bluuebunny/crossref_metadata_2025 huggingface dataset:
Monochronic Vs. Polychronic: A Profile of Academic Time Use Among Online Distance Education Students
Authors: Neves Ana Maria , Morgado Lina
Published: January 2021

The results presented are part of a doctoral thesis which is being finalized. The research is centred on the online distance learning student experience in higher education, considering the variable time management, its relationship with technologies, and the virtualization of teaching and learning. Exploratory in nature, the research takes the form of a case study using a mixed methodology. One of the main objectives of the study is to contribute to the construction of a theoretical framework on the distance learning student time variable. We present a profile of academic time use by e-students (monochronic or polychronic) and suggest an intermediate profile. The conclusions point out that the profile of academic time use varies according to the degree of the course attended. It was found that undergraduate students show a more polychronic profile than masters and doctoral students.
A holttest-azonosítás hazai helyzetének értékelése 1951 és 2015 között I.
Authors: Kormos Tímea , Csatai Tamás , Menczőné Fekete Margit
Published: January 2021

The authors provide an overview of how unknown human bodies have been identified in Hungary in the past 65 years.
A 3D térszkenner működése, tapasztalatok, lehetséges további felhasználási területek
Authors: Pásztor László
Published: January 2021

The author provides an overview of how new digital technology is used in forensic sciences.
LOCAL DETERMINANTS OF DRIVING BEHAVIOURS: INSTALLATION THEORY INTERVENTIONS TO REDUCE FUEL CONSUMPTION AMONG TRUCK DRIVERS IN COLOMBIA
Authors: Yamin Paulius , Lahlou Saadi , Ortega Santiago , Skrickij Viktor
Published: January 2021

Eco-driving has been linked to considerable reductions in negative externalities and costs for transportation companies, employees and communities (including fuel consumption, safety and emission benefits). Nevertheless, some of the biggest challenges to its implementation are related to promoting behavioural change among drivers. This paper presents the results of three behavioural field interventions that were successful to improve fuel efficiency in heavy freight transportation. The interventions brought further improvement even though the target company already had strong training, incentive, control and feedback procedures in place. The Installation Theory framework and the Subjective Evidence-Based Ethnography (SEBE) technique were used to systematically analyse determinants of driving behaviours, and to design cost-effective behavioural interventions based on social norms. The effects of three interventions were then tested using a pre-test post-test control group design among 211 drivers of the company. Results show significant decreases in average monthly fuel consumption of up to 4% in month 1 and up to 4.5% in month 3. Our findings show (with certain qualifications), that the Installation Theory framework and social norm interventions can be a cost-effective method to improve fuel efficiency in road freight transport companies, even when strong training, incentive, control and feedback procedures are already in place.
Effectiveness and Safety of Antiretroviral Treatment in Pre- and Postmenopausal Women Living with HIV in a Multicentre Cohort
Authors: Alejos Belén , Suárez-García Inés , Bernardino Jose Ignacio , Blanco José Ramón , Peñaranda Maria , Bautista Azucena , Gutiérrez Félix , Jarrín Inma , Hernando Victoria ,   the CORIS cohort
Published: January 2021

Background

To compare effectiveness and safety of initial antiretroviral therapy (ART) among premenopausal and postmenopausal women living with HIV aged 45–60 years from the cohort of the Spanish HIV/AIDS Research Network (CoRIS) who initiated ART between 2004 and 2015.

Methods

Multivariable regression models were used to compare post- versus premenopausal women regarding viral suppression (≤50 copies/ml), change in CD4+ T-cell count and time to treatment change (TC) at 48 and 96 weeks after ART initiation.

Results

Among 230 women, 154 (67%) were premeno-pausal at ART initiation. The most frequent initial regimen was tenofovir disoproxil fumarate/emtricitabine/efavirenz prescribed in 49 (32%) premenopausal and 22 (29%) postmenopausal women. The proportion of TC was 35.7% and 30.3% at 48 weeks and 51.3% and 47.4% at 96 weeks, for pre- and postmenopausal women, respectively. There were no significant differences in CD4+ T-cell count changes from ART initiation, viral load suppression, time to TC or reason for TC between both groups. The main reason for TC was occurrence of an adverse event, followed by simplification, in both groups.

Conclusions

ART effectiveness and safety did not differ significantly between pre- and postmenopausal women.
Failure to respond to a coral disease epizootic in Florida: causes and consequences
Authors: Precht William
Published: January 2021

Stony coral tissue loss disease (SCTLD) was first observed in September 2014 near Virginia Key, Florida. In roughly six years, the disease spread throughout Florida and into the greater Caribbean basin. The high prevalence of SCTLD and high resulting mortality in coral populations, and the large number of susceptible species affected, suggest that this outbreak is one of the most lethal ever recorded. The initial recognition and management response to this catastrophic disease in Florida was slow, which delayed the start of monitoring programs and prevented coordinated research programs by at least two years. The slow management response was a result of several factors that operated concurrently.

First, the Port Miami dredging project was ongoing during the coral disease epidemic and dredging rather than SCTLD was blamed by some managers and local environmental groups for the extreme coral losses reported in the project’s compliance monitoring program. Second, this blame was amplified in the media because dredging projects are intuitively assumed to be bad for coral reefs. Third, during this same time State of Florida policy prohibited government employees to acknowledge global warming in their work. This was problematic because ocean warming is a proximal cause of many coral diseases. As a result, the well-known links between warming and coral disease were ignored. A consequence of this policy was that the dredging project provided an easy target to blame for the coral mortality noted in the monitoring program, despite convincing data that suggested otherwise.

