bluuebunny/crossref_metadata_2025 huggingface dataset:
Response of metabolic enzymes glutamic oxaloacetate transaminase and glutamate pyruvate transaminase in vivo exposed Oreochromis niloticus against organophosphates and synthetic pyrethroid
Authors: Amin Muhammad , Yousuf Masarrat , Ahmad Naveed , Attaullah Mohammad , Ahmad Saeed , Zekker Ivar , Latif Mehreen , Zeb Alam , Ilahi Ikram , Hadi Fazal , Ullah Ubaid , Buneri Islam Dad , Ikram Muhammad , Nabi Ghulam , Nor Azra Mohamad
Published: July 2023

Organophosphates and synthetic pyrethroid pesticides are used in residential areas and agriculture, discharge into environment, may cause unpredictable toxicity to non-targeted aquatic organisms. The current study aims to assess the effect of these pesticides on the transaminases, glutamate oxaloacetate transaminase and glutamate pyruvate transaminase enzymes activity in brain and gills of Oreochromis niloticus. Fish were exposed for 24 and 48 h (hours) to the LC0 (non-lethal concentrations) of the malathion, chlorpyrifos and λ-cyhalothrin, respectively. For biochemical assay, a spectrophotometer was used. Glutamate oxaloacetate transaminase activity in brain and gill was significantly (p <0.05) elevated and inhibited, respectively, except in 48 h treated samples. The highest (+258%) and lowest (+8.9%) enhancement in this activity was noted in chlorpyrifos and malathion treated gill samples, respectively. The glutamate pyruvate transaminase activity was significantly (p <0.05) enhanced in all treated samples except in 24 h malathion treated brain. The highest (+340.7%) and lowest (+27%) enhancement in this level was recorded in malathion and chlorpyrifos exposed brain and gills samples. Therefore, it is suggested that both these assessments in fish different organs could be used as a useful biomarker to detect environmental pollution. Thus, the alterations in transaminases activity indicated that the tested pesticides are highly toxic to the health of aquatic organisms and should be periodically and regularly monitored in the environment to reduce pollutant stress on non-target biota, particularly fish.
Spatial and Epidemiological Aspects of Monkeypox (Mpx) in Rio Grande do Sul
Authors: Polidoro Maurício , Oliveira Daniel Canavese de , Nogueira Paulo Ricardo Rocha
Published: July 2023

This study analyzes the prevalence and spatial aspects of Monkeypox (MPX) in Rio Grande do Sul, considering the public health emergency declared by the World Health Organization in July 2022 and its relation to the high incidence of the disease in gay men and other men who have sex with men (MSM). Data were provided by the Rio Grande do Sul State Health Department via the Access to Information Law and revealed an incidence rate 53 times higher in MSM populations compared to heterosexual people and 48 times higher compared to bisexual people. In addition, MPX disproportionately affects Black and Brown people, with an incidence rate three times higher than the White population. Spatial analysis of the disease demonstrated its concentration in metropolitan areas. It is suggested that disseminating evidence-based information is essential to avoid stigmatization of these groups and that ring vaccination is crucial to prevent the endemic spread of the disease. It is concluded that Black and Brown gay men and MSM are at the highest risk for MPX, and preventive actions should be implemented to protect these vulnerable groups, avoid disease spread and ensure health equity.
Psychometric Properties of the Revised Trolling Questionnaire in Argentinean Adults
Authors: Resett Santiago , González Caino Pablo Christian
Published: July 2023

Trolling with new technologies is a disruptive, deceptive, and destructive behavior, with great psychosocial, legal, and economical relevance. However, there are no studies in the scientific literature that have examined the properties of questionnaires to assess them. Therefore, the purpose of the present study was to observe the psychometric properties of the Revised Trolling Questionnaire by Buckels et al.’s in a sample of Argentinean adults. An intentional sample of 837 participants from Argentina (mean age = 28.4 years; 61% female) was formed. They completed the Buckels et al.’s Revised Trolling Questionnaire, measures of dark personality, Internet addiction, cyberstalking, and socio-demographic questions. Exploratory and confirmatory factorial analyses indicated a one-factor structure with correct fit statistics. Internal consistency was adequate: Cronbach’s α = .80 and Omega coefficient (ω) = .81. Concurrent validity of the trolling questionnaire was observed with dark personality (Machiavellianism, narcissism and psychopathy), problematic Internet use (symptomatology and disfunctionality), and cyberstalking. Machiavellianism and disfunctionality were the most significant variables associated with trolling. Therefore, the Argentinean Spanish version of this test showed evidence of adequate psychometric properties.
On automorphisms of semistableG-bundles with decorations
Authors: Herrero Andres Fernandez
Published: July 2023

