bluuebunny/crossref_metadata_2025 huggingface dataset:
SOSYAL BİLGİLER DERSİNDE GEÇEN KAVRAMLARA YÖNELİK MÜLTECİ ÖĞRENCİLERİN ALGILARI
Authors: ÜSTÜNDAĞ ŞENER Nurcan , BAŞKAN Zeynep
Published: December 2021

Sosyal Bilgiler dersinde yer alan kavramlara ilişkin mülteci öğrencilerin algılarının öğrenci ve öğretmen görüşlerine göre incelenmesinin amaçlandığı bu araştırmada nitel araştırma yöntemi kullanılmıştır. İlkokul 4. Sınıf düzeyinde öğrenim görmekte olan 13 mülteci öğrenci ve 8 sınıf öğretmeni araştırmanın çalışma grubunu oluşturmaktadır. Araştırmanın verileri yarı yapılandırmış görüşme formuyla elde edilmiştir. Elde edilen veriler içerik analizine tabi tutulmuştur. Çalışma grubunu oluşturan öğrenci ve öğretmen görüşlerinden elde edilen bulgulara göre; sosyal bilgiler dersine yönelik algıları olumlu olan mülteci öğrenciler, dersi faydalı, yeni bilgiler öğrendikleri, eğlenceli ve hayatı kolaylaştıran bir ders olarak ifade etmişlerdir. Sosyal bilgiler dersinde geçen kavramlara yönelik algıları zor olan öğrencilerin daha çok günlük hayatta karşılığı olmayan kavramları algılamakta zorlandıkları, aynı dili kullanmıyor olmanın getirdiği iletişimsel problemleri yaşadıkları tespit edilmiştir.
Medidas autosatisfactivas dictadas en pandemia en la provincia de Córdoba
Authors: Marconetto María Teresa
Published: December 2021

Las medidas autosatisfactivas han sido la herramienta más utilizada durante la pandemia, en la Provincia de Córdoba, para reclamar los derechos de trabajadores/as. Se ha generado así una rica doctrina judicial en la materia, definiendo su concepto, requisitos, fundamento y trámite. Los principales derechos reclamados han sido, el derecho al empleo y al cobro del salario. Existen casos claros en donde se aplicaron los DNU de emergencia ordenando la ineficacia del despido. Otros casos no tan claros, han dividido a la jurisprudencia como los despidos dentro del periodo de prueba y en el régimen de la construcción. Estas medidas se han consolidado como la acción pretorianamás eficaz en tiempos de pandemia.

Sumario

I.- Introducción. II.- Las medidas autosatisfactivas: 1.-Definición. 2.- Diferencia con otras medidas. 3.- Requisitos. 4.- Fundamento normativo. 5.- Trámite. III.- Derecho tutelado invocado: 1.- Derecho al empleo: i) Análisis constitucional del DNU 329/20 y sus prórrogas. ii) Casos claros alcanzados por el DNU 329/20. iii) Casos no tan claros donde se discute el alcance del DNU 329/20. 2.- Derecho a la remuneración. IV.- Conclusión
El sistema sindical argentino. Un modelo para armar.
Authors: Giavedoni Franco
Published: December 2021

El autor comenta un fallo en el cual una entidad sindical con simple inscripción demanda por la vía de amparo en procura de obtener una resolución jurisdiccional que obligue a los empleadores de sus afiliados a actuar como agentes de retención de la cuota sindical, equiparándolo en este sentido, con aquellas entidades sindicales con personería gremial.

Sumario

I.- El fallo comentado: “Asociación del Personal Superior de Autopistas e Infraestructura APSAI c/ Autopistas del Sol S.A. s/ Amparo”. La plataforma fáctica. II.- La resolución de la CSJN. III- El comentario del autor. III.1. La libertad sindical y sus restricciones. III.2 La normativa nacional y supranacional vinculada al caso. III.3 La inconstitucionalidad del art. 38 LAS. Sus fundamentos. IV.- Reflexión final
Hoe levensloopinterviews inzicht bieden in Nederlands rechts-extremisme
Authors: Peels Rik
Published: December 2021

Boekbespreking van proefschrift en van daarop gebaseerd publieksboek van Nikki Sterkenburg over radicaal- en extreemrechts in Nederland.
Comparison of Composite and Star-forming Early-type Galaxies
Authors: Wu Yu-Zhong
Published: December 2021

I assemble 4684 star-forming early-type galaxies (ETGs) and 2011 composite ETGs (located in the composite region on the BPT diagram) from the catalog of the Sloan Digital Sky Survey Data Release 7 MPA-JHU emission-line measurements. I compare the properties of both ETG samples and investigate their compositions, stellar masses, specific star formation rates (sSFRs), and excitation mechanisms. Compared with star-forming ETGs, composite ETGs have higher stellar mass and lower sSFR. In the stellar mass and u − r color diagram, more than 60% of star-forming ETGs and composite ETGs are located in the green valley, showing that the two ETG samples may have experienced star formation and that ∼17% of star-forming ETGs lie in the blue cloud, while ∼30% of composite ETGs lie in the red sequence. In the [N II]/Hα versus EWHα
(the Hα equivalent width) diagram, all star-forming ETGs and most of the composite ETGs are located in the star-forming galaxy region, and composite ETGs have lower EWHα
than their counterparts. We show the relations between 12+log(O/H) and log(N/O) for both ETG samples, and suggest that nitrogen production of some star-forming ETGs can be explained by the evolution scheme of Coziol et al., while the prodution of composite ETGs may be a consequence of the inflowing of metal-poor gas and these more evolved massive galaxies.
In the Trenches of the Solar-stellar Connection. V. High-resolution Ultraviolet and X-Ray Observations of Sun-like Stars: The Curious Case of Procyon
Authors: Ayres Thomas R.
Published: December 2021

