bluuebunny/crossref_metadata_2025 huggingface dataset:
Managing Stressed Employees at Milk and Dairy Suppliers in East Africa: Evidence from Southwestern Uganda
Authors: Rwakiiseta Mucunguzi Innocent , Denis Sekiwu , Hirst Les
Published: January 2023

Milk production systems are intensifying due to market dynamics and increasing rivalry for production components, necessitating a correct comprehension of the new production tendencies and little effort have been done. More than 1.3 billion people are employed by it, and it generates around 40% of the world’s agricultural gross domestic product. In Uganda, the dairy milk industry contributes 80% of the gross domestic product and this plays a crucial role in the lives of many Ugandans as a source of food, income, and work. The aim of this study is rethinking how to manage stressed employees at milk and dairy suppliers. It was guided by specific objectives which include; assessing the challenges facing workers and suggesting possible solutions to ease the proper working environment. It was found that currently, roughly 14.2 million cattle, 16 million goats, 4.5 million sheep, 47.6 million chickens, and 4.1 million pigs account for the livestock production in Uganda. Work-family conflicts, poor supervisors at work, poor counselling at departmental levels by the managers were the major challenges affecting employees at milk and dairy suppliers. In addition, employees have a feeling of belonging after being given a voice, which promotes solid working relationships and this reduces stress at work
Crime Mitigation Strategies Utilised in Slum Areas of Nairobi, Kenya
Authors: Wa Teresia John Ndikaru
Published: January 2023

The increase in urban population, occasioned by the rural-urban migration of young people has resulted in the expansion of informal settlements to accommodate the large numbers of low-income earners and the unemployed. This trend is replicated all across developing economies and in Kenya, it has resulted in the establishment of informal settlements such as Kangemi, Kawangware, Mathare, Mukuru, Korogocho, and Kibera, which is the largest in the whole continent. One of the negative implications of the growth of the informal settlement is the increase in criminal trends as most residents, particularly the youth resort to criminality as a way of making a living. In response, various strategies have been adopted to mitigate or rather prevent criminal activities in these informal settlements. This study focused on such strategies as used in four slums, which include Kibera, Mukuru, Mathare, and Korogocho. The study adopted the descriptive research design, which involved the collection and analysis of quantitative data using questionnaires. The data was collected from a sample of 659 residents of the four informal settlements who were randomly sampled. The data was input in the Statistical Package of Social Science (SPSS) and then analysed using the descriptive method whereby the data was presented on tables based on percentages. The study concluded that crime was a big problem for informal settlement residents. However, one of the most prevalent crimes included illicit brew, general robbery, muggings, and burglary. The residents claimed that the government was less concerned about resolving crime. The residents, however, acknowledged the significant role that they can play in solving crime in the slums and that community participation was critical in bringing on board all stakeholders. They have, therefore, organised themselves as communities to tackle crime and insecurity in their neighbourhood. Some of the crime prevention programs adopted include community policing, police patrols, vigilante groups, erecting gates and fences, village security committees, and the employment of night guards. The study recommended increased collaboration between state and non-state actors to combat crime in informal settlements and the enhancement of the existing community policing initiatives.
Gestión y administración de un programa educativo en modalidad virtual
Authors: Ramírez García Adán Guillermo , Castillo Escalante Irma Cecilia , Pirela Hernández Ana Arelis
Published: January 2023

Actualmente las entidades de educación superior están realizando cambios sustanciales con respecto de los programas educativos, con el fin de contar con alternativas diversas y, a su vez, proporcionar una serie de condiciones que puedan cubrir los requerimientos de la población que por diversos motivos en especial los de tiempo y lejanía con la institución no pueden obtener su titulación, es por esto, que la Universidad Autónoma de Chapingo diseña e implementa diferentes estrategias para elevar la eficiencia terminal. El objetivo del presente trabajo fue sistematizar la experiencia en el diseño e implementación del diplomado Agenda y Estrategias para el Desarrollo Territorial, modalidad virtual. La investigación tiene un enfoque cualitativo, el diseño es no experimental, el alcance fue de tipo descriptivo-explicativo e interpretativo. Como instrumento de recolección de la información se hizo uso de las experiencias en el diseño e implementación del diplomado. La información fue recopilada, ordenada y reconstruida concretando errores y/o aciertos, generando críticas y autocríticas, para plasmar los referentes teóricos como resultados. De los resultados se destaca la innovación educativa dada por la puesta en marcha del Diplomado a través de un sistema de gestión de aprendizaje llamado Moodle lo que contribuyó a elevar la eficiencia terminal. Se concluye que actualmente y después de lo vivido durante la pandemia de COVID-19, la sistematización de experiencias como método de investigación, ha tenido un importante crecimiento en las últimas décadas, ya que permite ordenar, reconstruir e interpretar las experiencias a través del análisis y comprensión de lo acontecido con el objetivo de generar y plasmar conocimientos que puedan servir de base para la creación o mejora de procesos similares.
PENGARUH GAYA KEPEMIMPINAN DAN IKLIM ORGANISASI SEKOLAH TERHADAP MOTIVASI KERJA GURU PADA SMKN 2 KABUPATEN PENAJAM PASER UTARA KALIMANTAN TIMUR
Authors: Ardiansyah Ardiansyah
Published: January 2023