We prove a rigidity result for automorphisms of points of certain stacks admitting adequate moduli spaces. It encompasses as special cases variations of the moduli ofG-bundles on a smooth projective curve for a reductive algebraic groupG. For example, our result applies to the stack of semistableG-bundles, to stacks of semistable Hitchin pairs, and to stacks of semistable parabolicG-bundles. Similar arguments apply to Gieseker semistableG-bundles in higher dimensions. We present two applications of the main result. First, we show that in characteristic 0 every stack of semistable decoratedG-bundles admitting a quasiprojective good moduli space can be written naturally as aG-linearized global quotientY/G, so the moduli problem can be interpreted as a GIT problem. Secondly, we give a proof that the stack of semistable meromorphicG-Higgs bundles on a family of curves is smooth over any base in characteristic 0.
Lung abscess by Fusobacterium nucleatum and Streptococcus spp. co-infection by mNGS: A case series
Authors: Wang Na , Gao Zhichao , He Shuai , Han Mengzhen , Han Wenjie , Liu Xiaolin , Cao Hui , Jing Mingxi , Sun Tao , Xu Junnan
Published: July 2023

A lung abscess is a necrotizing infection caused by microbiomes that lead to the loss of healthy lung tissue. The routine culture is a waste of time and yields false-negative results, and clinicians could only choose empiric therapy or use broad‐spectrum antibiotics, which could significantly contribute to the problem of resistance or aggravate the condition. We report three patients with a routine-culture-negative lung abscess. The presenting symptoms included fever, cough, dyspnea, and chest pain, and a computed tomography scan revealed a lesion in the lungs. The bronchoalveolar lavage fluid and pleural fluid were tested for pathogens using metagenome next-generation sequencing (mNGS), and the results revealed Fusobacterium nucleatum and Streptococcus spp. (S. constellatus, S. intermedius) as the most represented microbial pathogens. Our data demonstrated that mNGS could be a promising alternative diagnostic tool for pathogen detection, and the pathogen lists indicate that it will be important to focus on the Streptococcus genus rather than the dominant Streptococcus spp. in terms of co-infection of pathogen determined by shotgun mNGS.
Cinderella’s Body. A Quantitative Approach to Gender, Embodiment, and Folktale Plots
Authors: Jorgensen Jeana
Published: July 2023

This study utilizes quantitative methods to investigate feminist claims about beauty in a series ofATU 510ACinderellatexts. Youth and beauty are found to be linked, and structurally, the protagonist’s encounter with the donor figure does not further beautify her but rather gives her the tools for social advancement. Articulating links between gender, beauty, and success matters in both tale worlds and the real world given not only the pressure of social norms but also the continued issue of gender-based violence due to masculine entitlement to beautiful women’s bodies.
Clearing method of regional power spot market based on blockchain and distributed data security reading algorithm
Authors: Duan Ruiqin , Zhu Xinchun , Gan Beiyu
Published: July 2023

With the progress of society, the supply of electricity has become an inevitable choice for the development of all walks of life. The stability, safety, and economic dispatch of the electric energy system directly impact the entire country’s economic development, from national defense, military, and even people’s daily life, all closely associated with the smooth running of the network. In the aspect of power grid planning and operation, the economic security dispatching problem of power system is a very typical optimization problem. The problem is how to maximize the operating cost of the system under the premise of satisfying the system’s load limit and safety and stability. Due to the rapid development of power technology, the research on power system security and economic planning is essential. As an important means to promote China’s energy structure adjustment and promote the supply side structural reform, the regional spot electricity market is playing an increasingly important role in building a resource optimization allocation mechanism, improving China’s energy resource allocation efficiency, and promoting social and economic development. However, the development of China’s regional spot power market is still in its infancy, and the transaction price of the regional spot power market is quite different from that of other countries. It was given these problems, this article discusses the use of particle swarm algorithms for secure and economic scheduling of power systems in the context of securely reading blockchains and distributed data. The research results showed that: The introduction of environmental pollution penalty programs improved the priority dispatch of wind and photovoltaic power when considering environmental penalty programs and backup penalties for wind and photovoltaic power. The setting of the coefficient of the environmental penalty term depended on the designer’s emphasis on the priority scheduling of wind power and photovoltaic (PV) power generation (PG), and the standby capacity penalty clause achieved reasonable dispatch and utilization of wind power and PV PG, which reduced the dramatic fluctuations and intermittent volume of the system, and facilitated safe and consistent operation of the network. The research of this paper shows the positive relationship between the blockchain and distributed data security reading algorithm and the clearing method of regional spot power market, and points out a new method for its development.
Chicken feather protein for the thermal stability and combustion performance of rigid polyurethane foam
Authors: Zhang Xu , Sun Simiao , Yuan Dehe , Wang Zhi , Xie Hua , Su Zhanpeng
Published: July 2023

Rigid polyurethane foams (RPUFs) were synthesized with chicken feather protein using the “one-step method” of all-water foaming. Thermogravimetry, pyrolysis kinetics analysis, Cone calorimetry and smoke density (Ds) were used to investigate the effects of chicken feather protein on thermal stability and combustion performance of RPUFs. The results showed that the modified RPUFs with 2.5 wt% chicken feather protein (RPUF-CF1) had the lowest mass loss, the highest integrated program pyrolysis temperature, the highest activation energy, the lowest Ds (13.3), the highest light transmittance (79.3 %), the lowest heat release rate (22.0 kW/m2 and 30.6 kW/m2) and total heat release (2.4 MJ/m2 and 2.8 MJ/m2), which indicated that RPUF-CF1 had better thermal stability and combustion performance. The current research results provide a useful reference for the preparation of RPUFs with good thermal stability by bio-based modification.
There are no broad subjects in Standard Arabic
Authors: Alqarni Muteb , Alanazi Mohammad
Published: July 2023