A joint X-ray (0.2–2 keV) and ultraviolet (1150–3000 Å) time-domain study has been carried out on three nearby bright late-type stars, bracketing the Sun in properties. Alpha Cen A (HD 128620: G2 V) is a near twin to the Sun, although slightly more massive and luminous, slightly metal-rich, but older. Alpha Cen B (HD 128621: K1 V) is cooler than the Sun, somewhat less massive and lower in luminosity. Procyon (HD 61421: F5 IV–V) is hotter, more massive and more luminous than the Sun, half the age, but more evolved. Stellar observations were from Chandra X-ray Observatory and Hubble Space Telescope (HST). The Sun provided a benchmark through high-energy spectral scans from solar irradiance satellites and novel high-dispersion full-disk profiles of key UV species—Mg ii, C ii, and Si iv—from the Interface Region Imaging Spectrograph. Procyon’s flux history was strikingly constant at all wavelengths, in contrast to the other three cycling-dynamo stars. Procyon also displays a strong subcoronal (T ∼ 1 × 105 K) emission excess, relative to chromospheric Mg ii (T ≲ 104 K), although its X-rays (T ∼ 2 MK) appear to be more normal. At the same time, the odd sub-Gaussian shapes, and redshifts, of the subgiant’s “hot lines” (such as Si iv and C iv) are remarkably similar to the solar counterparts (and α Cen AB). This suggests a Sun-like origin, namely a supergranulation network supplied by magnetic flux from a noncycling “local dynamo.”
Exosphere Modeling of Proxima b: A Case Study of Photochemical Escape with a Venus-like Atmosphere
Authors: Lee Yuni , Dong Chuanfei , Tenishev Valeriy
Published: December 2021

Exoplanets orbiting M dwarfs within habitable zones are exposed to stellar environments more extreme than that terrestrial planets experience in our solar system, which can significantly impact the atmospheres of the exoplanets and affect their habitability and sustainability. This study provides the first prediction of hot oxygen corona structure and the associated photochemical loss from a 1 bar CO2-dominated atmosphere of a Venus-like rocky exoplanet, where dissociative recombination of O2
+ ions is assumed to be the major source reaction for the escape of neutral O atoms and formation of the hot O corona (or exospheres) as on Mars and Venus. We employ a 3D Monte Carlo code to simulate the exosphere of Proxima Centauri b (PCb) based on the ionosphere simulated by a 3D magnetohydrodynamic model. Our simulation results show that variability of the stellar wind dynamic pressure over one orbital period of PCb does not affect the overall spatial structure of the hot O corona but contributes to the change in the global hot O escape rate that varies by an order of magnitude. The escape increases dramatically when the planet possesses its intrinsic magnetic fields as the ionosphere becomes more extended with the presence of a global magnetic field. The extended hot O corona may lead to a more extended H exosphere through collisions between thermal H and hot O, which exemplifies the importance of considering nonthermal populations in exospheres to interpret future observations.
V899 Mon: A Peculiar Eruptive Young Star Close to the End of Its Outburst
Authors: Park Sunkyung , Kóspál Ágnes , Cruz-Sáenz de Miera Fernando , Siwak Michał , Dróżdż Marek , Ignácz Bernadett , Jaffe Daniel T. , Könyves-Tóth Réka , Kriskovics Levente , Lee Jae-Joon , Lee Jeong-Eun , Mace Gregory N. , Ogłoza Waldemar , Pál András , Potter Stephen B. , Szabó Zsófia Marianna , Sefako Ramotholo , Worters Hannah L.
Published: December 2021

The eruptive young star V899 Mon shows characteristics of both FUors and EXors. It reached a peak brightness in 2010, then briefly faded in 2011, followed by a second outburst. We conducted multifilter optical photometric monitoring, as well as optical and near-infrared spectroscopic observations, of V899 Mon. The light curves and color–magnitude diagrams show that V899 Mon has been gradually fading after its second outburst peak in 2018, but smaller accretion bursts are still happening. Our spectroscopic observations taken with Gemini/IGRINS and VLT/MUSE show a number of emission lines, unlike during the outbursting stage. We used the emission line fluxes to estimate the accretion rate and found that it has significantly decreased compared to the outbursting stage. The mass-loss rate is also weakening. Our 2D spectroastrometric analysis of emission lines recovered jet and disk emission of V899 Mon. We found that the emission from permitted metallic lines and the CO bandheads can be modeled well with a disk in Keplerian rotation, which also gives a tight constraint for the dynamical stellar mass of 2 M
⊙. After a discussion of the physical changes that led to the changes in the observed properties of V899 Mon, we suggest that this object is finishing its second outburst.
Stellar Rotation of T Tauri Stars in the Orion Star-forming Complex
Authors: Serna Javier , Hernandez Jesus , Kounkel Marina , Manzo-Martínez Ezequiel , Roman-Lopes Alexandre , Román-Zúñiga Carlos G. , Batista Maria Gracia , Pinzón Giovanni , Calvet Nuria , Briceño Cesar , Tapia Mauricio , Suárez Genaro , Ramírez Karla Peña , G. Stassun Keivan , Covey Kevin , Vargas-González J. , Fernández-Trincado José G.
Published: December 2021