Penelitian ini untuk menganalisis pengaruh gaya kepemimpinan dan iklim organisasi sekolah terhadap motivasi kerja guru pada SMKN 2 Kabupaten Penajam Paser Utara Kalimantan Timur. Metode kuantitatif digunakan dalam penelitian dengan sampel jenuh sebanyak 78 orang yang sekaligus menjadi responden penelitian. Teknik analisis data menggunakan regresi linear. Hasil penelitian menunjukkan gaya kepemipinan berpengaruh terhadap variabel motivasi kerja. Selanjutnya iklim organisasi berpengaruh terhadap motivasi kerja.
PERENCANAAN DAN EVALUASI ANGGARAN SERTA STANDAR BIAYA PENGARUHNYA TERHADAP KINERJA ORGANISASI DI PEMERINTAH DAERAH KABUPATEN INDRAGIRI HILIR
Authors: Roes Rahmat
Published: January 2023

Penelitian ini bertujuan untuk mendeskripsikan pengaruh perencanaan anggaran, evaluasi anggaran dan standar biaya terhadap kinerja organisasi di Pemerintah Daerah Kabupaten Indragiri Hilir. Penelitian ini menggunakan metode kuantitatif dengan pendekatan penelitian kausal. Hasil penelitian dengan analisis regresi linear berganda berdasarkan uji t menunjukkan bahwa perencanaan anggaran berpengaruh positif dan signifikan terhadap kinerja organisasi, evaluasi anggaran berpengaruh positif dan signifikan terhadap kinerja organisasi dan standar biaya berpengaruh positif dan signifikan terhadap kinerja organisasi.
EVALUASI IMPLEMENTASI SISTEM ZONASI PENERIMAAN PESERTA DIDIK BARU (PPDB) DI SMP NEGERI 1 KAPAS KABUPATEN BOJONEGORO
Authors: Ambarwati Rufia
Published: January 2023

Penelitian ini bertujuan untuk mendeskripsikan pelaksanaan kebijakan sistem zonasi PPDB di SMP Negeri 1 Kapas Bojonegoro dan untu mengevaluasi dampak kebijakan zonasi PPDB terhadap pelaksanaan PPDB. Jenis penelitian yang digunakan adalah jenis penelitian deskriptif, yaitu : suatu penelitian yang bertujuan untuk menggambarkan secara tepat suatu individu, keadaan, gejala atau kelompok tertentu. Pendekatan yang digunakan dalam penelitian ini adalah pendekatan kualitatif. Pendekatan kualitatif ini digunakan karena bertujuan dan menggambarkan suatu gejala sosial yakni dengan membangun abstraksi, konsep, hipotesa, dan teori melalui data lapangan. Hasil penelitian ini menunjukkan bahwa penerimaan   peserta didik baru (PPDB) menggunakan sistem zona diharapkan mampu mengatasi masalah kesenjangan kualitas pendidikan di kota dan pinggir kota.  Hasil penelitian menunjukkan selama proses pelaksanaan PPDB di SMP Negeri 1 Kapas Kabupaten Bojonegoro secara keseluruhan sudah sesuai dengan juknis dari dinas kabupaten Bojonegoro dalam proses penetapan pengumuman tidak menyertakan jumlah pagu yang tersedia.
PENGARUH GAYA KEPEMIMPINAN DAN BUDAYA ORGANISASI TERHADAP KINERJA GURU YANG DIMEDIASI OLEH LOYALITAS GURU SDN PLOSO V KOTA SURABAYA
Authors: Wardhana Shandy Kusuma , Chamariyah Chamariyah
Published: January 2023

Penelitian ini bertujuan untuk menganalisis pengaruh gaya kepemimpinan dan budaya organisasi terhadap kinerja guru yang dimediasi oleh loyalitas guru di SDN Ploso V Kota Surabaya. Penelitian ini menggunakan pendekatan kuantitatif dan analisis data menggunakan SEM PLS. Hasil penelitian menunjukkan bahwa gaya kepemimpinan berpengaruh positif signifikan terhadap kinerja guru dengan nilai sampel asli sebesar 0,490. Gaya kepemimpinan berpengaruh positif signifikan terhadap loyalitas dengan nilai sampel asli 0,501. Budaya organisasi berpengaruh positif signifikan terhadap loyalitas dengan nilai sampel asli sebesar 0,426. Budaya organisasi berpengaruh positif signifikan terhadap kinerja guru dengan nilai sampel asli sebesar 0,407. Loyalitas berpengaruh positif signifikan terhadap kinerja guru dengan nilai sampel asli sebesar 0,664. Gaya kepemimpinan berpengaruh positif signifikan terhadap kinerja guru yang dimediasi oleh loyalitas dengan nilai sampel asli sebesar 0,332. Budaya organisasi berpengaruh positif signifikan terhadap kinerja guru yang dimediasi oleh loyalitas dengan nilai sampel asli sebesar 0,270.
POWER SYSTEM UNDER FREE MARKET CONDITIONS
Authors: Ivar Wangensteen
Published: January 2023

