bluuebunny/crossref_metadata_2025 huggingface dataset:
Inner ear decompression sickness after a routine dive and recompression chamber drill: A case report
Authors:   School of Infantry – West, Camp Pendleton, California, U.S., Parsons Dale , Utz Edward ,   Department of Otolaryngology, Naval Medical Center San Diego, San Diego, California, U.S., Kidd Grant ,   Explosive Ordnance Disposal Group ONE, San Diego, California, U.S., Virgilio Gina ,   Naval Special Warfare Group ONE, San Diego, California, U.S.
Published: March 2023

Inner ear decompression sickness (IEDCS) is an uncommon diving-related injury affecting the vestibulocochlear system, with symptoms typically including vertigo, tinnitus and hearing loss, either in isolation or in combination. Classically associated with deep, mixed-gas diving, more recent case series have shown that IEDCS is indeed possible after seemingly innocuous recreational dives, and there has been one previous report of IEDCS following routine hyperbaric chamber operations. The presence of right-to-left shunt (RLS), dehydration and increases in intrathoracic pressure have been identified as risk factors for IEDCS, and previous studies have shown a predominance of vestibular rather than cochlear symptoms, with a preference for lateralization to the right side. Most importantly, rapid identification and initiation of recompression treatment are critical to preventing long-term or permanent inner ear deficits. This case of a U.S. Navy (USN) diver with previously unidentified RLS reemphasizes the potential for IEDCS following uncomplicated diving and recompression chamber operations – only the second reported instance of the latter.
“Tecnorecycling” tecnología y reciclaje dos herramientas fusionadas para aprender inglés e informática
Authors: Sierra Martínez Ana Maria , Guzmán Espitia Diana Marcela , Velásquez Camacho Leida Yamile
Published: March 2023

El presente trabajo de investigación da a conocer cuáles son las causas que generan la ausencia de la enseñanza de las áreas inglés y tecnología e informática en los estudiantes de algunas Instituciones Educativas del sector rural de Pacho Cundinamarca, esta idea de investigación nace al reconocer la influencia de estos dos aspectos en la actualidad y el poco interés que aquí se ha dado. Al conocer la situación presentada con anterioridad se da paso a la creación y desarrollo de una propuesta innovadora para la enseñanza de estas dos áreas mediante la implementación de estrategias pedagógicas que permitan al estudiante interactuar directamente con el inglés y la informática creando así una experiencia de aprendizaje significativo. Pensando en hacer de este un trabajo investigativo de calidad se optó por el enfoque cuantitativo y la investigación acción participativa que fue aplicada a los estudiantes de grado segundo y tercero de la Institución Educativa Departamental Aquileo Parra sede rural La Cabrera; como resultados parciales se ha evidenciado que los estudiantes han tomado conciencia que estas dos áreas al igual que las demás tienen importancia en el desarrollo del estudiante y que no debe ser ni el contexto ni los recursos impedimento para aprenderlas.
Educação não formal: contributos para a educação inclusiva
Authors: Antunes Maria Conceição Pinto , Fernandes Sara Daniela
Published: March 2023

A intervenção aqui descrita resulta de um trabalho de investigação/intervenção com um grupo de 11 crianças/jovens com necessidades educativas em situação de acolhimento residencial, cuja finalidade se centrou no desenvolvimento de competências para a vida, com vista ao desenvolvimento integral. Recorrendo ao paradigma qualitativo interpretativo-hermenêutico, o projeto foi desenvolvido sob os princípios da investigação-ação participativa, utilizando as técnicas ativas e participativas da animação-sociocultural. A intervenção integrou a dinamização de oficinas favorecedoras do processo de educação/aprendizagem dos participantes. Os resultados revelam que a intervenção obteve resultados bastante positivos ao nível do aumento da motivação e interesse pela realização de atividades, da intensificação da interação social e habilidades comunicacionais e da capacidade de aprendizagem, salientando os benefícios da educação não formal na educação/desenvolvimento de crianças e jovens com necessidades educativas.
Reelaboração de foreground: orquestrando futuro com os professores
Authors: Piovesan Juliane Claudia , Bernardi Lucí dos Santos
Published: March 2023

Este artigo estuda o conceito de foreground presente na literatura e reflete sobre a reelaboração de foreground do docente, principalmente os aspectos que os mobilizam a ensinar e a aprender. A análise possui como base o entendimento de que ensinar necessita de aprendizagens constantes, em que o docente se permita interpretar as vivências, as realizações, os desejos, os sonhos, bem como as angústias, as barreiras e as frustrações. O suporte teórico é acompanhado por autores como Biotto Filho (2015); Nóvoa (2016, 2022); Skovsmose (1994, 2006, 2007, 2008, 2014, 2018); Tessaro e Bernardi (2019). Evidencia-se que reelaborar foreground, na observação de fatores internos (dimensão subjetiva) e externos (dimensão social), permite ao ser humano aprender ter desejo, dar sentido e significado à sua vida pessoal e profissional, enfim suas concepções, horizontes e visões de futuro. Perpassando as caracterizações de foreground e colocando-os no contexto vivido da docência, pode-se identificar situações importantes, as quais remetem a reflexões e questionamentos de lugares que possibilitam a esse docente reelaborar seus foregrounds de forma coletiva e, em especial, em um “lugar” chamado formação continuada. Por fim, infere-se que reelaborar foregrounds de docentes envolve refletir a maneira como uma pessoa interpreta as possibilidades e perspectivas presentes em seu contexto, compreendendo os desejos para o futuro, com objetividade, sendo fundamentais para suas ações e atitudes.
Pedagogias criticas: o desafio da formação de subjetividades rebeldes
Authors: Rigal Luis , Zinger Sabrina , Patagua Patricia Evangelina
Published: March 2023

