bluuebunny/crossref_metadata_2025 huggingface dataset:
A Modal Contextualist Account of Essentialist Claims as a Response to Kit Fine
Authors: Nencha Cristina
Published: April 2023

Kit Fine advanced a remarkable objection to the Modal Account of Essentialism. Fine’s concern is commonly thought to have put the modal account in serious jeopardy. I believe that Fine’s objection is mainly based on two intuitions. As a reaction to Fine’s argument, while many scholars have abandoned the modal account, others have attempted to save it. The main strategy in the last direction consists in adding to the modal criterion a condition that is supposed to hold universally. For different reasons, this strategy ends up rejecting part of the first Fine’s intuition. I believe that a modal contextualist approach to essentialist claims, through the addition of a ‘particularist’ condition to the modal criterion, can provide an interesting alternative for those who wish to maintain a modal approach to essentialism. I will show that this approach, while rejecting the second Finean intuition, is able to account for his first intuition.
Use of a liquid chromatography-tandem mass spectrometry method to assess the concentration of epinephrine, norepinephrine, and phenylephrine stored in plastic syringes
Authors: Cohen Alejandro M. , Wiseman Luke , Al Faraj Ahmed , Andreou Pantelis , Hall Richard , Neira Victor M.
Published: April 2023

Objectives

There are concerns about the potency of epinephrine (EPI), norepinephrine (NE), and phenylephrine (PE) stored in syringes for later infusions in clinical care. The objective of our study was to optimize a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method to determine the concentrations EPI, NE, and PE dissolved in normal saline and stored in 50 mL 3-part Becton Dickinson syringes.

Methods

Medications were diluted in normal saline to 80 μg/mL for EPI and NE, and 100 μg/mL for PE. The solutions were stored in syringes for 0 (fresh), 3, and 7 days in a medical refrigerator. United States Pharmacopeia grade EPI, NE, and PE and their deuterium-labeled analogs were used as calibration standards. Stored samples and standards were diluted and analyzed by LC-MS/MS operated in selected reaction monitoring mode.

Results

The calculated limit of quantification for EPI, NE and PE were well below the concentrations used in clinical practice. The coefficient of variation remained below 12 % for all samples. The standard linear calibration regressions for EPI, NE, and PE had r

2
values of between 0.96 and 0.98 (p < 0.001). EPI and NE stored in the refrigerator remained within 10 % of the of their initial concentrations at all time points. The concentration of PE in syringe decreased by 19.85 % at 3 days, with no further decrease at 7 days, compared to fresh PE.

Conclusions

The sample preparation steps and optimized LC-MS/MS method allowed simple and reliable measurements of EPI, NE, and PE.
Effect of zero penetration angle chevrons in supersonic jet noise and screech tone mitigation
Authors: Periyasamy Kaleeswaran , Natarajan Kadiresh P. , Surendra Bogadi , Suresh Chandra Khandai
Published: April 2023

An experimental study is conducted to determine the effect of chevrons with zero penetration angles at the CD nozzle exit on an emitted noise field. The implication of passive control is to reduce the blockage of the nozzle exit area with minimal engine thrust penalty. The cold air jets issued at design Mach numbers 1.5 and 1.75 from the De Laval nozzles of the circular section were investigated. This passive control eliminates screech tones at the over and ideally expanded conditions at 60° and 90° in the azimuth plane. The acoustic data measurements have also been observed for the chosen jet Mach numbers. The schlieren images reveal the shock cell pattern to eliminate the effect of shock-associated noise levels at supersonic jets. The results show that 10 chevrons with no penetration act as an effective eliminator of screech tone and noise suppression average ∆OASPL value up to 3 dB at Mach number 1.75.
“Digital Taylorism” for some, “digital self-determination” for others? Inequality in job autonomy across different task domains
Authors: Kirchner Stefan , Meyer Sophie-Charlotte , Tisch Anita
Published: April 2023

In interdisciplinary debates, it is often assumed that changes in job autonomy in the course of digitalisation will be similar for all employees, even across task domains. Some authors postulate the emergence of a “digital Taylorism”, while others suggest that the digital transformation enables more “digital self-determination”. Based on a large-scale survey of employees in Germany, this article quantitatively examines both assumptions, with a particular focus on possible differences across job tasks. The results point to a systematic inequality between the task domains considered: Knowledge-related tasks seem to be associated with increased “digital self-determination”, while the results for manufacturing and service tasks tend towards a pattern of “digital Taylorism”. Overall, the debate needs to go beyond discussing possible future scenarios and address the complex links between job quality, digital technologies and tasks that are already changing the world of work today.
Frühaufklärung produktionstechnischer Defizite
Authors: Dobler Richard , Reinhart Gunther
Published: April 2023

Industriebetriebe stehen regelmäßig neuen Herausforderungen gegenüber, die es zu überwinden gilt. Viele dieser Herausforderungen finden ihren Ursprung in Diskontinuitäten. Um diese zu beherrschen, ist ein passendes Frühaufklärungssystem von Nöten. Trotz der Vielzahl an bestehenden Ansätzen wurde bisher kein Ansatz erforscht, der explizit produktionsrelevante Diskontinuitäten und deren Auswirkungen behandelt. Deshalb wird in diesem Beitrag eine Methodik zu diesem Zweck präsentiert.
Befähigung von KMU zur Nutzung von Machine-Learning-Potenzialen
Authors: Savadogo Manuel , Stonis Malte
Published: April 2023