Specifically, results from the intensive compliance monitoring program, conducted by trained scientific divers, were clear. SCTLD that was killing massive numbers of corals throughout Florida was also killing corals at the dredge site – and in the same proportions and among the same suite of species. While eradication of the disease was never a possibility, early control measures may have slowed its spread or allowed for the rescue of significant numbers of large colonies of iconic species. This coral disease outbreak has similarities to the COVID-19 pandemic in the United States and there are lessons learned from both that will improve disease response outcomes in the future, to the benefit of coral reefs and human populations.
Scénarios climatiques en finance
Authors: Boissinot Jean , Heller Thomas C.
Published: January 2021

Le recours à des scénarios permettant d'appréhender le changement climatique et/ou la transition bas carbone s'impose progressivement en matière de financement et d'investissement. Cet usage, cohérent avec la nature des phénomènes étudiés (incertitude profonde), appelle toutefois une réflexion raisonnée : l'approche par les scénarios est absolument différente de l'approche probabiliste qui sous-tend l'analyse économique et les techniques financières. Après avoir discuté de l'usage des scénarios dans un contexte financier, nous évoquons trois enjeux propres à la « finance verte » (l'utilisation de scénarios « normatifs », le développement de scénarios dans le cadre de stress tests et la construction de scénarios adaptés au besoin des utilisateurs financiers). Classification JEL : B41, E58, Q54, Q58.
Les conséquences du changement climatique pour la politique monétaire
Authors: Dées Stéphane , Weber Pierre-François
Published: January 2021

Le changement climatique est l'un des grands défis auxquels doivent faire face les banques centrales, affectant potentiellement les variables macroéconomiques utilisées pour fonder leurs décisions monétaires et les canaux de transmission de celles-ci à l'économie réelle. Il pourrait affecter les marges de manœuvre dont les banques centrales disposent pour remplir leur mandat et, en raison d'une plus grande incertitude, pourrait également les amener à examiner certains des arbitrages qu'elles doivent trancher dans un régime monétaire de ciblage d'inflation. En conséquence, les banques centrales doivent non seulement intégrer les effets du changement climatique dans leurs analyses et leurs modèles, mais aussi prendre en compte les risques climatiques dans l'élaboration des instruments qui servent à mettre en œuvre la politique monétaire. Classification JEL : E52, E58, Q54, Q58.
Stratégies d'investissement bas-carbone
Authors: Goosens Bart , Jallet Sébastien , Czupryna David
Published: January 2021

Les investisseurs du monde entier sont aujourd'hui de plus en plus nombreux à prendre en considération le risque climatique dans leurs décisions d'investissement. Plusieurs approches ont été développées pour intégrer cette problématique dans l'analyse des investissements et la constitution d'un portefeuille. Dans cet article, nous analysons deux stratégies standards dédiées à l'optimisation de l'empreinte carbone d'un portefeuille : l'exclusion et l'optimisation. Nos simulations révèlent que l'optimisation permet une importante réduction de CO 2 en portefeuille, sans accroître son risque et ce avec un faible biais sectoriel. L'optimisation améliore le profil de risque ESG global du portefeuille et répond aux enjeux climatiques soulevés par les investisseurs. Cette approche devrait selon nous devenir la norme dans un avenir proche. Classification JEL : G11, Q54, Q56.
Les déterminants de la performance éthique des banques islamiques
Authors: Roussel Josse , Obeid Hassan , Slimene Nadia
Published: January 2021

L'objectif de cette étude est d'analyser les déterminants de la performance éthique, mesurée par le respect des principes de la Chariah , de l'industrie bancaire islamique. À partir d'un questionnaire distribué aux clients de banques islamiques, nous avons mesuré le poids relatif des différents facteurs ayant une influence sur la performance éthique des banques islamiques. Nous nous appuyons sur la régression logistique multinomiale pour évaluer si le facteur religieux est fortement corrélé à la performance éthique. Classification JEL : G21, P40.
Quel droit à la ville pour des personnes en fragilité psychique ? Les enseignements de l’étude d’un groupe d’entraide mutuelle
Authors: Painter Sara
Published: January 2021

Faire partie de la ville et pouvoir agir sur elle sont deux composantes majeures du droit à la ville tel qu’il a été élaboré par Henri Lefebvre. Mais qu’en est-il pour des personnes en fragilité psychique ? Sous quelles formes ces personnes peuvent-elles exercer un tel droit ? Dans cet article, nous proposons les résultats d’une enquête qualitative menée dans une association d’entraide entre pairs, appelée « groupe d’entraide mutuelle » ( gem ) et située dans une petite ville française. De quelle manière le gem étudié contribue-t-il à restaurer un lien entre les adhérents et la ville ? En quoi fréquenter cette association favorise-t-il le sentiment qu’ont ces personnes de faire partie de la ville, tout en développant leur pouvoir d’agir sur la ville ? Telles sont les questions abordées dans ce texte qui vise à nourrir la réflexion sur l’inclusion dans la ville des personnes vieillissantes en fragilité psychique.
Psychologie positive et formation des adultes : le flow ou le plaisir de comprendre tout au long de la vie
Authors: Heutte Jean
Published: January 2021