The current article argues that the multiple nominative constructions of the Japanese type do not exist in Standard Arabic. Based on evidence from binding, A′-interception and Case, the article shows that the so-called ‘broad subject’ is a clitic left-dislocated element base generated in the A′-domain. The article thus follows the spirit of the analysis proposed by Landau (e.g., Landau, Idan. 2009. Against broad subjects in Hebrew. Lingua 119(1). 89–101), who denies the existence of broad subjects in Hebrew, concluding that broad subjects do not exist in Semitic languages at all.
Coming Out Collectively: The Emotions of Latin-American Homosexual Liberation Movements
Authors: Caro Romero Felipe
Published: July 2023

In the article I study the emotions involved in the emergence of the homosexual liberation movement in Latin America. Marked by the radical ideas that came out of the sixties many queer organizations bowed to create a sexual revolution inside the social revolution. Because it was the first-time homosexuality came out to the public in the Latin America, at the same time in different countries, a sort of emotional community was formed. This happened thanks to the radical queer intellectual network that was formed after the Stonewall riots connecting the Americas with Europe. By sharing experiences and ideas I will argue that the Latin American homosexual liberation organizations also shared the process of what I have called coming out collectively, where things leaving shame and sadness, overcoming fear with courage, and building pride or anger were fundamental in the early years of the movement.
Seven Years of Brexit: Economic Geographies of Regional De- and Recoupling
Authors: Glückler Johannes , Wójcik Dariusz
Published: July 2023

This editorial offers a comprehensive introduction to the economic geographies of Brexit. It reviews the state of research on the multiple causes and consequences of the 2016 UK referendum and highlights the role of geographical context in the way that these factors interact in affecting voting behaviour and economic impact. Departing from an appraisal of the literature, we discuss the scope of six original studies collected in the special issue that, each using different analytical methods, present evidence on the impact of Brexit on the relocation of financial services firms, the recoupling of London with the other European financial centres, differences in regional productivity across the UK, as well as on the potential of UK regional policy to offset the disadvantages of financial decoupling from the European Union. Recognizing signs of political and economic disintegration beyond Europe, we conclude by highlighting a need for further research on the economic geographies of de- and recoupling.
Past, Present and Future of Early Childhood Inclusion in Canada
Authors: Wong Adora
Published: July 2023

This article examines the roots of inclusion in Canada’s educational and early childhood settings as a colonized nation. It discusses how to address the damage done to create inclusive environments where every child is empowered. While we have moved away from exclusion and segregation, inclusion policies are still resisted by parents, educators, and policymakers due to a turbulent past and the lack of coherent programming and funding (Halfton & Friendly, 2015). The author examines the dichotomy of care and education in relation to inclusion, criticizes using children as objects of scientific inquiry, and maintains the importance of upholding a capable image of the child. Modern-day inclusion policies may harm autistic children instead of helping, as they may not truly be in the best interest of children with disabilities.
Una metodología a partir de los sistemas complejos adaptativos para la construcción de redes basada en procesos organizacionales
Authors: Hernández Cansino Carmen , Carreón Vázquez Gustavo , Urbiola Solís Alejandra Elizabeth
Published: July 2023

Se propone una metodología para construir redes a partir de procesos organizacionales (metodología Repro), con el propósito de obtener una herramienta que permita conocer, analizar y fortalecer la estructura interna en organizaciones de cualquier tipo (privadas, públicas, educativas, de salud, entre otras), para identificar las vulnerabilidades de las estructuras formales que interoperan entre sí, además de posibles riesgos de procesos producidos por la dinámica de sus interacciones. El estudio de caso se llevó a cabo en una organización privada del sector asegurador, en seis de sus áreas, a través de las cuatro fases de la metodología, que son: descripción del objeto de estudio, selección de la muestra de información, descripción del flujo de los procedimientos, así como la construcción de los caminos de la red, y la construcción de la red con la plataforma de software de código abierto Cytoscape.
Testing a Novel Wearable Device for Motor Recovery of the Elbow Extensor Triceps Brachii in Chronic Spinal Cord Injury
Authors: Germann Maria , Baker Stuart N.
Published: July 2023

After corticospinal tract damage, reticulospinal connections to motoneurons strengthen preferentially to flexor muscles. This could contribute to the disproportionately poor recovery of extensors often seen after spinal cord injury (SCI) and stroke. In this study, we paired electrical stimulation over the triceps muscle with auditory clicks, using a wearable device to deliver stimuli over a prolonged period of time. Healthy human volunteers wore the stimulation device for ∼6 h and a variety of electrophysiological assessments were used to measure changes in triceps motor output. In contrast to previous results in the biceps muscle, paired stimulation: (1) did not increase the StartReact effect; (2) did not decrease the suppression of responses to transcranial magnetic brain stimulation (TMS) following a loud sound; (3) did not enhance muscle responses elicited by a TMS coil oriented to induce anterior-posterior current. In a second study, chronic cervical SCI survivors wore the stimulation device for ∼4 h every day for four weeks; this was compared with a four-week period without wearing the device. Functional and electrophysiological assessments were repeated at week 0, week 4, and week 8. No significant changes were observed in electrophysiological assessments after paired stimulation. Functional measurements such as maximal force and variability and speed of trajectories made during a planar reaching task also remained unchanged. Our results suggest that the triceps muscle shows less potential for plasticity than biceps; pairing clicks with muscle stimulation does not seem beneficial in enhancing triceps recovery after SCI.
Novel role of DONSON in CMG helicase assembly during vertebrate DNA replication initiation
Authors: Hashimoto Yoshitami , Sadano Kota , Miyata Nene , Ito Haruka , Tanaka Hirofumi
Published: July 2023