Die Nutzung von Machine Learning hat sich bereits in vielen Bereichen des alltäglichen Lebens etabliert und findet zunehmend Anwendung. Auch im Bereich der Produktion und Logistik gewinnt Machine Learning immer mehr an Bedeutung. Die komplexe Implementierung stellt jedoch vor allem kleine und mittlere Unternehmen (KMU) vor große Herausforderungen. Dies führt dazu, dass viele KMU auf die Nutzung von Machine-Learning-Anwendungen verzichten. Daher befasst sich das IPH – Institut für Integrierte Produktion gemeinsam mit dem IPRI – International Performance Research Institute in dem Forschungsprojekt „MLready“ mit der Entwicklung einer Einführungsstrategie, die KMU dazu befähigen soll, Machine Learning einfach und effizient implementieren und nutzen zu können.
The spectacle of production: a Roman imperial winery at the Villa of the Quintilii, Rome
Authors: Dodd Emlyn , Galli Giuliana , Frontoni Riccardo
Published: April 2023

The elites of many past cultures have sought to romanticise agricultural labour—often the source of their wealth and hence their status. A recently discovered winery at the Villa of the Quintilii on the Via Appia Antica, near Rome, provides only the second known example from the Graeco-Roman world of an opulent wine production complex built to facilitate vinicultural ‘spectacle’. The authors present the architectural and decorative form of the winery and illustrate how the annual vintage was reimagined as ‘theatrical’ performance. Dating to the mid third century AD, the complex illuminates how ancient elites could fuse utilitarian function with ostentatious luxury to fashion their social and political status.
The Coordinating Research on Emerging Arboviral Threats Encompassing the Neotropics (CREATE-NEO)
Authors: Vasilakis Nikos , Hanley Kathryn A.
Published: April 2023

Arthropod-borne viruses, such as dengue, Zika, and Mayaro, are emerging at an accelerating rate in the neotropics. The Coordinating Research on Emerging Arboviral Threats Encompassing the Neotropics (CREATE-NEO) project, a part of the NIH-funded Centers for Research in Emerging Infectious Diseases (CREID) network provides a nimble and flexible network of surveillance sites in Central and South America coupled with cutting-edge modeling approaches to anticipate and counter these threats to public health. Collected data and generated models will be utilized to inform and alert local, regional, and global public health agencies of enzootic arboviruses with a high risk of spillover, emergence, and transmission among humans, and/or international spread. CREATE-NEO builds capacity in situ to anticipate, detect, and respond to emerging arboviruses at the point of origin, thereby maximizing the potential to avert full-blown emergence and widespread epidemics.
A glycine zipper motif is required for the translocation of a T6SS toxic effector into target cells
Authors: Ali Jemal , Yu Manda , Sung Li‐Kang , Cheung Yee‐Wai , Lai Erh‐Min
Published: April 2023

Type VI secretion systems (T6SSs) can deliver diverse toxic effectors into eukaryotic and bacterial cells. Although much is known about the regulation and assembly of T6SS, the translocation mechanism of effectors into the periplasm and/or cytoplasm of target cells remains elusive. Here, we use the Agrobacterium tumefaciens DNase effector Tde1 to unravel the mechanism of translocation from attacker to prey. We demonstrate that Tde1 binds to its adaptor Tap1 through the N‐terminus, which harbors continuous copies of GxxxG motifs resembling the glycine zipper structure found in proteins involved in the membrane channel formation. Amino acid substitutions on G39xxxG43 motif do not affect Tde1–Tap1 interaction and secretion but abolish its membrane permeability and translocation of its fluorescent fusion protein into prey cells. The data suggest that G39xxxG43 governs the delivery of Tde1 into target cells by permeabilizing the cytoplasmic membrane. Considering the widespread presence of GxxxG motifs in bacterial effectors and pore‐forming toxins, we propose that glycine zipper‐mediated permeabilization is a conserved mechanism used by bacterial effectors for translocation across target cell membranes.
The Effect of the Game-Based Learning Model on Student Engagement in History Learning
Authors: Rahmawati Vini , Umamah Nurul , Sumardi Sumardi , Marjono Marjono
Published: April 2023

This study aimed to examine the effect of the game-based learning model on student engagement in history learning. A quasi-experimental design with a post-test-only model and a non-equivalent control-group design was used to verify the effect of the two variables. The sample consisted of 66 students in classes XI IPS 4 and XI IPS 1 at SMA Negeri 1 Gambiran, obtained through a homogeneity test. The data were collected using documentation and questionnaires. The data analysis technique used one-way ANOVA and LSD (Least Significant Difference) follow-up test with the help of SPSS 22.0 software for Windows. Data analysis results showed that there was an effect of applying the game-based learning model on student engagement in history classrooms. The results of the one-way ANOVA test showed that the probability value (sig.) in the experimental group was 0.040 0.05, with the LSD follow-up test LSD of 2.45455. Therefore, it is concluded that there was an effect of student engagement on the experimental group taught using the game-based learning model. This research recommends that the game-based learning model can be a reference for improving student engagement, active learning, and student-centered learning so that the learning process becomes fun, interactive, communicative, collaborative, and able to maximize the role of technology in education.Keywords: Education 4.0, game-based learning, student engagementPenelitian ini bertujuan untuk menguji pengaruh penerapan model game-based learning terhadap student engagement pada mata pelajaran sejarah. Desain quasi experimental dengan model post-test-only , non-equivalent control-group design digunakan untuk memverifikasi pengaruh kedua variabel. Sampel terdiri dari 66 peserta didik pada kelas XI IPS 4 dan XI IPS 1 di SMA Negeri 1 Gambiran, yang diperoleh melalui uji homogenitas. Pengumpulan data menggunakan dokumentasi dan angket. Teknik analisis data menggunakan one-way anova dan uji lanjut LSD (Least Significant Difference) berbantuan software SPPS 22 for Windows. Hasil analisis data menunjukkan bahwa terdapat pengaruh penerapan model game-based learning terhadap student engagement pada mata pelajaran sejarah. Hasil uji one-way anova menunjukkan  probabilitas value  (sig.) pada kelompok eksperimen sebesar 0.040 0.05, dengan uji lanjut LSD sebesar 2,45455. Sehingga disimpulan bahwa terdapat pengaruh student engagement pada kelompok eksperimen yang dibelajarkan menggunakan model game-based learning. Rekomendasi penelitian ini adalah model game-based learning mampu menjadi acuan untuk meningkatkan student engagement, karena pembelajaran aktif, student-centered learning sehingga proses pembelajaran menjadi menyenangkan, interaktif, komunikatif, kolaboratif,  dan mampu memaksimalkan peran teknologi dalam pembelajaran.Keywords: Pendidikan 4.0, game-based learning, student engagement
Between Women, Throne, and Power: Religious Transformation in Kagaua Palu, 1600-1904
Authors: Nuraedah Nuraedah
Published: April 2023