We present a large-scale study of stellar rotation for T Tauri stars in the Orion star-forming complex. We use the projected rotational velocity (

v
sin
(
i
)

) estimations reported by the APOGEE-2 collaboration as well as individual masses and ages derived from the position of the stars in the HR diagram, considering Gaia-EDR3 parallaxes and photometry plus diverse evolutionary models. We find an empirical trend for

v
sin
(
i
)

decreasing with age for low-mass stars (0.4M
⊙ < M
* < 1.2M
⊙). Our results support the existence of a mechanism linking

v
sin
(
i
)

to the presence of accreting protoplanetary disks, responsible for regulating stellar rotation on timescales of about 6 Myr, which is the timescale in which most of the T Tauri stars lose their inner disk. Our results provide important constraints to models of rotation in the early phases of evolution of young stars and their disks.
Penser le soin, penser un cadre
Authors: Picard Jean
Published: December 2021

« Un homme sans pensée est comme un oiseau qui n’a qu’une aile, cloué au sol. » C’est avec insistance que les adolescents nous demandent de les aider à sortir de leur souffrance, qu’ils peuvent exprimer de façon bruyante ou silencieuse. Les adultes ne devront pas s’absenter de leur rôle de « passeur ». Une institution ne pourra tenir sa qualité de soignante que de la construction, du partage et de l’entretien constant et obstiné de son « identité » pour aider ces adolescents qu’elles accueillent à voler, un jour, de leurs propres ailes…
Le « complexe fraternel » dans le processus d’emprise groupale
Authors: Claveirol Annie
Published: December 2021

Le « complexe fraternel », d’abord décrit par Lacan puis relu et approfondi par René Kaës autour de la question de la conflictualité, peut éclairer les processus psychiques profonds à l’œuvre dans les mécanismes d’emprise groupale à l’adolescence. Ce mécanisme peut être intéressant pour comprendre l’emprise intrafamiliale dans les embrigadements par la radicalisation. À partir de la lecture d’un cas clinique, deux hypothèses vont être postulées, celle d’un fratricide déguisé sous le meurtre de masse et celle du meurtre de la Chose.
Bifurcation and control of a predator-prey system with unfixed functional responses
Authors: Fei Lizhi , Chen Xingwu
Published: December 2021

In this paper we investigate a discrete-time predator-prey system with not only some constant parameters but also unfixed functional responses including growth rate function of prey, conversion factor function and predation probability function. We prove that the maximal number of fixed points is \begin{document}$ 3 $\end{document} and give necessary and sufficient conditions of exactly \begin{document}$ j $\end{document}(\begin{document}$ j = 1,2,3 $\end{document}) fixed points, respectively. For transcritical bifurcation and Neimark-Sacker bifurcation, we provide bifurcation conditions depending on these unfixed functional responses. In order to regulate the stability of this biological system, a hybrid control strategy is used to control the Neimark-Sacker bifurcation. Finally, we apply our main results to some examples and carry out numerical simulations for each example to verify the correctness of our theoretical analysis.
Dynamics of stochastic retarded Benjamin-Bona-Mahony equations on unbounded channels
Authors: Zhang Qiangheng
Published: December 2021

This article is devoted to the asymptotic behaviour of solutions for stochastic Benjamin-Bona-Mahony (BBM) equations with distributed delay defined on unbounded channels. We first prove the existence, uniqueness and forward compactness of pullback random attractors (PRAs). We then establish the forward asymptotic autonomy of this PRA. Finally, we study the non-delay stability of this PRA. Due to the loss of usual compact Sobolev embeddings on unbounded domains, the forward uniform tail-estimates and forward flattening of solutions are used to prove the forward asymptotic compactness of solutions.
Brain tissue segmentation via non-local fuzzy c-means clustering combined with Markov random field
Authors: Song Jianhua ,   The Key Laboratory of Intelligent Optimization and Information Processing, Minnan Normal University, Zhangzhou, 363000, China, Yuan Lei ,   College of Physics and Information Engineering, Minnan Normal University, Zhangzhou, 363000, China
Published: December 2021

The segmentation and extraction of brain tissue in magnetic resonance imaging (MRI) is a meaningful task because it provides a diagnosis and treatment basis for observing brain tissue development, delineating lesions, and planning surgery. However, MRI images are often damaged by factors such as noise, low contrast and intensity brightness, which seriously affect the accuracy of segmentation. A non-local fuzzy c-means clustering framework incorporating the Markov random field for brain tissue segmentation is proposed in this paper. Firstly, according to the statistical characteristics that MRF can effectively describe the local spatial correlation of an image, a new distance metric with neighborhood constraints is constructed by combining probabilistic statistical information. Secondly, a non-local regularization term is integrated into the objective function to utilize the global structure feature of the image, so that both the local and global information of the image can be taken into account. In addition, a linear model of inhomogeneous intensity is also built to estimate the bias field in brain MRI, which has achieved the goal of overcoming the intensity inhomogeneity. The proposed model fully considers the randomness and fuzziness in the image segmentation problem, and obtains the prior knowledge of the image reasonably, which reduces the influence of low contrast in the MRI images. Then the experimental results demonstrate that the proposed method can eliminate the noise and intensity inhomogeneity of the MRI image and effectively improve the image segmentation accuracy.
Cognitive and linguistic dysfunction after thalamic stroke and recovery process: possible mechanism
Authors: Obayashi Shigeru ,   Department of Rehabilitation Medicine, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe, Saitama 350-8550, Japan,   Department of Rehabilitation Medicine, Chiba-Hokusoh hospital, Nippon Medical School, 1715 Kamagari, Inzai, Chiba 270-1694, Japan
Published: December 2021

