bluuebunny/crossref_metadata_2025 huggingface dataset:
Injectivity of non-singular planar maps with disconnecting curves in the eigenvalues space
Authors: Sabatini Marco
Published: September 2023

Fessler and Gutierrez \cite{Fe}, \cite{Gu} proved that if a non-singular planar
map has Jacobian matrix without eigenvalues in $(0,+\infty)$, then it is injective.
We prove that the same holds replacing $(0,+\infty)$ with any unbounded curve
disconnecting the upper (lower) complex half-plane. Additionally we prove that
a Jacobian map $(P,Q)$ is injective if $\partial P/\partial x + \partial Q/\partial y$
is not a surjective function.
ADyC. Arte, Diseño y Comunicación (2022)
Authors: Mancera Martínez Manuel Fernando
Published: September 2023

Esta publicación, coordinada por el profesor Manuel Fernando Mancera Martínez, da continuidad a una serie de ediciones previas que reúne los trabajos de diseño realizados por alumnos de la Facultad de Bellas Artes de la Universidad de Sevilla; de esta manera, se favorece una formación real dentro del ámbito creativo. En esta ocasión, coincidiendo con la publicación del test de Hermann Rorschach en 1921 y de su muerte en 1922, se ha desarrollado una adaptación de sus conocidas manchas. En este sentido, cada investigador se ha sumergido en los particulares mundos personales y ha extraído del concepto su esencia para generar una gráfica única que traduce desde un modelo cognitivo una interpretación subjetiva que adentra al lector en una realidad paralela.
Dynamic Pricing and Capacity Optimization in Railways
Authors: Manchiraju Chandrasekhar , Dawande Milind , Janakiraman Ganesh , Raghunathan Arvind
Published: September 2023

Problem definition: Revenue management in railways distinguishes itself from that in traditional sectors, such as airline, hotel, and fashion retail, in several important ways. (i) Capacity is substantially more flexible in the sense that changes to the capacity of a train can often be made throughout the sales horizon. Consequently, the joint optimization of prices and capacity assumes genuine importance. (ii) Capacity can only be added in discrete “chunks” (i.e., coaches). (iii) Passengers with unreserved tickets can travel in any of the multiple trains available during the day. Further, passengers in unreserved coaches are allowed to travel by standing, thus giving rise to the need to manage congestion. Motivated by our work with a major railway company in Japan, we analyze the problem of jointly optimizing pricing and capacity; this problem is more-general version of the canonical multiproduct dynamic-pricing problem. Methodology/results: Our analysis yields four asymptotically optimal policies. From the viewpoint of the pricing decisions, our policies can be classified into two types—static and dynamic. With respect to the timing of the capacity decisions, our policies are again of two types—fixed capacity and flexible capacity. We establish the convergence rates of these policies; when demand and supply are scaled by a factor [Formula: see text], the optimality gaps of the static policies scale proportional to [Formula: see text], and those of the dynamic policies scale proportional to [Formula: see text]. We illustrate the attractive performance of our policies on a test suite of instances based on real-world operations of the high-speed “Shinkansen” trains in Japan and develop associated insights. Managerial implications: Our work provides railway administrators with simple and effective policies for pricing, capacity, and congestion management. Our policies cater to different contingencies that decision makers may face in practice: the need for static or dynamic prices and for fixed or flexible capacity.

Supplemental Material: The online appendix is available at https://doi.org/10.1287/msom.2022.0246 .
Las huellas como herramienta para la educación ambiental
Authors: Méndez-Saint Martin Gabriela , Díaz-Ruíz Yulisenia Lourdes , Cortes-García Jorge Francisco
Published: September 2023

Las huellas de mamíferos, esas marcas en el suelo que a menudo dejamos pasar desapercibidas, son tesoros ocultos en la naturaleza que no cualquiera logra ver. Pero, ¿y son mucho más que simples marcas en el suelo?
El surgimiento de los mamíferos del Desierto Sonorense
Authors: Ortega-Borchardt José Ángel , Barba-Acuña Isai David , Gallo-Reynoso Juan Pablo
Published: September 2023

A lo largo del tiempo en la escala geológica, los mamíferos han jugado un papel importante en nuestros ecosistemas. Además, muchos de ellos han mostrado una gran capacidad y diversidad de adaptaciones para sobrevivir en las condiciones en el desierto más tropical de Norteamérica: el Desierto Sonorense.
Noninvasive transcutaneous bilirubin measurement in adults using skin diffuse reflectance
Authors: Chen Chia-Te , Tseng Sheng-Hao , Sung Bing-Hsuan , Chen Ying-Yu , Cheng Hsiu-Chi
Published: September 2023

Accurate measurement of bilirubin concentration in adults is crucial for the diagnosis and management of liver and biliary tract diseases. Traditional methods relying on central laboratory testing pose challenges such as invasiveness, patient discomfort, and time consumption. Non-invasive alternatives have been explored, but their applicability to adult populations remains uncertain. This study aimed to develop and validate a portable non-invasive optical system based on spatially resolved diffuse reflectance spectroscopy (DRS) specifically tailored for adult transcutaneous bilirubin measurement. Forty-two adult patients with various underlying conditions were included in the study. Comparisons between transcutaneous bilirubin values measured by the DRS system and total serum bilirubin concentrations obtained through blood tests revealed strong correlations, particularly at the neck (r = 0.872) and the medial side of the right upper arm (r = 0.940). Bland-Altman analyses demonstrated substantial agreement between the transcutaneous bilirubin values and total serum bilirubin concentrations. The results highlight the potential of the non-invasive DRS system as a convenient and reliable tool for monitoring bilirubin values in adults.
Design of flexible hollow core fiber based photoacoustic gas sensor with high cell constant and compact size
Authors: Zhang Bo , Shi Yiwei
Published: September 2023