CMG (Cdc45‐MCM‐GINS) helicase assembly at the replication origin is the culmination of eukaryotic DNA replication initiation. This process can be reconstructed in vitro using defined factors in Saccharomyces cerevisiae; however, in vertebrates, origin‐dependent CMG formation has not yet been achieved partly due to the lack of a complete set of known initiator proteins. Since a microcephaly gene product, DONSON, was reported to remodel the CMG helicase under replication stress, we analyzed its role in DNA replication using a Xenopus cell‐free system. We found that DONSON was essential for the replisome assembly. In vertebrates, DONSON physically interacted with GINS and Polε via its conserved N‐terminal PGY and NPF motifs, and the DONSON‐GINS interaction contributed to the replisome assembly. DONSON's chromatin association during replication initiation required the pre‐replicative complex, TopBP1, and kinase activities of S‐CDK and DDK. Both S‐CDK and DDK required DONSON to trigger replication initiation. Moreover, human DONSON could substitute for the Xenopus protein in a cell‐free system. These findings indicate that vertebrate DONSON is a novel initiator protein essential for CMG helicase assembly.
The Effect of Ornamental Plants on Reducing the Intensity of Electromagnetic Wave Radiation
Authors: Lestari Mugi , Sulhadi Sulhadi , Sutikno Sutikno
Published: July 2023

Entering the digital era, the culture of human life is increasingly inseparable from the use of electromagnetic waves which are very useful in supporting human life, but in the other side, it also has negative impacts in the form of radiation that threatens human health. Only few people realize that ornamental plants have many benefits other than as a decoration inside or outside the room. Several types of ornamental plants have the ability to absorb electromagnetic radiation emitted by electronic equipment. In this simple physics research, measurements were made to compare the absorption of several types of ornamental plants to electromagnetic wave radiation, those are karet kebo, betel, succulent, ivy plant, and snake plant. The research results show that snake plant’s ability to absorb electromagnetic wave radiation is the greatest than others. Research conducted on ivy shows that the absorption of ornamental plants to electromagnetic wave radiation is influenced by the distance of the plant to the radiation source, where the closer the distance between the ornamental plants to the source of electromagnetic wave radiation is, the greater the absorption of radiation occurs, resulting in a decrease in the intensity of electromagnetic radiation also getting bigger. The trend of changes in the absorption of electromagnetic wave radiation shows a decrease in each increase in distance according to the exponential graph.
The role of transducin β-like 1 X-linked receptor 1 (TBL1XR1) in thyroid hormone metabolism and action in mice
Authors: Hu Yalan , Falize Kim , van Trotsenburg A S Paul , Hennekam Raoul , Fliers Eric , Bruinstroop Eveline , Boelen Anita
Published: July 2023

Transducin β-like 1 X-linked receptor 1 (TBL1XR1) is a WD40 repeat-containing protein and part of the corepressor complex SMRT/NCoR that binds to the thyroid hormone receptor (TR). We recently described a mutation in TBL1XR1 in patients with Pierpont syndrome. A mouse model bearing this Tbl1xr1 mutation (Tbl1xr1Y446C/Y446C
) displays several aspects of the Pierpont phenotype. Although serum thyroid hormone (TH) concentrations were unremarkable in these mice, tissue TH action might be affected due to the role of TBL1XR1 in the SMRT/NCoR corepressor complex. The aim of the present study was to evaluate tissue TH metabolism and action in a variety of tissues of Tbl1xr1Y446C/Y446C
mice. We studied the expression of genes involved in TH metabolism and action in tissues of naïve Tbl1xr1Y446C/Y446C
mice and wild type (WT) mice. In addition, we measured deiodinase activity in liver (Dio1 and Dio3), kidney (Dio1 and Dio3) and BAT (Dio2). No striking differences were observed in the liver, hypothalamus, muscle and BAT between Tbl1xr1Y446C/Y446C
and WT mice. Pituitary TRα1 mRNA expression was lower in Tbl1xr1Y446C/Y446C
mice compared to WT, while the mRNA expression of Tshβ and the positively T3-regulated gene Nmb were significantly increased in mutant mice. Interestingly, Mct8 expression was markedly higher in WAT and kidney of mutants, resulting in (subtle) changes in T3-regulated gene expression in both WAT and kidney. In conclusion, mice harboring a mutation in TBL1XR1 display minor changes in cellular TH metabolism and action. TH transport via MCT8 might be affected as the expression is increased in WAT and kidney. The mechanisms involved need to be clarified.
La sospecha y el cuestionamiento de los vínculos transnacionales y globales en la identificación civil de musulmanes españoles jóvenes en Madrid
Authors: Delgado Virtudes Tellez
Published: July 2023

