bluuebunny/crossref_metadata_2025 huggingface dataset:
The Influence of Profitability, Company Size, and Growth Opportunity on the Quality of Profits in Property and Real Estate Companies Listed on The Indonesian Stock Exchange (BEI) Year 2019-2022
Authors: WIDJAYANTI Putu Feby Silvia , SAPUTRA Komang Adi Kurniawan , LARASDIPUTRA Gde Deny
Published: April 2024

The importance of this research is that profit imbalance causes the company's profit quality to decline. If the quality of the company's profits decreases, it will cause errors in decision-making by users of financial reports. This study looks at the link between a firm's size, profitability, growth potential and the quality of its profits. All real estate and property firms listed on the Indonesia Stock Exchange between 2019 and 2022, whose financial reports are available to the public, comprise the research population. Saturated sampling is the sampling strategy employed in this investigation. The study sample comprised sixty-one real estate and property businesses on the Indonesia Stock Exchange (BEI). A total of 244 samples were used in the investigation during the four years. Data analysis approaches employed in this study included multiple linear analysis, hypothesis testing, classical assumption testing, and descriptive statistics. According to the study's findings, profitability significantly and favorably affects the quality of earnings; the size of the business significantly and favorably affects the quality of earnings, and growth opportunities somewhat but favorably affect the quality of earnings.
Analysis and Evaluation of Trends in Natural Disasters
Authors: Teknős László
Published: April 2024

Aim: The aim of this article is to examine the terminology behind natural disasters and to group them together to give readers an insight into the world of natural hazards. The author also aims to describe the quantitative changes that have occurred in recent years.Methodology: The definitions are based on the presentation of concepts used by key authorities. Categorisation and trend analysis is based on international discourse, databases and reports from relevant bodies and organisations.Findings: The security environment is changing dramatically. One reason for this is that there is a clear increase in a number of categories of natural events (disasters). As regards definitions, there is no uniform concept, but disasters are exceptional events with significant material damage.Value: Through the author’s analytical and evaluative work, the reader will gain insight into the world of natural disasters, a broad knowledge of the relevant literature, and valuable insights into global vulnerability and changing trends.
The X-Ray Emission Reveals the Coronal Activities of Semi-detached
Binaries
Authors: Liu Junhui , Wu Jianfeng
Published: April 2024

X-ray emission is an important tracer of stellar magnetic activity. We carried
out a systematic correlation analysis for the X-ray luminosity

log

L

X

, bolometric luminosity

log

L

bol

, and X-ray activity level

log
(

L

X

/L
bol) versus the binary parameters including orbital period P, Rossby number R
O, effective temperature T
eff, metallicity [Fe/H], the surface gravity

log
g

, stellar mass M, and radius
R, by assembling a large sample of
semi-detached (EB-type) binaries with X-ray emission (EBXs). The fact that both

log

L

X

and

log

L

bol

change in accordance with

log
P

indicates that X-ray emission originates from the convection
zone, while

log

L

X

is proportional to the convection zone area. We found that
EBXs with main-sequence components exhibit an upward and then a downward trend
in both the

log

T

eff

–

log

L

X

and M–

log

L

X

relations, which is different from the monotonically
decreasing trend shown by EBXs containing sub-giant and giant components. The
magnetic activity level is negatively correlated with

log

T

eff

and stellar mass. Based on the magnetic dynamo model, the
variations in the size and thickness of the surface convection zones can explain
the observed relations. EBXs with main-sequence components have a similar
R
O–

log
(

L

X

/

L

bol

)

relationship to that of the binaries in the clusters as
Praesepe and Hyade. We compared the X-ray radiation properties of EBXs with
those of the X-ray-emitting contact binaries and found that EBXs have broader
value ranges for

log

L

X

and

log
(

L

X

/L
bol).
Absorption and Self-absorption of [C ii] and [O i] Far Infrared Lines toward a Bright Bubble in the Nessie Infrared Dark Cloud
Authors: Jackson James M. , Whitaker J. Scott , Chambers Edward , Simon Robert , Guevara Cristian , Allingham David , Patterson Philippa , Killerby-Smith Nicholas , Askew Jacob , Vandenberg Thomas , Smith Howard A. , Sanhueza Patricio , Stephens Ian W. , Bonne Lars , Polles Fiorella L. , Schmiedeke Anika , Honigh Netty , Justen Matthias
Published: April 2024

Using the upGREAT instrument on board the Stratospheric Observatory for Infrared Astronomy, we imaged [C ii] 157.74 and [O i] 63.18 μm line emission from a bright photodissociation region (PDR) associated with an ionized bubble located in the Nessie Nebula, a filamentary infrared dark cloud. A comparison with Australia Telescope Compact Array data reveals a classic photodissociation region (PDR) structure, with a uniform progression from ionized gas, to photodissociated gas, and to molecular gas from the bubble’s interior to its exterior. [O i] line emission from the bubble’s PDR reveals self-absorption features. Toward a far-IR bright protostar, both [O i] and [C ii] show an absorption feature at a velocity of −18 km s−1, the same velocity as an unrelated foreground molecular cloud. Since the gas density in typical molecular clouds is well below the [O i] and [C ii] critical densities, the excitation temperatures for both lines are low (∼20 K). The Meudon models demonstrate that the surface of a molecular cloud, externally illuminated by a standard G
0 = 1 interstellar radiation field, can produce absorption features in both transitions. Thus, the commonly observed [O i] and [C ii] self-absorption and absorption features plausibly arise from the subthermally excited, externally illuminated photodissociated envelopes of molecular clouds. The luminous young stellar object AGAL337.916-00.477, located precisely where the expanding bubble strikes the Nessie filament, is associated with two shock tracers: NH3 (3,3) maser emission and SiO 2−1 emission, indicating an interaction between the bubble and the filament. The interaction of the expanding bubble with its parental dense filament has triggered star formation.
A Coronal Mass Ejection Impacting Parker Solar Probe at 14 Solar Radii
Authors: Braga Carlos R. , Jagarlamudi Vamsee Krishna , Vourlidas Angelos , Stenborg Guillermo , Nieves-Chinchilla Teresa
Published: April 2024