Thalamic stroke may result in cognitive and linguistic problems, but the underlying mechanism remains unknown. Especially, it is still a matter of debate why thalamic aphasia occasionally occurs and then mostly recovers to some degree. We begin with a brief overview of the cognitive dysfunction and aphasia, and then review previous hypotheses of the underlying mechanism. We introduced a unique characteristic of relatively transient “word retrieval difficulty” of patients in acute phase of thalamic stroke. Word retrieval ability involves both executive function and speech production. Furthermore, SMA aphasia and thalamic aphasia may resemble in terms of the rapid recovery, thus suggesting a shared neural system. This ability is attributable to the supplementary motor area (SMA) and inferior frontal cortex (IFG) via the frontal aslant tract (FAT). To explore the possible mechanism, we applied unique hybrid neuroimaging techniques: single-photon emission computed tomography (SPECT) and functional near-infrared spectroscopy (f-NIRS). SPECT can visualize the brain distribution associated with word retrieval difficulty, cognitive disability or aphasia after thalamic stroke, and f-NIRS focuses on SMA and monitors long-term changes in hemodynamic SMA responses during phonemic verbal task. SPECT yielded common perfusion abnormalities not only in the fronto–parieto–cerebellar–thalamic loop, but also in bilateral brain regions such as SMA, IFG and language-relevant regions. f-NIRS demonstrated that thalamic stroke developed significant word retrieval decline, which was intimately linked to posterior SMA responses. Word retrieval difficulty was rapidly recovered with increased bilateral SMA responses at follow-up NIRS. Together, we propose that the cognitive domain affected by thalamic stroke may be related to the fronto–parieto–cerebellar–thalamic loop, while the linguistic region may be attributable to SMA, IFG and language-related brain areas. Especially, bilateral SMA may play a crucial role in the recovery of word retrieval, and right language-related region, including IFG, angular gyrus and supramarginal gyrus may determine recovery from thalamic aphasia.
Students Engagement and Development of Generic Skills in Gamified Hybrid Service-Learning Course
Authors: Yusof Azizah , Atan Noor Azean , Harun Jamalludin , Rosli Mohd Shafie , Abd Majid Umi Mastura
Published: December 2021

Hybrid Service-Learning, an emerging trend of combining co-curriculum course embedded with service-learning instructional strategies in online settings, has increasingly gained popularity, as many service-learning educators are moving into online platforms. The ongoing COVID-19 pandemic has accentuated its needs, thus forcing education systems worldwide to find alternatives to face-to-face instructions, one of them being Hybrid Service-Learning. This has prompted many researchers to attempt utilising gamification in online courses to increase students’ engagement. The purpose of this research was to report a gamified Hybrid Service-Learning (GAMYSEL) through students’ level of engagement proposed by Schlechty, used as a data classification to compare students’ scorings in their earning of points, badges, level and leaderboards. The results of the study indicated that, the students’ levels of engagement were relatively high through Advocacy Hybrid-Service Learning approach, where majority of them achieved the Strategic Compliance and Optimal Engagement categories. The students’ generic skills were further analysed with one-way repeated measures ANOVA and it was discovered that, GAMYSEL had positive impacts in developing these skills in five stages of service-learning. Both of these findings suggest that student’s engagement and generic skills had a significant effect on students learning after the use of GAMYSEL.
An Essay on the Political Economy Effects of the COVID-19 Pandemic as Twin Crises
Authors: Kalaycı Irfan
Published: December 2021

The subject and purpose of this study is to examine the new type of coronavirus disease (COVID-19), which has turned into a global epidemic, with an economic-political approach. There are twin crises in the form of a health crisis (high human deaths) and an economic crisis (recession). Trillion-dollar aid packages from governments and international financial organizations also show that this global public health crisis has created an economic crisis. In the context of these crises, G-20 countries that did not intervene in their transmission channels in a timely manner showed the worst situations. This epidemic, calculated with the SIR model, is global, but the measures are local. What makes a clean, masked, and socially distant life obligatory against the risk of contamination is that this epidemic locks or restricts the whole economy, especially trade, education, and tourism. Measures called “new normalization” have started to relax in order to prevent further increase in unemployment and poverty.
COVID-19 and the Livelihoods of the Migrant Workers
Authors: Jana Sebak Kumar , Naru Subrata , Paul Pranjit Kr
Published: December 2021

The spread of the corona-virus disease 2019 (COVID-19) and subsequent nationwide lockdown in India from March 22, 2020 to control its further outbreak brought turmoil in the lives of millions who are primarily involved in the informal sector. A primary survey was conducted in the District of South 24 Pgs. in the state of West Bengal, India to know the effects of COVID-19 on rural livelihood, particularly of the migrant workers. Types of disruptions of rural livelihood of the households have been explored in the study. Perceptions of the effects of shocks of COVID-19 on the rural households have been assessed in terms of the following variables: loss of assets, loss of income, food insecurity/shortage, death of livestock, decline in consumption, decline in health conditions, socialization, effects on education, problems in accessing health facilities. Types of government supports provided to the households have been found for the study area. The role of the government in overcoming the crisis of livelihood has also been assessed.
The Impact of COVID-19 on the Size Distribution of New Firms in Turkey
Authors: Aydogan Yigit
Published: December 2021