This study examines the discourse of women, the throne, and power as a foundation for thinking that led to the transformation of religion in Kagaua Palu’s history from 1600 to 1904. Few studies on women reveal its connection with the change of Islam in Palu. This study uses a qualitative-historical method with heuristic stages, source criticism, interpretation, and historiography. The data sources for this research are colonial manuscripts, newspapers, and some utterances (oral information). The study shows that religious transformation drives tradition in Kagaua Palu to experience a shift, seen from the shifting matrilineal system to the patrilineal, even though this does not apply in general. In addition, the religious transformation has also led to a shift in local cultural awareness and the birth of a dynamic Islamic understanding that has opened the broadest possible access. In general, the To Kaili woman has become a pillar of the forerunner to the throne and power, accompanied by a religious transformation in Kagaua Palu. In conclusion, To Kaili women are essential in developing Palu Muslim society. That becomes a comparative narrative that erodes patriarchal nuances in Indonesian historiography.Keywords: Woman, Throne and Power, Religious Transformation, Kagaua PaluKajian ini mengkaji wacana perempuan, tahta, dan kekuasaan sebagai landasan pemikiran yang berujung pada transformasi agama dalam sejarah Kagaua Palu dari tahun 1600 hingga 1904. Beberapa kajian tentang perempuan mengungkap keterkaitannya dengan perubahan Islam di Palu. Penelitian ini menggunakan metode kualitatif-historis dengan tahapan heuristik, kritik sumber, interpretasi, dan historiografi. Sumber data untuk penelitian ini adalah manuskrip kolonial, surat kabar, dan beberapa ucapan (informasi lisan). Studi ini menunjukkan bahwa transformasi agama mendorong tradisi di Kagaua Palu mengalami pergeseran, terlihat dari pergeseran sistem matrilineal ke patrilineal, meskipun hal ini tidak berlaku secara umum. Selain itu, transformasi keagamaan juga telah menyebabkan terjadinya pergeseran kesadaran budaya lokal dan lahirnya pemahaman Islam yang dinamis sehingga membuka akses seluas-luasnya. Secara umum, perempuan To Kaili telah menjadi pilar cikal bakal tahta dan kekuasaan, disertai dengan transformasi agama di Kagaua Palu. Kesimpulannya, To Kaili perempuan sangat penting dalam membangun masyarakat Muslim Palu. Itu menjadi narasi komparatif yang mengikis nuansa patriarki dalam historiografi Indonesia.Kata kunci: Perempuan, Takhta dan Kekuasaan, Transformasi Keagamaan, Kagaua Palu
Unusual causes of hyperthyrotropinemia and differential diagnosis of primary hypothyroidism: a revised diagnostic flowchart
Authors: Campi Irene , Dell’Acqua Marco , Stellaria Grassi Elisa , Cristina Vigone Maria , Persani Luca
Published: April 2023

The clinical consequences of primary hypothyroidism include cardiovascular morbidity, increased mortality, and poor quality of life; therefore guidelines endorsed by several Scientific Societies recommend measuring circulating thyroid-stimulating hormone (TSH) in patients at risk. The assessment of serum TSH levels is also deemed to be the most robust and accurate biomarker during the management of replacement therapy in patients with a previous diagnosis of primary hypothyroidism. In line with a reflex TSH laboratory strategy, free thyroxine is measured only if the TSH falls outside specific cutoffs, in order to streamline investigations and save unjustified costs. This serum TSH-based approach to both diagnosis and monitoring has been widely accepted by several national and local health services; nevertheless, false-negative or -positive testing may occur, leading to inappropriate management or treatment. This review aims to describe several infrequent causes of increased circulating TSH, including analytical interferences, resistance to TSH, consumptive hypothyroidism, and refractoriness to levothyroxine replacement treatment. We propose a clinical flowchart to aid correct recognition of these various conditions, which represent important potential pitfalls in the diagnosis and treatment of primary hypothyroidism.
GENERATION UNIT COMMITMENT MIXED INTEGER LINEAR MODEL FOR SIMULTANEOUS HEAT AND ELECTRIC DAILY LOAD COVERING
Authors:   General Energy Institute of NAS of Ukraine, 172, Antonovycha St., Kyiv, 03150, Ukraine, Shulzhenko Sergii
Published: April 2023

