis of the relevance and impact of the research results has led to an appropriate example for demonstrating methods and means of solving the problem of IoT subsystems, components, and applications simulation in the proposed environment. This example has been implemented in the part of the Smart Home application model responsible for the energy efficiency optimization in residential buildings enclosed in a simulation environment based on an integrated software package consisting of the Node-RED visual tool for flow-based programming and the Yandex Cloud / Yandex IoT Core cloud service.Conclusion. A simulation model for managing energy consumption of a "smart home" was developed and implemented using the previously specified software package, including modeling time, environmental conditions, heat loss, operating modes of heating equipment and the behavior of house residents. Based on the implemented model, an initial series of simulation experiments were also carried out, on the one hand, aimed at checking some characteristics of the functionality of the developed simulation environment and the selected example for simulation of residential premises energy management. As a result of the initial experiments, the basic functionality of the integrated software package was proven and demonstrated based on the use of Node-RED and the Yandex Cloud / Yandex IoT Core cloud service for solving problems of simulation modeling of components, subsystems and applications of the Internet of things.
A retrial queueing system with processor sharing and impatient customers
Authors: Klimenok V. I. 
Published: June 2022

Objectives. The problem of constructing and investigating a mathematical model of a stochastic system with processor sharing, repeated calls, and customer impatience is considered. This system is formalized in the form of a queueing system. The operation of the queue is described in terms of multi-dimensional Markov chain. A condition for the existence of a stationary distribution is found, and algorithms for calculating the stationary distribution and stationary performance characteristics of the system are proposed.Methods. Methods of probability theory, queueing theory and matrix theory are used.Results. The steady state operation of a queueing system with repeated calls, processor sharing and two types of customers arriving in a marked Markovian arrival process is studied. The channel bandwidth is divided between two types of customers in a certain proportion, and the number of customers of each type simultaneously located on the server is limited. Customers of one of the types that have made all the channels assigned to them busy leave the system unserved with some probability and, with an additional probability, go to the orbit of infinite size, from where they make attempts to get service at random time intervals. Customers of the second type, which caused all the channels assigned to them to be busy, are lost. Customers in orbit show impatience: each of them can leave orbit forever if the time of its stay in orbit exceeds some random time distributed according to an exponential law. Service times of customers of different types are distributed according to the phase law with different parameters. The operation of the system is described in terms of a multi-dimensional Markov chain. It is proved that for any values of the system parameters this chain has a stationary distribution. Algorithms for calculating the stationary distribution and a number of performance measures of the system are proposed. The results of the study can be used to simulate the operation of a fixed capacity cell in a wireless cellular communication network and other real systems operating in the processor sharing mode.
Education for Sustainable Development Pedagogy in Pre-Primary Social Studies Curriculum in Kenya: Review of Literature
Authors: Lilian Ganira Khavugwi 
Published: June 2022

Education for sustainable development (ESD) emphasizes integration of values inherent in all curricular to encourage changes in behavior that allows a just society for all. The ESD pedagogy initiated by UNESCO highlights a shift towards active participation and experiential learning methods which engage learners in critical thinking and ability to act responsively for informed citizenship. Integrating sustainable development pedagogies, which include problem-based, inquiry-based and reflective learning in social studies curriculum, encourages creativity, critical thinking and respect for cultural diversity and creation of a sustainable society. Anchored on constructivism theory, the study used data from both primary and secondary sources on influence of ESD through social studies curriculum. Secondary data was sourced mainly from the internet, focusing on the work of UNESCO on education for sustainable development. Literature reviewed established that social studies curriculum, which is entrenched in values of humanity provides opportunities for lifelong learning and sustainable development. The ESD pedagogies facilitate learning of knowledge, promotes skills, perspectives and values that sustainable societies require for spurring the 21st Century and beyond. The systematic review recommends that teaching and learning of social studies should incorporate appropriate pedagogies for sustainable development for learners to progress to adult life as responsible and functional citizens for collective harmony.
The Jet and Resolved Features of the Central Supermassive Black Hole of M87 Observed with the Event Horizon Telescope (EHT)
Authors: Miyoshi Makoto , Kato Yoshiaki , Makino Junichiro 
Published: June 2022