A surge in new firm registrations have been one of the most intriguing outcomes of the economic turbulence caused by the COVID-19 pandemic. Turkey followed a similar pattern to many other economies that observed an initial drop and a rapid V-shaped recovery of entry when the virus hit the country. However, the size distribution of new firms has been very different. While others experience a strong rise in smaller entrants, larger firms have dominated the pack in Turkey. As a widely-known long-term problem of the Turkish economy, which has been accused of causing the stagnation of growth, miniscule firms have been losing their weight rapidly among the entrants. It revives lost hopes for the future of the economy and also motivates questions regarding the other determinants of such transformation in new firm formation.
Model for Determination of Musculoskeletal Disorder Cost/Benefit
Authors: Martinez Juan Alberto Castillo , Andres Felipe Garcia S.
Published: December 2021

It is generally considered that the costs related to musculoskeletal disorders (MSDs) stem from absenteeism, medical expenses, reduced productivity, and quality of life. To estimate the costs associated with MSDs in organizations and thus determine the benefits for a company of implementing an effective and sustainable prevention program, it is necessary to consider the need to know the current and future prevalence of MSDs as well as to understand whether these data vary according to the economic sector, geographic location, and demographic aspects. It is also necessary to understand whether there are comorbidities associated with MSDs as well as the direct and indirect impacts in terms of the productive and work capacity of organizations and individuals. In the development of this study, the authors wanted to generate an analysis tool to estimate the incidence of MSDs and their economic costs, which also serves as a baseline to evaluate the possible benefits derived from prevention programs for this type of work-related disease.
Integrated Regression Approach for Prediction of Solar Irradiance Based on Multiple Weather Factors
Authors: Kamble Megha , Ghosh Sudeshna
Published: December 2021

Solar irradiance is the most vital aspect in estimating the solar energy collection at any location. Renewable energy setup at any location is dependent on it and other ambient weather parameters. However, it is hard to predict due to unstable nature and dependence on variations in weather conditions. The correlation of ambient weather factors on the performance of solar irradiance is analysed, by collecting the data using weather API, over the year for a particular location of central India. The training of this non-linear data is carried out with hybrid regression model integrating decision tree regression with Artificial Neural Network (ANN) module. Experimentation is performed using real data of different days from different seasons of the year, also by considering different irradiance conditions. The results demonstrated significant weather factors with moderate positive and negative correlation with solar irradiance, which can be used as a helpful tool to predict it before deployment of solar energy setup.
Epidemiological, clinical and laboratory differences between male urethral infections due to Haemophilus spp. and those due to Neisseria gonorrhoeae, Chlamydia trachomatis, Mycoplasma genitalium and Ureaplasma urealyticum: A descriptive study
Authors: Vives Alvaro , Cosentino Marco , Bassas Lluis , Alonso Carles , Millan Felix
Published: December 2021

Objective: To describe the epidemiological, clinical and laboratory characteristics of male patients diagnosed with Haemophilus spp. urethral infection and to compare them with the characteristics of male patients diagnosed with N. gonorrhoeae, C. trachomatis, M. genitalium and U. urealyticum urethral infection. Over the past 2 years, an increase in urethral infections due to Haemophilus spp. was observed. Materials and methods: All male patients who attended our Department of Sexually Transmitted Infections between January 2018 and February 2019 were retrospectively studied; they underwent conventional bacteriological and multiplex PCR studies in the urethra at the same time. Results: Of the 86 patients studied, a unique microorganism was detected in 76 cases, N. gonorrhoeae in 24, Haemophilus spp. in 21 (16 H. parainfluenzae and 5 H. influenzae), C. trachomatis in 19, M. genitalium in 8 and U. urealyticum in 4; 10 cases presented more than one microorganism. In case of multiple aetiological agents, sexual partnership was multiple. In the Haemophilus group, 81% reported only unprotected oral insertive sex; symptoms lasted for more than one week in 62% of the patients. Conclusions: Haemophilus is an aetiological agent of non-gonococcal urethritis whose incidence is clearly increasing; the main route of transmission is oral sex. The most common reason for consultation is dysuria and testicular pain, while urethral discharge was predominant for the other causes of urethral infection. Due to the high frequency of antibiotic resistance in the Haemophilus group, it is necessary to confirm eradication by performing a test of cure.
Sigmoid volvulus: Treatment options and volvulus recurrence
Authors: Atamanalp Sabri Selcuk , Peksoz Rifat
Published: December 2021

Sigmoid Volvulus (SV) is principally treated with non-operative decompression, whereas it may require surgical management in some situations. Depending upon the treatment method, SV recurs in about one fourth of the cases, which doubles the mortality and morbidity rates. In this paper, we discuss the management and related recurrence of SV in the light of the largest single-center SV series over the world.
Canada One Water: integrated groundwater-surface-water-climate modelling for climate change adaptation
Authors: Russell H A J , Frey S K
Published: December 2021

