bluuebunny/crossref_metadata_2025 huggingface dataset:
If I’m not Streaming, I’m not Earning: Audience Relations and Platform Time on Douyin
Authors: Fung Anthony , Ismangil Milan , He Wei , Cao Shule
Published: June 2022

Purpose

This article explores how platforms reorganize our sense of everyday life. The platformization of everyday life means a changing relation to what we do in our daily lives, not only in China, but in every country in which digital platforms are becoming more relevant by the day. Using TikTok in China as our point of departure, we discuss the role of platform time and the abstracted audience.

Design/methodology/approach

This study is a collaboration between Douyin of ByteDance, whose headquarters are in Beijing, and a team of researchers. Users with more than 10,000 followers were identified so as to select users who had sufficient activities and strong motivation to operate their short video channel. A survey questionnaire was sent to these users during one week in July 2019, and 2375 users responded to the survey. For this paper, after briefly reading the survey results, we selected 50 users for in-depth interviews. The users gave their consent to disclose their identity. In the process, ByteDance helped contact these users.

Findings

Based on the data, we discuss two concepts, abstract audiences and platform time, which helped us to understand platform–labor relations. We argue that while there is the illusion that audiences are closer than ever to the content creator in terms of engagement, at the same time, they are abstracted through platform analytics, meaning that they are reduced to statistics provided to content creators.

Originality/value

Rather than being liberated, creators are restricted by a new form of time that offers the possibilities of freedom within the confines of the platform. Rather than having fixed working hours, creators are self-regulating as streaming hours and upload times demand certain patterns to increase one’s following and make a living, while as creators, they must also try to understand their audience and the platform algorithm.
Sublethal effects of acrylamide on thyroid hormones, complete blood count and micronucleus frequency of vertebrate model organism (Cyprinus carpio)
Authors: Erkmen Belda , Günal Aysel Caglan , Polat Hüseyin , Erdoğan Kenan , Civelek Hilal , Erkoç Figen
Published: June 2022

Objectives

Acrylamide, a widely used chemical in industry, clinical laboratory and waste treatment plants, is considered a carcinogen in humans. The present study examined the hormonal, hematologic, and genotoxic responses in the invertebrate model common carp Cyprinus carpio after exposure to sublethal acrylamide.

Methods

Fish were exposed to acrylamide at 10 and 50 mg/L for 96 h, along with the respective control group. Serum levels of cortisol and thyroid hormones were measured using diagnostic ELISA direct immunoenzymatic kits. For micronucleus (MN) frequency assay, thin smears of the peripheral blood of fish were prepared.

Results

Serum levels of cortisol in both treatment groups considerably increased, which proposed that acrylamide caused a stress reaction of acrylamide exposed fish (p<0.05). Fish demonstrated significant decreases in triiodothyronine (T3), free thyroxine (FT4), and free triiodothyronine (FT3) concentrations in a dose-dependent manner after acrylamide exposure (p<0.05). However, serum thyroxine (T4) concentrations did not alter significantly in the treatment groups. Mean MN frequencies of fish erythrocytes increased significantly in acrylamide exposed groups suggesting that acrylamide is genotoxic in common carp (p<0.05). The hematocrit, hemoglobin, and erythrocyte numbers of carp increased significantly in exposure groups (p<0.05).

Conclusions

These results suggested that acrylamide can significantly affect the hemopoietic system. Furthermore, this study confirmed that the widespread use of acrylamide, even in sublethal concentrations, could affect the survival of non-target organisms, especially fish, in aquatic environments.
Eight Years of Research Advances in Bourbon Virus, a Tick-borne Thogotovirus of the Orthomyxovirus Family
Authors: Hao Siyuan , Ning Kang , Küz Çağla Aksu , McFarlin Shane , Cheng Fang , Qiu Jianming
Published: June 2022

Bourbon virus (BRBV) was first isolated from a blood sample collected from a male patient living in Bourbon County, Kansas, during the spring of 2014. The patient later died because of complications associated with multiorgan failure. Several deaths due to BRBV infection have since been reported in the United States, and misdiagnosed cases are often undercounted. BRBV is a member of the genus Thogotovirus of the Orthomyxoviridae family, and is transmitted through the Lone Star tick, Amblyomma americanum, in North America. Currently, no specific antiviral agents or vaccines are available to treat or prevent BRBV infection. Several small-molecular compounds have been identified to effectively inhibit BRBV infection of in vitro cell cultures at the single- or sub-micromolar level. Favipiravir, an RNA-dependent RNA polymerase inhibitor, has been found to prevent death in type I interferon receptor knockout mice with BRBV infection.
Visual System Hyperexcitability and Compromised V1 Receptive Field Properties in Early-Stage Retinitis Pigmentosa in Mice
Authors: Leinonen Henri , Lyon David C. , Palczewski Krzysztof , Foik Andrzej T.
Published: June 2022