During the past 20 years, we have seen an expanding role for the free market in the electricity sector as well as other sectors. A perfectly competitive power market is efficient but difficult to achieve. The special features of electricity should be taken into account. In this paper, it is shown how traditional Optimal Power Flow (OPF) can be extended to include the demand side, thereby reflecting the supply-demand balance of an open market. The OPF technique can be used for the calculation of a set of nodal prices representing the optimal price at each node in the grid, from which we can derive a set of optimal transmission prices. Depending on the market design, generation planning can be performed by central optimization or in a decentralized manner by each generation company. For an individual generating company, the planning criterion will change from cost minimization to profit maximization. Practical experiences are now available from various parts of the world. It is clearly demonstrated that a power market can be operated under free market conditions. Various solutions concerning ownership and market design have been implemented. However, experiences have been mixed. In the future, it will be important to draw upon the lessons that have been learned.
THE EXTERNAL COSTS OF THE PRODUCTION OF ELECTRICAL ENERGY AND THE ENVIRONMENTAL PROTECTION POLICY
Authors: Željko Tomšić  , Nenad Debrecin  , Kažimir Vrankić
Published: January 2023

In this article, the economic foundations for external costs and the manner of evaluating them are presented. Two basic methods for determining external costs are described: the impact pathway method (or the costs of damages method) and the costs of control method. The range of analysis, priority impacts, pressures on the environment, receiving environment, pollution distribution in the environment (assessment of exposure), the functional link between exposure and impact, monetary valuation and risk assessment are defined. It is concluded that the costs of reducing emission progressively increase with the level of reduction. Therefore, an environmental protection policy based exclusively on stipulated standards is not an ideal solution because it generates unnecessarily high expenditures. It has been demonstrated that easing the regulations toward market-oriented measures could yield financial savings of equal ecological benefit.
THE LIFE AND WORK OF NIKOLA TESLA
Authors: Vladimir Muljević
Published: January 2023

The article briefly describes the life of Nikola Tesla, from the village of Smiljan to New York, from a resourceful boy and animal lover to a world famous scientist. The ancestry of the Tesla family is discussed, starting with a description of the ethnic background of the inhabitants of Lika. Tesla’s education in Croatia consisted of elementary school in Smiljan and Gospić, and secondary school in Gospić and Rakovac. This was followed by the polytechnic school in Graz and further education in Prague. Tesla’s work in Budapest and France, his departure from Europe and the continuation of his work in the USA are discussed, as well as the establishment of his own laboratory. Tesla’s patents in the fi eld of electrical machinery and equipment that he patented at the United States Patent Office are briefly presented. There are also comments by distinguished figures about Nikola Tesla and the recognition he merited.
TESLA’S INVENTIONS IN PHYSICS AND HIS ENGINEERING SPIRIT
Authors: Tomislav Petković
Published: January 2023

The article describes Tesla’s inventions in physics. Tesla’s engineering spirit is compared to M. Faraday’s and A. A. Michelson’s spirit of discovery in electromagnetism. Tesla’s unfinished investigative journey, from great experiments in electrical technology and radio technology to the physical theories he derived from them, are examined historically and scientifically. Several discoveries and individual experiments are described that were signifcant in the subsequent development of accelerator technology, as well as Tesla’s monopole antenna for high power and long-range electromagnetic waves, in which the principle of Tesla’s transformer is applied. Within the framework of classical electromagnetic theory, calculations and modern analysis of the system for the study of Tesla’s model of the long-distance wireless transmission of electromagnetic energy or information are presented, demonstrating the scientific basis for Tesla’s ideas. The coverage of Tesla’s inventions and contributions in the physics and electrical engineering curricula at the University of Zagreb is reviewed, especially in textbooks and other works by Ivan Supek, Vatroslav Lopašić and Tomo Bosanac. An interpretation is offered of Tesla’s interest in Goethe’s poetry, which provided an impetus for his inventions and desire for knowledge.
Factores determinantes de emprendimiento en las PYMES en el cantón la Maná
Authors: Garófalo Untuña Viviana Mishelle , Baraja Mena Wilson Oswaldo , Navarrete Fonseca Mario Fernando
Published: January 2023

El sector agrícola es parte del sector primario donde se desarrollan actividades y prácticas de campo; incluye todas las actividades relacionadas con la agricultura. El sector agrícola produce cultivos de frutas, hortalizas, invernaderos y viveros, actividades relacionadas con el cultivo de granos y semillas, agricultura industrial, y de gran escala, actividades de apoyo a la agricultura. La problemática surge por el desconocimiento de los factores determinantes para emprender en las Pymes agrícolas, el objetivo fue analizar la incidencia de los factores determinantes en la generación de emprendimientos de las Pymes Agrícolas de La Maná. La población de estudio fue de 234 Pymes que ejercen de actividad agrícola en La Maná. Se empleó una investigación descriptiva y correlacional de carácter cuantitativo; la técnica utilizada fue la encuesta y su instrumento (cuestionario) compuesto por 28 ítems. Los resultados muestran que los factores con más relación son las variables: estrategia para el lanzamiento del producto (0,753) y barreras de entrada en el mercado (0,719). Se concluye que los factores determinantes del sector agrícola tienen incidencia en la generación de emprendimientos.
Hemoglobina glicosilada en población diabética en periodo de pandemia covid-19 en un centro de atención primaria
Authors: Riveros Daniel , Ortiz-Cabezas Alex , Canela-Soler Jaume , Monleón-Getino Antonio , Ayala-Aldana Nicolas
Published: January 2023