Sous l’impulsion initiale de Seligman et Csíkszentmihályi, la psychologie positive qui a émergé il y a maintenant un peu plus d’une vingtaine d’années peut être définie comme l’étude des conditions et processus qui contribuent à l’épanouissement ou au fonctionnement optimal des individus, des groupes et des institutions. Cette quatrième vague de la psychologie scientifique contemporaine s’intéresse plus particulièrement à l’étude empirique du développement humain optimal. Elle marque aussi la mise en lumière de la théorie de l’expérience optimale ou autotélique (du « flow ») élaborée dans les années 1970 par Csíkszentmihályi. Cependant, peu de travaux en langue française sont consacrés aux apports de la psychologie positive dans le champ spécifique de l’éducation et de la formation des adultes. Aussi, après un focus sur l’émergence de la préoccupation du développement humain optimal, puis un examen critique de la psychologie positive, l’essentiel de cette note de synthèse concernera l’expérience autotélique, plus particulièrement dans son éclairage original de la dimension sociale de l’apprenance, ainsi que de la persistance à vouloir comprendre tout au long de la vie.
Status of Choriocapillaris in Fellow Eyes of Patients With Unilateral Retinal Vein Occlusions
Authors: Maltsev Dmitrii S. , Kulikov Alexei N. , Kazak Alina A. , Burnasheva Maria A.
Published: January 2021

BACKGROUND AND OBJECTIVE:

To study the status of the choriocapillaris in fellow eyes of patients with unilateral retinal vein occlusions (RVOs).

PATIENTS AND METHODS:

Thirty-two healthy eyes of patients with unilateral RVO and 16 eyes of healthy age-matched controls were included. Choriocapillaris flow voids and device-specific choriocapillaris total flow areas were quantified based on 3-mm optical coherence tomography angiography (OCTA) scans and their correlation with the number of resolved para-central acute middle maculopathy (PAMM) lesions on 6-mm OCTA scans was calculated.

RESULTS:

In fellow eyes of unilateral RVOs and in eyes of healthy individuals, the number of choriocapillaris flow voids was 20.8 ± 5.5 and 13.4 ± 5.4, respectively (
P
< .001), and choriocapillaris total flow area was 6.0 ± 0.34 mm
2
and 6.22 ± 0.13 mm
2
, respectively (
P
= .005). The number of resolved PAMM lesions correlates significantly with the number of choriocapillaris flow voids (r = 0.44;
P
= .002) and with choriocapillaris total flow area (r = −0.52;
P
< .001).

CONCLUSION:

Fellow eyes of patients with unilateral RVO demonstrate a substantial decrease of perfusion in choriocapillaris, which correlates with the prevalence of small resolved PAMM lesions.

[
Ophthalmic Surg Lasers Imaging Retina
. 2021;52:23–28.]
Posterior Pigment Deposition as a Marker of Persistently Open Retinectomy Edge Following Retinal Detachment Repair
Authors: Nair Archana A. , Pandit Saagar , Eliott Dean , Modi Yasha S.
Published: January 2021

Posterior pigment dispersion is a rare ophthalmic finding that has been reported in patients undergoing retinectomy with silicone oil placement and in patients who underwent significant anterior segment manipulation and vitrectomy. The pigment release is believed to occur from retinal pigment epithelium (RPE) cells in the former and the posterior iris in the latter. The exact timing of this pre-retinal pigment deposition is unknown but typically is mild and occurs over several months. A rapid progression of diffuse preretinal pigmentation is uncommon and may be suggestive of persistent RPE release from an open break or continued iris trauma with posterior pigment release. This report describes a case of profound posterior pigment deposition more than 4 months after retinectomy and oil in a patient with a persistently open retinectomy edge with anterior retinal detachment. The rapidity of pigment deposition was the clue to recognizing this subtle anterior detachment under silicone oil.

[
Ophthalmic Surg Lasers Imaging Retina
. 2021;52:47–49.]
Retinopathy Secondary to Uncomplicated
Plasmodium vivax
Malaria
Authors: Padhy Srikanta Kumar , Sahu Suman , Govindahari Vishal
Published: January 2021

To report a case of bilateral malarial retinopathy secondary to uncomplicated
Plasmodium vivax
malaria. A 45-year-old male patient presented with sudden onset of diminution of vision both eyes and was treated for
P. vivax
malaria 1 week before the ocular symptoms. Dilated fundus examination revealed multiple intraretinal (dot-blot, flame shaped) hemorrhages, cotton-wool spots, and areas of retinal whitening predominantly involving the posterior pole both eyes, with features being more severe in left eye. Optical coherence tomography revealed bilateral subfoveal neurosensory detachments. Retinopathy is typically rare in the settings of
P. vivax
malaria, albeit commonly seen in patients with cerebral malaria (
Plasmodium falciparum
).