Inherited retinal degenerative diseases are a prominent cause of blindness. Although mutations causing death of photoreceptors are mostly known, the pathophysiology downstream in the inner retina and along the visual pathway is incompletely characterized in the earliest disease stages. Here, we investigated retinal, midbrain and cortical visual function using electroretinography (ERG), the optomotor response (OMR), visual evoked potentials (VEPs), respectively, and single unit electrophysiology at the primary visual cortex (V1) in light-adapted juvenile (approximately one-month-old) and young adult (three-month-old)RhoP23H/WTmice, representative of early-stage retinitis pigmentosa (RP). Photopic ERG revealed up to ∼30% hypersensitivity to light inRhoP23H/WTmice, as measured by the light intensity required to generate half-maximal b-wave (I50parameter).RhoP23H/WTmice also showed increased OMRs toward low spatial frequency (SF) drifting gratings, indicative of visual overexcitation at the midbrain level. At the V1 level, VEPs and single-cell recordings revealed prominent hyperexcitability in the juvenileRhoP23H/WTmice. Mean VEP amplitudes for light ON stimuli were nearly doubled in one-month-oldRhoP23H/WTmice compared with controls, and more than doubled for light OFF. Single-cell recordings showed a significantly increased spontaneous V1 neuron firing in theRhoP23H/WTmice, and persistent contrast and temporal sensitivities. In contrast, direction selectivity was severely compromised. Our data suggest that during early RP, the visual pathway becomes hyperexcited. This could have both compensatory and deleterious consequences for visual behavior. Further studies on the mechanisms of hyperexcitability are warranted as this could lead to therapeutic interventions for RP.
Enhancement of Motor Cortical Gamma Oscillations and Sniffing Activity by Medial Forebrain Bundle Stimulation Precedes Locomotion
Authors: Yoshimoto Airi , Shibata Yusuke , Kudara Mikuru , Ikegaya Yuji , Matsumoto Nobuyoshi
Published: June 2022

The medial forebrain bundle (MFB) is a white matter pathway that traverses through mesolimbic structures and includes dopaminergic neural fibers ascending from the ventral tegmental area (VTA). Since dopaminergic signals represent hedonic responses, electrical stimulation of the MFB in animals has been used as a neural reward for operant and spatial tasks. MFB stimulation strongly motivates animals to rapidly learn to perform a variety of behavioral tasks to obtain a reward. Although the MFB is known to connect various brain regions and MFB stimulation dynamically modulates animal behavior, how central and peripheral functions are affected by MFB stimulation per se is poorly understood. To address this question, we simultaneously recorded electrocorticograms (ECoGs) in the primary motor cortex (M1), primary somatosensory cortex (S1), and olfactory bulb (OB) of behaving rats while electrically stimulating the MFB. We found that MFB stimulation increased the locomotor activity of rats. Spectral analysis confirmed that immediately after MFB stimulation, sniffing activity was facilitated and the power of gamma oscillations in the M1 was increased. After sniffing activity and motor cortical gamma oscillations were facilitated, animals started to move. These results provide insight into the importance of sniffing activity and cortical gamma oscillations for motor execution and learning facilitated by MFB stimulation.
A multifunctional locus controls motor neuron differentiation through short and long noncoding RNAs
Authors: Carvelli Andrea , Setti Adriano , Desideri Fabio , Galfrè Silvia Giulia , Biscarini Silvia , Santini Tiziana , Colantoni Alessio , Peruzzi Giovanna , Marzi Matteo Jacopo , Capauto Davide , Di Angelantonio Silvia , Ballarino Monica , Nicassio Francesco , Laneve Pietro , Bozzoni Irene
Published: June 2022

The transition from dividing progenitors to postmitotic motor neurons (MNs) is orchestrated by a series of events, which are mainly studied at the transcriptional level by analyzing the activity of specific programming transcription factors. Here, we identify a post‐transcriptional role of a MN‐specific transcriptional unit (MN2) harboring a lncRNA (lncMN2‐203) and two miRNAs (miR‐325‐3p and miR‐384‐5p) in this transition. Through the use of in vitro mESC differentiation and single‐cell sequencing of CRISPR/Cas9 mutants, we demonstrate that lncMN2‐203 affects MN differentiation by sponging miR‐466i‐5p and upregulating its targets, including several factors involved in neuronal differentiation and function. In parallel, miR‐325‐3p and miR‐384‐5p, co‐transcribed with lncMN2‐203, act by repressing proliferation‐related factors. These findings indicate the functional relevance of the MN2 locus and exemplify additional layers of specificity regulation in MN differentiation.
Cooperative amyloid fibre binding and disassembly by the Hsp70 disaggregase
Authors: Beton Joseph George , Monistrol Jim , Wentink Anne , Johnston Erin C , Roberts Anthony John , Bukau Bernd Gerhard , Hoogenboom Bart W , Saibil Helen R
Published: June 2022

Although amyloid fibres are highly stable protein aggregates, a specific combination of human Hsp70 system chaperones can disassemble them, including fibres formed of α‐synuclein, huntingtin, or Tau. Disaggregation requires the ATPase activity of the constitutively expressed Hsp70 family member, Hsc70, together with the J domain protein DNAJB1 and the nucleotide exchange factor Apg2. Clustering of Hsc70 on the fibrils appears to be necessary for disassembly. Here we use atomic force microscopy to show that segments of in vitro assembled α‐synuclein fibrils are first coated with chaperones and then undergo bursts of rapid, unidirectional disassembly. Cryo‐electron tomography and total internal reflection fluorescence microscopy reveal fibrils with regions of densely bound chaperones, preferentially at one end of the fibre. Sub‐stoichiometric amounts of Apg2 relative to Hsc70 dramatically increase recruitment of Hsc70 to the fibres, creating localised active zones that then undergo rapid disassembly at a rate of ~ 4 subunits per second. The observed unidirectional bursts of Hsc70 loading and unravelling may be explained by differences between the two ends of the polar fibre structure.
Role of glucocorticoid metabolism in childhood obesity-associated hypertension
Authors: Finken Martijn J J , Wirix Aleid J G , von Rosenstiel-Jadoul Ines A , van der Voorn Bibian , Chinapaw Mai J M , Hartmann Michaela F , Kist-van Holthe Joana E , Wudy Stefan A , Rotteveel Joost
Published: June 2022

Objective

Childhood obesity is associated with alterations in hypothalamus–pituitary–adrenal axis activity. We tested the hypothesis that multiple alterations in the metabolism of glucocorticoids are required for the development of hypertension in children who become overweight.