Apresentamos um conjunto de reflexões derivadas da proposta político-pedagógica que desenvolvemos em nossas práticas de ensino, extensão e pesquisa, vinculadas à tradição da educação popular e da pesquisa participante, dos componentes de Educação Não Formal e Sociologia da Educação da Universidade Nacional de Jujuy e de otros espaços de formação junto aos movimentos populares urbanos e camponeses. As reflexões enfatizam a formação de subjetividades rebeldes em espaços educativos coletivos, realça as demandas que a teoría social crítica faz às pedagogias críticas. O estudo da subjetividade em sua condição de rebelde, tem possibilitado analizar aspectos vinculados a vontade coletiva, a organização, a utopia e a participação social. Além disso, sua localização, no contexto sócio-histórico, permite discutir sua configuração e mediação na estructura social, colocando em discussão a produção de sentidos no neoliberalismo e na pós-modernidade.
O pensamento de José Carlos Mariátegui (1895-1930) e as lutas indígenas no Brasil contemporâneo
Authors: Medeiros Tanise Baptista de , Menezes Magali Mendes de
Published: March 2023

Este trabalho é fruto de pesquisa a nível de Doutorado em Educação que tem como objetivo traçar diálogos possíveis entre o pensamento de José Carlos Mariátegui (1895-1930), intelectual peruano, e as lutas indígenas no Brasil contemporâneo, a fim de contribuir para a elaboração de um projeto histórico e de um pensamento latino-americano descolonizador e anticapitalista, a partir da realidade onde nossos pés pisam. Diante do contexto de genocídio e epistemicídio dos povos indígenas no Brasil, buscamos apresentar as resistências indígenas em defesa de seus territórios como movimentos políticos e pedagógicos, contra-hegemônicos à violência capitalista-colonial, afirmando, ainda, com Mariátegui, que a esperança indígena é profundamente revolucionária.
Arte e estética decolonial: um diálogo a partir da colonialidade do ver
Authors: Peloso Franciele Clara , Mota Neto João Colares da , Machado Érico Ribas
Published: March 2023

As perspectivas decoloniais buscam questionar e transformar o padrão cultural eurocêntrico imposto aos países do sul global, da América Latina, África e Ásia pelos movimentos de invasão, conquista e colonização. O campo das artes, da estética e suas variadas formas de expressão passa, também, por essa discussão. Assim, esse ensaio teórico tem por objetivo destacar o conceito de colonialidade do ver e, a partir dele, refletir sobre a representação nas/das artes visuais dos povos indígenas da Amazônia, bem como apresentar algumas obras da artista visual amazonense Duhigó Tukano em diálogo com o conceito de estética da re-existência. Afirmamos o papel fundamental da arte, como estética da re-existência, quando coloca no cenário da vida narrativas e cosmopercepções outras, possibilitando uma decolonialidade do ser que se abra num diálogo interepistêmico e intercultural crítico.
Intersubjetividade-comunitária e educação libertadora: a conscientização na comunidade crítico-simétrica
Authors: Anjos José Edemilson Pereira dos , Santos Luciano Costa
Published: March 2023

O presente artigo trata do desenvolvimento ético-crítico dos novos sujeitos sócio-históricos em relação com o exercício da racionalidade discursiva crítica. Constitui, em sua origem, parte da Tese de doutoramento em Educação e Contemporaneidade, um estudo de natureza teórica, com abordagem qualitativa e procedimento bibliográfico, desenvolvido a partir da perspectiva hermenêutica da pedagógica transmoderna de Enrique Dussel. Assim, com relação ao seu aspecto parcial (em relação à totalidade da pesquisa da qual procede), toma a ética dusseliana e a pedagogia freiriana como referencial teórico, a partir do qual busca, no paradigma freiriano da educação libertadora, um referencial práxico para o desenvolvimento racional ético-crítico, como experiência intersubjetivo-comunitária dos sujeitos-éticos negados como oprimidos/vítimas. Neste intuito, opera com os conceitos-chave de “processo ético-crítico” e “conscientização”; “racionalidade discursiva crítica” e “dialogicidade”; “intersubjetividade comunitária”; e “comunidade crítico-simétrica”.
Mode-I Analysis of GFRP Laminates Toughened by Interleaved PA66 Nanofibers and Chopped Carbon Using Acoustic Emission
Authors: Salimi-Mofrad­ Hadi , Ranji Ahmad Rahbar , Saghafi Hamed
Published: March 2023

Epoxies have a weak fracture toughness; hence it is essential to enhance
this property. This study revealed that interleaving 110-micron
thickness of chopped carbon fibers and Poly-amide 66 nano-mats in Glass
Fiber Reinforced Plastic laminates increased mode-I fracture toughness
by 35% and 112%, respectively. Acoustic emission data illustrated that
damage mechanisms initiate at further load-point displacement in
modified samples. By classifying different failure types using a
hierarchical clustering model, it was observed that the dominant damage
mechanisms in reference, chopped carbon and nanomodified samples are
matrix cracking, fiber breakage, and matrix cracking in order. Moreover,
nanomodified samples’ cumulative released energy was 83% less than the
reference and chopped carbon. Different damage mechanisms were validated
by scanning electron microscope observations.
Identification of a novel totivirus from Culex tritaeniorhynchus in China
Authors: Li Yanhan , Guo Xiaofang , Li Jianfang , Hu Ningzhu , Sun Jing , Wu Meini , Zhou Hongning , Hu Yunzhang
Published: March 2023