[
Ophthalmic Surg Lasers Imaging Retina
. 2021;52:50–51.]
Teachable Moments and Strategies for First-Time Leaders
Authors: Graham Tymon M. , Coleman Curtis L. , Coleman July P.
Published: January 2021

Leaders emerge from different levels of an organization. Some arise as young leaders, fresh from their educational journeys, while others are knowingly or unknowingly groomed and the right opportunity and time intersect for an appointment. There is no doubt that leaders can lead without an official title; however, once a title is given, much work is needed to excel and advance not only oneself but also the organization. Many leaders come into mid to high level positions with skills needed for the tasks at hand but lack various strategies to navigate the organizational landscape without burning bridges or falling into pitfalls. This chapter, per the authors, illustrates how true and effective leaders transition well into their new role or spaces, track the landscape by observing their environment, and prioritize the grooming, growing, and transformation of others to create more leaders. This chapter reveals teachable moments in the lives of others and strategies for first time leaders to adopt in order to grow as a leader and avoid missteps.
The Notable Approach of Stories in Comprehending the First-Time Leader's Behavioural Traits
Authors: Kaushal Nidhi
Published: January 2021

The psychological perspective of stories has a significant impact on transforming the perception of the leader and group members towards each other, by developing positive mindfulness, cognizance, and sensibility. The application and analysis of narratives in the context of a leader's behavioural traits present a new prospect in learning leadership styles and tactics. Literary scholars have deliberated the ideology of the tales through different perspectives, but it's a kind of a novel attempt in itself to present the relevance of tales in the organizational work along with their associated concepts, and their efficacy in developing strategies. This chapter signifies the relativity of stories in the erudition of leadership policies and recognizing the qualities of first-line managers and their effectiveness in organizational development.
From Followers to Leaders
Authors: Scott Leodis , Howard Joanne E. , Howard Diane M. , Freeman Angela C.
Published: January 2021

The aim of this chapter is to respond to the emerging scholarship regarding first-time leaders and their situational and potential lifelong learning environment. While transformational leadership may be the long-term goal, this chapter explains how the process of other traditional leadership theories can help assess and build upon its effectiveness. In this regard, this chapter argues that transformational leadership can be conceptually understood through five other supporting leadership theories, namely behavioral, psychodynamic, situational, path-goal, and leader-member exchange. Thus, there are essential characteristics from traditional leadership theories and others that can help aspiring transformational first-time leaders. Through lifelong learning and development of these leadership approaches, culminating characteristics for aspiring transformational first-time leaders must include not only motivation and morality, but also care and concern for others.
The Grand Connection
Authors: Ward Catherine , Reneau Clint-Michael
Published: January 2021

This chapter outlines first-time leadership characteristics demonstrated by Mae Jemison, the first Black female astronaut in the United States of America, to highlight the qualities and characteristics needed to be a successful first-time leader. These characteristics are qualities leaders can identify within themselves, develop, and implement in their daily practice. This book chapter explores 1) the ability to identify and define a personal vision, 2) having a sense of purpose, 3) vulnerability and the willingness to take risks, 4) courage, and 5) ultimately, how leadership is about seeing and valuing the gifts and talents of others and the ability to truly connect with others to fulfill a greater purpose.
A Review of Concrete Performance Employing a Starch as Addition Using Several Regression Techniques
Authors: Guzmán Torres José Alberto , Mota Francisco Javier Domínguez , Guzmán Elia Mercedes Alonso , Molina Wilfrido Martínez , Ruiz Gerardo Tinoco
Published: January 2021

Nowadays, the use of additions in the concrete blends to improve its behavior is increasingly noticeable. The present research describes the effect of adding a polymer to a concrete blend of materials belonging to the zone of Morelia, Mexico. The polymer is an organic starch gained commercially, and it was added at a 2 percent per cement weight. The concrete’s physical and mechanical performance was monitored against a control blend to quantify any improvements. Destructive and non-destructive tests were performed. The addition of a polymer improved substantial concrete performance. Numerical models found correlations among the tests made, a technique by machine learning for establishing predictive models to assess the results.
Influence of Nano Particles in the Flexural Behavior of High-Strength Reinforced Concrete Beams
Authors: Fahmy Naglaa Glal-Eldin , El-Mashery Rasha , Sadeek Rabiee Ali , Abd El-Hafaz L.M.
Published: January 2021

High strength concrete (HSC) characterized by high compressive strength but lower ductility compared to normal strength concrete. This low ductility limits the benefit of using HSC in building safe structures. Nanomaterials have gained increased attention because of their improvement of mechanical properties of concrete. In this paper we present an experimental study of the flexural behavior of reinforced beams composed of high-strength concrete and nanomaterials. Eight simply supported rectangular beams were fabricated with identical geometries and reinforcements, and then tested under two third-point loads. The study investigated the concrete compressive strength (50 and 75 N/mm2) as a function of the type of nanomaterial (nanosilica, nanotitanium and nanosilica/nanotitanium hybrid) and the nanomaterial concentration (0%, 0.5% and 1.0%). The experimental results showed that nano particles can be very effective in improving compressive and tensile strength of HSC, nanotitanium is more effective than nanosilica in compressive strength. Also, binary usage of hybrid mixture (nanosilica + nanotitanium) had a remarkable improvement appearing in compressive and tensile strength than using the same percentage of single type of nanomaterials used separately. The reduction in flexural ductility due to the use of higher strength concrete can be compensated by adding nanomaterials. The percentage of concentration, concrete grade and the type of nanomaterials, could predominantly affect the flexural behavior of HSRC beams.
Identification and Characterization of Zebrafish Tlr4 Coreceptor Md-2
Authors: Loes Andrea N. , Hinman Melissa N. , Farnsworth Dylan R. , Miller Adam C. , Guillemin Karen , Harms Michael J.
Published: January 2021