Introducción. La diabetes mellitus tipo 2 (DM2) es una enfermedad metabólica que afecta todas las aristas de la vida individual y familiar de la persona que la padece. La pandemia causada por el virus de SARS-COV-2 ha generado un problema relevante a nivel del sistema de salud, provocando una sobrecarga importante y una complejizarían de los servicios para atender la infección. Lo anterior, ha llevado a que muchas personas pierdan sus controles crónicos y no puedan cuidarse de manera adecuada. Métodos. La prueba de Wilcoxon se utilizó para comparar grupos de pacientes y variables continuas. Se aplicó un modelo de regresión lineal para estudiar la asociación entre la glicemia y la hemoglobina glicosilada. Se consideró un valor p <0.05 para aceptar la hipótesis alternativa de las pruebas estadísticas. Resultados. Se encontraron diferencias significativas entre población con niveles inferiores a 9% de hemoglobina glicosilada y niveles superiores o iguales a 9% en variables como glicemia, colesterol total, colesterol HDL, colesterol LDL y triglicéridos. En el modelo de regresión lineal se reportó R2  (0.61) y  (0.22) entre la glicemia y la hemoglobina glicosilada con significancia estadística en todos los niveles (valor p<0.05). Conclusiones.  Un mal ajuste de los niveles de HBA1C en población con DM2 podría generar una serie de comorbilidades como dislipidemias, hipertensión, enfermedad cardiovascular o infarto agudo al miocardio producto de la glucotoxicidad y lipotoxicidad.
FROM EGOCENTRISM TO ALTRUISM: WHAT MAKES THE PLATFORM THE MOST SYMPTOMATIC MOVIE OF OUR DESPERATE TIMES?
Authors: P. M. Najeeb
Published: January 2023

This paper is an examination of the ideas of egocentrism and altruism as illustrated in The Platform, a 2019 Spanish movie, in the light of Covid 19 pandemic. The movie, which was released on Netflix during the beginning of the pandemic, is a loud pronouncement on the vices of selfishness and cutthroat competition for resources. It reminds the viewers of a central idea in the Gandhian philosophy: sarvodaya or welfare for all. It warns that competition is detrimental for the society as a whole and instead advocates a philosophy of co-operation and solidarity especially during times of crises. Pursuing one’s own self-centred desires will not fulfil the meaning of life. The paper illustrates the conflict between the principles of selfishness and altruism as exemplified by the protagonists of the movie. It goes into an in depth analysis of ‘need’ and ‘greed’ as two vital forces of social life as shown in the movie and draws ideas from Luis Bunuel’s movie The Discreet Charm of Bourgeois to demonstrate the futile and inconclusive nature of greed. The paper tries to conclude that it is through altruism, solidarity and cooperation, not through selfishness and competition that the world can survive as a whole.
MENTAL HEALTH AND SOCIAL MEDIA ADDICTION OF SECONDARY SCHOOL STUDENTS IN RELATION TO LOCALE DURING PANDEMIC COVID-19
Authors: Chattopadhyay Mahadeb , Baskey Sunil Kumar
Published: January 2023

The present study was conducted with the main objectives to study the mental health and social media addiction among secondary students with respect to certain variable like gender locale (rural, urban) and also to find out the relationship between mental health and social media addiction. The data was collected by selecting randomly 156 secondary school students by using a self made questionnaire “Social Media Addiction questionnaire Student Form”- developed by Researcher and “Mental Health Battery” by A. K. Singh & Alpana Sengupta. The sample consisted of 53% students from rural schools and 47% students from urban schools. Descriptive research method was employed to carry out this quantitative research work. Normalization of data was done by using Histogram with normal probability curve. Descriptive Statistical technique like mean and standard deviation and inferential statistics like‘t’-test and correlation were used to analyze and interpret the data. All hypotheses were checked at the 0.05 level of significance. Result showed that significant differences of mental health exist rural and urban students (t=4.60, p=0.00) and significance differences of social media addiction exist between rural and urban students (t=2.62, p=0.009). Moreover, there exist a significant negative relationship (r= -0.769) between mental health and social media addiction. These finding will be helpful to aware about the use of social media and the better way to use social media for mentally healthy students. Present study offers to make insight in the social media user to eliminate the effect of addiction. Social media directly or indirectly affects the mental health of younger generation. These findings suggest that helping school students to gain a better understanding of the adverse effects of social media addiction.
For God and Glory: Perceptions on Indigenization of Clerical Vestments in the Church of Nigeria (Anglican Communion)
Authors: Falako Francis Omoyele , Ofuafo Philomena Uyovwirume
Published: January 2023

Religious personnel have always been unique in their costumes that depict ranks, nature of ceremony and roles in a given cultic rite. That the splendid vestments have always been culturally related and significant accounts for debates and modifications. For Africans, when it comes to the fabrication of liturgical attires, the focus is not necessarily on the need for change as much as the nature and extent of the Africanness in Christianity. This paper appraises the perceptions of what the contemporary styles of liturgical vestments like the chasuble, stole and cope in the Church of Nigeria (Anglican Communion) should be. The work evaluates calls for contextualization, nature and extent of such changes in the materials, colours, embellishment, symbolism, and implications. The authors adopted the qualitative approach, carried out a bibliographic survey and conducted interviews with a focused group and key informants. Data collected was limited to purposively selected priests, parishioners and vestment makers across Yoruba land, South-Western Nigeria. The findings reveal divergent views on cravings for indigenization of the priestly sartorial spectrum, what constitutes quality, and ingenuity. The authors recommended more appreciation of traditional textiles and elements by the church.