Methods

Spot urine for targeted gas chromatography-mass spectrometry steroid metabolome analysis was collected from (1) overweight/hypertensive children (n  = 38), (2) overweight/non-hypertensive children (n  = 83), and (3) non-overweight/non-hypertensive children (n  = 56).

Results

The mean (± s.d.) age of participants was 10.4 ± 3.4 years, and 53% of them were male. Group 1 and group 2 had higher excretion rates of cortisol and corticosterone metabolites than group 3 (869 (interquartile range: 631–1352) vs 839 (609–1123) vs 608 (439–834) μg/mmol creatinine × m2 body surface area, P < 0.01, for the sum of cortisol metabolites), and group 1 had a higher excretion rate of naive cortisol than group 3. Furthermore, groups differed in cortisol metabolism, in particular in the activities of 11β-hydroxysteroid dehydrogenases, as assessed from the ratio of cortisol:cortisone metabolites (group 2 < group 3), 5α-reductase (group 1 > group 2 or 3), and CYP3A4 activity (group 1 < group 2 or 3).

Discussion

The sequence of events leading to obesity-associated hypertension in children may involve an increase in the production of glucocorticoids, downregulation of 11β-hydroxysteroid dehydrogenase type 1 activity, and upregulation of 5α-reductase activity, along with a decrease in CYP3A4 activity and an increase in bioavailable cortisol.
Aporte ambiental de la planta de tratamiento de aguas residuales Los Tajos en la remoción de contaminantes fisicoquímicos y microbiológicos
Authors: Mora-Aparicio Carmen , Alfaro-Chinchilla Carolina , Pérez-Molina Junior Pastor , Vega-Guzmán Ilena
Published: June 2022

El objetivo del estudio fue analizar el aporte ambiental hacia la calidad del río Torres considerando la remoción de contaminantes fisicoquímicos y microbiológicos de la planta de tratamiento de aguas residuales (PTAR) Los Tajos. Se realizó el análisis de datos fisicoquímicos y microbiológicos de las aguas de afluente y efluente de la PTAR (DBO, DQO, SST, STT, N-NH4+, P-PO43-, GyA, SAAM y coliformes fecales principalmente) y se analizó la variación en concentración de contaminantes en el río Torres previo y posterior a la construcción de la PTAR, que realiza un tratamiento primario a las aguas, todo asociado a la estacionalidad. Los datos se analizaron en R versión 3.6.1. Según la metodología del índice holandés, el río Torres se clasificó severamente contaminado previo a la construcción de la PTAR, y actualmente aumenta su grado de contaminación después de la descarga de la PTAR, principalmente en época lluviosa. La PTAR presenta remoción significativa para siete de los ocho parámetros analizados, los porcentajes de remoción más representativos son: SST (68.5 %), DBO (49.8 %) y GyA (54.7 %). Se demostró el aporte cuantitativo de la PTAR al río Torres removiendo toneladas de contaminantes de las aguas residuales desde el 2015 hasta el 2020, principalmente DQO (26,791.8 Mg), SST (24,162.6 Mg), DBO (12,290.0 Mg) y STT (30,267.7 Mg). Finalmente se dejó en evidencia la necesidad de construir las siguientes etapas de la PTAR que incluyen tratamiento secundario, que mejoraría la remoción de materia orgánica, surfactantes y nutrientes.
Revisión sobre la síntesis de grafeno por exfoliación en fase líquida: Mecanismos, factores y técnicas
Authors: Galindo-Uribe Carlos Daniel , Calaminici Patrizia , Solorza-Feria Omar
Published: June 2022

El objetivo del presente trabajo es crear un consenso acerca del método de exfoliación en fase líquida (LPE) para la producción de grafeno y, a su vez, conocer las causas y los diversos factores que afectan el rendimiento y la calidad del grafeno obtenido. Para lograr este objetivo, se realiza una revisión bibliográfica sistemática usando el buscador de Google Académico por la extensión de su acervo. En el presente escrito los resultados obtenidos de esta revisión bibliográfica exhaustiva de la LPE de grafeno se ordenan de acuerdo con su relevancia, dando prioridad en conocer las causas y los fenómenos físicos claves relacionados con la LPE. Los artículos centrados en entender los fenómenos físicos y químicos que gobiernan la LPE fueron clasificados en la sección mecanismo, con el fin de tener una mejor comprensión del fenómeno a nivel molecular. Con esta información, se propone una clasificación de acuerdo con las técnicas más comúnmente usadas (sonicación, microfluídica, etc) para lograr un consenso sobre las técnicas que se clasifican dentro del método de LPE de grafeno con base en el mecanismo, lo que da pauta al desarrollo de nuevas técnicas que mejoren significativamente el desempeño de este método. De la revisión sistemática se concluye que el método de exfoliación en fase líquida es un método robusto, atractivo para la industria, de fácil escalabilidad y de alto rendimiento en general dependiendo de las técnicas de preparación.
Bio-based epoxy resins from biorefinery by-products
Authors: Ortiz Pablo , Wiekamp Martijn , Vendamme Richard , Eevers Walter
Published: June 2022