La aparición en la esfera pública de ciertas corporalidades, como las que se asocian con el Islam y con los/as musulmanes/as, han sido vistas bajo sospecha por quienes relacionan la religiosidad islámica con la radicalización, violencia, terrorismo y barbarie. Esta sospecha y el rechazo derivado de ella, condujo unos años atrás a que un grupo de musulmanes jóvenes de Madrid reflexionaran sobre las consecuencias que podían derivarse de su vinculación a un movimiento transnacional. Aquí se verá cómo estos jóvenes articularon la performatividad de la religiosidad islámica y la identificación civil para borrar la sospecha que caía sobre ellos. When a kind of bodies such as those with Islamic appearance materialize in the Public Sphere many people look to them under suspicion, due to the link that they do between Islamic religiosity and radicalization, violence, terrorism and cruelty. Some years ago, this suspicion and the subsequent rejection drove a group of Young Muslims in Madrid to pay attention to the negative consequences they could have keeping their involvement in a religious transnational movement. Here, will see how this young males and females assembled and Islamic religious performance and a civil identification in order to erase suspicion over them.
Comparative research on the structure, chemistry, and physical properties of Turkey oak and sessile oak wood
Authors: Deaconu Iulia , Porojan Mihaela , Timar Maria Cristina , Bedelean Bogdan , Campean Mihaela
Published: July 2023

The objective of this research was to establish comparatively some relevant features of Turkey oak and sessile oak wood, in order to better understand the drying behavior of these species. The analyzed samples were obtained from freshly harvested trees of the same age, originating from the Southern Sub-Carpathians. The microscopic analysis revealed that Turkey oak has larger earlywood pores than sessile oak. In heartwood, they are partly filled with tyloses for both species. The macroscopic analysis showed that Turkey oak wood has a much lower proportion of heartwood (only 50%) compared to sessile oak (90%). The comparative FTIR analysis of the two species showed similar qualitative chemical composition, but also some differences between sapwood and heartwood regarding the relative proportion of the main constituents, and very likely in the structure of lignin. High amounts of extractives were found in Turkey oak sapwood (5.34% in cold water, 7.77% in hot water, and 21.60% in NaOH 1%), close to the values obtained in sessile oak heartwood. The research also revealed that the Turkey oak sapwood and heartwood have statistically similar values of oven-dry density, shrinkage coefficient, fiber saturation point, while in sessile oak, the values are clearly higher in the heartwood.
Use of lignocellulolytic mutants of Pleurotus ostreatus in ruminant feed formulations
Authors: Chalamcherla Vijaya , Maringanti A Singaracharya , Muvva Vijaya Lakshmi , Mangamoori Lakshmi Narasu , Ramireddy Mallikarjuna Reddy
Published: July 2023

Two lignolytic mutants (POM1 - U.V. irradiated and POM2 – X ray irradiated) of P. ostreatus wild type (POW) were developed and used in new feed formulations for ruminants. Paddy straw (10 kg) amended with coconut cake, glyricidia leaves, urea (2%), and rice bran (5%) along with mutant forms of P. ostreatus substantially increased the reducing sugars, crude protein, and In Vitro Dry Matter Digestibility (IVDMD), while reducing the lignin contents. Maximum amounts of reducing sugars (555 mg/100 ml) were reported in ration 1 with strain POW in 10 days of incubation period, while a minimum was recorded in POM1 (380 mg / 100 ml) in ration 1 in 30 days of incubation. U.V. irradiated mutant was responsible for accumulation of high crude protein (CP : 42.1 mg / 100 g) in ration 1 after 30 days of incubation. The percent lignin loss was more by mutant forms, and this loss was increased with increased incubation. As a consequence, IVDMD% has been gradually improved and maximized with feed formulations 3 (49.71%) and 1 (47.07%).
Retention and paper-strength characteristics of anionic polyacrylamides conjugated with carbohydrate-binding modules
Authors: Yokota Shingo , Matsuo Kumiko , Kitaoka Takuya , Wariishi Hiroyuki
Published: July 2023

The retention behavior of polymers having the specific affinities of glyco-hydrolases for pulp fibers was investigated with regard to paper-strength enhancement in contaminated papermaking systems. Carbohydrate-binding modules (CBMs) of cellulases derived from Trichoderma viride and T. reesei, and of xylanase from Thermomyces lanuginosus, were obtained by site-directed digestion with papain, then introduced into anionic polyacrylamide (A-PAM) via a peptide condensation reaction. Three types of CBM-conjugated A-PAMs (CBM-A-PAMs) displayed different retention behavior, depending on the kind of pulp substrates, i.e. hardwood and softwood fibers. The CBM-A-PAM from T. viride demonstrated good additive retention for hardwood pulp fibers, resulting in high tensile strength of paper sheets, even under contaminated conditions in the presence of Ca2+ ions and ligninsulfonate. The CBM-A-PAM from T. reesei showed better performance for softwood than for hardwood sheets. The xylanase CBM-A-PAM was preferentially retained on hardwood fibers in which hemicelluloses might be present. Such an additive retention system, with inherent affinities of enzymes for pulp fibers, is expected to expand the application range of CBM-polymers in practical wet-end processes.
Papermaking potential of canola stalks
Authors: Enayati Ali Akbar , Hamzeh Yahya , Mirshokraie Seyed Ahmad , Molaii Mohammad
Published: July 2023