Here we designed, optimized, and proposed a flexible low frequency resonant photoacoustic (PA) gas sensor by using a large core leaky hollow core fiber (L-HCF). The influences from the dimensions, the transmission loss and the bending loss on the performance of the flexible PA gas sensor were systematically investigated. In this work, the optimized inner diameter and length of the L-HCF were 1.7 mm and 300 mm, respectively. The L-HCF based PA cell constant was calculated to be 12115 Pa/(W·cm−1). The minimum detectable limit (MDL) for trace C2H2 detection achieved 23.0 ppb when the lock-in integration time was 200 s by using a near-infrared distributed feedback (DFB) laser source and a low-cost electrical micro-electro-mechanical system (MEMS) microphone. Besides, the amplitude decay ratio of the of the PA signal was only 11.3% when the bending radius of the L-HCF was 100 mm. The normalized noise equivalent absorption (NNEA) coefficient is calculated to be 6.6 × 10−9 W•cm−1•Hz−1/2. The L-HCF based PA cell was proved to own merits of compact size, high cell constant, small gas volume and low cost.
Local negative feedback of Rac activity at the leading edge underlies a pilot pseudopod-like program for amoeboid cell guidance
Authors: Town Jason P. , Weiner Orion D.
Published: September 2023

To migrate efficiently, neutrophils must polarize their cytoskeletal regulators along a single axis of motion. This polarization process is thought to be mediated through local positive feedback that amplifies leading edge signals and global negative feedback that enables sites of positive feedback to compete for dominance. Though this two-component model efficiently establishes cell polarity, it has potential limitations, including a tendency to “lock” onto a particular direction, limiting the ability of cells to reorient. We use spatially defined optogenetic control of a leading edge organizer (PI3K) to probe how neutrophil-like HL-60 cells balance “decisiveness” needed to polarize in a single direction with the flexibility needed to respond to new cues. Underlying this balancing act is a local Rac inhibition process that destabilizes the leading edge to promote exploration. We show that this local inhibition enables cells to process input signal dynamics, linking front stability and orientation to local temporal increases in input signals.
Seroprevalence survey of anti-SARS-CoV-2 antibody and associated factors in South Africa: Findings of the 2020–2021 population-based household survey
Authors: Moyo Sizulu , Simbayi Leickness C. , Zuma Khangelani , Zungu Nompumelelo , Marinda Edmore , Jooste Sean , Ramlagan Shandir , Fortuin Mirriam , Singh Beverley , Mabaso Musawenkosi , Reddy Tarylee , Parker Whadi-ah , Naidoo Inbarani , Manda Samuel , Goga Ameena , Ngandu Nobubelo , Cawood Cherie , Moore Penny L. , Puren Adrian
Published: September 2023

Population-based serological testing is important to understand the epidemiology and estimate the true cumulative incidence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) to inform public health interventions. This study reports findings of a national household population SARS-CoV-2 serosurvey in people 12 years and older in South Africa. This cross-sectional multi-stage random stratified cluster survey undertaken from November 2020 to June 2021 collected sociodemographic data, medical history, behavioural data, and blood samples from consenting participants. The samples were tested for SARS-CoV-2 antibodies using the Roche ElecsysAnti-SARS-CoV-2 chemiluminescence immunoassay (CLIA) Total Antibody Test. The survey data were weighted by age, race, sex, and province with final individual weights benchmarked against the 2020 mid-year population estimates and accounted for clustering. Descriptive statistics summarize the characteristics of participants and seroprevalence. Logistic regression analyses were used to identify factors associated with seropositivity. From 13290 survey participants (median age 33 years, interquartile range (IQR) 23–46 years), SARS-CoV-2 seroprevalence was 37.8% [95% Confidence Interval (CI) 35.4–40.4] and varied substantially across the country’s nine provinces, and by sex, age and locality type. In the final adjusted model, the odds of seropositivity were higher in women than in men [aOR = 1.3 (95% CI: 1.0–1.6), p = 0.027], and those living with HIV (self-report) [aOR = 1.6 (95% CI: 1.0–2.4), p = 0.031]. The odds were lower among those 50 years and older compared to adolescents 12–19 years old [aOR = 0.6 (95% CI: 0.5–0.8), p<0.001] and in those who did not attend events or gatherings [aOR = 0.7 (95% CI: 0.6–1.0), p = 0.020]. The findings help us understand the epidemiology of SARS-CoV-2 within different regions in a low-middle-income country. The survey highlights the higher risk of infection in women in South Africa likely driven by their home and workplace roles and also highlighted a need to actively target and include younger people in the COVID-19 response.
Geographical distribution of scrub typhus and risk of Orientia tsutsugamushi infection in Indonesia: Evidence mapping
Authors: Saraswati Kartika , Elliott Ivo , Day Nicholas P. J. , Baird J. Kevin , Blacksell Stuart D. , Ristiyanto  , Moyes Catherine L.
Published: September 2023

Background

Scrub typhus is a potentially fatal acute febrile illness caused by bacteria in the genus Orientia. Though cases have been documented, a comprehensive body of evidence has not previously been compiled to give an overview of scrub typhus in Indonesia. This study aimed to address this key knowledge gap by mapping and ranking geographic areas based on existing data on the presence or absence of the pathogen in humans, vectors, and host animals.