The zebrafish (Danio rerio) is a powerful model organism for studies of the innate immune system. One apparent difference between human and zebrafish innate immunity is the cellular machinery for LPS sensing. In amniotes, the protein complex formed by TLR4 and myeloid differentiation factor 2 (Tlr4/Md-2) recognizes the bacterial molecule LPS and triggers an inflammatory response. It is believed that zebrafish have neither Md-2 nor Tlr4; Md-2 has not been identified outside of amniotes, whereas the zebrafish tlr4 genes appear to be paralogs, not orthologs, of amniote TLR4s. We revisited these conclusions. We identified a zebrafish gene encoding Md-2, ly96. Using single-cell RNA sequencing, we found that ly96 is transcribed in cells that also transcribe genes diagnostic for innate immune cells, including the zebrafish tlr4-like genes. In larval zebrafish, ly96 is expressed in a small number of macrophage-like cells. In a functional assay, zebrafish Md-2 and Tlr4ba form a complex that activates NF-κB signaling in response to LPS. In larval zebrafish ly96 loss-of-function mutations perturbed LPS-induced cytokine production but gave little protection against LPS toxicity. Finally, by analyzing the genomic context of tlr4 genes in 11 jawed vertebrates, we found that tlr4 arose prior to the divergence of teleosts and tetrapods. Thus, an LPS-sensitive Tlr4/Md-2 complex is likely an ancestral feature shared by mammals and zebrafish, rather than a de novo invention on the tetrapod lineage. We hypothesize that zebrafish retain an ancestral, low-sensitivity Tlr4/Md-2 complex that confers LPS responsiveness to a specific subset of innate immune cells.
Polyfunctional Tier 2–Neutralizing Antibodies Cloned following HIV-1 Env Macaque Immunization Mirror Native Antibodies in a Human Donor
Authors: Spencer David A. , Malherbe Delphine C. , Vázquez Bernat Néstor , Ádori Monika , Goldberg Benjamin , Dambrauskas Nicholas , Henderson Heidi , Pandey Shilpi , Cheever Tracy , Barnette Philip , Sutton William F. , Ackerman Margaret E. , Kobie James J. , Sather D. Noah , Karlsson Hedestam Gunilla B. , Haigwood Nancy L. , Hessell Ann J.
Published: January 2021

Vaccine efforts to combat HIV are challenged by the global diversity of viral strains and shielding of neutralization epitopes on the viral envelope glycoprotein trimer. Even so, the isolation of broadly neutralizing Abs from infected individuals suggests the potential for eliciting protective Abs through vaccination. This study reports a panel of 58 mAbs cloned from a rhesus macaque (Macaca mulatta) immunized with envelope glycoprotein immunogens curated from an HIV-1 clade C–infected volunteer. Twenty mAbs showed neutralizing activity, and the strongest neutralizer displayed 92% breadth with a median IC50 of 1.35 μg/ml against a 13-virus panel. Neutralizing mAbs predominantly targeted linear epitopes in the V3 region in the cradle orientation (V3C) with others targeting the V3 ladle orientation (V3L), the CD4 binding site (CD4bs), C1, C4, or gp41. Nonneutralizing mAbs bound C1, C5, or undetermined conformational epitopes. Neutralization potency strongly correlated with the magnitude of binding to infected primary macaque splenocytes and to the level of Ab-dependent cellular cytotoxicity, but did not predict the degree of Ab-dependent cellular phagocytosis. Using an individualized germline gene database, mAbs were traced to 23 of 72 functional IgHV alleles. Neutralizing V3C Abs displayed minimal nucleotide somatic hypermutation in the H chain V region (3.77%), indicating that relatively little affinity maturation was needed to achieve in-clade neutralization breadth. Overall, this study underscores the polyfunctional nature of vaccine-elicited tier 2–neutralizing V3 Abs and demonstrates partial reproduction of the human donor’s humoral immune response through nonhuman primate vaccination.
Drone assessment of habitat selection and breeding success of Gull-billed Tern Gelochelidon nilotica nesting on low-accessibility sites: a case study
Authors: Scarton Francesco , Valle Roberto
Published: January 2021

The use of drones in the study of waterbird breeding biology has received considerable attention in the last years, but very few studies were made along the Mediterranean. We studied habitat selection and breeding success of the Gull-billed Tern Gelochelidon nilotica in two colonies inside fish farms along the Italian Adriatic coastline, using a small, commercial drone. Both colonies were located on small islets surrounded by very shallow water and clayey bottoms, thus being difficult to access. Compared with availability, the Gull-billed Terns selected quadrats higher above the water level, with a higher vegetation cover, which lay farther from the water edge, contain less water, and which are more frequently located in the center of the islands. 147 of 178 clutches (mean clutch size ± SD: 2.61 ± 0.58) hatched 383 chicks (82.5%; 2.15 ± 1.09 chicks per nest), with large differences between the two colonies. Hatching success was 95.0% and 69.1%; the most common cause of egg loss was flooding (97.0%). Nest attendance could easily be ascertained by 30-m above ground level drone-derived imagery. The use of a drone allowed the study of some aspects of the breeding biology of the Gull Billed Tern in two breeding sites where the traditional field approach, i.e. researchers reaching the sites by boat, would have been very difficult, causing unavoidable and prolonged disturbance to the nesting adults.
Cyberbullying among Young Saudi Online Gamers and Its Relation to Depression
Authors: AlJaffer Mohammed , Alshehri Khalid , Almutairi Malak , Aljumaiah Abdullah , Alfraiji Abdulaziz , Hakami Mohammed , Al-Dossary Muhammad , Irfan Tehreem
Published: January 2021

Background:

There is a worldwide interest that has been dedicated to discovering the impact of online video games on mental health among young gamers and its association with the risk of cyberbullying. Many studies have suggested that cyberbullying is associated with the development of depression. To our knowledge, there are no studies that have been carried out in Saudi Arabia that addressed such a topic.