In the transition from petrol to bio-based chemicals, the total utilization of the components from biomass during the biorefinery process can be regarded as the key to its success. Currently, the lignin obtained from the biomass during the pulping of wood is burned; however, this component has the potential to be an alternative to petroleum for producing aromatic feedstocks. Additionally, glycerol is a by-product of biodiesel production. In this work, epoxy resins were synthesized from these two components in an environmentally compatible process using water as the reaction medium (as opposed to organic solvents). Base-catalyzed depolymerized lignin, the only depolymerized lignin available at a multi-kilogram-scale, was chosen as the lignin source. This depolymerized lignin acts as the curing agent for glycerol, which results in entirely bio-based resins. Depolymerized lignin imparts rigidity to the resins, and the glass transition temperature (Tg) increased as the lignin content of the resin increased. Thermogravimetric analysis (TGA) data showed that the resins had a relatively high thermal stability with the onset of thermal degradation starting at 281 °C.
Guide for the Design of Prestressed Concrete Poles
Authors:   PCI Committee on Prestressed Concrete Poles,   ASCE Task Force on Concrete Poles
Published: June 2022

This document provides guidelines for the design, manufacture, testing, installation and erection of prestressed concrete poles. Both spun-cast and statically cast poles are considered, including cantilevered, guyed, framed and combined structures.
Predictors of young adults’ movement capability in physical activity
Authors: Garcia Marino A.
Published: June 2022

Background And Study Aim. The purpose of the study is to identify the predictors of the movement capability of the individuals in physical activity.

Materials and Methods. Quantitative descriptive predictive method was employed in identifying the significant relationship of the identified factors that can predict movement capability in physical activity. There were 263 participants in the study from one of the Higher Educational Institutions in Cebu City, Philippines which were randomly sampled using Raosoft Sample Size Calculator. Experts validated research instruments were used and data gathered were analyzed using descriptive (percentile, mean, standard deviation) and inferential statistics (multiple regression).

Results. Findings revealed that only three factors: blood type, attitude towards physical activity, and perceived action – scaled affordance were predictors of movement capability and five movement dimensions were influenced by blood type, attitude towards physical activity, and perceived action – scaled affordance. Thus, blood type is predictor to flexibility, accuracy, speed and endurance. On the other hand, attitude towards physical activity is predictor of endurance. While, perceived action – scaled affordance is predictor of strength, accuracy and endurance.

Conclusions. It was concluded that a person’s capability to engage in physical activity is contributed by biological factors (blood type) and psychological factors (attitude and perceived action-scaled affordance). It is recommended that validation study be conducted to strengthen the claims of the identified factors to movement capability of an individual.
Development of balance training program to improve balance control among Malaysian sports schools athletes
Authors: Lee Ai Choo , Sankaravel Mohansundar , Hossein Abadi Fariba , Zainudin Fairus Fariza
Published: June 2022

Background and Study Aim. Complex sports specific movements often require balance ability. This is accountable for injury prevention as well. Balance control is vital to athletes for all sports activities. It is the objective of the current study to develop and identify balance training program effectiveness in improving dynamic balance among athletes in Malaysian National Sport Schools.

Material and Methods. This study used a true experimental with control group design, involved dynamic balance control measures before and after intervention. A total of 72 male and female athletes were randomly assigned into experimental group or control group after screening process for eligibility. The experimental group underwent 12 sessions of balance training program and the control group continued their usual training routine. The Y-Balance Test was utilized to quantify dynamic balance for both groups. Data was analyzed using independent and paired sample t-test.

Results. The study finding indicated that the experimental group demonstrated significant improvement in the post-test compared to pre-test (p = 0.000, p < 0.001) but no significant changes happened to control group (p = 0.353, p > 0.05). Independent t-test showed during post-test, the experimental group attained better score compared to the control group (p = 0.000, p < 0.001).

Conclusions. It is suggested that coaches and athletes may include this balance training program in their training regimen, hoping to help in improving dynamic balance, thus, to reduce risk of lower extremity injuries. Future studies are suggested to increase more variances of balance training and make comparison on their effectiveness as a way to obtain a more effective training program.
Discrimination of South American grains based on fatty acid
Authors: Ferreira Daniela Souza , Barbosa Rocha Júlio Cesar , Arellano Daniel Barrera , Lima Pallone Juliana Azevedo
Published: June 2022

This study developed a method for discriminating between Andean indigenous crops and hybrid crops, using total lipid composition, fatty acid profiles, and statistical comparison. Cluster analysis and Principal Component Analysis (PCA) revealed the standard fingerprints of the gas chromatography-FID and the primary fatty acids related to loadings, which shows the explained variance (91.4–99.5%) of the total 32 cultivars, including quinoa (Chenopodium quinoa), amaranth (Amaranthus), and triticale (X Triticosecale), collected from Brazil, Bolivia, Peru, and Argentina. The primary fatty acids found in quinoa, amaranth, and triticale were linoleic (essential PUFA) (36.59–63.04 g 100 g−1), oleic (11.95–36.95 g 100 g−1), and palmitic (essential MUFA) (9.40–20.20 g 100 g−1). All grains presented four groups with the PCA method, with the exception of amaranth, with three groups. Analysed separately, linoleic and eicosenoic acids are related to quinoa; stearic and palmitic acids to amaranth; and linolenic and oleic acids to triticale.
On the hyperbolic Horadam matrix functions
Authors: BAHŞİ Mustafa , MERSİN Efruz Özlem
Published: June 2022

In this study, we introduce a new class of the hyperbolic matrix functions which are called symmetrical hyperbolic Horadam sine and cosine matrix functions and we present some hyperbolic and recursive properties of these new matrix functions. In addition, we introduce quasi-sine Horadam matrix function and also define the matrix form of the metallic shofars that related to the hyperbolic Horadam sine and hyperbolic Horadam cosine matrix functions.
Acts of Planning in Administration: Towards Support for the Development of the Social Economy
Authors: Szmigiero Maciej
Published: June 2022

Background: Public planning plays an increasingly important role as planning acts issued by the administration  form the basis for the actions of public authorities, including determining the directions of legislative activity. Therefore, they are the subject of interest in the doctrine of public law. 