A fundamental study was carried out to explore the properties of canola stalks with regards to pulp and paper production. In this study the morphological properties, chemical composition, and soda pulping properties of canola stalks were investigated. The mean values of length, diameter, and cell wall thickness of canola stalks fibers were measured as 1.17 mm, 23.02 mm, and 5.26 mm, respectively. The morphological properties analysis indicated that despite the thicker cell wall, the morphological properties of canola stalks fibers were comparable to those of non-woods and hardwoods fibers. The holocelluloses, alpha-cellulose, lignin, and ash contents of canola stalks were determined to be 73.6, 42.0, 17.3, and 8.2 wt%, respectively. The hot water and dilute alkali extractives of canola stalks were determined as 18 and 46.1 wt%. In comparison to most other non-wood papermaking raw materials, soda pulping of canola stalks required higher chemical charge and cooking time. Soda pulping of canola stalks gave a low yield bleachable grade pulp. The strength properties of bleached canola stalks soda pulp appeared to be similar to those of common non-wood papermaking resources. The overall results showed that canola has a promising potential to be used in pulp and paper production.
Aporte de las TIC en la gestión logística de empresas exportadoras de pescado
Authors: Franco-Medranda Yandri Javier , Zambrano-Yépez Claudia Alexandra
Published: July 2023

Esta investigación analiza el aporte de las Tecnologías de Información y Comunicación (TIC) en la gestión logística de las empresas exportadoras de pescado de tres importantes cantones de la provincia de Manabí, Ecuador, con la finalidad de determinar los beneficios y las principales barreras para su implementación. Se utilizó la metodología descriptiva con enfoque cuantitativo, aplicando la técnica de la encuesta a las empresas exportadoras de pescado. Se concluye que las principales barreras que impiden la adaptación de las TIC son los elevados costos de adquisición, cultura organizacional y la dificultad en su uso que se deriva de la falta de capacitación y desconocimiento; mientras que, entre los principales beneficios destacan la rotación de inventarios, reducción de costos y tiempos de entrega, control de la cadena de suministros y el incremento en las negociaciones internacionales. La utilidad de las TIC varía dependiendo del área en que se utilicen: en los departamentos de Ventas y Servicio al Cliente permiten mejorar las estrategias comerciales, además de aumentar la satisfacción de los clientes con el cumplimiento de los requerimientos en los tiempos acordados; en el departamento de Almacén beneficia con la reducción de los tiempos ociosos, incremento del flujo de stock además de evitar el desabastecimiento; mientras que en el departamento financiero ayuda con el análisis de presupuestos, organización de los costos, acceso a gráficos estadísticos.
Política de modernización de la gestión pública y calidad del servicio de autorización de radiodifusión
Authors: García Hernández Jesús Alexis , Sánchez Chávez William
Published: July 2023

En el año 2021 se han percibido señales que indican una baja calidad del servicio de autorización de radiodifusión que brinda la Dirección de Servicios de Radiodifusión (DSR) en Perú; señales que indican una deficiente implementación de la Política de Modernización de la Gestión Pública aprobada por el Decreto Supremo N° 004-2013-PCM. Entonces, se planteó como objetivo evaluar la implementación de la Política de Modernización de la Gestión Pública en la DSR y verificar la relación con la calidad del servicio brindado. Se realizó una investigación con el enfoque cuantitativo (proceso deductivo) de investigación, con un diseño no experimental, aplicando encuestas a una población de 104 administrados. Se demostró la presencia de problemas en todos los componentes de la Política de Modernización de la Gestión Pública implementada (gestión por procesos, simplificación administrativa y organización), habiendo una relación significativa y directa (r = 0.77) con la regular calidad del servicio percibida.
Clima organizacional y su relación con el desempeño laboral en una empresa minera. Caso Shougang
Authors: Mallma Chuquillanqui Juan José
Published: July 2023

El presente artículo tiene como objetivo general determinar la relación entre el clima laboral y el desempeño de los trabajadores en el caso de Shougang Hierro Perú, Marcona, 2019-2021. La investigación es de tipo correlacional y el diseño no experimental. Con una población de 150 trabajadores, se consideró una muestra de 120 personas, y como instrumentos se utilizó un cuestionario de 40 preguntas para la variable independiente clima organizacional y para la variable dependiente, desempeño laboral, se hizo uso de la hoja de evaluación de desempeño usado por la empresa. Para el análisis se empleó el software estadístico IBM SPSS 25.0. La hipótesis general fue aceptada con una correlación de 0.953, el valor obtenido muestra una correlación positiva muy alta, determinando que existe una relación significativa alta entre el clima organizacional y el desempeño laboral de los trabajadores. Se concluye que con un buen clima organizacional se logra el mejor desempeño de los trabajadores; al mismo tiempo, se identifican las correlaciones trascendentales que enrutan a la mejora del clima organizacional de la compañía minera.
La educación comunitaria como mecanismo para mejorar la seguridad ciudadana en Lima Metropolitana
Authors: Carrillo Llerena Juan Carlos , Castillo Maza Juan Victoriano
Published: July 2023