Abstract
We report the result of our independent image reconstruction of the M87 from the public data of the Event Horizon Telescope Collaborators (EHTC). Our result is different from the image published by the EHTC. Our analysis shows that (a) the structure at 230 GHz is consistent with those of lower-frequency very long baseline interferometry observations, (b) the jet structure is evident at 230 GHz extending from the core to a few milliarcsecond, although the intensity rapidly decreases along the axis, and (c) the “unresolved core” is resolved into three bright features presumably showing an initial jet with a wide opening angle of ∼70°. The ring-like structures of the EHTC can be created not only from the public data but also from the simulated data of a point image. Also, the rings are very sensitive to the field-of-view (FOV) size. The u−v coverage of the Event Horizon Telescope (EHT) lacks ∼ 40 μas fringe spacings. Combining with a very narrow FOV, it created the ∼40 μas ring structure. We conclude that the absence of the jet and the presence of the ring in the EHTC result are both artifacts owing to the narrow FOV setting and the u−v data sampling bias effect of the EHT array. Because the EHTC's simulations only take into account the reproduction of the input image models, and not those of the input noise models, their optimal parameters can enhance the effects of sampling bias and produce artifacts such as the ∼40 μas ring structure, rather than reproducing the correct image.
MUSUBI (MegaCam Ultra-deep Survey: u*-band Imaging) Data for the COSMOS and SXDS Fields
Authors: Wang Wei-Hao , Foucaud Sebastien , Hsieh Bau-Ching , Jian Hung-Yu , Lin Lihwai , Lin Yen-Ting , Coupon Jean , Hashimoto Yasuhiro , Ouchi Masami , Shimasaku Kazuhiro , Ohyama Youichi , Umetsu Keiichi , Wang Shiang-Yu , Chang Tzu-Ching 
Published: June 2022

Abstract
The Subaru Hyper Suprime-Cam (HSC) Strategic Survey is the latest-generation multiband optical imaging survey for galaxy evolution and structure formation. The “Ultra-deep” component of the HSC survey provides grizy broadband images over ∼3.4 deg2 to detection limits of ∼26–28 AB, along with narrowband images, in the COSMOS and SXDS fields. These images provide an unprecedented combination of depths and area coverage, for studies of galaxies up to z ∼ 7. However, the lack of coverage at <4000 Å implies an incomplete sampling of the rest-frame UV at z ≲ 3, which is critically needed for understanding the buildup of stellar mass in later cosmic time. We conducted a multiyear CFHT u*-band imaging campaign in the two HSC Ultra-deep fields with CFHT MegaCam. By including shallower archival data, we reached 5σ depths of u* = 28.1 and 28.4 (AB) at the centers of the COSMOS and SXDS fields, respectively, and u* = 27.7 and 27.8 in the central 1 deg2 fields. The image quality is ≳ 0.″90, fairly good for the u* band. Both the photometric and astrometric quality of our data are excellent. We show that the combination of our u*-band and HSC data can lead to high-quality photometric redshifts at z = 0–3, and robust measurements of rest-frame UV on galaxies at 0.4 < z < 0.6 for distinguishing green-valley galaxies from star-forming and quiescent galaxies. We publicly release our reduced u*-band images and reference catalogs, which can be used readily for scientific studies.
Hubble Space Telescope Observations of Active Asteroid P/2020 O1 (Lemmon-PANSTARRS)
Authors: Kim Yoonyoung , Jewitt David , Agarwal Jessica , Mutchler Max , Li Jing , Weaver Harold 
Published: June 2022