Canada 1 Water is a 3-year governmental multi-department-private-sector-academic collaboration to model the groundwater-surface-water of Canada coupled with historic climate and climate scenario input. To address this challenge continental Canada has been
allocated to one of 6 large watershed basins of approximately two million km2. The model domains are based on natural watershed boundaries and include approximately 1 million km2 of the United States. In year one (2020-2021) data assembly and validation of some 20 datasets (layers) is the focus of
work along with conceptual model development. To support analysis of the entire water balance the modelling framework consists of three distinct components and modelling software. Land Surface modelling with the Community Land Model will support information needed for both the regional climate
modelling using the Weather Research & Forecasting model (WRF), and input to HydroGeoSphere for groundwater-surface-water modelling. The inclusion of the transboundary watersheds will provide a first time assessment of water resources in this critical international domain. Modelling is also
being integrated with Remote Sensing datasets, notably the Gravity Recovery and Climate Experiment (GRACE). GRACE supports regional scale watershed analysis of total water flux. GRACE along with terrestrial time-series data will serve provide validation datasets for model results to ensure that the
final project outputs are representative and reliable. The project has an active engagement and collaborative effort underway to try and maximize the long-term benefit of the framework. Much of the supporting model datasets will be published under open access licence to support broad usage and
integration.
Spontaneous resolution of nontraumatic bilateral Barrow Type D indirect carotid-cavernous fistulas
Authors: Baig Ammad A. , Lazar Audrey L. , Waqas Muhammad , Dossani Rimal H. , Cappuzzo Justin M. , Levy Elad I. , Siddiqui Adnan H.
Published: December 2021

A Caucasian man in his 60s with a history of Cognard Type IIB dural arteriovenous fistula presented to the emergency room with right eye proptosis, chemosis, hyperemia, epiphora, diplopia, and blurred vision. Magnetic resonance imaging and magnetic resonance angiography revealed spontaneous, bilateral Barrow Type D carotid-cavernous fistulas (CCFs) that were later confirmed through cerebral angiography. The patient had no history of head or ocular trauma. Given the acute nature of presentation and worsening diplopia, the patient was scheduled for transvenous embolization. However, during the preprocedure angiogram, spontaneous resolution of the bilateral CCFs was observed. Complete resolution of all symptoms was noticed during follow-up. Given the rare nature of bilateral, indirect CCFs, our case stands out as the only reported instance whereby resolution of bilateral, indirect CCFs occurred spontaneously without any intervention.
Oro-Facial-Digital Syndrome
Authors: Verma Prashant Kumar , Bhat Nowneet Kumar
Published: December 2021

Oro-facial-digital syndrome (OFD) is a disorder with varied inheritance patterns. They deal mainly with abnormalities of the face, digits, i.e., fingers and toes, and oral cavity. Hypoplasia of nasal alar cartilage, broad nasal bridge, frontal bossing, and micrognathia are the common facial abnormalities observed in its multiple potential forms. Among the oral features, lobulated tongue, multiple frenulae, and cleft lip/palate are the common findings. The subject presented in our case manifested cleft of the hard palate at the time of presentation, along with other diverse features, which could not match any of the defined OFD types in literature. Furthermore, follow-up of the infant observed closure of the palate spontaneously, without any intervention. Hence, the purpose is to add to the knowledge the typical features of this unspecified type of OFD, along with this unique unprompted cleft palate closure, which aroused the need of close watch in such cases.
Cytogenetic Evaluation of Congenital Anomalies in Manipur
Authors: Sharma Garima , Devi Aribam Jaishree , Singh Thounaojam Naranbabu
Published: December 2021

Introduction:

Birth defect, congenital malformation, and congenital anomaly are synonymous terms used to describe structural, behavioral, functional, and metabolic disorders present at birth. Birth defects are the leading cause of infant mortality. The most common serious congenital disorders are heart defects, neural tube defects, and Down syndrome. The objective of the study is to determine the chromosomal abnormalities (structural and numerical) in congenital anomalies of suspected genetic causes, by peripheral lymphocytic culture and cytogenetic evaluation.

Material and Methods:

The study was a cross-sectional study undertaken for a duration of 2 years in a total of fifty cases of congenital anomalies with suspected genetic abnormalities. Peripheral blood from these cases was collected, and lymphocyte tissue culture was done for about 48–72 h. The best metaphase spread was selected, photographed, printed, and karyotypes were prepared. Findings of the study were then described by descriptive statistics.

Results:

Most common congenital anomalies were seen in the musculoskeletal system with 19 anomalies (38% of all cases) followed by genital organs with 12 anomalies (24% of all cases) and cleft lip and cleft palate with 8 anomalies (16% of all cases). Chromosomal anomalies were seen in six cases (12% of all cases). All were cases of Down syndrome and had trisomy 21.

Discussion and conclusion:

The present study might be of help in an earlier and better diagnosis of the cases of congenital anomalies, particularly the cases presenting with chromosomal abnormalities so that their counselling can be started at the earliest. It might be suggested that cytogenetic evaluation of cases of congenital anomalies should be included in routine investigation.
Estimation of Humerus Length by Measuring the Dimensions of its Lower Fragments
Authors: Prashanth K. U. , Pai Mangala M. , Murlimanju B. V. , Prabhu Latha V. , Prameela M. D.
Published: December 2021

Introduction:

The aim was to obtain the dimensions of the distal fragments of humerus bone, and the objective was to derive the formulae of regression, which will assist us to estimate the humeral length.

Material and Methods:

In this cadaveric research, 166 adult dried humeri from the department of anatomy were utilized. The measurements were performed by using the osteometric board and digital Vernier caliper. The seven distal humeral fragments were measured.

Results:

We were able to associate the dimensions of the distal humeral fragments with the humeral length (P = 0.00). The distances between the radial summit of the capitulum to the ulnar part of the medial epicondyle (right side Pearson's coefficient, 0.70 and left side, 0.78) and the radial side of the lateral condyle to the ulnar most side of the medial epicondyle (right side Pearson's coefficient, 0.69 and left side, 0.77) were the finest parameters, which can predict the length of humerus.