Objective:

The objective of this study is to estimate the prevalence of cyberbullying among Saudi online video gamers, and it is associated risk to the development of depression.

Methods:

Using an anonymous online questionnaire posted on social media, a total of 143 caregivers of young Saudi gamers agreed to complete the questionnaire. The questionnaire examined multiple factors including addressing the act of cyberbullying for their association with developing depression. The Patient Health Questionnaire-9 was used to evaluate for depression.

Results:

Out of 143 gamers, 30 reported being cyberbullied as disclosed by their caregivers, half of which showed depressive symptoms. This had a statistical significance of P = 0.00001. Online chatting was associated with an increased risk of being cyberbullied.

Conclusion:

The trend of cyberbullying among young gamers is alarming. Depression and suicidality are strongly associated with such phenomena. The impact on emotional and behavioral changes among this group of individuals is encouraged to be further addressed and investigated.
Role of Sleep and Sleep Disorders on Motor and Nonmotor Features of Parkinson's Disease
Authors: Korkmaz Bektaş , Yıldız Büşra , Şenel Gülçin Benbir , Karadeniz Derya
Published: January 2021

Purpose of the Study:

Sleep problems are frequently encountered in Parkinson's disease (PD), including sleep fragmentation, rapid eye movement (REM) sleep behavior disorder (RBD), excessive daytime sleepiness, and sleep-disordered breathing. In this study, we aimed to examine the relationship between sleep structure and sleep disorders on motor and nonmotor symptoms of PD.

Basic Procedures:

Seventy-three consecutive patients diagnosed as having PD based on the United Kingdom Brain Bank Criteria were prospectively enrolled. Detailed histories of PD-related symptoms, sleep anamnesis, subjective evaluation of nocturnal sleep, and daytime sleepiness were made. All participants underwent one-night video-polysomnography (PSG) and multiple sleep latency test (MSLT) in a sleep laboratory.

Main Findings:

A significant correlation was present between female sex and RLS (P = 0.009). Age and body mass index showed no significant correlations with PD-related parameters including Unified Parkinson's Disease Rating Scale (UPDRS) scores and PSG parameters. RLS or RBD showed no significant correlation with PD-related variables. Among PSG parameters, higher REM sleep percentages showed a statistically significant correlation with increased scores of UPDRS part III (P = 0.007). A statistically significant negative correlation was present between apnea–hypopnea index and PD duration (P = 0.005), and the presence of obstructive sleep apnea syndrome (OSAS) was statistically significantly correlated with lower scores of UPDRS part II (P = 0.050). The mean sleep latency in MSLT decreased as the dose of dopaminergic treatment increased (P = 0.016).

Principal Conclusions:

Our study demonstrated that changes in sleep structure and sleep-related disorders observed in PD could be attributed to intrinsic disease-related properties. The presence of changes in sleep structure as higher REM sleep percentages and sleep-related disorders such as OSAS show correlations with the severity of PD.
Lipemia retinalis with different therapeutic responses
Authors: Lai Chun-Chieh , Chang Chun-Hsiang
Published: January 2021

Lipemia retinalis is characterized by retinal blood vessels that are creamy white in color and is considered to be directly correlated to serum triglyceride levels. It is a rare retinal manifestation, with typical serum triglyceride levels above 2500 mg/dL required for its expression. We report two cases of lipemia retinalis with hypertriglyceridemia who presented with different retinal pictures during a 5-year follow-up. One showed a normalization of retinal vessels even though the serum triglyceride level was still far more than 2500 mg/dL (4660 mg/dL), but the other had persistent creamy white discoloration despite decreases in serum triglyceride level to below 2500 mg/dL (1031 mg/dL). This suggests that the absolute serum triglyceride level may not be the sole determinant of the typical retinal manifestation. In spite of this, early detection that leads to timely treatment will assist in prevention of severe ocular and systemic vascular complications.
Xanthogranulomatous cholecystitis mimicking gallbladder cancer on 18F-fluorodeoxyglucose positron emission tomography/computed tomography scan
Authors: Gupta Nitin , Verma Ritu , Belho Ethel , Dhawan Shashi
Published: January 2021

The abnormal thickening of the gallbladder (GB) wall can be caused by a malignant condition like gallbladder carcinoma or by benign lesions such as chronic cholecystitis or xanthogranulomatous cholecystitis (XGC). Mural thickening is a common finding between them as fluorodeoxyglucose (FDG) can be taken up by inflammatory cells also. Here, we present a patient with irregular thickening of the GB wall which was suspected to of GB carcinoma since FDG positron emission tomography/computed tomography scan showed increased tracer uptake in the lesion. However, after surgery the histopathological report was suggestive of XGC.
The Effect Of Use Various Types Cables Spark Plugs To 108cc Scooter Machine Performance
Authors: Irwansyah Irwansyah , Al Banjari Muhammad Arsad , Setiawan Feddy Wanditya
Published: January 2021