Keywords: Clerical Vestments; Yoruba Textiles; Indigenization; Church of Nigeria, Anglican Communion.
INVESTMENT IN INFRASTRUCTURE AS A KEY TO SUSTAINABLE ECONOMIC RECOVERY: THE ROLE OF THE BUILDING INDUSTRY
Authors: Ruddock Les , Ruddock Steven
Published: January 2023

The focus of this paper is the role of the building industry in post-COVID-19 economic recovery plans. Investment in infrastructure forms a major part of many countries’ strategies to engender economic growth and construction is the pivotal industry in enabling the implementation of the plans in a sustainable manner. This study looks at the effects of investment in infrastructure on the economy with reference to the role of the construction industry in delivering this investment. Basic issues are considered, particularly concerning how relevant investment can be measured and how the contribution of the construction sector can be realistically assessed. A review of data sources and empirically peer-reviewed papers is undertaken. Based on longitudinal time series data from national statistics agencies and international organizations, analysis is undertaken to discover the relationship between infrastructure investment and economic growth. The study focuses on the UK, but comparisons are made with other countries to consider alternative approaches to stimulus investment policies with digitalization, and sustainability and green investment being a growing feature of investment plans. Potential issues of these approaches are examined and the main barriers to their achievement are identified. Emerging trends and a set of policy agendas are proposed to guide future directions.
Morpheus Reveals Distant Disk Galaxy Morphologies with JWST: The First AI/ML Analysis of JWST Images
Authors: Robertson Brant E. , Tacchella Sandro , Johnson Benjamin D. , Hausen Ryan , Alabi Adebusola B. , Boyett Kristan , Bunker Andrew J. , Carniani Stefano , Egami Eiichi , Eisenstein Daniel J. , Hainline Kevin N. , Helton Jakob M. , Ji Zhiyuan , Kumari Nimisha , Lyu Jianwei , Maiolino Roberto , Nelson Erica J. , Rieke Marcia J. , Shivaei Irene , Sun Fengwu , Übler Hannah , Williams Christina C. , Willmer Christopher N. A. , Witstok Joris
Published: January 2023

The dramatic first images with JWST demonstrated its power to provide unprecedented spatial detail for galaxies in the high-redshift universe. Here, we leverage the resolution and depth of the JWST Cosmic Evolution Early Release Science Survey data in the Extended Groth Strip to perform pixel-level morphological classifications of galaxies in JWST F150W imaging using the Morpheus deep-learning framework for astronomical image analysis. By cross-referencing with existing photometric redshift catalogs from the Hubble Space Telescope (HST) CANDELS survey, we show that JWST images indicate the emergence of disk morphologies before z ∼ 2 and with candidates appearing as early as z ∼ 5. By modeling the light profile of each object and accounting for the JWST point-spread function, we find the high-redshift disk candidates have exponential surface brightness profiles with an average Sérsic index 〈n〉 = 1.04 and >90% displaying “disky” profiles (n < 2). Comparing with prior Morpheus classifications in CANDELS we find that a plurality of JWST disk galaxy candidates were previously classified as compact based on the shallower HST imagery, indicating that the improved optical quality and depth of the JWST helps to reveal disk morphologies that were hiding in the noise. We discuss the implications of these early disk candidates on theories for cosmological disk galaxy formation.
Timing Analysis of the 2022 Outburst of the Accreting Millisecond X-Ray Pulsar SAX J1808.4-3658: Hints of an Orbital Shrinking
Authors: Illiano Giulia , Papitto Alessandro , Sanna Andrea , Bult Peter , Ambrosino Filippo , Miraval Zanon Arianna , Coti Zelati Francesco , Stella Luigi , Altamirano Diego , Baglio Maria Cristina , Bozzo Enrico , Burderi Luciano , de Martino Domitilla , Di Marco Alessandro , di Salvo Tiziana , Ferrigno Carlo , Loktev Vladislav , Marino Alessio , Ng Mason , Pilia Maura , Poutanen Juri , Salmi Tuomo
Published: January 2023

We present a pulse timing analysis of NICER observations of the accreting millisecond X-ray pulsar SAX J1808.4−3658 during the outburst that started on 2022 August 19. Similar to previous outbursts, after decaying from a peak luminosity of ≃1 × 1036 erg s−1 in about a week, the pulsar entered a ∼1 month long reflaring stage. Comparison of the average pulsar spin frequency during the outburst with those previously measured confirmed the long-term spin derivative of

ν

̇

SD

=
−
(
1.15

±

0.06
)
×

10

−
15

Hz s−1, compatible with the spin-down torque of a ≈1026 G cm3 rotating magnetic dipole. For the first time in the last twenty years, the orbital phase evolution shows evidence for a decrease of the orbital period. The long-term behavior of the orbit is dominated by an ∼11 s modulation of the orbital phase epoch consistent with a ∼21 yr period. We discuss the observed evolution in terms of a coupling between the orbit and variations in the mass quadrupole of the companion star.
Activity pattern and predatory behaviour of the ocelot (Leopardus pardalis) (Carnivora, Felidae) in mineral licks of the Yasuni National Park, Ecuador
Authors: Macas-Pogo Patricio , Mejía Valenzuela Edison , Arévalo-Serrano Gabriela
Published: January 2023