Until the isolation of IMNV from penaeid shrimps, the first Totiviridae
member to be isolated from an arthopod, no Totiviridae member had been
isolated from an arthopod, and more toti-like virus was discovered from
arthopod. In this paper, we effectively isolated a novel totivirus-like
particle from Culex tritaeniorhynchus designated NODE2. Sequence and
phylogenetic analysis shows that the NODE2 has the similar genome
organization just as some other members of Totiviridae family, and it
may represent an entirely novel genus within the Totiviridae family.
Basophil responses in susceptible AKR mice upon infection with the intestinal helminth parasite Trichuris muris
Authors: Wojno Elia D. Tait , Smita Shuchi , Webb Lauren , Mooney Bridget , Früh Simon P. , Oyesola Oyebola , Matheson Macy K. , Peng Seth A.
Published: March 2023

Intestinal helminth infection promotes a Type 2 inflammatory response in
resistant C57BL/6 mice that is essential for worm clearance. The study
of inbred mouse strains has revealed factors that are critical for
parasite resistance and delineated the role of Type 1 versus Type 2
immune responses in worm clearance. In C57BL/6 mice, basophils are key
innate immune cells that promote Type 2 inflammation and are programmed
via the Notch signaling pathway during infection with the helminth
Trichuris muris. However, how the host genetic background
influences basophil responses and basophil expression of Notch receptors
remains unclear. Here we use genetically susceptible inbred AKR/J mice
that have a Type 1-skewed immune response during T. muris
infection to investigate basophil responses in a susceptible host.
Basophil population expansion occurred in AKR/J mice even in the absence
of fulminant Type 2 inflammation during T. muris infection.
However, basophils in AKR/J mice did not robustly upregulate expression
of the Notch2 receptor in response to infection as in C57BL/6 mice.
Blockade of the Type 1 cytokine IFN-γ in infected AKR/J mice was not
sufficient to elicit infection-induced basophil expression of the Notch2
receptor. These data suggest that the host genetic background, outside
of the Type 1 skew, is important in regulating basophil responses during
T. muris infection in susceptible AKR/J mice.
Comparisons are Odious? The Neural Mechanism of Intergroup and Intragroup Social Comparison among Game Players : An fMRI Study
Authors: Fang Zijie , Wen Hongwei , Gao Xuemei
Published: March 2023

Social comparison is an important way for individuals to define their
social characteristics, and online games with a large number of social
information provide a convenient platform for social comparison between
players. At the same time, the spontaneous self-classification brought
by social information makes the social comparison process among players
potentially affected by group identity. This study explored the neural
mechanism of intergroup and intragroup social comparison among players
through fMRI and point estimation paradigm. 26 subjects participated in
our experiment, and 25 of their head movement amplitudes were less than
2.5mm and were included in the statistics. We found that the downward
comparison led to significantly different brain activation compared with
the upward comparison. The fusiform gyrus, putamen, lentiform nucleus,
precuneus and precentral gyrus were significantly activated when the
group identity of the comparison object was the same as that of the
player. When the two have different identities, downward comparison
significantly activated the angular gyrus, middle frontal gyrus and
superior frontal gyrus. Our research has proved that group identity has
a moderating effect on social comparison cognitive process among
players. When the object of downward comparison is an out-of-group
member, the player will receive the reward information and positive
emotional valence, which can positively predict their continuous game
behavior in theory. This study provides a new possibility for the cause
of game addiction at the perspective of neural mechanism.
Permeability and elastic properties of rocks from the northern Hikurangi margin: Implications for slow-slip events
Authors: Tisato Nicola , Bland Carolyn , Avendonk Harm Van , Bangs Nathan , Alamoudi Omar , Olsen Kelly , Gase Andrew
Published: March 2023

Fluid flow and pore-pressure cycling are often invoked as controls to
slow slip events (SSEs), such as those that frequently occur at the
northern Hikurangi margin (HM) of New Zealand. To better understand
fluid flow in the forearc system, we examined the relationship between
elastic properties, compaction, porosity, and permeability of Cretaceous
to Pliocene mudstones from the Raukumara peninsula. We found that the
permeability of the deep wedge is too low to drain fluids, but
fracturing increases permeability by orders of magnitude, making
fracturing key for fluid flow. In weeks to months, plastic deformation
and clay swelling heal the fractures restoring the initial permeability.
We conclude that overpressures at the northern HM might partly dissipate
during SSEs due to enhanced permeability near faults. However, in the
weeks to months following an SSE, healing in the prism will lower
permeability, forcing pore pressure to rise and a new SSE to occur.