Discussion and Conclusion:

The regression calculations can be of help in estimating the humeral length. Such equations could be utilized during the examinations of forensic cases, where the estimation of height of an individual is required to be predicted, when only a few distal fragments of humerus are available. The figures of this investigation can also help in anthropology and archaeological research.
Estimation of Stature from Stride Length and Lower Limb Length of Efiks in Calabar South, Cross River State, South-South Nigeria
Authors: Ugochukwu Esomonu Godfrey , Augustine Egwu Ogugua , Samuel Eno , Ifechukwude Biose
Published: December 2021

Introduction:

The stride length of individuals is believed to correlate with their stature. The aim of the present study was to estimate stature using stride length and lower limb length of Efiks who are indigenes of Calabar South, Cross River State, South-South Nigeria.

Material and Methods:

Stature, lower extremity length, and stride length were measured and recorded for 300 subjects, 150 each of males and females who were recruited randomly from the community. The subjects were between 15 and 45 years.

Results:

Data obtained showed that the mean values for all measured anthropometric parameters including stature were higher in males than in females (P < 0.05). The correlation coefficient value derived from the linear regression equation for the estimation of stature using stride length and lower limb length revealed that there is a significant relationship between stature and the measured parameters for the studied population.

Discussion and Conclusion:

The positive correlation between stature and the measured parameters showed that stature can be estimated using the derived linear regression equations specific for the Efik natives of Cross River State. This can be of immense value in the field of crime detection toward stature estimation by forensic experts.
Asystole Due to Vagal Reflex in a Patient with Obstructive Sleep Apnea During Anesthesia Intubation with Laryngoscope
Authors: Huang Hsiang-Han , Hu Mei-Hua , Huang Go-Shine
Published: December 2021

Obstructive sleep apnea (OSA) is a serious sleep disorder. The complications of OSA are respiratory and cardiovascular events, including bradycardia, tachycardia, and even cardiac arrest. A 57-year-old female with OSA was vulnerable to vagal stimulation, developing severe bradycardia and asystole during general anesthesia while undergoing intubation with a conventional direct laryngoscope. This asystole case highlights the fact that anesthetized patients with OSA may experience increased parasympathetic activity (vagal tone) and vagal stimulation with consequent severe bradycardia and asystole. Atropine is recommended to resolve such conditions.
Potential Utility of Tranexamic Acid in Combat Trauma
Authors: Singh Shalendra , Ambooken George Cherian , Krishna Venigalla Sri
Published: December 2021

Tranexamic acid (TXA) lessens surgical bleeding and reduces mortality in patients with traumatic hemorrhage. Hemorrhage is common in combat zones and is one of the most common causes of mortality in a war scenario. The management of hemorrhage involves early arrest/temporization of ongoing bleed and restoration of blood volume to restore physiological stability as soon as possible. TXA by its antifibrinolytic action decreases blood loss, thus circumventing the requirement of massive crystalloid resuscitation, in turn an important causative factor for acute traumatic coagulopathy. Currently, TXA is recommended in acute hemorrhage worldwide; thus, its use in the combat scenario needs to be conceptualized by the primary caregivers. This conceptualization will be discussed in detail in this review article.
Comparison of the Incidence of Sudden Sensorineural Hearing Loss in Northern Taiwan and Southern Taiwan (2000–2015)
Authors: Tang Shih-En , Wu Shu-Yu , Jhou Fang-Yu , Chung Chi-Hsiang , Chien Wu-Chien , Wang Chih-Hung
Published: December 2021

Background:

The aim of the study is to compare the incidence of sudden sensorineural hearing loss (SSNHL) in Northern and Southern Taiwan, areas with different levels of air pollution.

Methods:

This was a retrospective, cross-sectional, 15-year nationwide study of SSNHL diagnoses between 2000 and 2015 in Taiwan National Health Insurance Research Database.

Results:

In total, 12,497 patients were included, 5584 in Northern Taiwan and 2532 in Southern Taiwan. In Northern and Southern Taiwan, the mean patients' age was 50.94 ± 16.62 and 50.70 ± 15.86 years, respectively; males (53.56% vs. 53.48%) were more frequently diagnosed than females (46.44% vs. 46.52%). The crude incidence was 41.13/100,000 and 49.45/100,000 in Northern and Southern Taiwan. The increasing trend was significantly higher in Southern than in Northern Taiwan. The maximal difference between Northern and Southern Taiwan, 44.31 versus 77.01/100,000 people/year, occurred in 2012. Mean particulate matter (PM2.5) annual concentration steadily decreased from 25.5 μg/m3 in 2010 to 19.20 μg/m3 in 2015 in Northern Taiwan, 37.10 μg/m3 in 2010 to 26.50 μg/m3 in 2015 in Southern Taiwan, Tainan City area, and 38.20 μg/m3 in 2010 to 25.10 μg/m3 in 2015 in Southern Taiwan, Kaohsiung City area. Cumulative PM2.5 exposure (PM2.5-year) from 2000 to 2015 was 441.1 μg/m3 × year in Northern Taiwan, 563.3 μg/m3 × year in Southern Taiwan – Tainan City area, and 684.3 μg/m3 × year in Southern Taiwan – Kaohsiung City area.