Methodology/principal findings

We performed searches on local and international electronic databases, websites, libraries, and collections including Embase, Medline, and Scopus to gather relevant evidence (including grey literature). After extracting data on the presence and absence of the pathogen and its vectors, we ranked the evidence based on the certainty for the presence of human infection risk. The country was divided into subnational units, and each were assigned a score based on the evidence available for that unit. We presented this in an evidence map. Orientia tsutsugamushi presence has been identified on all the main islands (Sumatra, Java, Borneo, Celebes, Papua). About two thirds of the data points were collected before 1946. South Sumatra and Biak had the strongest evidence for sustaining infectious vectors. There was only one laboratory confirmed case in a human identified but 2,780 probable cases were documented. The most common vector was Leptotrombidium deliense.

Conclusions/significance

Our review highlights the concerning lack of data on scrub typhus in Indonesia, the fourth most populous country in the world. The presence of seropositive samples, infected vectors and rodents confirm O. tsutsugamushi is widespread in Indonesia and likely to be causing significant morbidity and mortality. There is an urgent need to increase surveillance to better understand the burden of the disease across the archipelago and to inform national empirical fever treatment guidelines.
Barriers and opportunities for improving management of snakebites: Perspectives of healthcare workers in Northern Uganda
Authors: Wafula Solomon T. , Namakula Lydia N. , Ninsiima Lesley R. , Ssekamatte Noah Kiwanuka , Walekhwa Abel W. , Mugume Innocent B. , Musoke David
Published: September 2023

Background

Snakebites are a neglected public health problem that pose a significant burden on affected individuals and communities in many sub-Saharan African countries, including Uganda. However, the barriers and facilitators to snakebite management within healthcare settings are not as well understood and well-documented. The aim of this study was to explore the experiences and perspectives of healthcare workers involved in handling snakebite incidents at individual and health system levels in Arua and Gulu districts in Northern Uganda. We sought to understand how healthcare workers manage snakebite cases, what challenges they encounter, and what opportunities they perceive for improvement.

Methods

We conducted a qualitative study using in-depth interviews with 18 healthcare workers from different cadres, seniority levels, and facility types. We used iterative thematic analysis to explore the management procedures, challenges, and opportunities for snakebite management. Using thematic analysis, we identified the overarching themes and subthemes related to snakebite management and associated barriers and opportunities.

Results

The main barriers to snakebite management identified by healthcare workers were inadequate knowledge and skills; limited availability of antivenom; lack of protocols for snakebite management; delayed treatment-seeking for patients; and poor referral systems. The main opportunities for improvement were regular in-service training; increasing public education and awareness about snakebite prevention and management; and increased funding and research.

Conclusion

This study highlights the need for interventions to address the identified barriers while leveraging the existing opportunities to enhance snakebite management in Uganda. Specifically, we recommend the provision of regular training and support to healthcare workers, developing clinical guidelines, and improving the availability of antivenoms.
Differentiating the roles of Mycobacterium tuberculosis substrate binding proteins, FecB and FecB2, in iron uptake
Authors: de Miranda Rodger , Cuthbert Bonnie J. , Klevorn Thaís , Chao Alex , Mendoza Jessica , Arbing Mark , Sieminski Paul J. , Papavinasasundaram Kadamba , Abdul-Hafiz Sumer , Chan Sum , Sassetti Christopher M. , Ehrt Sabine , Goulding Celia W.
Published: September 2023

Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis, poses a great threat to human health. With the emergence of drug resistant Mtb strains, new therapeutics are desperately needed. As iron is critical to the growth and survival of Mtb, mechanisms through which Mtb acquires host iron represent attractive therapeutic targets. Mtb scavenges host iron via Mtb siderophore-dependent and heme iron uptake pathways. While multiple studies describe the import of heme and ferric-siderophores and the export of apo-siderophores across the inner membrane, little is known about their transport across the periplasm and cell-wall environments. Mtb FecB and FecB2 are predicted periplasmic binding proteins implicated in host iron acquisition; however, their precise roles are not well understood. This study sought to differentiate the roles FecB and FecB2 play in Mtb iron acquisition. The crystallographic structures of Mtb FecB and FecB2 were determined to 2.0 Å and 2.2 Å resolution, respectively, and show distinct ligand binding pockets. In vitro ligand binding experiments for FecB and FecB2 were performed with heme and bacterial siderophores from Mtb and other species, revealing that both FecB and FecB2 bind heme, while only FecB binds the Mtb sideophore ferric-carboxymycobactin (Fe-cMB). Subsequent structure-guided mutagenesis of FecB identified a single glutamate residue—Glu339—that significantly contributes to Fe-cMB binding. A role for FecB in the Mtb siderophore-mediated iron acquisition pathway was corroborated by Mycobacterium smegmatis and Mtb pull-down assays, which revealed interactions between FecB and members of the mycobacterial siderophore export and import machinery. Similarly, pull-down assays with FecB2 confirms its role in heme uptake revealing interactions with a potential inner membrane heme importer. Due to ligand preference and protein partners, our data suggest that Mtb FecB plays a role in siderophore-dependent iron and heme acquisition pathways; in addition, we confirm that Mtb FecB2 is involved in heme uptake.
Pharmacological inhibition of bromodomain and extra-terminal proteins induces an NRF-2-mediated antiviral state that is subverted by SARS-CoV-2 infection
Authors: Mhlekude Baxolele , Postmus Dylan , Stenzel Saskia , Weiner January , Jansen Jenny , Zapatero-Belinchón Francisco J. , Olmer Ruth , Richter Anja , Heinze Julian , Heinemann Nicolas , Mühlemann Barbara , Schroeder Simon , Jones Terry C. , Müller Marcel A. , Drosten Christian , Pich Andreas , Thiel Volker , Martin Ulrich , Niemeyer Daniela , Gerold Gisa , Beule Dieter , Goffinet Christine
Published: September 2023