Research objectives: The aim of this paper is to explore selected governmental development policy documents assessed from the point of view of social economy development in order to show both their complexity and the range of their subject matter. The issue of theoretical foundations of planning in administration and their scope was also taken into account.. 

Research design and methods: The research method used in the study is the legal-dogmatic method and the theoretical-legal method. 

Results: Findings of the study expose that although in selected government strategic documents reference is made to social economy issues, due to the exclusively internal nature of planning acts and the overly general provisions of the analysed strategies, they can hardly provide a basis for coordinated action. 

Conclusions: The study identifies a need for greater precision in the provisions so that they can become a basis for specific actions by the administration, including drafting of legislation.
Rebuild Trust or Stigmatize Unfair Practices: How Can Consumer Protection Institutions Shape Pro-social Attitudes of Banks
Authors: Stopczyński Andrzej R. , Ziemba Marika
Published: June 2022

Background: One of the problems visible on the financial market is the crisis of social trust institutions. Consumers of financial services should be protected, but inadequate protection has negative consequences for consumers themselves, but also for the functioning and stability of the market.Research objectives: The aim of the study was to examine whether by analysing consumer decision making mechanisms, a path towards improving mutual trust between consumers and financial service providers can be identified.Research design and methods: Based on the data obtained in the CAWI survey, an analysis of social preferences and protection of consumers of financial services (in the light of Ajzen’s Theory of Planned Behaviour) was carried out on a group of 200 respondents.Results: Social norms are the main determinant of consumer behaviour in the financial market, and therefore consumer norms need to be changed. Social norms can be changed by attitudes, but the process is long and requires the efforts of all market participants. Although the road to rebuilding trust by changing social norms seems long, the direction looks right.Conclusions: Institutional protection (understood both as requirements for banks and consumer financial education and rights) is not sufficient to ensure effective protection of consumers of financial services. An important pillar of this protection is also trust between consumers and financial institutions. This trust should be built on both sides and linked to a change in acceptable social norms.
A Novel Approach to Assessing the Quality of Coach-Athlete Relationships: Can the Coach-Athlete Relationship Be Evaluated for Motivational Support by Analysis of Published Coach Interviews?
Authors:   ,   Portland State University, Evans Nikia
Published: June 2022

The aim of this paper is to present a novel methodology to be used in evaluating the quality of the coach-athlete relationship in line self-determination theory and based on the motivational model of the coach-athlete relationship proposed by Mageau and Vallerand. This paper consists of a review of the extant literature surrounding self-determination theory as applied to sports, followed by a pilot study testing the proposed new methodology. The methodology utilizes existing coach interviews conducted by institution media to evaluate the language used by NCAA D1 soccer coaches in reference to their teams. The findings of the study serve to aid the development of the new methodology and provide direction for future use in answering the following question: Does the quality of the coach-athlete relationship predict team success within NCAA D1 women’s soccer?
Factors associated with stress, anxiety and depression in nursing professionals in the hospital context
Authors: Assis Bianca Bacelar de , Azevedo Cissa , Moura Caroline de Castro , Mendes Patrick Gonçalves , Rocha Larissa Lucas , Roncalli Aline Alves , Vieira Nayara Ferreira Mota , Chianca Tânia Couto Machado
Published: June 2022

ABSTRACT Objective: to determine the factors associated with stress, anxiety and depression, concomitantly, in nursing professionals who work in the hospital context. Methods: a quantitative and cross-sectional study with 353 nursing professionals from a hospital. A sociodemographic questionnaire and the Depression, Anxiety and Stress Scale-21 were used. Data were subjected to descriptive statistical analysis, difference and correlation tests. Results: the main factors associated with stress, anxiety and depression, concomitantly, were being female, compromised family and social support, lack of autonomy at work, hostile relationship with colleagues, lack of professional recognition and satisfaction, feeling of being overwhelmed and insecurity. Conclusions: demographic, physiological, social and work factors impact the levels of stress, anxiety and depression in nursing professionals. The adoption of coping strategies for modifiable factors should be considered, in order to provide better quality of life for these professionals.
Patentes segundo a abordagem neo-Schumpeterian: uma discussão introdutória
Authors: ALBUQUERQUE EDUARDO DA MOTTA E
Published: June 2022

RESUMO Este artigo trata do status teórico das patentes, tendo como referência a abordagem neo-shumpeteriana. Diferentes características das patentes são analisadas: i) conteúdo informativo; ii) apropriabilidade dos retornos da inovação; iii) o complexo trade-off entre os incentivos à inovação ou difusão; iv) escopo da patente e seu impacto nas inovações de segunda geração; v) barreira à entrada. Essa análise leva a uma avaliação das leis de patentes como uma mistura diferente dessas características. Finalmente, são discutidas as especificidades das leis de patentes adaptadas aos países menos desenvolvidos.
From Miami to Cartagena: nine lessons and nine challenges of the ftaa
Authors: DEVLIN ROBERT , GARAY LUIS JORGE
Published: June 2022