PAPER SUBMITTED TO GEOPHYSICAL RESEARCH LETTERS - AGU
Alpine ductile deformation of the upper Iberian collided margin (Eaux-Chaudes massif, west-central Pyrenean hinterland, France)
Authors: Caldera Norbert , Teixell Antonio , Griera Albert , Labaume Pierre , Guardia Marc
Published: March 2023

The Eaux-Chaudes massif provides keys to unravel the deep-seated
deformation of the Iberian rifted margin during the Alpine orogeny in
the Pyrenees. The massif conforms to an inlier of upper Cretaceous
carbonate rocks within the Paleozoic basement of the western Axial Zone,
originally deposited in the upper margin shelf before the Cenozoic
collision. New geological mapping and cross-section construction lead to
the description of the lateral structural variation from a km-scale fold
nappe in the west to a ductile, imbricate fold-thrust fan in the east.
The transition from a Variscan pluton to Devonian metasediments
underlying the autochthonous Cretaceous induced this structural change.
Recumbent folding, which involved upper Paleozoic rocks, was facilitated
by a lower detachment in Silurian slates and an upper detachment in an
overlying Keuper shale and evaporite thrust sheet. Remains of this
allochthonous sheet form shale and ophite bodies pinched within the
upper Cretaceous carbonates, conforming unusual tertiary welds. Ductile
shear in the overturned limb of the Eaux-Chaudes fold nappe imparted
strong mylonitic foliation in carbonate rocks, often accompanied by N-S
stretching lineation and top-to-the-south kinematic indicators. The
burial of the massif by basement-involved thrust sheets and the Keuper
sheet, along with their Mesozoic-Cenozoic cover, account for ductile
deformation conditions and a structural style not reported hitherto for
the Alpine Pyrenees. Two hypotheses for the tectonic restoration of this
part of the Pyrenean hinterland are proposed in this work.
Observation-based trends and drivers of global surface ocean acidification over the past four decades
Authors: Ma Danling , Gregor Luke , Gruber Nicolas
Published: March 2023

The oceans are acidifying in response to the oceanic uptake of
anthropogenic CO2 from the atmosphere, yet the global-scale progression
of this acidification has been poorly documented so far by observations.
Here, we fill this gap and use an observation-based product,
OceanSODA-ETHZ, to determine the trends and drivers of the surface ocean
aragonite saturation state (Ωar) and pH over the last four decades
(1982-2021). In the global mean, Ωar and pH declined at rates of -0.071
± 0.001 decade-1 and -0.0170 ± 0.0001 decade-1, respectively. These
trends are driven primarily by the increase in the surface ocean
concentration of dissolved inorganic carbon (DIC) in response to the
uptake of anthropogenic CO2 but moderated by changes in natural DIC.
Surface warming enhances the decrease in pH, accounting for ∼15% of the
global trend. Substantial ENSO-driven interannual variability is
superimposed on these trends, with Ωar showing greater variability than
pH.
Global and regional climate feedbacks in response to uniform warming and cooling
Authors: Ringer Mark Adam , Bodas-Salcedo Alejandro , Webb Mark J
Published: March 2023

We compare the radiative feedbacks resulting from a uniform warming and
cooling of sea surface temperatures by 4 K in an ensemble of global
climate models. The global-mean net feedback is less stabilising in
response to warming in all nine models. This is primarily due to a
stronger tropical water vapour feedback, with a smaller contribution
from the shortwave cloud feedback. The zonal-mean feedbacks are
similarly robust across the ensemble. In the extra-tropics, more
positive shortwave cloud feedback under warming is associated with
further poleward migration of the mean Southern Hemisphere jet latitude
in some models. However, additional experiments with an aquaplanet
version of the HadGEM3 model suggest that the asymmetry of the jet shift
is not driving that in the cloud feedbacks at these latitudes. In the
tropics, stronger water vapour feedback under warming is offset by a
weaker shortwave cloud feedback. The result is that the ensemble spread
in the differences between the global feedbacks under warming and
cooling is mainly determined by their differences in the tropics. The
spatial distribution of the feedbacks largely reflects the zonal mean
behaviour, although there is considerable intermodel variation in the
regional cloud feedbacks, particularly in the tropical shortwave cloud
feedback. Comparison with CO2- and solar-forced coupled experiments
suggests that the global-mean longwave cloud feedback is nearly
invariant to warming and cooling, regardless of the nature of the
forcing. The shortwave cloud feedback is generally more positive under
warming in the coupled models, consistent with the uniform SST
perturbation experiments.
A hidden benefit in the COVID-19 pandemic: Rethinking physical geography pedagogy in higher education using a flipped classroom approach
Authors: Taylor Karen Jan
Published: March 2023

A shift in geographical pedagogy has occurred in the last decade with greater integration of active and blended (hybrid) learning techniques in higher education. A ‘flipped classroom’ approach employs an active classroom and inclusion of pre/post asynchronous course content in replacement of a traditional lecture-based format. This pedagogical research paper investigates the effectiveness of an online flipped classroom approach in the field of physical geography through student evaluation and reflects upon the enforced transition to online learning during the COVID-19 pandemic. An anonymous survey was distributed to final year physical geography students who experienced both on-campus and online education, to evaluate perceived technological skills, broadband access and module delivery preference. Positive qualitative and quantitative results (66 respondents) showed an appreciation for an active classroom, increased student-staff engagement and the use of multimedia resources (i.e. using more than one medium of communication). Sixty-nine per cent of students in this cohort preferred the online flipped classroom to other online lecture-based formats (synchronous or asynchronous). Additionally, 59% of students chose an on-campus flipped classroom approach in replacement of a traditional transmissive lecture or option to remain online in a post-COVID-19 scenario. Overall, this case study provided valuable insight into student experiences of online learning and illuminates a potential pathway to move away from traditional lecture-based methods in undergraduate physical geography. The dynamic, interactive learning environment created by this alternative approach is recommended to enhance learning, accessibility and improve student-staff interaction, particularly for large class sizes where fieldwork may not be feasible.
Phytochemical analysis and antibacterial activities of Avicennia marina (Forssk.) Vierh. extracts against Vancomycin-resistant Enterococcus faecium
Authors:   Department of Biological Sciences, Faculty of Science, King Abdulaziz University, 21589 Jeddah, Saudi Arabia, Alsaadi Waleed A. , Bamagoos Atif A. ,   Department of Biological Sciences, Faculty of Science, King Abdulaziz University, 21589 Jeddah, Saudi Arabia, Hakeem Khalid R. ,   Department of Biological Sciences, Faculty of Science, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
Published: March 2023