Inhibitors of bromodomain and extra-terminal proteins (iBETs), including JQ-1, have been suggested as potential prophylactics against SARS-CoV-2 infection. However, molecular mechanisms underlying JQ-1-mediated antiviral activity and its susceptibility to viral subversion remain incompletely understood. Pretreatment of cells with iBETs inhibited infection by SARS-CoV-2 variants and SARS-CoV, but not MERS-CoV. The antiviral activity manifested itself by reduced reporter expression of recombinant viruses, and reduced viral RNA quantities and infectious titers in the culture supernatant. While we confirmed JQ-1-mediated downregulation of expression of angiotensin-converting enzyme 2 (ACE2) and interferon-stimulated genes (ISGs), multi-omics analysis addressing the chromatin accessibility, transcriptome and proteome uncovered induction of an antiviral nuclear factor erythroid 2-related factor 2 (NRF-2)-mediated cytoprotective response as an additional mechanism through which JQ-1 inhibits SARS-CoV-2 replication. Pharmacological inhibition of NRF-2, and knockdown of NRF-2 and its target genes reduced JQ-1-mediated inhibition of SARS-CoV-2 replication. Serial passaging of SARS-CoV-2 in the presence of JQ-1 resulted in predominance of ORF6-deficient variant, which exhibited resistance to JQ-1 and increased sensitivity to exogenously administered type I interferon (IFN-I), suggesting a minimised need for SARS-CoV-2 ORF6-mediated repression of IFN signalling in the presence of JQ-1. Importantly, JQ-1 exhibited a transient antiviral activity when administered prophylactically in human airway bronchial epithelial cells (hBAECs), which was gradually subverted by SARS-CoV-2, and no antiviral activity when administered therapeutically following an established infection. We propose that JQ-1 exerts pleiotropic effects that collectively induce an antiviral state in the host, which is ultimately nullified by SARS-CoV-2 infection, raising questions about the clinical suitability of the iBETs in the context of COVID-19.
A retrospective evaluation of confirmed and suspected poisonings in 166 cats between 2016 and 2020
Authors: Markert Carina , Heilmann Romy Monika , Kiwitz Dschaniena , Dörfelt René
Published: September 2023

Background and Aim: Poisonings commonly bring cats and dogs to veterinary emergency facilities. This retrospective study aimed to analyze clinical signs, confirmed or suspected toxicants, treatments, and outcomes of feline poisoning cases presented over 5 years to the emergency service of a small animal referral center.

Materials and Methods: Medical records of 166 cats were evaluated for a history of confirmed or presumed poisoning, suspected toxicant, clinical signs, treatment, and outcome. Poisoning probability was determined using patient history, clinical findings, observation, toxicologic examination, and, in some cases, gastric contents.

Results: Most cats were hospitalized (94.0%) due to poisoning with mostly unknown toxicants (48.2%), rodenticides (21.1%), and various toxic plants (12.0%), followed by antiparasitics (6.0%), chemicals (6.0%), drugs (4.2%), tetrahydrocannabinol (1.2%), or inhaled smoke (1.2%). Patients presented predominantly with neurologic deficits (68.7%), reduced general condition (60.2%), and hypothermia (43.4%). The survival rate was 88.6%. Most cats (93.2%) showed no apparent complications at the time of discharge from the hospital. Toxicant-related complications (48.2%) included thermodysregulation (22.9%), central nervous system signs (18.7%), respiratory issues (6.0%), nephrotoxicity (2.4%), gastrointestinal complications (4.8%), evidence of hepatic failure (4.8%), and hemorrhage (1.8%).

Conclusion: In this study, the causative toxicant remained unidentified in many cases. Known poisonings were mostly caused by rodenticides. Neurological signs were the most common clinical presentation. Survival rates were high and comparable with those reported by others.

Keywords: clinical signs, intoxication, outcome, seizures, toxicant.
Bamboo as reinforcing material in concrete structures: A literature study
Authors: Lakusic Stjepan
Published: September 2023

The production of conventional building materials such as steel, concrete, and brick causes severe exploitation of natural resources and emission of greenhouse gases. Therefore, alternative eco-friendly, sustainable, and inexpensive building materials are required. Bamboo is a natural material which can replace steel in various structures. Several studies have evaluated the potential of bamboo as a steel replacement in structures. This paper provides a literature review on the use of bamboo-reinforced concretes (BRC) in various countries.
Turisztikai mobilitásváltozás a Covid19-pandémia alatt és után, különös tekintettel a közlekedési eszköz- és desztinációválasztásra
Authors: Behringer Zsuzsanna , Kulcsár Noémi , Hinek Mátyás , Tevely Titanilla
Published: September 2023

A turizmus és a közlekedés kapcsolatát erőteljesen alakítják az egészségügyi szempontok és a háború által okozott gazdasági, társadalmi hatások. Empirikus kutatásunkban ezen tényezőket vizsgáltuk a magyar lakosság körében végzett online kérdőíves felmérés során. Összehasonlító statisztikai elemzéssel vizsgáltuk az utazási szokások és a turisztikai mobilitás alakulását a 2021-2022. évi megvalósult és a 2023-ra tervezett utazások alapján. Eredményeink szerint a bezártság és a korlátozások ellenére sem csökkent az utazási kedv, de a vásárlási döntések merőben átalakultak, ami főként a választott desztináció földrajzi távolsága, biztonságossága és az odajutáshoz használt közlekedési eszköz esetében érzékelhető. Ezt tovább fokozták az orosz-ukrán háború okozta drasztikus áremelések, amelyek hatására a fogyasztói döntések meghozatalában prioritást kap a takarékosság és a költségek optimalizálása, ezért alanyaink turisztikai mobilitása jóval visszafogottabb a 2023-as utazási tervek esetében.
Turisztikai fogadóterület-dizájn a Duna mentén
Authors: Bódis Gábor
Published: September 2023