La seguridad ciudadana se refiere a una condición en la cual las personas pueden vivir en condiciones de libertad y tranquilidad sin ningún tipo de amenazas provocadas por violencia o delito, y en la cual el Estado les garantice el goce pleno de sus derechos. Sin embargo, el fracaso de las estrategias en materia de seguridad ciudadana a nivel nacional ha impulsado la revisión de las estrategias orientadas a brindar seguridad y sensación de seguridad ciudadana en las ciudades peruanas. En ese orden, se devela la brecha que demanda propuestas novedosas en materia del abordaje de la seguridad desde la perspectiva comunitaria. La investigación realizada tuvo como finalidad desarrollar una evaluación de la situación de la educación comunitaria como mecanismo para mejorar la seguridad ciudadana en distritos del cono sur de Lima Metropolitana, con base en la indagación real de los once distritos (Chorrillos, San Juan de Miraflores, Villa María del Triunfo, Villa El Salvador, Lurín, Pachacamac, San Bartolo, Pucusana, Punta Hermosa, Punta Negra y Santa María del Mar) que conforman esta zona. En función a ello, se llevó a cabo una investigación descriptiva, no experimental y transversal. Los resultados demostraron que la metodología de educación comunitaria es significativamente eficiente para mejorar la seguridad ciudadana en los distritos del cono sur de Lima Metropolitana.
Calidad de servicio y fidelización del cliente en veterinarias del distrito de San Miguel, 2022
Authors: Paredes Matos María Kathia
Published: July 2023

El objetivo de este artículo es identificar la conexión entre la variable calidad de servicio y fidelización del cliente en veterinarias del distrito de San Miguel, buscando demostrar que la variable independiente favorece a la dependiente. Los hogares con mascotas son los que conforman la muestra. La metodología es de tipo correlacional-causal debido a la relación que hay entre las variables y la causa-efecto que implica. Cuenta con un diseño descriptivo puesto que recopila información de los hechos y la percepción tal cual. Presenta un corte transversal porque recopila información en un momento determinado con el fin de explicar las variables, estudiar cómo repercuten y cómo interactúan en un determinado tiempo. Asimismo, es de diseño no experimental porque ayuda a analizar y ver como las variables se manifiestan en la realidad sin alteración en la muestra o unidad de análisis con la finalidad de luego examinarlas. Todo ello permitió encontrar que la calidad de servicio impacta significativamente en la fidelización del cliente en las veterinarias del distrito mencionado, confirmando la hipótesis general. Se aplicaron los cuestionarios a una muestra de 380 hogares con mascotas en el distrito de San Miguel. Como conclusión, la calidad de servicio afecta positivamente en la fidelización del cliente; por ello, es indispensable plantear estrategias que permitan brindar y mantener la calidad del servicio y de los productos que se ofrecen, y por su puesto laboral en la empresa, contar con un Manual de Organizaciones y Funciones bien elaborado y definido.
Las actitudes emprendedoras y sus incidencias
Authors: Puch Coronado Mariella Elizabeth
Published: July 2023

El emprendimiento viene tomando mayor relevancia debido al impacto directo que tiene en la reducción de las brechas laborales y económicas, por lo que el desarrollo y fortalecimiento a los distintos elementos que lo promueven se hace sumamente relevante. Uno de estos elementos primordiales está vinculado a la actitud de aquel que pretende iniciar un negocio y/o captar nuevas oportunidades en el ámbito empresarial. Es así como, en base a las contribuciones científicas que han abordado la temática y a las argumentaciones teóricas analizadas, se desprende que la actitud emprendedora se convierte en una de las competencias personales que impulsan a las decisiones que se toman en el camino emprendedor, y conllevan a reconocer el potencial emprendedor de un individuo. En tal sentido, este artículo presenta los estudios formulados sobre el constructo actitud y actitud emprendedora, incluyéndose modelos que plantean los factores que las determinan como elementos clave en la generación de emprendimientos, independientemente de la unidad de negocios que se desee gestar y/o el tamaño de la misma; reflexionándose a su vez sobre la relevancia que tiene laformación emprendedora basada no solo en competencias netamente técnicas sino también en las personales del promotor de un emprendimiento, lo que permitirá asumir los retos que conlleva el camino empresarial.
Professores surdos no ensino superior: adaptações e reflexões sobre o ensino virtual de Libras
Authors: Sá Estêvam , Moraes de Almeida Lopes Arilise , Grazielle Aparecida Soares de Castro Fernanda
Published: July 2023

Este trabalho visa refletir como acontece a atuação do professor surdo no ensino superior e sua relação ao ensino virtual no que tange à disciplina de Libras. Para desenvolver este trabalho utilizamos uma pesquisa qualitativa, com a aplicação de entrevistas semiestruturadas envolvendo cinco professores de instituições públicas de ensino superior, sendo três instituições federais e duas estaduais. Os dados coletados mostram que, em tempos de pandemia, o ensino precisou se reinventar de maneira remota e ganhou cada vez mais espaço. Os professores surdos que participaram da pesquisa e que têm o canal visual extremamente apurado, conseguem superar os desafios da barreira da língua, disseminando-a. Aos docentes, que utilizam a tecnologia em seus aprendizados no ensino virtual, também é permitida a disseminação cultural e linguística. Assim, o intuito principal de refutar as barreiras comunicativas entre surdos e ouvintes, torna a sociedade mais equânime.
Automated methodology of calculating parameters for non-traditional technology of heating mode of hydro-storage power plant station
Authors: Olishevskyi Illia , Gusev Oleksandr , Olishevskyi Hennadii
Published: July 2023