The unit commitment problem nowadays is widely used in the electric power sector. The problem was first time formulated in the 1940-s and still developing both methodologically and by including an additional number of technologies each of which has a different unique mathematical treatment corresponding to the specific technology's behavior. The common characteristic of the problem such as that is dedicated to the electricity production sector, hence the mathematical formulation is following pure electricity sector transformation but during the last years the Power-to-X technologies are implemented and their further development is expected in the future. This requires the advancement or at least modification of the problem formulation to meet possible exchange and usage between different types of energy within one integrated power system. The goal of the article is to further development of the existing versions of the unit commitment problem, which are dedicated to the operation of the generation in the power system by implementing additional equations allowing contemplation of the heat energy-producing technologies which are dedicated to cover a heat-energy load of the district heating systems. This should allow for conducting comprehensive studies of the simultaneous operation of electric- and heat-generating technologies to meet the energy demand of local energy systems, which is important for designing distributed generation mix, for example at a municipal level. The proposed mixed integer linear generation unit commitment model for simultaneous heat and electric daily load covering is described in the article. The proposed model in addition to the pure electric power balance also meets heat load using only-heat technologies (fuel boilers), combined heat and power units, and also industrial-scale electric boilers - which are converting electricity to heat energy. Keywords: mixed integer linear model, unit commitment problem, integrated power system, electric boilers, power-to-X technologies, conventional electricity generating technologies.
Structural Racism in Behavioral Health Presentation and Management
Authors: Rainer Tyler , Lim Jamie K. , He Yuan , Perdomo Joanna , Nash Katherine A. , Kistin Caroline J. , Tolliver Destiny G. , McIntyre Elizabeth , Hsu Heather E.
Published: April 2023

Nia is a first-grade student with a history of trauma who was brought in by ambulance to the pediatric emergency department for “out of control behavior” at school. This is the first of multiple presentations to the emergency department for psychiatric evaluation, stabilization, and management throughout her elementary and middle school years. Several of the visits resulted in admission to the inpatient pediatric service, where she “boarded” while awaiting transfer to an inpatient psychiatric facility. At times, clinical teams used involuntary emergency medications and physical restraints, as well as hospital security presence at the bedside, to control Nia’s behavior. Nia is Black and her story is a case study of how structural racism manifests for an individual child. Her story highlights the impact of adultification bias and the propensity to mislabel Black youth with diagnoses characterized by fixed patterns of negative behaviors, as opposed to recognizing normative reactions to trauma or other adverse childhood experiences—in Nia’s case, poverty, domestic violence, and Child Protective Services involvement. In telling Nia’s story, we (1) define racism and discuss the interplay of structural, institutional, and interpersonal racism in the health care, education, and judicial systems; (2) highlight the impact of adultification bias on Black youth; (3) delineate racial disparities in behavioral health diagnosis and management, school discipline and exclusion, and health care’s contributions to the school-to-prison pipeline; and finally (4) propose action steps to mitigate the impact of racism on pediatric mental health and health care.
Dancing with Counterpreservation
Authors: Arboleda Pablo
Published: April 2023

The Tabacalera is a 30,000 sq m building located in Madrid city centre. Erected at the end of the eighteenth century, it originally functioned as a state-run tobacco factory until its closure in 2000. After ten years of abandonment, the Ministry of Culture leased part of the property to a series of local collectives to use as a “self-managed social centre”. Here, in an atmosphere characterised by repurposed decay and new informal accretions, all kinds of cultural and communal activities are held every day, including those of the Centro Revolucionario de Arqueología Social (CRAS, Revolutionary Centre for Social Archaeology). Between 2018 and 2020, I engaged with the social and organisational dynamics of the centre, exploring the motivations and aspirations of its various collectives and of other actors involved. Deploying Daniela Sandler’s notion of “counterpreservation” – the purposeful embracing of decay as a social and aesthetic act – this article suggests that, in just a decade, the centre has become an icon of free culture and libertarianism, acquiring a consistent heritage identity that is indissociable from its decaying materiality. This article also aims to examine how both social and aesthetic dimensions forge a joint resistance to potential institutional plans that may jeopardise the centre’s continuity.
Enzymatic hydrolysis of sea rough fish
Authors: Nhi Tran Thi Y , Le Thi Thanh Ha , Do Truong Thien
Published: April 2023

In this stuty, sea rough fish were hydrolyzed with alcalase/peptidase combined enzymes (EA/EP). Response surface methodology (RSM) was employed to optimize the EA/EP, hydrolysis time, hydrolysis temperature, and enzyme to substrate ratio (E/S) to obtain a high hydrolysis degree. The optimum RSM operating conditions were EA/EP of 2.9, temperature 55.8oC, incubation time of 4.9 h, and substrate concentration at 0.45 %. Under these conditions, DH value of 56.2 % was obtained. Raw materials proximate composition, amino acid content of the hydrolysate was also evaluated. The results indicated that sea rough fish contains potentially valuable fraction with high protein content and were successfully converted into hydrolysates rich in essential amino acids for potential recommendations in the supplementation of animal and human diets.
Green synthesis of graphene quantum dots from rice flour
Authors: Tran Quyen, Thi Bich , Huynh Phuong Thi Thuy , Ngo My, Nguyen Tra , Doan Thien, Van Hong , Luong Thanh, Huynh Vu , Tran Lan, Nguyen Phuong
Published: April 2023