Jelen cikk egy olyan hazai dizájn jógyakorlatot mutat be, melynek megvalósulásával a Dunához kapcsolódó mikrodesztináció jönne létre mind a magyar, mind a szlovák oldalon az Alsó-Ipoly és Alsó-Garam menti turisztikai fejlesztések összehangolásával, hálózatot alkotva, a multimodalitásra alapozva, a kölcsönös szinergiákat kihasználva. Ennek érdekében a Hungary NEXT ország-márka-műhely – egy Európai Uniós Interreg projekt keretében – a Pontibus Korlátolt Felelősségű Európai Területi Társulással, mint vezető partnerrel, közösen fókuszcsoportos műhelytalálkozókat szervezve kidolgozta azokat a projektcsomagokat, amelyek egy egységes kínálatra épülő, határon átnyúló desztináció alapját képezik. A Pontibus Korlátolt Felelősségű Európai Területi Társulást 2015-ben hozta létre Pest Megye Önkormányzata és a Nyitrai Kerületi Önkormányzat azzal a céllal, hogy fejlessze a határmenti társadalmi, gazdasági, turisztikai, kulturális és intézményközi kapcsolatokat, hozzájárulva ezzel a térség összehangolt fejlődéséhez.
On factors affecting the change in the Gini coefficient

of the credit scoring model
Authors: Voloshyn Mykyta , Voloshyn Ihor
Published: September 2023

This article delves into practical challenges associated with monitoring the performance of credit scorecard after its implementation, considering the natural degradation of models over time. The Gini coefficient is commonly employed to assess performance, yet this metric can be influenced by four distinct factors, of which only two indicate the necessity to rebuild the model. The relationship between the Gini coefficient and underlying factors is investigated, employing simple examples and giving appropriate managerial decisions. Moreover, in adverse cases, the positive or neutral dynamic of the Gini can conceal in itself the hidden factors that urge to rebuild the model. The methodology for isolating the impact of these factors on the Gini coefficient is developed. A real-world case study utilizing authentic data demonstrates the comprehensive nature of performance assessment.
“Menos direitos e mais emprego”
Authors: Oliveira Laiza Rodrigues
Published: September 2023

A análise de discurso propõe o rompimento de ideias preconcebidas e analisa criticamente o discurso a fim de se afastar do senso-comum, especialmente quando se trata de analisar o discurso político. Essa teoria pode ser valiosa para identificar os mecanismos discursivos que escondem as relações de poder e subordinação entre interesses conflitantes no corpo social. Por isso, este trabalho visa fazer emergir, a partir dos dispositivos analíticos de interpretação discursiva, as discursividades no discurso amplamente veiculado ao longo do governo Bolsonaro, em que há a enunciação da frase “menos direito e mais emprego” retirada da materialidade discursiva de textos jornalísticos. A partir da análise, verificou-se a existência da formação ideológica neoliberal materializada nos discursos analisados, em que as discursividades sobre as relações de trabalho, oculta as relações de dominação/subordinação, naturalizando as relações de poder vigentes e preservando a engenharia social a serviço da produção e reprodução da desigualdade social.
trabajo de la interioridad en el marco de la atención a la diversidad
Authors: Nieto Rico Blanca
Published: September 2023

El trabajo de la interioridad cobra especial relevancia en los alumnos con necesidades educativas especiales que encontramos en los centros ordinarios. Cada vez son más las prisas, los ruidos y el exceso de tareas que llenan los pasillos de los colegios. Si a los alumnos ordinarios esto los altera, más aún lo hace con aquellos que tienen especial dificultad para interpretar el mundo (alumnos TEA), de controlar su impulsividad (alumnos TDAH) o de comprender las instrucciones verbales (alumnos TEL). En este artículo ofrecemos algunas ideas prácticas sobre cómo trabajar la interioridad mediante experiencias de observación, calma, escucha, reflexión y autoconocimiento.
Financial and Operational Creditors in Bankruptcy Resolution: A General Equilibrium Approach Under Three Game-Theoretic Division Rules with an Application to India
Authors: Prasad Rohit , Iyer S. Veena
Published: September 2023

The existing literature on bankruptcy division either ignores creditor type or focuses on secured and unsecured creditors, subsuming operational creditors in the latter category. Further, implications for the debtor and the economy as a whole are under-emphasized. We build a general equilibrium model with default using three game-theoretic division rules to examine the appropriate adjudication of the claims of financial and operational creditors for optimum output and firm profits as well as creditor welfare. Our paper extends and enriches the normative discussion on these game-theoretic division rules. The analysis indicates that the proportion of claims held by financial and operational creditors is a key determinant of overall outcomes, and that interests of the corporate debtor represent common ground that could soften creditor competition. Using a dataset of bankruptcy resolution cases from India, we identify the specific rules that approximate actual payout for different claim proportions and deduce the overriding power of financial creditors. Institutional changes that would result in better long-term outcomes are proposed.
Micro-Entrepreneurs’ Health Strategies During and Beyond the COVID-19 Pandemic
Authors: Marková Volejníčková Romana , Maříková Hana , Pospíšilová Marie , Švarcová Markéta
Published: September 2023