Ideally, the combustion system system in the combustion chamber, this is an alarm in order to get the right combustion results and of course will make the motorcycle power with the right fuel consumption too. There are at least 3 (three) important factors that must be met by the combustion system in the combustion motorbike, especially for gasoline-type automatic motorbikes. These three factors include the existence of an ideal fuel and air mixture (good air-fuel mixture), the right timing of business performance in producing spark plug spark quality (good spark) and good combustion chamber (good compression). An air-fuel mixture that can produce a homogeneous mixing of fuel and air. The acquisition of perfect combustion is directly proportional to the quality of a good type of spark plug cable. The ability of the type of spark plug cable must be able to support high electric current processes to produce the ideal spark. In this study, the type of business cable used is the brand that is in the market, namely proteck, extreme, hitachi and standard cable types. Performed variation testing 4 (four) types of spark plug cables. The test results show the best engine performance of a gasoline-fueled automatic motorbike using extreme spark plug cables, with a torque of 5,669 Nm at 7854 rpm and a power of 6,252 hp at 7854 rpm
BİR İŞLETMEDE AZ TEKRARLI İŞLERİN RİSK DEĞERLENDİRMESİ İÇİN UYGUN METOTLARIN BELİRLENMESİ VE UYGULANMASI
Authors: TORUN Ufuk , ATICI ULUSU Hilal , GÜNDÜZ Tülin
Published: January 2021

Ergonomi konusundaki en önemli çalışma alanlarından birini kas iskelet sistemi rahatsızlıkları (KİSR) oluşturmaktadır. Ancak bir çalışanın günlük işinde az yer tutan işlerde KİSR risklerinin değerlendirilmesi, analizlerin uzun ve detaylı çalışma gerektirmesinden dolayı genellikle görmezden gelinmekte veya ertelenmektedir. Bu çalışmada az tekrarlı işlerde ergonomik risklerin değerlendirilmesi için bir kontrol listesi hazırlanması amaçlanmıştır. Bu liste ile riskler pratik ve hızlı bir şekilde değerlendirilerek önlemler için öncelikleri belirlenebilecektir. Çalışmada, bir otomotiv işletmesinde çalışanın günlük çalışmasının %25’inden az zaman alan işlemler dikkate alınmıştır. Bu işlemlerin gerektirdiği hareket türleri; yük elleçleme, kuvvet uygulama ve itme-çekme olmak üzere üç grup altında toplanmıştır. Her hareket türü için, literatürdeki mevcut standartlar incelenerek KİSR riski oluşturabilecek limit değerler tanımlanmıştır. Örnek olarak analiz edilen iki farklı işlemde, önerilen kontrol listesi ile detaylı analizler aynı sonucu vermiştir. Böylece özellikle az tekrarlı işlerin en az 5 işgünü sürecek detaylı analizler yerine, önerilen kontrol listesi ile yarım saat içerisinde değerlendirilmesi sağlanmıştır.
Learning curve of students of the Bashkir state medical University in the educational process on endovideosimulators.
Authors: Galimov O. V. , Khanov V. O. , Safargalina A. G. , Kashapova A. R. , Dashdamirova N. R. , Makhortov R. I.
Published: January 2021

The article presents a comparative analysis of the learning curve of 40 students of Bashkir State Medical University on the technique of intracorporeal suture on a box simulator developed at the Department of Surgical diseases and new technologies and the "LapSim" simulator. Students who had different levels of manual skills were divided into two groups: the first - trained on a "box simulator", the second - trained on a "LapSim"simulator. To assess the level of development of practical skills, indicators of time spent on performing manipulation (in minutes) and GOALS (Global Operational Assessment of Laparoscopic Skills) were used. To assess the level of development of practical skills, indicators of time spent on performing manipulation (in minutes) and GOALS scores (Global Operational Assessment of Laparoscopic Skills). During analysis of the results there is a significant reduction of the time of performing manipulation in groups with an increase of the experience of students (in the performance of the second and third attempts). Training on a box simulator subjectively turned out to be easier for students than on a virtual laparoscopy simulator "LapSim".
The experience of the department for the development of simulation technologies in the training of healthcare management personnel
Authors: Naygovzina N. B. , Zimina E. V. , Shamanskiy M. B. , Vasilyeva E. P. , Mayorova O. Y.
Published: January 2021

Department of Public Health and Healthcare of the Federal State Budgetary Educational Institution of Higher Education A.I. Yevdokimov Moscow State University of Medicine and Dentistry of the Ministry of Health of Russia has been training healthcare professionals for more than half a century. In 2008, the department launched a project to modernize the educational environment on a digital platform, including the development of active simulation technologies used in the training of healthcare management personnel. The game simulator «Virtual Medical Organization» has been developed, which has no analogues and is based on domestic legal regulation. The active use of simulation technologies in the pedagogical process of the department is based on the problem-target method and the principle of «learning by doing», when, solving practical problems, listeners come to the right answer on their own relying on the knowledge acquired and competencies formed. Such a teaching strategy promotes the involvement of the maximum number of analyzers and cognitive processes of the learner in the game process, which provides an integrative educational result at the output as a result of interaction. At the moment, there is an increasing need for remote use of simulation technologies in the educational process, which would make it possible to consolidate the acquired knowledge and expand the range of competencies of future leaders of health authorities and organizations. The article presents the experience of using the game simulator in the training and assessment of the competencies of healthcare management personnel and provides assessment for the effectiveness of its use. Based on the analysis of the results of the questionnaire survey of the listeners of the cycles of professional retraining and advanced training, conclusions were drawn about the effectiveness of the application of this educational technology in the system of additional professional education for the training of healthcare management personnel. The results of the study are aimed at replicating the possibility of using the presented simulator in a remote format in the process of training heads of health authorities and organizations.
Reduced Path Successive Cancellation List Decoding for Polar Codes
Authors: Walled Khalid Abdulwahab  , Abdulkareem Abdulrahman Kadhim
Published: January 2021