Graphene Quantum Dots (GQDs) were successfully synthesized by a green and eco-friendly synthetic method using abundant and naturally available raw materials from rice flour. This study suggested and compared two aggressive approaches to fabricate GQDs, which are hydrothermal method at 170 °C for 8 h and microwave irradiation method at 900 W with a short reaction time of 30 min. The results showed that the hydrothermal method produced GQDs with better nanoparticle size and properties than the microwave irradiation method. Furthermore, the products were only GQDs, water and carbide precipitate, thus avoiding complicated post-processing steps. The synthesized GQDs were determined for their morphology by Transmission electron microscope (TEM) showing spherical nanoparticles with an average size of ~5-7 nm and ~10-14 nm for hydrothermal and microwave irradiation methods, respectively. Besides, these GQDs were also analyzed for their characterizations, morphologies and compositions by UV-vis, XRD and FTIR. Thanks to their low cytotoxicity, good optical stability, and excellent photo-luminescence property, GQDs have become novel nanostructured materials in many application fields from energy to biomedicine and environment such as sensors, bio-imaging, drug carriers, and solar cells.
Clinical presentation, histological findings, and prognosis in female dogs with mixed mammary neoplasms
Authors: Rauber D. , Gerardi D.G. , Oliveira L.O. , Vieira L.C. , Caprioli R.A. , Pavarini S.P. , Driemeier D. , Sonne L. , Nunes F.C. , Rodrigues A.C.B.
Published: April 2023

ABSTRACT The aim of this study was to describe the clinical and morphological characteristics of mixed mammary neoplasms and verify what characteristics affect the prognosis of female dogs with carcinomas in mixed tumors and carcinosarcomas. This was a retrospective study of 67 female dogs that underwent mastectomies and were diagnosed with benign mixed tumors (n=13), carcinomas in mixed tumors (n=44) and carcinosarcomas (n=10). Data regarding the clinical and histological aspects of the neoplasms were collected and the relation with specific survival times, and hazard ratios (HR) in 24 months was calculated. In univariate analysis, the diagnosis of carcinosarcoma (HR 8.26, p=0.006), carcinomatous areas with micropapillary or solid patterns (HR 17.49; p=0. 001) and lymph node metastasis (HR 7.07;p=0.020) were associated with specific survival. In multivariable analysis, only micropapillary or solid pattern (HR=16.34; p=0.007) remained independent factor associated with lower specific survival. Micropapillary or solid carcinomatous patterns were associated with shorter specific survival time (p=0.002) among animals with carcinomas in mixed tumors. Among the carcinosarcomas, lymph node metastasis (p=0.010) was associated with a shorter specific survival time. In conclusion, carcinomas in mixed tumors and carcinosarcomas vary in prognosis depending on the carcinomatous proliferation patterns and spread of the disease.
Urethral obstruction due to seminal vesiculitis in a sheep - case report
Authors: Rizzo H. , Cruz J.A.L.O. , Rocha L.L.L. , Ono M.S.B. , Coutinho L.C.A. , Mota R.A. , Silva Júnior V.A.
Published: April 2023

ABSTRACT We report a case of urethral obstruction due to seminal vesiculitis in a Dorper sheep, with symptoms of anuria, rectal prolapse, orchitis/epididymitis, and uroperitoneum and biochemical tests indicating severe azotemia. The animal died due to advanced azotemia, and necropsy revealed kidneys with cortical and medullary necrosis, pyelonephritis of renal calyces, hydronephrosis, ruptured and necrotic bladder, and vesicular, bulbourethral, and ampoule accessory sex glands. There was prostate hyperplasia that revealed a large amount of pus in the cross section, which was also observed bilaterally in the epididymis and right testis. Morphotintorial and biochemical analyses of bacteria obtained from microbiological culture revealed Corynebacterium sp. and Escherichia coli. Infection, hyperplasia, and abscessation of accessory sex glands caused urethral compression, resulting in an obstructive condition, similar to urolithiasis, in addition to bacteremia. Hyperplastic seminal vesiculitis, although rare, must be included among the differential diagnoses of obstructive processes in the urinary tract of sheep.
Ultrasonography of the stomach and small intestine in healthy Mangalarga Marchador horses from birth to 5 years of age
Authors: Pessoa G.O. , Botelho J.H.V. , Lacreta Junior A.C.C. , Ferrante M. , Sousa T.M. , Peconick A.P.
Published: April 2023

ABSTRACT The aim of the study was to describe location, sonographic characteristics and measures of the stomach and small intestine of equines at different ages. Abdominal ultrasonography was performed on 88 healthy equines of either sex, aged 1, 7 and 15 days, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11 months and 1, 3 and 5 years, with 20 animals per group. Location, characteristics and measurements of stomach, duodenum and jejunum were evaluated. Descriptive statistics were performed for each measurement and the percentile for each age was analyzed. The work showed the growth and characteristics of the organs evaluated over time. Adult animals showed a minimum of 4 duodenal movements per minute. It was possible to locate the organs evaluated in all animals. The detailed ultrasound examination of these organs allowed gathering information that could be used to assist in the care of future patients.
Cutaneous anaplastic large T-cell lymphoma in a cat - case report
Authors: Mazaro R.D. , Lorenzetti D.M. , Beckenkamp M.B. , Silva T.C. , Cogliati B. , Fighera R.A.
Published: April 2023