Finding naturally occurring antimicrobial compounds with little danger to human health is essential since microorganisms are growing more and more resistant to antibiotics. This work evaluated ethanolic extracts of Avicennia marina (A.marina) leaves, roots, and fruits for their antibacterial efficacy against Vancomycin-Resistant Enterococcus faecium (VREF). The ethanolic extraction method was used to obtain the plant extracts. On VREF, the agar well diffusion method was utilized to test the extracts' antibacterial efficacy. On the other hand, the agar disk diffusion method was employed to examine the antibacterial effectiveness of antibiotics. For A.marina extracts, the inhibitory zone in the leaf was approximately 14.5 mm, whereas the leaf extract (Conc. 50%) had a less significant effect (10.5 mm). According to a phytochemical study, flavonoids, phenolics, triterpenes, and glycosides were found in A. marina leaf, fruit, and root extracts. Using liquid chromatography ion trap mass spectrometry (LC-IT-MS), A.marina was discovered to be a potential source of bioactive compounds with high medicinal value.
Sequences of nonlinear quasi contractions and fixed points
Authors: Chi Kieu , Karapinar Erdal , Thanh Tran
Published: March 2023

In this paper, we state some results on the relationship between the
convergence of the nonlinear quasi-contractions and the convergence of their
fixed point. The observed results certainly extend some existing results on
the topic in the literature, including the results of Nadler and Park. We
also furnish an illustrative example to demonstrate the validity of the
results expressed.
From fuzzy scalar Henstock to fuzzy scalar McShane integrability
Authors: Sayyad Redouane , El Ouahbi
Published: March 2023

We introduce the notion of the scalar fuzzy McShane and Henstock integrals
for fuzzy number valued functions and we discuss their relationship and we
give a fuzzy scalar version of a Gordon theorem [24].
On a class of Toeplitz and little Hankel operators on L2a (U+)
Authors: Das Namita , Das Sworup
Published: March 2023

In this paper we establish certain algebraic properties of Toeplitz
operators and a class of little Hankel operators defined on the Bergman
space of the upper half plane. We show that if K is a compact operator on
L2a (U+),M(s) = i?s/i+s , ?a(s) = (c?1)+sd/(1+c)s?d where a = c + id ? D, s
? U+ and J f(s) = f (?s) then lim |a|?1? ||K ? TJ(M??a)KT+ M??a || = 0 and
for ?,? ? h?(D), if ??s(??M)T??M ? T??M??s(??M) is compact, then lim w=x+iy
y?0 ||c([??s(??M)dw] ? [?* ??Mdw]) + c([?J(??M)dw] ? [?* ?s(??M)dw])|| = 0,
where dw(s) = 1/?? w+i/w?i (?2i)Imw/(s+w)2 ,w ? U+, ?? is the little
Hankel operator on L2a (U+) with symbol ? and ?s is a function defined onU+
with |?s| = 1, for all s ? U+. Applications of these results are also
obtained.
Inequalities involving Casorati curvatures for submanifolds of real space forms with a quarter-symmetric connection
Authors: Lone Mehraj
Published: March 2023

In this paper, we obtain some inequalities based on Casorati curvature for
submanifolds in a real space form with a special kind of quarter-symmetric
connection.
Optimal control for non-cooperative systems involving fractional Laplace operator
Authors: Serag H.M. , Hyder Abd-Allah , El-Badawy M.
Published: March 2023

This study investigates the optimal control problem associated with n ? n
non-cooperative systems, including the fractional Laplace operator. The
non-local issue is recast as a local problem. As a consequence, in these
systems, the existence and uniqueness of the weak solution are established.
A system?s existence and optimal control conditions are also established.
Generalized finite difference method for solving two-interval Sturm-Liouville problems with jump conditions
Authors: Çavuşoğlu Semih , Mukhtarov Oktay
Published: March 2023

We consider a Sturm-Liouville problem defined on two disjoint intervals
together with additional jump conditions across the common endpoint of these
intervals. Based on Finite Difference Method (FDM) we have developed a new
tecnique for solving such type nonstandard boundary value problems (BVP). To
show applicability and effectiveness of the proposed generalization of FDM,
we solved a simple but illustrative example. The obtained numerical
solutions are graphically compared with the corresponding exact solutions.
Operator roots of polynomials: Iso-symmetric operators
Authors: Duggal B.P. , Kim I.H.
Published: March 2023