Purpose. Justification of the rational parameters of heat pumps and heat accumulators to ensure the efficient operation of the hydro storage power plant (HSPP) in the heating mode. Development of an automated methodology for calculating rational parameters for a complex system of a hydro storage power plant operating in heating mode.
Methodology. Mathematical analysis and modeling.
Findings. Using the developed automated calculation method, it was analyzed and determined that passing through the heat pump the full flow of water passing through the hydro unit is impractical and ineffective, because the energy consumption in the heat pump compressor is many times higher than the consumption of the hydro unit in pumping mode, which devalues the proposed measure as an energy-saving measure.
The use of a heat pump and a heat accumulator at the hydro storage power plant for hot water supply needs will save a third of conventional fuel costs compared to a boiler unit.
 The developed automated technique allows to calculate the limit and rational values of design and operating parameters of the heat pump and heat accumulator, which ensure the heating mode of operation of the hydro storage power plant to meet the needs of hot water supply.
Originality. An automated methodology for calculating the parameters of a complex system has been developed for the hydro storage power plant operating in heating mode. The concept of the maximum heat capacity of the hot water supply of the heat pump  is introduced. The concept of the rational heat capacity of the hot water supply of the heat pump  is introduced. In addition to the maximum heat capacity and the rational heat capacity modes, the developed method allows you to calculate all the parameters of the heat pump and heat accumulator, which provide the heating mode of the hydro storage power plant, for arbitrary values of the thermal power of hot water supply, with further comparison and analysis of the investigated modes and the selection of the most promising one.
Practical value. The technology of using a heat pump and a heat accumulator to transfer the operation of the  hydro storage power plant to the heating mode (hot water supply of residential buildings) is substantiated. The possibility of saving conditional fuel when applying the proposed technology is proven.
Ten Minutes for the Proposition "God is"
Authors: Backman Edward
Published: July 2023

Ten Minutes for the Proposition "God is"
WILD FRUITS OF AZERBAIJAN AS RAW MATERIALS FOR BIOADDITIVES
Authors: Farzaliyev E. , Dubyna A.
Published: July 2023

In Azerbaijan, the structure of nutrition is characterized by high caloric content, insufficient or unbalanced consumption of macro- and micronutrients, in particular, a deficiency of antioxidant nutrients is observed. One of the options for solving the problem of food quality is the development of a technology for processing domestic fruit raw materials into functional food bioadditives. The article provides an analysis of data on the biochemical composition (vitamin profile and polyphenolic substances) of some types of wild fruits, namely: eastern hawthorn (Crataegus orientalis L.) of the Rosaceae L. family; sea buckthorn (Hippophae L.) of the Elaeagnaceae family; wild rose (Rosa aciculus L.) of the Rosaceae family. The content of most vitamins that were determined in all water extracts is 1.1–1.2% less than the data specified in the handbook. However, the content of vitamin C is 4.5 times higher in hawthorn extract, and vitamin E is 4.88 times higher in wild rose extract. The choice of raw materials is determined by the stability and quantity of the harvest, the generally available price, as well as the availability of literary and own data of the authors that this source of raw materials contains in its composition a natural complex of physiologically active functional ingredients. For the quantitative extraction of the vitamin complex and polyphenolic substances of the wild fruits of sea buckthorn, hawthorn, and rosehip, the modes of hydroacoustic extraction using a rotary-pulsation apparatus were selected. The DPPH method was used to investigate the antioxidant activity of the obtained aqueous extracts, which varied in the series of sea buckthorn-hawthorn-wild rose. The study showed that wild fruits of Azerbaijan can be a source of biologically active substances for food production. The results of this research were implemented in production at the leading enterprise of Azerbaijan. The results confirm the potential of these types of fruits as wild plant raw materials rich in biologically active substances.
Simulation of Dual Combustion Cycle in Internal Combustion Engines using MATLAB
Authors: Bhowmick Siddhartha , Singh Bishal , Ansari Md Mushahid , Sharma Manish
Published: July 2023

The aim of this study is to develop a comprehensive mathematical model to accurately represent the dual combustion cycle in internal combustion engines, with a focus on improving combustion efficiency and reducing emissions. The novelty of this research lies in the integration of advanced combustion models within the mathematical framework to capture the unique characteristics of dual combustion cycles. The model will consider factors such as combustion characteristics, fuel-air mixing, heat transfer, and emissions. By accurately simulating the dual combustion cycle, valuable insights can be gained into the complex interactions occurring within the engine, leading to the development of optimized engine design and control strategies. The proposed model will be implemented using MATLAB, which offers flexibility and computational efficiency. The results obtained from the simulation can be validated against experimental data to ensure the accuracy and reliability of the model. This study is expected to contribute to the advancement of dual combustion cycle technology and provide valuable guidance for the design and optimization of future internal combustion engines.