Abstract
We present Hubble Space Telescope observations of active asteroid P/2020 O1 taken to examine its development for a year after perihelion. We find that the mass loss peaks at ≲1 kg s−1 in 2020 August and then declines to nearly zero over four months. Long-duration mass loss (∼180 days) is consistent with a sublimation origin, indicating that this object is likely an ice-bearing main-belt comet. Equilibrium sublimation of water ice from an area as small as 1580 m2 can supply the observed mass loss. Time-series photometry shows tentative evidence for extremely rapid rotation (double-peaked period <2 hr) of the small nucleus (effective radius ∼420 m). Ejection velocities of 0.1 mm particles are comparable to the 0.3 m s−1 gravitational escape speed from the nucleus, while larger particles are ejected at speeds less than the escape velocity. These properties are consistent with the sublimation of near-surface ice aided by centripetal acceleration. If water-ice sublimation is confirmed, P/2020 O1 would be an icy asteroid with the smallest semimajor axis (highest temperature), setting new bounds on the distribution of ice in the asteroid belt.
Green nail syndrome on the nail plate and bed related with Enterococcus and Fusarium coinfection
Authors: Ouzounova-Raykova Vessela V. 
Published: June 2022

AbstractThe green nail syndrome is characterized by discolouration of the nail plate frequently accompanied by chronic paronychia and onycholysis. The cause could be either bacterial or fungal infection.A 24-year-old woman presented to the clinic with a history of discolouration of the nail plate and bed accompanied by onycholysis. Scrapings from the nail were taken twice, microscopically examined, and cultured on media for isolation and identification of bacteria and fungi. The first sample gave positive results forEnterococcusspp. After treatment and a lack of complete recovery of the nail, second sample was taken and subjected to the same tests. This timeFusariuminfection was detected. Additional treatment was performed and the nail’s plate and bed were successfully treated.
Le problème agricole français
Authors: Hervieu Bertrand , Purseigle François 
Published: June 2022

Les questions de compétitivité de l’agriculture française et de notre souveraineté alimentaire ressurgissent dans un nouveau contexte de changement climatique que l’on se propose d’éclairer ici, en orientant le projecteur sur quatre des dimensions constitutives du dossier agricole français : la démographie agricole, la transformation des structures des exploitations, le revenu des agriculteurs et enfin les déséquilibres de la production.
Le site troglodytique de ʿIraq al-Amir (Amman, Jordanie)
Authors: Courbon Paul 
Published: June 2022

Dans le site de ʿIraq al-Amir, près d’Amman, une falaise abrite seize grottes qui ont fait l’objet d’une occupation et d’un aménagement humain. Après une présentation du contexte géologique de ces grottes, l’auteur s’attache à leur description et à leur aménagement. Si trois d’entre elles semblent avoir été entièrement taillées par l’homme, les autres sont naturelles, certaines comportant des aménagements spécifiques (par ex. des citernes). L’occupation de cet ensemble troglodytique jusqu’à une époque très récente rend la datation de ces aménagements difficile ; les sources archéologiques, les sources écrites et la découverte en 1993 d’un trésor monétaire lagide enfoui en 242 av. n.è. au pied des falaises assurent l’ancienneté de leur occupation.
Outcomes of nephrectomy for renal cell carcinoma: An ecologic retrospective study in a middle-income country
Authors: Partezani Alexandre Dib , Duarte-Santos Hugo Octaviano , Amaral Breno Santos , Gomes Barbosa Alan Roger , Apezzato Marcelo , Brunhara João , Bianco Bianca , Lemos Gustavo Caserta , Carneiro Arie 
Published: June 2022