Given Hilbert space operators Ai, Bi, i = 1, 2, and X such that A1 commutes
with A2 and B1 commutes with B2, and integers m, n ? 1, we say that the
pairs of operators (B1,A1) and (B2,A2) are left-(X, (m, n))-symmetric,
denoted ((B1,A1), (B2,A2)) ? left ? (X, (m, n)) ? symmetric, if ?m j=0 ?n
k=0 (?1)j+k (mj)(nk) Bm?j 1 Bn?k 2 XAn?k 2 Aj 1 = 0. An important class
of left-(X, (m, n))?symmetric operators is obtained upon choosing B1 = B2 =
A* 1 = A* 2 = A+ and X = I: such operators have been called (m,
n)?isosymmetric, and a study of the spectral picture and maximal invariant
subspaces of (m, n)?isosymmetric operators has been carried out by Stankus
[23]. Using what are essentially algebraic arguments involving elementary
operators, we prove results on stability under perturbations by commuting
nilpotents and products of commuting left-(X, (m, n))?symmetric operators.
It is seen that (X, (m, n))?isosymmetric Drazin invertible operators A have
a particularly interesting structure.
New inertial-based spectral projection method for solving system of nonlinear equations with convex constraints
Authors: Awwal Aliyu , Kumam Poom , Waziri Mohammed , Wang Lin , Bappah Ahmadu , Ishaku Adamu
Published: March 2023

In this paper, a new spectral projection method for solving nonlinear system of equations with convex constraints is proposed based on inertial effect. The inertial technique is integrated into the new proposed search direction with the aim of enhancing the numerical performance. Interestingly, the convergence result of the new method is established based on the assumption that the underlying function is pseudomonotone. This assumption is weaker than monotonicity which is used in many existing methods to prove the convergence. The new method is suitable for large scale problems as well as nonsmooth problems. Numerical experiments presented validate the efficiency of the new method which also outperforms some existing methods in the literature
SEP matrices and solution of matrix equations
Authors: Nie Wenqing , Wei Junchao
Published: March 2023

This paper mainly introduces some properties of several generalized inverses
of matrices, especially some equivalent characteristics of generalized
inverses of matrices, specifically by constructing some specific matrix
equations and discussing whether these matrix equations have solutions in a
given set to determine whether a group invertible matrix is some generalized
inverse of matrices.
A new high-order accurate difference scheme for the Benjamin-Bona-Mahoney-Burgers (BBMB) equation
Authors: Bayarassou Khedidja , Omrani Khaled
Published: March 2023

In this article, a high-order linearized difference scheme is presented for
the periodic initial value problem of the Benjamin-Bona-Mahoney-Burgers
(BBMB) equation. It is proved that the proposed scheme is uniquely solvable
and unconditionally convergent, with convergence order of O(h4 + k2) in the
L?-norm. An application on the regularised long wave is thoroughly studied
numerically. Furthermore, interaction of solitary waves with different
amplitudes is shown. The three invariants of the motion are evaluated to
determine the conservation properties of the system. Numerical experiments
including the comparisons with other numerical methods are reported to
demonstrate the accuracy and efficiency of our difference scheme and to
confirm the theoretical analysis.
How Does High Uncertainty in Accounting Estimates Impact Auditor Litigation Risk? Opposite Effects in Jury Trials and Attorneys’ Out-of-Court Settlements
Authors: Fingland Sean G. , Pickerd Jeffrey S. , Piercey M. David
Published: March 2023

Research suggests that the amount of inherent uncertainty in contemporary accounting estimates has increased in recent years, potentially increasing audit litigation risk. We review a recent study that finds that high estimate uncertainty impacts auditor litigation risk in opposite directions, depending on whether the litigation is decided in a jury trial or settled by attorneys out of court. Mock jurors and attorneys specialized in corporate and securities law read the same case about an alleged undetected material misstatement, with jurors judging auditor negligence and attorneys planning proposed out-of-court settlement negotiations on behalf of auditors. Results show that, under common conditions, mock jurors found auditors less negligent when estimate uncertainty was high. However, attorneys predicted the mock jurors to find auditors more negligent when estimate uncertainty was high, leading them to concede more on behalf of auditors in their proposed settlements.
The Chd4 helicase regulates chromatin accessibility and gene expression critical for β-cell function in vivo
Authors: Davidson Rebecca K. , Kanojia Sukrati , Wu Wenting , Kono Tatsuyoshi , Xu Jerry , Osmulski Meredith , Bone Robert N. , Casey Nolan , Evans-Molina Carmella , Sims Emily K. , Spaeth Jason M.
Published: March 2023

  

The transcriptional activity of Pdx1 is modulated by a diverse array of coregulatory factors that govern chromatin accessibility, histone modifications, and nucleosome distribution. We previously identified the Chd4 subunit of the Nucleosome Remodeling and Deacetylase complex as a Pdx1-interacting factor. To identify how loss of Chd4 impacts glucose homeostasis and gene expression programs in β-cells in vivo, we generated an inducible-β-cell-specific Chd4 knockout mouse model. Removal of Chd4 from mature islet β-cells rendered mutant animals glucose intolerant, in part due to defects in insulin secretion. We observed an increased ratio of immature:mature insulin granules in Chd4-deficient β-cells that correlated with elevated levels of proinsulin both within isolated islets and from plasma following glucose stimulation in vivo. RNA- and ATAC-Sequencing showed that lineage-labeled Chd4-deficient β-cells have alterations in chromatin accessibility and altered expression of genes critical for β-cell function, including MafA, Slc2a2, Chga, and Chgb. Knockdown of CHD4 from a human β-cell line revealed similar defects in insulin secretion and alterations in several β-cell-enriched gene targets. These results illustrate how critical Chd4 activities are in controlling genes essential for maintaining β-cell function.
Impact of polymorphism in the β2-receptor gene on the metabolic response to epinephrine after repeated hypoglycemia
Authors: Rokamp Kim Z. , Dela Flemming , Secher Niels H. , Grønlykke Lars , Thorsteinsson Birger , Pedersen-Bjergaard Ulrik
Published: March 2023

  

The β2-receptor mediates the metabolic response to epinephrine. This study investigates the impact of the β2-receptor gene (ADRB2) polymorphism Gly16Arg on the metabolic response to epinephrine before and after repetitive hypoglycemia.