ABSTRACT Lymphoma is the most common lymphoproliferative disorder in cats. However, cutaneous lymphomas are uncommon in this species and can be classified as epitheliotropic or non-epitheliotropic. Epitheliotropic lymphomas are typically of T-cells and have tropism for epidermis and/or adnexal epithelium. Non-epitheliotropic lymphomas can be of either T-cell or B-cell and involve predominantly the dermis. The present study describes a case of multifocal cutaneous anaplastic large T-cell lymphoma. The skin nodules were multiple and variable in size, alopecic and erythematous in appearance and randomly distributed. Immunohistochemistry revealed positivity for the CD3 antigen, consistent with T-lymphocytes. This neoplasm should be remembered whenever multiple cutaneous nodules are observed in cats.
Influence of social media management practices on hotel performance
Authors: Pereira Nathália S. , Freitas Ana Augusta F.
Published: April 2023

Abstract Purpose: This paper aims to examine the influence of social media management practices on hotel performance. Originality/value: The hotel industry is undergoing organizational transformations due to the insertion of social media as a communication platform that engages customers. Given this, verifying whether social media can collaborate on internal resources and help the companies’ performance has been a potential source of studies. Design/methodology/approach: The study sample comprised 67 hotels. To this end, hotel managers conducted face-to-face interviews to collect data from their respective hotels. Data were collected using social media management practices and performance measures measured through RevPAR (a revenue division by total rooms available) and online review scores from Booking.com. Exploratory factor analysis and multiple regression analysis were applied to evaluate the study’s hypotheses from a quantitative approach. Findings: It was evidenced that social media management practices can be categorized into monitoring and comment responsing practices and the dimension of responsiveness and information dissemination practices. These practices positively influence hotel performance measured through online review scores and revenue measured through RevPAR. Given the results, it is expected that hotels will have competitive advantages by managing their resources with the help of social media and that studies in this sector will gain more visibility.
Influência das práticas de gerenciamento de mídias sociais no desempenho de hotéis
Authors: Pereira Nathália S. , Freitas Ana Augusta F.
Published: April 2023

Resumo Objetivo: Este artigo tem como objetivo examinar a influência das práticas de gerenciamento de mídias sociais no desempenho dos hotéis. Originalidade/valor: O setor hoteleiro está passando por algumas transformações gerenciais por causa da inserção das mídias sociais como plataformas de comunicação que envolvem os clientes. Diante disso, verificar se as mídias sociais podem colaborar nos recursos internos e ajudar no desempenho das empresas tem sido uma fonte potencial de estudos. Design/metodologia/abordagem: A amostra do estudo apresentou 67 hotéis. Para isso, foram realizadas entrevistas presenciais com gestores hoteleiros a fim de coletar os dados de seus respectivos hotéis. Coletaram-se dados sobre a utilização de práticas de gerenciamento de mídias sociais e sobre medidas de desempenho mensuradas por meio do RevPAR (divisão das receitas pelo total de quartos disponíveis) e das notas de avaliação on-line do site Booking.com. A partir de uma abordagem quantitativa, aplicaram-se as técnicas de análise fatorial exploratória e análise de regressão múltipla para avaliar as hipóteses do estudo. Resultados: Evidenciaram-se que as práticas de gerenciamento de mídias sociais podem ser categorizadas na dimensão de práticas de monitoramento e de resposta aos comentários, e na dimensão de práticas de responsividade e disseminação de informações. A utilização dessas práticas influencia positivamente no desempenho hoteleiro medido por meio de notas de avaliação on-line e nas receitas medidas por meio do RevPAR. Diante dos resultados, espera-se que os hotéis tenham vantagens competitivas ao gerenciarem seus recursos com a ajuda das mídias sociais e que estudos nesse setor ganhem mais visibilidade.
Do we inhabit the same mountain? Towards ontological openings in páramo conservation
Authors: Parra-Romero Adela , Estupiñán César Camilo Castillo
Published: April 2023

Abstract The biodiversity of the high Andean mountains has made it urgent to conserve the Páramos, which are recognized as essential ecosystems for the hydrological cycle and climate change mitigation. Colombia, which has 50% of these ecosystems in the world, has been cartographically delimiting the páramos since 2012 to promote their conservation. For the communities, the maps do not reflect the care work and practices with which they inhabit the páramo on daily life. Through ethnography and documentary review, we make an ontological analysis of the delimitation process and the conflicts it originated in the regions of Santurbán and Sumapaz. We argue that the environmental challenges faced by the high mountain demand the need for a reflexive conservation of its own ontology and to conduct environmental policy from an ontological openness that conceives the páramo as a permanent material composition of situated practices where different ways of making-world intervene.
Seasonality effect on the physiological and productive responses of crossbred dairy cows to the equatorial Amazon climate
Authors: Costa Dayana Alves da , Santos Vinícius Moreira dos , Oliveira Antônia Valcemira Domingos de , Souza Clebson Lucas de , Moreira Guilherme Rocha , Rosa Bruna Laurindo , Reis Eduardo Mitke Brandão , Queiroz Adriano Melo de
Published: April 2023