The ocelot, Leopardus pardalis, is one of the opportunistic predators of the tropical forests that includes birds, small and medium mammals, amphibians and reptiles in its diet. Aiming to observe its behaviour within its natural habitat, 10 cameras were installed in 10 mineral licks within the Yasuni National Park (Ecuador). Both images and videos of ocelot predation events were collected. Hence, the frequency of activity of this specie was determined with the register of captures obtained. Three events are described: the first one, an image of an ocelot stalking a Mazama deer was taken, while in the second scene, a video of stalking an anuran was obtained and in the third event, a video of the ocelot capturing a flying bat was recorded. The use of camera traps allowed us to collect valuable behavioural information about this feline and provide evidence of the importance of the mineral licks for this and other wild species.
Critical node identification in network cascading failure based on load percolation
Authors: Hu Hangyu , Wu Fan , Xie Xiaowei , Wei Qiang , Zhai Xuemeng , Hu Guangmin
Published: January 2023

Identification of network vulnerability is one of the important means of cyberspace operation, management and security. As a typical case of network vulnerability, network cascading failures are often found in infrastructure networks such as the power grid system, communication network and road traffic, where the failure of a few nodes may cause devastating disasters to the whole complex system. Therefore, it is very important to identify the critical nodes in the network cascading failure and understand the internal laws of cascading failure in complex systems so as to fully grasp the vulnerability of complex systems and develop a network management strategy. The existing models for cascading failure analysis mainly evaluate the criticality of nodes by quantifying their importance in the network structure. However, they ignore the important load, node capacity and other attributes in the cascading failure model. In order to address those limitations, this paper proposes a novel critical node identification method in the load network from the perspective of a network adversarial attack. On the basis of obtaining a relatively complete topology, first, the network attack can be modeled as a cascading failure problem for the load network. Then, the concept of load percolation is proposed according to the percolation theory, which is used to construct the load percolation model in the cascading failure problem. After that, the identification method of critical nodes is developed based on the load percolation, which accurately identifies the vulnerable nodes. The experimental results show that the load percolation parameter can discover the affected nodes more accurately, and the final effect is better than those of the existing methods.
Some new criteria for judging $ \mathcal{H} $-tensors and their applications
Authors: Gong Wenbin , Wang Yaqiang
Published: January 2023

$ \mathcal{H} $-tensors play a key role in identifying the positive definiteness of even-order real symmetric tensors. Some criteria have been given since it is difficult to judge whether a given tensor is an $ \mathcal{H} $-tensor, and their range of judgment has been limited. In this paper, some new criteria, from an increasing constant $ k $ to scale the elements of a given tensor can expand the range of judgment, are obtained. Moreover, as an application of those new criteria, some sufficient conditions for judging positive definiteness of even-order real symmetric tensors are proposed. In addition, some numerical examples are presented to illustrate those new results.
Modular total vertex irregularity strength of graphs
Authors: Ali Gohar , Bača Martin , Lascsáková Marcela , Semaničová-Feňovčíková Andrea , ALoqaily Ahmad , Mlaiki Nabil
Published: January 2023

A (modular) vertex irregular total labeling of a graph $ G $ of order $ n $ is an assignment of positive integers from $ 1 $ to $ k $ to the vertices and edges of $ G $ with the property that all vertex weights are distinct. The vertex weight of a vertex $ v $ is defined as the sum of numbers assigned to the vertex $ v $ itself and to the edge's incident, while the modular vertex weight is defined as the remainder of the division of the vertex weight by $ n $. The (modular) total vertex irregularity strength of $ G $ is the minimum $ k $ for which such labeling exists. In this paper, we obtain estimations on the modular total vertex irregularity strength, and we evaluate the precise values of this invariant for certain graphs.
High-order numerical algorithm for fractional-order nonlinear diffusion equations with a time delay effect
Authors: Omran A. K. , Pimenov V. G.
Published: January 2023

In this paper, we examine and provide numerical solutions to the nonlinear fractional order time-space diffusion equations with the influence of temporal delay. An effective high-order numerical scheme that mixes the so-called Alikhanov $ L2-1_\sigma $ formula side by side to the power of the Galerkin method is presented. Specifically, the time-fractional component is estimated using the uniform $ L2-1_{\sigma} $ difference formula, while the spatial fractional operator is approximated using the Legendre-Galerkin spectral approximation. In addition, Taylor's approximations are used to discretize the term of the nonlinear source function. It has been shown theoretically that the suggested scheme's numerical solution is unconditionally stable, with a second-order time-convergence and a space-convergent order of exponential rate. Furthermore, a suitable discrete fractional Grönwall inequality is then utilized to quantify error estimates for the derived solution. Finally, we provide a numerical test that closely matches the theoretical investigation to assess the efficacy of the suggested method.
Robust comparative statics for the elasticity of intertemporal substitution
Authors: Flynn Joel P. , Schmidt Lawrence D. W. , Toda Alexis Akira
Published: January 2023

We study a general class of consumption–savings problems with recursive preferences. We characterize the sign of the consumption response to arbitrary shocks in terms of the product of two sufficient statistics: the elasticity of intertemporal substitution (EIS) between contemporaneous consumption and continuation utility, and the relative elasticity of the marginal value of wealth (REMV). Under homotheticity, the REMV always equals 1, so the propensity of the agent to save or “dis‐save” is always signed by the relationship of the EIS with unity. We apply our results to derive comparative statics in classical problems of portfolio allocation, consumption–savings with income risk, and entrepreneurial investment. Our results suggest empirical identification strategies for both the value of the EIS and its relationship with unity.
Innovation, firm size distribution, and gains from trade
Authors: Chen Yi-Fan , Hsu Wen-Tai , Peng Shin-Kun
Published: January 2023