Abstract In Miami in December 1994 the heads of State of 34 countries of the hemisphere decided to construct a Free Trade Area of the Americas (FTAA) by the year 2005. The initiative was backed by an ambitious Plan of Action which gained further definition in declarations of the hemisphere’s trade ministers in follow up meetings held in Denver and Cartagena. In effect, the preparatory process for the FTAA is now in gear with eleven intergovernmental working groups developing data bases, comparative studies, and recommendations for negotiations in the traditional areas of market access (tariffs and non-tariff barriers) as well as the so-called “new” issues like services, intellectual property, government procurement etc. Drawing on several objetive considerations and putting the FTAA project in perspective, the study concludes that while it is still in its initial stages of preparation for negotiations and not free of problems, the FTAA process has been successful to date and indeed describes a number of constructive lessons that can be drawn from the process concerning how to launch integration initiatives. As this process deepens and passes into the negotiation and implementation stages, serious challenges will emerge. The study identifies nine challenges that range from definition of the precise objectives of the governments regarding the basic shape of the FTAA to specification of institutional issues and the groundwork for public acceptance through the dissemination of adequate information to the public in general.
Determinação do tempo de presa em cimentos a base de hidroxiapatita e galactomanana extraído de sementes de Adenanthera pavonina L. pelo método da cavidade ressonante comparado com o método da Agulha de Gilmore
Authors: da Silva Cléber Cândido
Published: June 2022

RESUMO O tempo de presa dos cimentos dentários são um parâmetro clínico importante, pois estima o tempo disponível para a realização do tratamento pós preparação do cimento, que não pode ser longo ou curto. Atualmente, esse parâmetro pode ser determinado usando as normas ISO 6876/2001 e ADA 57/2000. Essas técnicas utilizam a agulha de Gilmore e realizam apenas uma análise superficial para determinar o tempo de pega, não sendo possível indicar se o cimento secou completamente. O objetivo deste trabalho foi determinar o tempo de pega utilizando o método da cavidade ressonante de cimentos à base de Hidroxiapatita (Hap) e galactomanana (Gal) extraídos de sementes de Adenanthera pavonina L. Foram preparados dois compostos: HAG (75% HAp e 25% Gal em peso como fase sólida e 0,30 mL de água destilada como fase líquida) e HAGJET (75% Hap, 2% em peso de pó de Gal com 0,10 mL de catalisador comercial JET (metacrilato de metil e dimetil-p-toluidina) e 0,20 mL de água destilada). A fase sólida em cada material foi dissolvido no líquido correspondente para cada composto formado. A inserção dos cimentos HAG e HAGJET gerou uma perturbação no campo elétrico devido à presença de água livre na amostra, onde esta perturbação diminui à medida que o cimento endurece devido à a evaporação dessa água livre. De acordo com os resultados, o cimento HAG teve o maior tempo de pega devido à ausência do ativador químico na sua preparação, enquanto o cimento HAGJET, que teve ativador em seu processamento, apresentou tempo de pega menor em ambas as técnicas.
Building knowledge to save species: 20 years of ichthyological studies in the Tocantins-Araguaia River basin
Authors: Chamon Carine Cavalcante , Serra Jane Piton , Camelier Priscila , Zanata Angela Maria , Fichberg Ilana , Marinho Manoela Maria Ferreira
Published: June 2022

Abstract: The Tocantins-Araguaia River basin is the largest basin located entirely in the Brazilian territory. The high degree of endemism of its ichthyofauna has been revealed in several studies, with the upper Tocantins River having the largest absolute number of endemic taxa within the Amazon basin. Here we provide an accurate review of the ichthyofauna of the Tocantins-Araguaia River basin, based on collections made between 2000-2020, including an extensive list of valid fish species occurring in the basin and a discussion of the major threats to its ichthyofauna. Ichthyofauna diversity was further refined based on web searches. Protected Areas and hydropower plants were mapped using shape files or coordinates from the responsible government agencies. 751 species of fishes are currently known from the Tocantins-Araguaia River basin. A considerable increase in fish diversity knowledge occurred in the last 20 years, in parallel with significant anthropic alterations in the basin and its surroundings. Dams constructed along the basin are ranked as the major threats to ichthyofauna. Although the drainage-basin holds several conservation units and indigenous lands, they have not been sufficient to guarantee the preservation of fish species. Our compilation emphasizes that the upper Tocantins River must be considered as a priority area to preserve fish species. Some mitigation actions that may achieve satisfactory results concerning ichthyofauna conservation are proposed.
“Early stimulation” in the scenario of Congenital Zika Virus Syndrome: Challenges in three temporalities in the Metropolitan Recife Area, State of Pernambuco
Authors: Fleischer Soraya , Garcia Júlia Vilela
Published: June 2022