Twenty-five healthy male subjects selected according to ADRB2 genotype being homozygous for either Gly16 (GG; n=12) or Arg16 (AA; n=13) participated in 4 trial days (D1-4), D1pre and D4post with epinephrine 0.06 ug kg-1 min-1  infusion, and D2hypo1-2 and D3hypo3 with three periods of hypoglycemia by an insulin-glucose clamp.

At D1pre the insulin (44 ± 8 vs. 93 ± 13 pmol l-1 h; P = 0.0051) and glycerol (79 ± 12 vs. 115 ± 14 μmol l-1 h; P = 0.041) and free fatty acids (FFA) (724 ± 96 vs. 1113 ± 140 μmol l-1 h; P = 0.033) responses (mean ± SEM of area under the curve) to epinephrine were decreased in AA subjects compared to GG subjects but without difference in glucose response. There were no difference in response to epinephrine between genotype groups after repetitive hypoglycemia at D4post.

The metabolic substrate response to epinephrine is decreased in AA subjects compared to GG subjects, but without difference between genotype groups after repetitive hypoglycemia.
An ultrastructural study of mast granule formation in embryonic skin
Authors: Fujita H. , Asagami C. , Suetomi Y. , Araki I. , Kinoshita K.
Published: March 2023

No abstract available
Trichomonas vaginalis infection and rectal gonorrhoea in women
Authors: Odegaard K.
Published: March 2023

No abstract available
The Nordic Interactive and Comparative Spaces Within the Arena of Education
Authors: Jónasson Jón Torfi , Bjarnadóttir Valgerður S.
Published: March 2023

The paper proposes three educational spaces, an operational space, an interactive space and a comparative space. The focus is on the interactive space in order to shed light on various modes of Nordic educational cooperation, with a brief discussion on the rather unique Nordic comparative space. Based on different data and sources, the paper proposes that within the interactive space, practical, scientific, administrative and policy sub-spaces connect across the Nordic countries. The interactive space is seen as socially constructed, multidimensional, and centring on communication.
The Nordic Dimension in Education – Between Myth and Reality
Authors: Krejsler John Benedicto
Published: March 2023

The article is an introduction to the special double issue of Nordic Studies in Education poses and elaborates upon the question of whether there is such a thing as a Nordic dimension in education. And, if so, what then are the defining similarities and differences in educational terms between the five small countries Denmark, Finland, Iceland, Norway and Sweden? This special issue follows up on the 2nd Annual Nordic Educational Conversation held on 23 September 2021, where the Nordic Educational Research Association invited participants to a discussion on the theme of the Nordic dimension in education and whether it is a myth or a living reality.
Acceso a tecnologías en el rendimiento universitario en tiempos del covid-19: análisis de asociación por clústeres
Authors: Jiménez García Martha , Gómez Miranda Pilar , Romero García José Antonio
Published: March 2023

Ante los conflictos generados por el covid-19 en el ámbito educativo, las instituciones de educación superior se vieron en la necesidad de trasladar sus actividades al plano virtual, lo que modificó significativamente las formas de enseñanza y aprendizaje, y provocó nuevos retos y desafíos para el rendimiento académico de los estudiantes. En este contexto, el objetivo de la presente investigación fue analizar la asociación entre el rendimiento académico y el número de días de inactividad por covid-19. Para tal fin, se utilizó una metodología cuantitativa descriptiva de análisis no supervisado en una universidad pública de la Ciudad de México.

Entre los resultados obtenidos, se encontró que en su mayoría el promedio de calificaciones de los estudiantes fue de 7.9 y 8.5, con una media de 8.2. Asimismo, se decidió dividir a los alumnos en tres grupos (clústeres) según su rendimiento académico, y se encontró una asociación entre el rendimiento y el uso de las tecnologías de información (TI). En conclusión, se determinó que el uso de las TI está asociado con un mayor rendimiento académico de los estudiantes universitarios, a pesar de estudiar en un entorno afectado por la pandemia de covid-19. Por lo tanto, se considera importante garantizar el acceso de todos los estudiantes a estas herramientas mediante una buena conectividad a internet.
Psychological Impact on Mankweng Hospital Employees on Displaying the Names of Award Winners in the Hospital Corridor Wall and Its Effect on Enhancing Motivation and Performance
Authors: Bhuiyan Mirza Mohamod Zahir Uddin , Mlambo Ruth Sipho
Published: March 2023

Background: The concept of giving out accolades and rewards has been there for centuries. When an individual is recognized for their good deed, they feel delighted. This inspires them to keep getting better and binds them to greater goals. First Annual award ceremony of the Mankweng Tertiary and Academic Hospital was held in March 2022. The hospital’s management recognized outstanding employees from all the different sections. After the ceremony, the hospital’s management displayed those award winners’ names on the wall of the main corridor of the hospital and this was done in order to enhance further motivation, engagement & encouragement. The main objective of the study to find out the employee’s perception on the displaying reward winner names in the wall of the Mankweng Hospital corridor and whether there is any enhancement of the employees' motivation.