Abstract The objective of this study was to evaluate the seasonal effect of months of the year upon the physiological and productive responses of crossbred dairy cows raised in an Amazonian climate. Twenty lactating cows were evaluated, fed on Brachiaria decumbens pasture, with free access to water and mineral supplementation. Data from climate variables air temperature (AT), relative humidity (RH), rainfall (RA) and temperature and humidity index (THI) were recorded dur ing the months of January to April 2019. The physiological data collected were: respiratory rate (RR, mov/min), heart rate (HR, beats/min), rectal temperature (RT, ºC), udder surface temperature (UST, ºC), body surface temperature (BST, ºC), dorsum surface temperature (DST, ºC), front surface temperature (FST, ºC) and rear shin temperature (RST). Milk production (MP) was also measured. There was a significant difference (P<0.05) of RST and RR with values ranging from 34.8 to 35.5°C and 32.0 to 36.2 mov/min, respectively. There were no significant difference (P>0.05) for BST, and the values for MP and THI were 3.8; 3.8; 4.6; 4.1 kg and 77.7; 79.7; 80.6; 80.1, respectively. It was concluded that there was a seasonal effect of the months of the year evaluated on the respiratory rate of animals, however, it did not change the MP and the THI. The Amazon environment is conducive to causing thermal stress in lactating cows raised on pasture, requiring the use of shading to facilitate the ability of these animals to dissipate heat.
Sealing strategies in corn silage and sheep performance in feedlots
Authors: Scheidt Kácia Carine , Diaz Tatiana Garcia , Machado Juliana , Osmari Milene Puntel , Daniel João Luiz Pratti , Jobim Clóves Cabreira
Published: April 2023

Abstract The objective of this study was to evaluate the effects of different sealing strategies on aerobic stability and feed value of corn silage supplied to finishing lambs. The treatments were set up according to the silo sealing strategy: BP (black polyethylene film), BP + Bagasse (black polyethylene film + sugarcane bagasse) and BP + Silostop (Silostop® Orange oxygen barrier film + black polyethylene film). Six lambs per treatment were used, totaling 18 animals in an experimental period of 63 days. The silage from LP treatment presented the highest aerobic stability, however with lower dry matter digestibility coefficients. No significant differences were detected among treatments for intake and performance of lambs. But for final body weight, weight gain, daily average gain, feed efficiency and dry matter intake, the best results, in absolute value, were found for lambs fed with silage from LP + Bagasse treatment. The silage sealed exclusively with black polyethylene film showed greater aerobic stability. The different sealing strategies used in this experiment did not influence the performance of finishing Dorper x Santa Inês lambs.
Efeitos de estratégias de alimentação mista com diferentes relações de energia:proteína para juvenis de tilápia-do-Nilo (Oreochromis niloticus)
Authors: Litaiff Isabela , Moesch Samara , Sado Ricardo Yuji , Bicudo Álvaro José de Almeida
Published: April 2023

Resumo A avaliação das estratégias de alimentação é necessária para garantir a sustentabilidade da aquicultura. Este estudo avaliou o efeito de duas dietas com diferentes proporções de E:P (9,6 e 10,3 kcal de energia digestível por grama de proteína bruta) para juvenis de tilápia do Nilo. Foram avaliados o crescimento, uso da dieta e nutrientes, parâmetros econômicos, composição corporal e esteatose hepática de peixes. Não houve efeito significativo dos tratamentos sobre o crescimento, consumo de ração, conversão alimentar, uniformidade e sobrevivência dos peixes. O menor custo de ração (P>0,05) por biomassa ou 1000 unidades produzidas foi registrado nos juvenis de tilápia do Nilo alimentados com a dieta 10,3 kcal DE/g PB por sete dias. A contribuição do extrato etéreo no ganho de peso dos peixes foi reduzida (P=0,055) pela maior utilização da dieta 10,3 kcal DE/g PB nas estratégias de alimentação utilizadas. A mesma tendência foi observada nos níveis de lipídios corporais em peixes. Os índices corporais foram semelhantes (P>0,05) entre os peixes dos diferentes tratamentos. A mistura de dietas com diferentes relações E:P em um protocolo de alimentação semanal não prejudica o desempenho produtivo de juvenis de tilápia do Nilo. No entanto, considerando os custos de alimentação, a recomendação é fornecer uma dieta com 33% PB e 3,4 kcal/DE por sete dias por semana.
Observação do Comportamento Comunicativo: protocolo atualizado de 0 a 72 meses
Authors: Ferreira-Vasques Amanda Tragueta , Rocha Eduardo Pimentel da , Lamônica Dionísia Aparecida Cusin
Published: April 2023

RESUMO Objetivo: descrever a atualização do protocolo Observação do Comportamento Comunicativo na faixa etária de 0 a 72 meses. Métodos: a Observação do Comportamento Comunicativo foi revisada e atualizada, com inserção de marcos do desenvolvimento infantil em suas diversas áreas, tornando-se um instrumento de triagem do desenvolvimento infantil. Resultados: o protocolo contempla 188 itens, distribuídos em 10 faixas etárias: de zero a 72 meses. Os itens foram organizados da seguinte forma: de zero a 12 meses, divididos por trimestre (quatro faixas etárias); de 12 a 24 meses, por semestre (duas faixas etárias); e, de 24 a 72 meses, divididos por ano (quatro faixas etárias). Os itens contemplam as áreas do desenvolvimento infantil e seus principais marcos. A pontuação é registrada no próprio protocolo, atribuindo a análise da resposta em 0 - não realiza a ação ou comportamento; 1 - realiza de maneira atípica, restrita ou está em aquisição; 2 - realiza adequadamente a ação/comportamento. São necessários poucos materiais para aplicação e ambiente estruturado. Conclusão: o protocolo Observação do Comportamento Comunicativo traz impacto direto na avaliação inicial de crianças com ou sem suspeita de atraso no desenvolvimento infantil e deve ser utilizado por profissionais da saúde, no acompanhamento do desenvolvimento infantil típico (rotina) ou em casos em que a criança recebe estimulação específica.
Morphological responses of maize hybrids under competition with hairy beggarticks
Authors: Galon Leandro , Silva Antônio M. L. da , Brunetto Leonardo , Melo Thais S. , Dill Jaqueline M. , Concenço Germani
Published: April 2023