Abstract In 2015, the Zika virus epidemic was declared in Brazil. More than 4,000 children were infected and developed what is known as the Congenital Zika Virus Syndrome. Incurable and only palliated with drugs, for the syndrome, “early stimulation” was presented as the only therapeutic possibility. In 2020, a pandemic, Covid-19, arrives in the country, severely disrupting the lives and care of these children and their families in the Recife, State of Pernambuco region. In this article, three times pervaded by these two health emergencies will be described. At the beginning of the Zika epidemic (2016), rehabilitation therapies were being organized, known and demanded by families. In 2019, with the virus cooled down, vacancies for therapy began to dwindle and families were more discerning and critical about them. In the third period (2020), clinics are closed in the name of social isolation and rehabilitation presents new dilemmas for these families. Rehabilitation routines have allowed for an expansion of the public sphere and spaces for dialogue and questioning of the State and its policies aimed at children and both epidemics. Withdrawal from these routines has far wider consequences for the children, their family and the wider community.
“Hunger doesn’t wait”: the struggle of women in the peripheries of São Paulo during the Covid-19 Pandemic
Authors: Carmo Milena Mateuzi
Published: June 2022

Abstract This article examines solidarity networks that have been organized during the Covid-19 pandemic in the peripheries of the city of São Paulo to respond to the overlapping of economic and sanitary crises, which particularly affect families in precarious living conditions. The objective is to argue that these articulations reveal a context marked by the state’s abandonment of its responsibilities to guarantee social rights, and by resistances and struggles that articulate race, gender, class and territory, which have grown in the past decade in the peripheries. Finally, it emphasizes the fundamental role of women who construct these networks through their daily experiences providing care. Care is not understood here as being restricted to the domestic dimension, but as a gendered practice that produces relations and struggles.
QUIMIO EM CASA: APLICATIVO PARA FAMILIARES DE CRIANÇAS E ADOLESCENTES EM USO DE ANTINEOPLÁSICOS ORAIS
Authors: Franco Gabriele Alvernaz Silva , Silva Liliane Faria da , Seixas Flavio Luiz , Góes Fernanda Garcia Bezerra , Pacheco Sandra Teixeira de Araújo , Moraes Juliana Rezende Montenegro Medeiros de
Published: June 2022

RESUMO Objetivo: elaborar e validar um aplicativo móvel para a orientação de familiares de crianças e adolescentes em tratamento com antineoplásicos orais. Método: pesquisa metodológica desenvolvida em sete etapas: busca dos temas por meio de entrevistas com vinte e três familiares de crianças e adolescentes em quimioterapia oral; estudo teórico; desenvolvimento do aplicativo móvel; validação com treze juízes especialistas; adequação; validação com doze familiares de crianças e adolescentes em quimioterapia oral e adequação final do aplicativo móvel. As entrevistas foram analisadas pelo software Interface de R pour Analyses Multidimensionnelles de Textes et de Questionneires e validadas com a escala Likert, considerando-se validados itens com Índice de Concordância igual ou maior a 70%. Resultados: o aplicativo “Quimio em Casa” foi devolvido com duas interfaces, uma versão desktop voltada para os profissionais de saúde e o aplicativo para os familiares de crianças e adolescentes em tratamento com quimioterápicos orais. Os conteúdos que direcionaram a elaboração do aplicativo foram: armazenamento; manipulação; administração; os cuidados específicos de cada quimioterápico; efeitos adversos; quando ir à emergência e checagem diária das administrações. O aplicativo foi elaborado e validado com Índice de Concordância de adequação de 96,7% entre os juízes, e de 100% pelos familiares. Conclusão: o aplicativo mostrou-se válido como tecnologia educacional na aplicação prática junto aos familiares de crianças e adolescentes em quimioterapia oral.
Biologicismo (racismo) y clasismo. Los/as actuales “negros/as” en Córdoba, Argentina
Authors: Zeballos Juan Manuel
Published: June 2022

Resumen Este artículo, que tiene por insumo discursos recogidos en diferentes experiencias etnográficas, incorpora fuentes históricas, información periodística actual y dialoga con otras producciones intelectuales, intenta proporcionar una perspectiva sobre una variedad de biologicismo (racismo) en Córdoba, Argentina. A partir del análisis de la expresión “negro/a”, determinando sus referencias y acoplamientos, se plantean las siguientes hipótesis: esta modalidad de biologicismo en gran medida constituye una exterioridad con que se manifiesta el clasismo “descendente”, y en ello radica su vigencia.
Os “múltiplos afluentes” que permeiam as relações raciais contemporâneas: problematizações sobre branquitude, políticas de inimizade e segurança pública
Authors: Fagundes Mari Cristina de Freitas , Henning Paula Correa
Published: June 2022

Resumo O artigo tem como proposta uma discussão sobre relações raciais no campo da segurança pública, tendo como fio condutor uma pesquisa de campo realizada no estado da Paraíba, no decorrer dos anos de 2019 e 2020. Aqui problematizamos um dos eixos analíticos construídos ao longo do estudo, denominado políticas de inimizade. Nele, além de fazermos uma discussão sobre branquitude e necropolítica, apontamos para a necessidade de pensarmos sobre a existência de um fazer morrer, quando os marcadores raça e juventudes se interseccionam no campo da segurança pública. Apoiadas em estudiosos e estudiosas como Achille Mbembe, Michel Foucault, Maria Aparecida Silva Bento, Michel Misse, entre outros, é que buscamos problematizar os múltiplos afluentes que seguem construindo estratégias de morte e de vida de forma desigual no cenário brasileiro.
A categoria “afro-indígena” na Amazônia paraense: usos, confluências e ambivalências em debate acadêmico
Authors: Conrado Mônica Prates , Neves Barros Thiane de Nazaré Monteiro
Published: June 2022