The topic of safeguarding against sickness grew in importance during the COVID-19 pandemic. People’s health was more at risk, yet not all had the same capacity and options to deal with it. Therefore, this article focuses on the under-researched topic of choice of strategies and individual practices for safeguarding against one’s sickness among micro-entrepreneurs (with 1–10 employees) before and during the pandemic, namely on the example of Czechia. We analyse 30 qualitative interviews with micro-entrepreneurs to demonstrate how their social location affects the attainability of strategies and individual practices for that purpose. It is primarily their family role (breadwinner vs caregiver) that, along with socioeconomic status, either limits or opens choices of strategies and individual practices or combinations thereof. Although the COVID-19 pandemic posed a high health risk to the entire society, it did not bring the micro-entrepreneurs to revise their often-risky choices in safeguarding against sickness. In contrast, it highlighted some specifics of micro-enterprises, e.g. their unclear organisational structure, which proved a high risk in the context of the health crisis.
Investigation on the supporting role of intelligent power system based on low carbon and environmental protection
Authors: Ding Xinqi , He Tao
Published: September 2023

The development of modern society requires not only attention to development methods and efficiency, but also correct evaluation of various environmental issues that arise during development, to achieve optimal social development without damaging the ecological environment. Intelligent power systems utilize new energy technologies, energy storage technologies, and smart grid technologies. Against this development background, how to achieve sustainable, environmentally friendly, and Low Carbon (LC) development in the power system operation, which has been at the center of China’s national economic construction and development system, has become a common concern for all participants. Therefore, this paper proposed a study on supporting role of intelligent power systems based on LC and environmental protection. In the new era, the target functions to be achieved by smart grids can provide the necessary support for the construction and development of LC power systems, and its importance is self-evident. Based on this reality, this article took LC power systems as the research object and combined the analysis of the functions of smart grids to discuss clean energy power systems. The experimental results showed that the Power Generation (PG) capacity of thermal PG increased from 280.4 billion kWh to 289.7 billion kWh. The increase in wind PG from 2.5 billion kWh to 5.5 billion kWh showed that although clean energy accounted for a small proportion, the power system was still dominated by traditional PG. However, clean energy PG is increasingly being valued. At the end of this article, corresponding rectification suggestions were also proposed, with the purpose of helping to optimize the development and improvement of LC power systems.
Expected vs. perceived effects of gender-affirming hormone therapy among transmasculine adolescents
Authors: Taillefer Valerie , Kelley Janie , Marsolais Sophie , Chiniara Lyne , Chadi Nicholas
Published: September 2023

Objectives

Gender-affirming testosterone therapy is increasingly prescribed among transmasculine adolescents and has been associated with improved mental health outcomes. However, expected and perceived effects of testosterone have not previously been compared in this population.

Methods

We compared desired and reported effects of testosterone in all consecutive transmasculine adolescents followed at a large interdisciplinary gender diversity clinic in North America. Participants received a prescription for testosterone and were first seen between November 2016 and May 2021. Our study was a retrospective audit of case notes. We collected self-reported desired effects prior to initiation of testosterone and self-reported perceived effects from participants’ medical records up to 24 months after initiation. The masculinizing effects of testosterone considered in our study were increased body/facial hair, voice deepening/Adam’s apple growth, increased muscle mass, clitoromegaly, and body fat redistribution.

Results

There were 76 participants included in this study. Mean age at prescription of testosterone was 16.31 years (standard deviation: 0.99 years). The effects desired by the greatest proportion of participants prior to initiation were increased body/facial hair (69 %) and voice deepening/Adam’s apple growth (52 %). These same two effects were the most reported by participants, reaching 80 % report rates at 12 months, and increasing steadily across the 24-month follow-up period.

Conclusions

Our study shows that for most, but not all gender diverse adolescents undergoing testosterone therapy, the most expected physical changes were seen in the first year of gender-affirming treatment. More research and provider education are needed to offer optimal counseling for adolescents undergoing gender-affirming hormone therapy.
Water-dispersible paper for packaging applications – balancing material strength and dispersibility
Authors: Pfennich Andrea Christine , Schoeffmann Elisabeth Anna , Lammer Herfried , Hirn Ulrich
Published: September 2023

Water-dispersible paper is useful for packaging applications as it disintegrates into its fibers after usage, and also is a fully biodegradable material. Here, we first introduce a laboratory testing method for the disintegration performance of different paper grades under low agitation in water. Then a quantitative analysis on the technological and physical mechanisms responsible for dispersibility of paper is performed. We identify lignin content, degree of refining and addition of starch as relevant factors reducing paper dispersibility. Addition of a debonding agent, a non-ionic surfactant, was not found to be effective here. We found a strong correlation of both, wet- and dry tensile strength to dispersibility. From all water absorption related paper properties only ultrasonic liquid penetration measurements were correlated to paper dispersibility. Principal component analysis revealed that paper strength and water penetration speed are not governed by different latent variables but instead are all strongly associated with the first principal component. This suggests that the same mechanisms are responsible for reduction of water penetration speed and wet/dry strength. Hence we suggest to decouple network strength and water penetration, e.g. by identifying suitable additives imparting bonding strength without reducing the access of water which is required to break the fiber–fiber bonds.
Content Analysis of Libraries’ Instagram Posts: Cultural Collection, Activities, and Preservation of Cultural Heritage
Authors: Rachman Yeni Budi , Gietty Tambunan Shuri Mariasih , Abdullah Sani Mad Khir Johari , Salim Tamara Adriani
Published: September 2023