Power laws in productivity and firm size are well documented empirical regularities. As they are upper right‐tail phenomena, this paper shows that assuming
asymptotic power functions for various model primitives (such as demand and firm heterogeneity) are sufficient for matching these regularities. This greatly relaxes the functional‐form restrictions in economic modeling and can be beneficial in certain contexts. We demonstrate this in a modified Melitz (2003) model, which embeds an innovation mechanism so as to endogenize the productivity distribution and generate both of the above‐mentioned power laws. We also investigate the model's welfare implications with regard to innovation by conducting a quantitative analysis of the welfare gains from trade.
∀ or ∃?
Authors: Segal Uzi
Published: January 2023

This paper shows that in some axioms regarding the mixture of random variables, the requirement that the conclusions hold for all values of the mixture parameter can be weakened by requiring the existence of only one nontrivial value of the parameter, which need not be fixed. This is the case for the independence, betweenness, and mixture symmetry axioms. Unlike the standard axioms, these weaker versions cannot be refuted by experimental methods.
Naissance de Javert
Authors: Rosa Guy
Published: January 2023

La rédaction des Misérables en deux campagnes d’écriture très éloignées de part et d’autre de l’exil (1845-1848 et 1860-1862) demande la comparaison des deux états du livre ; la réorientation profonde que connaissent, entre la Révolution et le coup d’État, la vie de Hugo, son action, sa pensée et son œuvre, exige cette confrontation ; le fait que tout soit écrit, corrigé, ajouté, sur le même manuscrit la rend aisée. Elle aboutit à des conclusions nettes et dont la portée confirme l’utilité des travaux de génétique. Il s’agit ici de bien moins, mais en appliquant la même méthode comparative. Le manuscrit, complété par une feuille qui en a été retirée, permet en effet de constater que la rédaction initiale du célèbre chapitre « Comment Jean peut devenir Champ » était très différente de celle que nous connaissons – d’ailleurs acquise dès avant l’exil. Javert n’y était en rien un « saint Michel monstrueux », seulement un brave homme de fonctionnaire trop zélé. Dans la genèse de l’œuvre son invention n’est pas première ; sans doute même est-ce la faiblesse de ce chapitre dans sa rédaction initiale qui a orienté Hugo vers le personnage qu’on connaît, incarnation terrible de la destruction de la conscience par la conformité et de la justice par la loi.
Transferencias condicionadas de dinero en Colombia: entre la política social y las lógicas de servidumbre
Authors: González García Leidy Yolanda
Published: January 2023

El propósito de este artículo es interrogar los múltiples y complejos ordenes sociales que instaura y reproduce la política social en Colombia a través del programa de transferencias monetarias condicionadas «Más familias en acción». Para ello se elige al dinero, proveniente de este programa, como matriz explicativa que permita examinar tres líneas analíticas que se producen en la población receptora de este tipo de transferencias monetarias, a saber: lógicas sociales, posicionamientos morales y producciones afectivas. Metodológicamente la investigación opta por una triangulación de tres registros de información. En primer lugar, 50 entrevistas a profundidad con población receptora de la transferencia condicionada de dinero; en segundo lugar, un proceso de observación sistematizada en diarios de campo, y en tercer lugar la conformación de un archivo de fuentes secundarias que se nutre de: informes técnicos y administrativos de la política social en Colombia, documentos e informes provenientes de organismos multilaterales, evaluaciones de impacto, guías y material con el cual se efectúan procesos de capacitación financiera a las personas receptoras del dinero de la transferencia, entre otros. El artículo adopta una perspectiva crítica que se vale de referentes teóricos provenientes de la escuela de la regulación francesa, así como algunos análisis de la obra de Michel Foucault. La forma de gobierno que se instaura con este tipo de políticas sociales, afincadas en premisas como el capital humano y el emprendimiento, da lugar a complejas tramas que transitan entre la obediencia a las condiciones de la transferencia monetaria; la fijación en la obtención de dinero; y la servidumbre que se fomenta en el marco de condiciones de pobreza estructural y desigualdad en Colombia.
USP39 Regulates NF-κB–Mediated Inflammatory Responses through Deubiquitinating K48-Linked IκBα
Authors: Quan Jiazheng , Zhao Xibao , Xiao Yue , Wu Han , Di Qianqian , Wu Zherui , Chen Xinyi , Tang Haimei , Zhao Jiajing , Guan Yonghong , Xu Yongxian , Chen Weilin
Published: January 2023