Resumo O caminho para o debate afro-indígena rompe com a análise reducionista da percepção da ideia de “afro” e “indígena” como miscigenação biológica. O objetivo é trazer como debate essa categoria presente em estudos acadêmicos (dissertações e teses) que se impõe na afirmativa de uma categoria não abstrata remetida às ancestralidades indígenas e de matriz africana acionadas como referência de práticas culturais que fluem presentes em produções acadêmicas nos seus usos, teias de significados, pontos de tensão e até da refutação a ela direcionada.
Incorporando a mestiçagem: a fraude branca nas comissões de heteroidentificação racial
Authors: Rodrigues Gabriela Machado Bacelar
Published: June 2022

Resumo A partir de uma pesquisa de mestrado realizada com a Comissão de Aferição da Autodeclaração Étnico-Racial da Universidade Federal da Bahia (UFBA), este texto busca refletir sobre a fraude branca no sistema de cotas raciais que, na experiência de heteroidentificação racial, faz um corpo mestiço-negro. Esse fazer corporal, por meio da manipulação estética, é compreendido dentro do dispositivo da mestiçagem, e definido como um conjunto de técnicas discursivo-corporais, materialmente complementar ao mito da democracia racial. Dois outros fenômenos cruzam essa questão: o crescimento populacional negro no Brasil e a ampliação das políticas afirmativas destinadas a esse grupo. Mais pessoas estão denominando-se negras e, consequentemente, reivindicando acesso às cotas. Dessa forma, o problema do branco fraudador está sendo pensando, neste texto, em paralelo àqueles comumente apontados como “negros de pele clara” ou “pardos”: pessoas que se tornaram negras são as mesmas que fazem um corpo mestiço-negro para acessar as cotas?
Encontro de Saberes: por uma universidade antirracista e pluriepistêmica
Authors: Albernaz Pablo de Castro , Carvalho José Jorge de
Published: June 2022

Resumo O artigo discute o projeto Encontro de Saberes, desenvolvido pelo Instituto Nacional de Ciência e Tecnologia de Inclusão no Ensino Superior e na Pesquisa Instituto Nacional de Ciência e Tecnologia de Inclusão no Ensino Superior e na Pesquisa e iniciado na Universidade de Brasília em 2010, como um movimento de inclusão étnica e racial e de descolonização das bases eurocêntricas dos currículos das nossas universidades. O foco central do Encontro de Saberes é trazer os mestres e mestras dos saberes das comunidades tradicionais (indígenas, afro-brasileiras, quilombolas, entre outras) para que atuem como docentes nas universidades, mesmo quando não possuam escolaridade alguma. Na medida em que os mestres e mestras são também pessoas negras e indígenas, sua presença no lugar de autoridade acadêmica, porém com uma formação intelectual com base em epistemes não eurocêntricas, contribui para o enfrentamento da dupla face do racismo constitutivo das nossas instituições de ensino superior e pesquisa desde sua fundação: o racismo étnico e fenotípico e o racismo epistêmico.
A categoria de lugar e sua relevância para as ciências sociais: uma reflexão a partir de conflitos ambientais em Moatize (Moçambique) e Araxá (Brasil)
Authors: Chizenga Anselmo Panse , Blanco Gabriela , Almeida Jalcione
Published: June 2022

Resumo O artigo trata das potencialidades da categoria de lugar para os estudos em ciências sociais sobre conflitos ambientais e desenvolvimento. Toma-se como base de análise os efeitos gerados pelos megaempreendimentos de carvão mineral da Vale Moçambique S.A. em Moatize (Moçambique) e de nióbio da Companhia Brasileira de Metalurgia e Mineração em Araxá (Brasil). Busca-se i) estabelecer relação entre os conceitos-categorias de lugar, território e paisagem; ii) rastrear os processos de construção do lugar a partir da mineração; e iii) apresentar modos outros de habitar o lugar que colocam em xeque a lógica mineira. Para isso, coloca-se a categoria de lugar em diálogo com os debates no campo da antropologia da natureza e na abordagem pós-estruturalista. Conclui-se que, junto à produção de lugares mineráveis por processos de redução e enclausuramento, ocorrem processos de desidentificação produzidos pela multiplicidade de práticas dos atores que exploram outros modos de habitar o lugar, coexistindo ou resistindo à lógica mineira.
Homicídios femininos no Maranhão, Brasil, 2000-2019: estudo ecológico
Authors: Coelho Sara Ferreira , Conceição Hayla Nunes da , Rufino Andréa Cronemberger , Madeiro Alberto
Published: June 2022

Resumo Objetivo: Analisar o perfil e tendência temporal dos homicídios femininos no Maranhão, Brasil, em 2000-2019. Métodos: Estudo ecológico, com dados do Sistema de Informações sobre Mortalidade. Foram avaliados o perfil dos óbitos, tendência das taxas de mortalidade (método joinpoint) e correlação com indicadores socioeconômicos e de saúde (correlação de Pearson). Resultados: Foram notificados 1.915 homicídios femininos, predominando a idade de 20-29 anos (29,9%), solteiras (62,0%), 4-7 anos de estudo (29,7%), raça/cor da pele parda (71,3%), no domicílio (31,9%), por arma de fogo (41,1%). A tendência das taxas de mortalidade foi crescente (VPA = +8,21; IC95% 5,18;10,28). Observou-se correlação negativa dos homicídios com renda per capita (p-valor = 0,031), e positiva com proporção de famílias chefiadas por mulheres (p-valor = 0,001) e taxa de mortalidade masculina por agressão (p-valor = 0,001). Conclusão: Houve crescimento dos homicídios femininos, relacionados com violência estrutural na sociedade, pobreza e mulheres com maior autoridade familiar.