Polar codes have already been adopted in 5G systems to improve error performance. Successive cancellation list (SCL) decoding is usually used at the decoder and involves lengthy processing. Therefore, different methods have been developed to reduce an SCL decoder’s complexity. In this paper, a reduced path successive cancellation list (RP-SCL) decoder is presented to reduce this complexity, where some decoding paths are pruned. The pruning is achieved by using three different thresholds: two for the path metric and one for the pruning depth in the decoding tree. An optimization procedure is considered to determine the optimum settings for these thresholds. The simulation tests are carried out over models of an additive white Gaussian noise channel and a fading channel by using 5G environments. The results reveal that the proposed RP-SCL decoder provides the complexity reduction in terms of the average number of processed paths at high SNR. Additionally, the computational complexity and the memory requirements decrease.
Los orígenes riojanos del "Rubí" del Príncipe Negro: una relectura iconográfica de los códices de San Millán y Vigilano o Albeldense
Authors: Rubert Vericat Fernando
Published: January 2021

Una de las joyas históricas mejor documentadas del tesoro de la corona británica es el llamado “rubí del Príncipe Negro” que adorna en una posición frontal privilegiada la Corona Imperial del Estado. Recibe este nombre por su primer propietario inglés, Eduardo de Woodstock (1330-1376), más conocido como el Príncipe Negro, y está vinculado con su victoria en la batalla de Nájera el 3 de abril de 1367, hace 650 años. Ante la aceptación reciente de la hipótesis poco fundada que defiende el origen Nazarí de esta enorme espinela, supuestamente arrebatada por Pedro de Castilla al rey Bermejo, este artículo documenta la presencia de esta joya en La Rioja, en fechas tan tempranas como el siglo X. Se aportan tanto las pruebas históricas tradicionales que vinculaban a esta simbólica gema con Santa María la Real de Nájera, como nuevos descubrimientos basados en ilustraciones conocidas pero mal interpretadas de la Maiestas Domini de los códices Albeldense y Emilianense.
Arcos-cortinaje en la arquitectura barroca novohispana
Authors: Fernández Martha
Published: January 2021

Los arcos que podemos mirar en la arquitectura barroca de la Nueva España muchas veces tienen formas tan variadas y ricas que dejan en un observador cuidadoso la impresión de estar mirando cortinas talladas en piedra. Este ensayo es precisamente una invitación a reflexionar acerca de la posibilidad de que la intención de los autores, patronos y propietarios haya sido esa, es decir, representar cortinajes. Las cortinas, los mantos y los doseles tuvieron una gran importancia desde el punto de vista simbólico, pues son representaciones del cielo y, desde el punto de vista formal, cumplen con los principios de movimiento, lujo, riqueza, dramatismo y teatralidad del arte barroco.
Arte y feminismo en el espacio público: de lo perdurable a lo efímero. Algunos ejemplos del siglo XXI en España
Authors: Luque Rodrigo Laura
Published: January 2021

El espacio público ha sido a lo largo de la historia, especialmente contemporánea, el lugar desde el que se han desarrollado las reivindicaciones que han permitido a nuestra sociedad avanzar hacia la democracia y la libertad. Especialmente complejo ha sido para las mujeres apoderarse de este espacio, que no obstante, desde la Revolución Francesa salieron a la calle para reivindicar derechos sociales. Las manifestaciones artísticas no quedaron impasibles ante ello y se han sumado a la lucha, a través del arte urbano, las acciones, el propio urbanismo y la cartelería. En la actualidad, estas acciones se vuelven colectivas gracias al poder de otro espacio público, las redes sociales, permitiendo que el arte feminista se apodere de las calles, no sin dificultades. En el texto trataremos algunos ejemplos de artistas españolas del siglo XXI.
“mirar(nos)otras”: o desenho como ação e dispositivo de arte relacional
Authors: Fernandes Brescancini Natália
Published: January 2021

Este estudo propõe discutir o desenho como ação, o (auto)retrato como dispositivo de arte relacional a partir de uma reflexão sobre as ações realizadas dentro do projeto “mirar(nos) otras”. Trata-se de uma proposta de exposição/intervenção/ação que ocorre em um espaço de encontro feminista na cidade de Madrid em 2019, experimento que forma parte de um projeto de pesquisa de Pós-Doutorado, realizado com apoio da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brasil (CAPES). A partir da apresentação do processo de criação da proposta, seus antecedentes e desdobramentos, discute-se a possibilidade de encontro por meio da experiência estética e do processo de construção de imagens, tratando-se também de uma de investigação dos modos e espaços de resistência e criação de novas subjetividades encontrados por mulheres diversas.