Objective: The aim of this study was to describe and compare the outcomes and indirect costs of oncological radical (RN) and partial nephrectomies (PN) in hospitals from the São Paulo public health system, Brazil. Materials and methods: An ecologic retrospective study was performed from 2008 to 2019, using the TabNet Platform of the Brazilian Unified Health System Department of Informatics. Hospitals were classified according to volume of surgeries (low and high-volume, and also into four quartiles according to volume of surgeries), and with or without medical residency program in urology. The results were compared between groups. Results: In the period analyzed were performed 2.606 RN in 16 hospitals. Data available for PN ranged only from 2013-2019 and included 1.223 surgeries comprising 15 hospitals. Overall mortality rates were 0.41% for PN and 2.87% for RN. The length of hospital stay was significantly higher in low-volume hospitals for both RN and PN (8.97 vs. 5.62 days, p = 0.001, and 7.75 vs. 4.37 days, p = 0.001, respectively), and also for the RN in hospitals without residency program in Urology (9.37 vs. 6.54 days, p = 0.03). When the volume of surgeries was divided into four quartiles, the length of hospital stay and ICU hospitalization days were significantly higher in the first quartile hospitals for RN (p = 0.016) and PN (p = 0.009), respectively. The mortality rates and indirect costs were not different considering PN and RN in the different types of hospitals. Conclusions: The length of hospital stay was significantly lower for both PN and RN in high-volume hospitals, and also for RN in hospitals with residency program in Urology.
Macular oedema after uncomplicated phacoemulsification
Authors: Jaafar Aymen D. , Abdulkareem Suzan A. , Jaafar Mustafa D.J. 
Published: June 2022

Background: Recent development of cataract surgery has led to the improvement of visual outcomes. However, pseudophakic cystoid macular oedema (CME), which is also known as Irvine–Gass syndrome, remains a usual cause of unexpected visual disturbance after both complicated and uncomplicated cataract surgeries. Optical coherence tomography is an important method in detecting changes prior to clinical presentation.Aim: To assess macular thickness changes after uncomplicated phacoemulsification using spectral domain optical coherence tomography (SD-OCT).Setting: The study assessed healthy patients who had uneventful phacoemulsification and changes in macular thickness in Ibn Al Haitham Teaching Eye Hospital (tertiary eye center), Baghdad, Iraq.Methods: Macular thickness of 86 eyes with uncomplicated phacoemulsification were measured by using four OCT examinations: one preoperatively, which was used as a control, and three in the first week and first and second months. Incidence of macular thickness changes was evaluated in the central and para and perifoveal areas to detect which areas of the macular map will be affected more. Significance was tested by using paired t-test and p 0.05 was considered significant.Results: Significant increase in macular thickness postoperatively during the 2-month period reaching the maximum level in the second month; early significant changes were noticed in paracentral area in the first week whilst significant increase in the central and pericentral area was recorded in the first month. Cystoid macular oedema (CME) was detected in six eyes (7%) in the second month.Conclusion: Significant variation in macular thickness can occur after uneventful phacoemulsification surgery in healthy patients. Cystoid macular oedema was detected in 7% of our patients using SD-OCT. It is rare after uncomplicated phacoemulsification in healthy individuals but should be kept in mind in the follow-up period. A detailed fundus examination with OCT imaging is thus recommended in the first or second month postoperatively for the early detection and treatment of CME.
Associated clinical factors of diabetic complications in Chinese patients with Type 2 diabetes
Authors: Wang Xiaojing , Zhao Wenying , Ji Meihua , Zhao Dong 
Published: June 2022

Background:
The prevalence of the metabolic syndrome (MetS) is high among Chinese patients with type 2 diabetes. There is limited evidence in understanding the relationships between individual-level clinical indicators of MetS and diabetes complications among Chinese patients with Type 2 diabetes.

Aims and Objectives:
This study described the characteristics of patients with Type 2 diabetes in terms of the prevalence of MetS and clinical factors related to the common diabetes complications.

Materials and Methods:
Patients (n = 402) with Type 2 diabetes admitted to a tertiary hospital in Beijing were included in the study. Using patients' retrospective data, logistic regression was applied to determine the associated clinical factors of common diabetic complications.