Material & Method: The questionnaires were distributed to the different units for all categories of workers in Mankweng Hospital. The questionnaires form comprises of 5 sections: Section A, B, C, D & E. The study was cross-sectional that applied one-way analysis of variance to assess participant’s responses, feeling and research is explanatory in nature.

Result: Total 222 participants. Out of that 140 (63%) participants have positive feeling about the display the award winner name in the wall & 132 (59.5%) have participants are motivated with this display and in future 54% participants prefer combination of Supervisor & Peer colleague’s assessment for reward selection.

Conclusion: From this study we can conclude that displaying of award winner name in the public place enhance motivation of employee. Majority of participants agreed with the combination of Supervisors and colleagues involvement for future assessment method.
PROBLEMS OF LEARNING BIOLOGY ONLINE IN HIGH SCHOOLS
Authors: Khairo Nadiatul , Rahmi Yosi Laila
Published: March 2023

Online learning during the Covid-19 pandemic is an educational innovation that involves elements of information technology in learning. This online learning is one of the unavoidable efforts for educational institutions so that the learning process continues during the Covid-19 pandemic in order to maintain health and prevent the spread of the virus by continuing to study from home. This study aims to describe the biology learning of students through online learning. This research is a qualitative descriptive study. The population of this study were all students of class X science. The research sample amounted to 162 students consisting of 6 classes. The sampling technique is a total sampling technique. This research is a qualitative descriptive study. Where after the data that has been obtained collected is classified according to a predetermined formula, which is described in words or sentences according to predetermined categories to obtain a conclusion. The results of this study indicate that there is an online biology lesson for students. Biology learning through online learning for students shows the highest score of all students using 100% Handphone devices and the lowest score of 0%.
Application of Random Forest for The Classification Diabetes Mellitus Disease in RSUP Dr. M. Jamil Padang
Authors: ANISHA FAZHIRA , Dodi Vionanda  , Nonong amalita  , Zilrahmi
Published: March 2023

Diabetes Mellitus is a disease in which blood sugar levels go beyond normal (GDS>200 mg/dl). Diabetes Mellitus may be defined as an insulin function disorder in the pancreatic organ. Diabetes Mellitus is a world health problem as incidents of this disease are increasing in every part of the world, including Indonesia. Prevention and control of the disease need to be made so as not to cause complications in other organs even to death. Because of this, one needs to study a method to predict the occurance of this disease and to knows the variable that most affect a person suffered from it. This could be accomplished by using a classification methods. One of classification methods is Random Forest. In this case study using randomForest packages in RStudio software. In general, the result of this study are the smallest OOB’s error rates (%) and Variable Importance Measure (VIM) using Mean Decrease Accuracy (MDA) and Mean Decrease Gini (MDG) values.The classification by a Random Forest methods on the incidence of Diabetes Mellitus in RSUP Dr. M. Jamil Padang results in OOB’s error rate was 1,2% or accuracy rates was 98,8%. The most optimal model produced using mtry = 4 and ntree = 1000. If used MDA, the variables that most affect are Age, Polyphagia, Polyuria, HB, and BMI. While if used MDG, the variables that most affect are Age, Polyphagia, BMI, HB, and Delayed Healing.
Russian Randomized Trial to Select Optimal Antibiotic Prophylaxis in Radical Cystectomy: Initial Results of MACS-TRIAL (NCT05392634)
Authors: Nosov A. K. , Berkut M. V. , Mamizhev E. M. , Galunova T. Yu. , Rumyantseva D. I. , Semeyko D. P. , Reva S. A. , Konyashkina S. Yu.
Published: March 2023

Introduction. The key treatment for high-risk non-invasive bladder tumor or invasive urothelial cancer remains radical cystectomy (RCE), which provides the best survival rates. At the same time, the incidence of infectious complications in a number of studies reaches 33%, which in most cases causes repeated hospitalizations and disrupts the Enhanced Recovery After Surgery (ERAS) guidelines. Therefore, research into effective alternations of antibiotic prophylaxis remains relevant.

Materials and methods. The MACS trial is a Russian Phase 3 study with a prospective randomized set of participants to assess the incidence of infectious complications after RCE in the context of the ERAS guidelines (intermediate data snapshot after including 39% of the data). Detailed inclusion and exclusion criteria are published on ClinicalTrials. gov, ID – NCT05392634. The study has been approved by the Local Ethics Committee, No. 1/129 of April 28, 2022. Statistical data processing was performed with StatPlus:Mac LE.

Results and discussion. 36 patients were included in the study (39% of the expected sample). For the period from May 30, 2022 to February 01, 2023. A heterotopic Bricker reservoir was formed intracorporeally in 83.3% of cases (30/36), an orthotopic J-pouch reservoir was created in 13.8% of cases (5/36) and in 2.9% of cases (1/36) the urodereating stage was completed with ureteral clipping. No significant differences were revealed in urine bacterial contamination before surgery. However, in group A, the incidence of positive bacterial cultures, when the ureteric intubators were removed, was 2-fold higher than in the prolonged antibiotic therapy group: 7/14 cases (50.0%) and 3/12 cases (25.0%), respectively. In group B, the risk of complications in the prolonged antibiotic therapy group reduced by 47% within 30 days after RCE (HR 0.53 (95CI %: 0.21-1.32).

Conclusion. An intermediate data snapshot in MACS study revealed that RCE was associated with a high risk of early postoperative infectious complications. The prognostic significance of systemic inflammation indices as predictors of infectious complications subject to further evaluation in the remaining 61% of cases.