Libraries’ roles and contributions in promoting and raising awareness of culture and cultural heritage to support the sustainability of cultural life can be strengthened by utilizing social media platforms, including Instagram. However, there is a gap in studies and research relating to how academic libraries reflect their cultural functions through social media, i.e., Instagram. This paper provides a content analysis of academic libraries’ Instagram accounts at three academic libraries located in the United States, Canada, and the United Kingdom. These libraries represent their universities’ concerns with promoting sustainable development goals, specifically Sustainable Development Goal 11 (make cities and human settlements inclusive, safe, resilient, and sustainable). This study analyzed and categorized the Instagram posts of academic libraries related to culture and cultural heritage to answer the following research question: how do academic libraries reflect their cultural functions through social media, i.e., Instagram? The results show that the academic libraries studied here considered reflecting their cultural functions through social media by informing users about various cultural events, collections, facts, and news on Instagram.
Independent isomeric yield ratios of fission products in the epi-cadmium neutron induced fission of 241Pu
Authors: Naik Haladhara , Singh Ram Janam , Dange Srikant Pandurang , Jang Wooyoung
Published: September 2023

Independent isomeric yield ratios (IR) of 130,132Sb, 131,133Te, 134,136I, 135Xe and 138Cs have been measured in the epi-cadmium neutron induced fission of 241Pu by using an off-line gamma-ray spectrometric technique. The average neutron energy (<E
n>) of the epi-cadmium reactor neutron spectrum is 1.9 MeV. From the IR values, root mean square fragment angular momenta (J
RMS) were deduced by using spin dependent statistical model analysis. Effect of nuclear structure on J
RMS values was examined. The present data in the epi-cadmium neutron induced fission of 241Pu were compared with the similar data in the thermal neutron induced fission of 241Pu to examine the role of excitation energy on fragment angular momentum.
Effect of oligosaccharides and aerobic training on hyperglycemia, growth and intestinal microbial diversity of diabetic rats
Authors: Choneva Mariya Atanasova , Hristozov Milen Veselinov , Dimov Ivica , Boyanov Krasimir Ognyanov , Dimitrov Iliyan Valeriev , Murdjeva Mariana Atanasova , Hrischev Petar Ivanov , Vasilev Veselin Atanasov , Georgieva Katerina Nikolova , Bivolarska Anelia Veselinova
Published: September 2023

Objectives

Type 1 diabetes mellitus is a metabolic disease characterized by dysbiosis. Modulation of the gut microbiota by oligosaccharides and aerobic training are proposed mechanisms that ameliorate the disease through affecting host-microbiota interactions.

Methods

Seventy-two male Wistar rats were randomly divided into 8 groups – 5 with streptozotocin-induced diabetes and 3 healthy controls. The effect of two oligosaccharides – xylo- and galactooligosaccharides, and of aerobic training on the blood glucose concentration, growth and diversity of the gut microbiota was evaluated in the current study.

Results

The galactooligosaccharides positively affected the glycemic status of the experimental animals as the diabetic and healthy rats had lower blood glucose concentration after 6 weeks of treatment (diabetic rats: week 4 vs. week 8, p=0.047; healthy rats: week 2,4,6,10 vs. week 8, p=0.001, p=0.000, p=0.025 and p=0.001, respectively). A positive effect of the galactooligosaccharides on body weight was observed when administered to diabetic rats in comparison to the diabetic control (p=0.020). Similar results were observed for the aerobically trained diabetic rats (p=0.004). The identification of bacterial species showed preserved microbiota diversity and indicated Bifidobacterium indicum, Lactobacillus feritoshensis and E. coli as the most abundant species among the analyzed genera.

Conclusions

Prebiotic treatment beneficially affected the hyperglycemia and growth of type 1 diabetic rats. The most significant effect of the aerobic training was the improvement of the morphological parameters. Oligosaccharide administration and exercise did not affect the diversity of the bacterial species.
Terpenoid compounds from the fruits of Solanum virginianum
Authors: Liu Yan , Liu Shuang , Xu Zhen-Peng , Wang Si-Yi , Jiang Yi-Kai , Guan Wei , Pan Juan , Kuang Hai-Xue , Yang Bing-You
Published: September 2023

Eleven compounds were isolated and identified from ethanolic extracts of Solanum virginianum fruits, including two new compounds (1–2) and nine known compounds (3–11). Their structures were determined to be melongenaterpene C15-O-β-D-glucopyranoside (1), (9Z)-3,7,11,15-tetramethyl -hexadeca-1,6,10-triene-3,5,14,15-tetraol-5-O-β-D-glucopyranoside (2), actini-dioionoside A (3), byzantionoside B (4), citroside A (5), 7Z-roseoside (6), matenoside A (7), megastigmane (8), dihydrophaseic acid 3′-O-β-D-glucopyranoside (9), taraxerol (10), and huzhangoside C (11). In this paper, NMR spectroscopy was used to study the structures of the compounds, comparing their data with those in the literature. In addition, the potential anti-inflammatory activity of the compounds was also evaluated using the RAW264.7 cell inflammation model induced by lipopolysaccharide (LPS). The terpenoids showed no significant anti-inflammatory activity.
Innovation in gallery education: Art experimental workshops in the Moravian Gallery
Authors: Burešová Lenka
Published: September 2023

The framework of this paper describes my own experience as an independent gallery educator in a museum institution, implementing a "classic educational format" focusing on experiential teaching activities for schools, practical teaching activities for the public in order to develop a "new educational format" for teaching within a gallery space.