Conclusion:

SSNHL incidence increased from 2000 to 2015 and was higher in Southern than in Northern Taiwan. Cumulative PM2.5 exposure was higher in Southern than in Northern Taiwan. The relationship between cumulative PM2.5 exposure and SSNHL pathogenesis needs further investigation.
Accurate Integrated System to detect Pulmonary and Extra Pulmonary Tuberculosis using Machine Learning Algorithms
Authors: Rupinder Kaur  , Anurag Sharma
Published: December 2021

Several studies have been reported the use of machine learning algorithms in the detection of Tuberculosis, but studies that discuss the detection of both types of TB, i.e., Pulmonary and Extra Pulmonary Tuberculosis, using machine learning algorithms are lacking. Therefore, an integrated system based on machine learning models has been proposed in this paper to assist doctors and radiologists in interpreting patients’ data to detect of PTB and EPTB. Three basic machine learning algorithms, Decision Tree, Naïve Bayes, SVM, have been used to predict and compare their performance. The clinical data and the image data are used as input to the models and these datasets have been collected from various hospitals of Jalandhar, Punjab, India. The dataset used to train the model comprises 200 patients’ data containing 90 PTB patients, 67 EPTB patients, and 43 patients having NO TB. The validation dataset contains 49 patients, which exhibited the best accuracy of 95% for classifying PTB and EPTB using Decision Tree, a machine learning algorithm.
Effect of processing on vitamin A and some mineral contents of pumpkin (Cucurbita maxima) seed
Authors: Ambi A.A. , Bashir M. , Hafsat B.M. , Nura M. , Abubakar H. , Shatu M.
Published: December 2021

Pumpkin (Cucurbita maxima) seeds are important food materials used by most Nigerian families due to their delicious taste, aroma and appeal. In this study, changes between chemical composition of processed and unprocessed pumpkin seeds (Cucurbita maxima) was investigated. The nutritional compositions were analyzed by standard methods. The vitamin A contents 36.83 μg/100g and 33.72 μg/100g respectively. The copper, zinc, magnesium,phosphorus and iron contents of processed seeds were; 0.063, 0.43, 47.67, 58.19 and 610.77 ppm respectively while the values for unprocessed were; 0.047, 0.41, 36.73, 58.45 and 211.19 ppm respectively with significant difference between the processed and unprocessed. The finding suggests that pumpkin seed is rich in this vitamin and minerals. If utilized efficiently. It can also ameliorate micronutrients deficiency problem in population of all age groups.
Phytochemical constituents and antibacterial activities of indigenous chewing stick (Anogeissus leiocarpus) stem
Authors: Namadina M.M. , Mukhtar A.U. , Karaye S.I. , Musa F.M. , Bah I.H. , Maitama F.Y.
Published: December 2021

The stems from Anogeissus leiocarpus are commonly used as chewing sticks in Northern Nigeria. If properly used, the chewing sticks have proven to be effective in removing dental plaque due to mechanical cleaning and enhanced salivation. Chewing sticks from other plants have been shown to display antimicrobial activities against a broad spectrum of microorganisms. However, there is limited information available in Northern Nigeria on the chemical composition, antimicrobial properties and the ability of the plants under study to prevent bacterial adhesion to tooth surface. Therefore, the purpose of this study was to ascertain the phytochemical and antibacterial properties of Anogeissus leiocarpus and correlate the results obtained to their ethnomedicinal uses as chewing sticks. Powdered stem was exhaustively extracted using methanol at room temperature for 72 hours. Antibacterial activities of the methanol extract was assessed using the agar well diffusion methods against the oral pathogens, Staphylococcus aureus, Streptococcus salivarius, Streptococcus pyogenes, Streptococcus mutans and Streptococcus sanguinis. Acute toxicity study was achieved using Lorke method. Phytochemicals which include flavonoid, steroid, triterpenes, alkaloids, tannins, carbohydrate, glycoside, phenols were detected in the extracts while anthraquinones was absent. The antibacterial results revealed that, the methanol extract had promising antibacterial activity. S. aureuswas found to be the most susceptible bacteria at 500mg/ml with inhibition of 22 mm, Streptococcus salivarius, Streptococcus pyogenes and Streptococcus sanguinis were inhibited at 16 mm while Streptococcus mutans showed inhibition of 14 mm. The extract have MIC and MBC of 31.25 mg/ml and 62.5 mg/ml respectively against all the tested clinical isolates. The LD50 of Anogeissus leiocarpus was found to be greater than 5000 mg/kg and could be considered safe for consumption.
Radio frequency identification (RFID) and database- based attendance management system
Authors: Ahmad U.S. , Bisu A.A. , Umar F.A. , Balarabe U.
Published: December 2021

Effective record and management of students and staff attendance of academic and non academic activities/events are vital for the smooth functioning of the educational system. This is still a difficult task in most institutions, particularly in Nigeria with a large number of staff and students attending different academic and non-academic functions. This is even more difficult to manage when the traditional method of paper and pen is used to record attendance, prone to errors, and in most cases lack integrity due to manual handling of the record. Electronics and Information Communications Technologies (ICT) can be deployed to help mitigate these problems and improve reliability, ease, speed, efficiency, effectiveness, and integrity of recording and managing attendance. In this work, we used Radio Frequency Identification (RFID) and database management to provide an alternative solution that addresses issues of objects (humans and non-humans) authentication, authorization, and record management with high accuracy, reliability, and integrity using RFID-Arduino technology. The system works by reading staff’s and/or student’s details stored in a unique RF tag wirelessly through theRF reader and then matched and stored the record in the system’s database. Attendancemarking was achieved by matching the scanned ID with the database record. The system was successfully implemented and tested with 10 students and staff participants with the feature of exporting the records into excel format for statistical analysis and performance evaluation.