ABSTRACT The study of competitive interactions between crops and weeds can be an important tool in integrated weed management. The objective of this work was to evaluate the competitive ability of maize hybrids in the presence of hairy beggarticks, testing different proportions of plants in the associations. For maize hybrids (Dekalb 230 PRO3, Pioneer 30F53 VYH, Brevant 2B433 PW, and Syngenta 505 VIP3) and for hairy beggarticks, the final density was 20 individuals pot-1, which was determined in preliminary experiments. Experiments were carried out on a substitutive series, on different combinations of the species, varying the relative proportions (100:0, 75:25, 50:50, 25:75, and 0:100%). The analysis of species competitiveness was performed using diagrams applied to the substitutive experiments and relative competitiveness indices. The maize hybrids showed less loss when reducing the morphological variables of the hairy beggarticks and demonstrated superiority in competitive ability in relation to the weed. Competition occurred between maize hybrids in the presence of hairy beggarticks, being negatively affected, regardless of the proportion of plants, causing reductions in plant height, stem diameter, leaf area, and dry mass. An average reduction of 10% and 86% of the MS of maize hybrids and weed was observed, respectively, when comparing the absence of competition with any associated densities, intraspecific competition being more harmful than interspecific. Maize hybrids and hairy beggarticks compete for the same environmental resources, with the crop being more competitive than the competitor.
Nutritional content of pastures with phosphate fertilization in 2 calcareous soils
Authors: Caballero Enrique M. C. , Durango Elisa M. P. , Pérez-Polo Dairo J.
Published: April 2023

ABSTRACT Alkaline soils present large amounts of calcium carbonates, with precipitation of insoluble calcium phosphate. The objective of the research was to determine the effects of the P application on the nutrient levels of the foliar tissue of Pennisetum pastures in calcareous soils in Córdoba-Colombia. Soil samples were collected from two locations in the Department of Córdoba. A completely randomized design with a 2 x 3 x 6 factorial arrangement (Vista Hermosa and Carolina), there Pennisetum species (king grass, Cuba OM-22, and Pennisetum purpureum), and six P doses (0, 80, 150, 250, 400, and 650 kg ha-1), applied as P2O5, was used. The addition of P did not increase the contents of N, K, Ca, and Mg in the king grass, Pennisetum purpureum, and Cuba OM-22 pastures. However, in the calcareous soils of Carolina, king grass, Pennisetum purpureum, and Cuba, OM-22 absorbed higher amounts of P.
Sample size to evaluate the degree of multicollinearity in rye morphological traits
Authors: Neu Ismael Mario Márcio , Cargnelutti Filho Alberto , Toebe Marcos , Carini Fernanda , Pezzini Rafael Vieira , Silveira Daniela Lixinski
Published: April 2023

ABSTRACT Investigation of multicollinearity allows parameters in multivariate analysis to be estimated with higher precision and with biological interpretation. In order to generate reliable estimates of the degree of multicollinearity, it is necessary to use appropriate sample size. Thus, the objectives of this study were to determine the sample size (number of plants) necessary to estimate the indicators of the degree of multicollinearity - condition number (CN), correlation matrix determinant (DET), and variance inflation factor (VIF) - in morphological traits of rye and to verify the variability of the sample size between the indicators. Five and three uniformity trials were conducted with the cultivars BRS Progresso and Temprano, respectively. Eight morphological traits were evaluated in 780 plants in eight trials. For each trial, 22 cases were selected among the 28 formed by the combination of eight traits, taken six by six, totaling 176 cases. In each case, 197 sample sizes were planned (20, 25, 30, ..., 1,000 plants) and in each size 2,000 resampling procedures with replacement were performed, CN, DET, and VIF were determined and the average among 2,000 estimates was calculated. For each case and indicator (CN, DET, and VIF), the sample size was determined through three models: modified maximum curvature method and linear and quadratic segmented models with plateau response. There is variability between sample sizes between indicators, with larger sample sizes required for DET, followed by CN and VIF, in that order, with at least 180, 116 and 85 plants, respectively.
O Desafio do Ensino Remoto com Idosos durante a Pandemia de Covid-19
Authors: Andrade Saulo José Veloso de , Silva Eduardo Jorge Lopes da , Scortegagna Paola Andressa
Published: April 2023

RESUMO Este artigo objetivou discutir os desafios enfrentados pelos docentes da Educação de Jovens e Adultos (EJA), do município de João Pessoa/PB, para ensinar idosos durante a pandemia de covid-19. Adotou-se o método qualitativo e coletou-se informações, através do uso de questionário no formato virtual do Google Forms, de 10 professores. Eles foram examinados a partir da Análise Crítica do Discurso (ACD). Os resultados revelaram as dificuldades que os professores enfrentam em lidar com o ensino remoto, sobretudo com idosos, uma vez que tal parcela populacional possui suas deficiências tecnológicas e não está acostumada com esse formato de ensino.
Between Work and School: life course of poor young people
Authors: Brenner Ana Karina , Carrano Paulo Cesar Rodrigues
Published: April 2023

ABSTRACT The article describes and presents data from field research carried out with young high school students in the Youth and Adult Education modality from 14 state schools in the city of Rio de Janeiro. The analyzed data are the result of three research methodologies: survey, narrative interviews and photographic devices for self-narrating. The youngsters in the research reveal that returning to school occurs as they rediscover the meaning of schooling in their projects to improve living conditions. Work and school establish mutual influences and, for these young people, they are not self-excluding situations, they overlap to constitute the experience of a working popular young person.