These formats of a gallery educational activities were tested in the Moravian Gallery in Brno, Czech Republic and a series of free-time artistic and experimental workshops called ARTS'UP_ ART ON EX were created and open to the public. The gallery term for these activities was coined as "edutainment". The result was documented and curated in a permanent exhibition titled Art is Here -"New art".

Part of this research is an examination of galleries educational activities that explores the theory and the practical ideas to define the formats of education within gallery spaces to develop a programme of activities aimed to children and the public.

The aim is to explore other formats for spaces to learn by bringing the "educational institution" and "cultural institutions", together by developing a common ground to create a curriculum for visiting schools to create a new platform for teachers to expand the model of education.

The practical result of the research is the presentation of a gallery project created for the permanent exhibition of modern art in the Moravian Gallery. Since no educational material detailing the social science concept of modernism was created for the exhibition itself, the creation of a methodological sheet that contains structured educational content with a proposal for activities that allows elements of art pedagogy and cross-curricular links. In addition, the result enriches a constructivist-oriented model of teaching that can be used in galleries or can serve as a strategy point to develop new educational spaces.
Kultúrtörténeti értékek mediatizációja és alkalmazásuk a múzeumandragógiában
Authors: Szabó József
Published: September 2023

A kultúrandragógia olyan diszciplína, amely a kultúra és a nevelés kapcsolatát, azokat az oktatási és kulturális intézményekben dolgozó szakemberek által használt módszereket és eszközöket tanulmányozza, amelyek segítségével a kultúra átadása és megértése hatékonyabbá válik. Hipotézisem, hogy a kultúrandragógia egyik kiemelt területe a média, ezen belül is a helyi média. Mivel a legtöbb média egység közvetlen kapcsolatban áll a térség múzeumaival és muzeális intézményeivel, így össze tud gyűjteni és feldolgozni minden olyan témát, ami a lakosság számára érdekes lehet. A múzeumokkal, a tudományos élet és az egyetemek szakembereivel együttműködve tudja feltárni és bemutatni a lokális kulturális és kultúrtörténeti értékeket a különféle felületeken. A tanulmányban a Médiacentrum Debrecen Kft kultúrandragógia jellegű, elsősorban kultúrtörténeti munkáját mutatjuk be. Ez rávilágít arra, hogy az országban működő közel száz helyi televízió és média üzemeltető milyen fontos szerepet tölt be a kulturális értékek felkutatásában, megőrzésében és az információ továbbításában. Az összegyűjtött anyagokból kiderült, hogy a debreceni média tudatosan, már 2001 óta foglalkozik a helytörténeti emlékek gyűjtésével és filmes formában történő feldolgozásával, 2023-ig több mint 40 filmet készített, és a régióhoz kapcsolódó emlékeket a föld minden országából felkutatta. Sikerült összegezni mindazokat a kultúrtörténeti emlékeket, amikről a média filmeket, anyagokat késztett. A kapott információk ezen a példán keresztül rávilágítottak arra, hogy a helyi média az egyes régiók kulturális értékeinek őrzője és az erről szóló tájékozódás központja.
Üniversite Öğrencilerinde Psikolojik Sağlamlık ile Ayrımcılık Algısı Arasındaki İlişki Üzerine Bir Araştırma
Authors: APAK Hıdır , TATLICIOĞLU Oktay , ACAR Muhammet Cevat
Published: September 2023

Bu çalışmanın amacı, üniversite öğrencilerinin psikolojik sağlamlık düzeylerinin ayrımcılık algısını nasıl etkilediğini ve psikolojik sağlamlık ile ayrımcılık algısı düzeyleri arasındaki ilişkinin sosyodemografik değişkenlerle nasıl farklılaştığını belirlemektir. Nicel bir araştırma olarak, bu çalışma ilişkisel tarama modelini kullanmaktadır. Araştırmanın örneklemini, Mardin Artuklu Üniversitesi'nde farklı fakültelerde okuyan 494 öğrenci oluşturmaktadır. Veri toplama aracı olarak, araştırmacılar tarafından hazırlanan sosyo-demografik veri formu, Yetişkin Psikolojik Sağlamlık Ölçeği ve Öğrencilerin Ayrımcılık Algısı Ölçeği kullanılmıştır. Araştırmanın temel bulgusu, öğrencilerin psikolojik sağlamlığın ayrımcılık algısını azaltan bir etkiye sahip olduğudur. Bu, psikolojik sağlamlığın ayrımcılık algısını önleyebilecek önemli bir faktör olduğunu göstermektedir. Öğrencilerin cinsiyet ve sınıf düzeylerine göre psikolojik sağlamlık ve ayrımcılık algı düzeylerinde bir farklılık bulunmamıştır. Ancak, psikolojik sağlamlık düzeyi açısından fakülteler arasında anlamlı bir farklılık olduğu tespit edilmiştir. Bu araştırmanın sonuçları, sağlık hizmeti sağlayıcıları, eğitimciler ve diğer profesyonellerin, ayrımcılığın ruh sağlığı ve esenliği üzerindeki potansiyel etkilerinin farkında olmaları gerektiğini göstermektedir. Ayrıca, ayrımcılık algısı ile psikolojik sağlamlık arasındaki ilişkinin doğasını ve farklı gruplar ve bağlamlar arasında nasıl değişebileceğini daha iyi anlamak için daha fazla araştırmaya ihtiyaç vardır. Bu çalışmanın sonuçları, benzer çalışmalar için önemli bir temel oluşturabilir.