Results:
In this sample, the prevalence of MetS was 84.3%, with the prevalence of diabetic peripheral neuropathy, microvascular, and macrovascular complications being 59.7%, 63.4%, and 61.7%, respectively. Our results showed that the diastolic blood pressure was significantly associated with diabetic retinopathy, while the levels of C peptide and fasting glucose were significantly related to diabetic nephropathy. Meanwhile, the regression also showed that the waist to hip ratio (WHR) is a significant indicator for the development of macrovascular complications. A 0.1 increase in the WHR will increase the chances of having carotid artery disease by 1.29 folds.

Conclusion:
The current study demonstrates that the prevalence of MetS and the common diabetic complications are relevantly high in this sample. Our findings suggest that reducing the WHR, controlling blood pressure, and improving glycemic control following clinical guidelines are essential to prevent or slow the progression of diabetes complications among patients with Type 2 diabetes.
Drug utilization evaluation of pantoprazole in Kempegowda Institute of Medical Sciences (KIMS) hospital and research centre, India
Authors: Ghorbani Shamimeh Fallah , Nagaraju Kiran 
Published: June 2022

ABSTRACT

Objective:
To evaluate the rational use of Pantoprazole by analyzing the appropriateness of prescription.

Methodology:
This cross-sectional study was performed within four months in 150 patients hospitalized in Kempegowda Institute of Medical Sciences Hospital and Research Centre, India. Demographic data, type and doses of Pantoprazole, including risk factors, and other relevant clinical data were recorded.

Result:
Out of 150 prescriptions prescribed with Pantoprazole 102 prescriptions were prescribed along with Non-steroidal anti-inflammatory drugs (NSAIDs) and 90 prescriptions were prescribed along with antibiotics. The majority (78.7%) of the patients were endorsed with Pantoprazole. Following national institute for health and care excellence (NICE) rules, fitting utilization of protein pump inhibitors (PPIs) was found in 64% whereas it was unseemly to use in 36% of cases. A large portion of the potential medication sedate associations was moderate. Characterized everyday dose/100-bed day of PPIs was seen as 0.929. Rabeprazole (20 mg, tablet) demonstrated the most extreme rate value variety of 672.32% while Pantoprazole (40 mg, infusion) indicated a base rate value variety of 18.72%.

Conclusion:
Prevalence of dosage shows that Pantoprazole was prescribed more for males in the age group of 60-70 years with the significant risk factor of smoker (18%) and alcoholic (9.3%). Among 150 prescriptions, 22.67% of prescriptions were irrationally prescribed. PPIs should be used only when there is documented evidence and when their use is clinically justified so that the appropriate prescription of PPIs will decrease the social insurance weight of the patient.
Clinical profile and spectrum of bacteriuria in patients with diabetes: An analytical study
Authors: Biswas Diwashish , Pawar Neeraj , Patro Sunil K. , Krishna N Subba , Parida Darshan , Bhagtana Parneet K. 
Published: June 2022

ABSTRACT

Introduction:
Diabetes is one of the modern-day epidemics with a spectrum of complications. Urinary tract infections (UTI) are common among patients with diabetes, and often it goes unnoticed in the initial period, which can later lead to complications. This study was planned to find out the magnitude of the problem of bacteriuria among diabetics and to look for its associated factors in diabetics.

Methodology:
A hospital-based study recruiting 100 eligible diabetics consecutively over a period of one year. Socio-demographic data were collected using a semi-structured questionnaire, and clinical examinations with relevant investigations were done. Informed written consent was taken.

Results:
Bacteriuria was found in 43 out of 100 participants. Prevalence was significantly more among females (54%) as compared to males (32%). Factors like poor glycaemic control, complications like neuropathy, diabetic foot were significantly associated with bacteriuria. E Coli was the most common bacterial isolate.

Conclusion:
Urinary tract infection is common in diabetic patients, especially females, and other clinical factors like uncontrolled sugar levels also play a role.