IκBα is a critical protein that inhibits NF-κB nuclear translocation and impairs NF-κB–mediated signaling. The abundance of IκBα determines the activation and restoration of the inflammatory response. However, posttranslational regulation of IκBα remains to be fully understood. In this study, we identified ubiquitin-specific protease 39 (USP39) as a negative regulator in the NF-κB inflammatory response by stabilizing basal IκBα. The expression of USP39 in macrophages was reduced under LPS-induced inflammation. Knockdown or knockout of USP39 in macrophages significantly increased the expression and secretion of proinflammatory cytokines upon exposure to LPS or Escherichia coli, whereas reexpression of exogenous USP39 in USP39-deficient macrophages rescued the effect. Moreover, USP39-defective mice were more sensitive to LPS or E. coli–induced systemic sepsis. Mechanistically, USP39 interacted with and stabilized IκBα by reducing K48-linked polyubiquination of IκBα. Taken together, to our knowledge, our study for the first time revealed the inhibitory function of USP39 in the NF-κB inflammatory response, providing a previously unknown mechanism for control of inflammatory cytokine induction in the cellular anti-inflammatory response.
Remote sensing of sea surface salinity: A bibliometric analysis
Authors: Zanon Flavia , Cesarano Cinzia , Cotroneo Yuri , Fusco Giannetta , Budillon Giorgio , Aulicino Giuseppe
Published: January 2023

In recent years, rapid advances in technologies have allowed significant positive changes within the field of satellite observations of the global ocean. This paper reviews the available global scientific literature that focuses on the study of salinity by remote sensing, tracking its evolution and trends by combining social network analysis and bibliometrics. Furthermore, the study shows the relationships and co-occurrences between authors, countries and keywords retrieved from the abstracts and citations database provided by Scopus. An analysis of 581 publications has been carried out. The achieved results, which highlight a worldwide increase in scientific interest in this field over the last decade, may constitute a useful tool for a global vision and for a potential improvement in the international efforts employed in the study of salinity from remote sensing.
Ripigliati! Il blocco emotivo nei giovani
Authors: Vanni Fabio
Published: January 2023

Non disponibile
Editoriale
Authors: Vanni Fabio
Published: January 2023

Non disponibile
Monitoraggio delle complicanze da tossicità nei pazienti sottoposti a CAR-T: studio osservazionale, prospettico
Authors: Palmisano Francesca , Di Matteo Roberta , Cannici Chiara , Milioto Martina , Riccomagno Martina , Gaino Rosanna , Favata Ignazio , Rivela Paolo , Arcidiacono Simona , Gambarini Lorella , Bolgeo Tatiana , Maconi Antonio
Published: January 2023

Background: L’ambito delle terapie con CAR-T è un campo ancora nuovo e la gestione delle tossicità è nella sua fase iniziale; è necessaria, dunque, una ricerca mirata che affronti le questioni critiche relative agli outcomes dei pazienti. Scopo dello studio è quello di monitorare l’incidenza di complicanze da tossicità dovuta a CAR-T durante il periodo relativo al ricovero ospedaliero. Metodi: Studio osservazionale, prospettico, monocentrico. Il campione sarà composto da tutti i pazienti di età ≥18 anni candidati a trattamento con CAR-T da aprile 2022 ad aprile 2025. Al fine della raccolta dati verranno utilizzate le seguenti scale di valutazione: Numeric Rating Scale for Pain, Scheda Eventi Avversi, Immune Effector Cell-associated Encephalopathy Score, Grading WHO, EuroQol-5D-3L, Hospital Anxiety Scale, Scored Patient-Generated Subjective Global Assessment, Contentment with Life Assessment Scale. Conclusioni: L’immunoterapia e le CAR-T hanno mostrato risultati promettenti nel trattamento di alcune neoplasie maligne, ma possono essere associate a tossicità diverse e non completamente comprese che possono essere fatali se non identificate precocemente e trattate in modo appropriato. La comprensione delle complicanze potrebbero migliorare gli outcomes dei pazienti.
Secondary Osteosarcoma of the Femur Following Radiotherapy for Ewing’s Sarcoma
Authors: Reddy Ravikanth
Published: January 2023

Radiation-induced sarcoma is an exceedingly rare entity associated with high morbidity and mortality even if radiation is received several years prior. Aggressive cancer surveillance following radiotherapy is essential for improving survival rates in patients with radiation-induced sarcoma. Surgical resection with negative margins is the most important factor affecting long-term survival. This case report describes secondary osteosarcoma of the distal third of the femur in a 32-year-old female following previous radiotherapy treatment for Ewing’s sarcoma.
Light Microscopy and Ultrastructure of Body Wall in Leech Haemadipsa zeylanica
Authors: Anilkumar Usha , Jadhav Anita S.
Published: January 2023

Background Information:

Leeches are widely distributed worldwide in a diversity of habitats, such as freshwater, seas, desert, and oases. Since literature does not have an elaborate study on histology of leeches, thus emphasis is given to study the histology.

Aim:

The aim of this study is to examine the histology of free-living leeches Haemadipsa
zeylanica under light microscopy and extended to ultrastructural study under transmission electron microscopy.

Materials and Methods:

Tissue was fixed in 10% formalin, dehydrated with alcohol, infiltrated and embedded in wax, and thin section was cut using a rotary microtome. Sections were stained with hematoxylin and eosin.

Results:

The epithelial layer of cells in H. zeylanica had a thin layer of cuticles covering it. In light microscopy, the epidermis has three types of epidermal cells, namely, glandular cells (Type I, Type II, and Type III), supporting cells (Type IV), and pigment cells (Type V). When the three glandular cells of the body wall of H. zeylanica epidermis were examined under an electron microscope, three types of distinct electron-dense granules were identified. Type I cells with granules, Type II cells with course granules close to the dermis were identified as pear-shaped secretory cells, and Type III cells with electron-dense granules.