The relationship between CME properties in the corona and their interplanetary counterparts is not well understood. Until recently, a wide spatial gap existed between the two regions, which prevented us from disentangling the spatial and temporal evolution of CMEs. NASA’s Parker Solar Probe (PSP) has imaged multiple CMEs since its launch in 2018, but these events either intercepted the spacecraft far from the corona or completely missed it. Here we describe one of the first CMEs observed simultaneously by remote sensing and in situ instruments, and compare the corresponding measured properties, such as orientation, cross section diameter, density, and speed. The CME encounter occurred on 2022 June 2, while PSP was around 14 solar radii from the Sun center. We reconstruct the CME with forward modeling and determine its morphology and kinematics. The reconstruction suggests that PSP misses the CME apex but encounters its flank. The encounter time matches the period when the PSP in situ measurements indicate the passage of a CME. We also reconstruct the flux rope diameter and orientation using the in situ magnetic field measurements. The results are consistent with the CME reconstruction from imaging data. The close agreement between remote sensing and in situ analyses suggests that discrepancies found in past studies are more likely associated with the CME temporal evolution. We also find that the magnetic field of the CME flank extrapolated to 1 au is well below the average solar wind background and likely indistinguishable from it. This point could explain past events where the CMEs' interplanetary counterparts were not identified.
Separation axioms via novel operators in the frame of topological spaces and applications
Authors: Alqahtani Mesfer H. , Abd El-latif Alaa M.
Published: April 2024

In this work, we introduce a very wide category of open sets in topological spaces, called $ \aleph $-open sets. We study the category of $ \aleph $-open sets that contains $ \beta $-open sets in addition to $ \beta^{\ast} $-open and $ e^{\ast} $-open sets. We present the essential properties of this class and disclose its relationships with many different classes of open sets with the help of concrete counterexamples. In addition, we introduce the $ \aleph $-interior and $ \aleph $-closure operators. Moreover, we study the concept of $ \aleph $-continuity of functions inspired by the classes of $ \aleph $-open and $ \aleph $-closed sets. Also, we discuss some kinds of separation axioms and some theorems related to the graph of functions.
« Être plusieurs publics à la fois, mais pas toujours » : Une sociologie territorialisée des publics de l’art contemporain
Authors: Ullauri Lloré Elisa
Published: April 2024

Cet article explore les limites entre les catégories de publics et de non-publics de l'art contemporain en prenant en considération la diversité des pratiques culturelles, de loisir et d'utilisation de l'espace, observée dans le contexte local du FRAC Sud, implanté dans un quartier en rénovation à Marseille. Nous analysons comment les enjeux matériels et symboliques, liés à une intégration parfois problématique, contribuent à remodeler des relations souples entre des micro-publics et l'art contemporain.
The glass in early al-Andalus
Authors: Ares Jorge de Juan
Published: April 2024

The expansion of Islam in the western Mediterranean led to far-reaching changes in the conquered societies. The study of glass assemblages found in archaeological contexts dating back to the early centuries of al-Andalus, coupled with analytical research and written sources, has emerged as a valuable resource for analysing these transformations. In eighth and early ninth centuries glassmakers were forced to recycle late antique materials due to the end of raw glass imports from the East but also, they developed new glassmaking methods using locally available resources. The import of eastern finished vessels served as prototypes of the new shapes and decorations to the vessels produced in the workshops of al-Andalus. These changes resulted in the long term in the configuration of clearly “Islamised” wares, in a different system of glass production and distribution from that which prevailed from antiquity to the Visigothic period.
A new perspective: the “WINDOWGLASSMED” project
Authors: Bertini Camilla
Published: April 2024

Despite an apparent contraction of long-distant trade suggested by Pirenne,1 recent analytical studies suggest that glass was still traded to Europe from Egypt and the Levant where it was originally produced during the Early Medieval period.2 The overall picture that emerges from these data though is far from clear. In addition, there is no doubt that Early Medieval glass chemical composition has been heavily influenced by recycling and mixing recycling practices over the years,3 but at the same time, “contemporary” produced compositions (such as Levantine – Apollonia type, Foy 2, or plant ash) were also circulating at the time together with this highly recycled glass.4 There is no doubt therefore that our understanding of glass production is still partial to this day and that more works needs to be done, especially that e a broader range. The idea for the WINDOGLASSMED project stems from these premises. By analysing glass samples from different part of Western Europe for LA-ICP-MS and isotopic analysis (Sr and Nd), this project will be the first detailed multidisciplinary study focused on well-dated 7th–10th century to create a detailed, chronologically-resolved map of Early Medieval glass in Western Europe, reflecting both trade patterns and practices such as recycling.
Fuentes fiscales y notariales valencianas para el estudio del transporte marítimo de alumbre a finales del siglo XV
Authors: Igual Luis David
Published: April 2024

El artículo analiza veinte documentos provenientes de fuentes fiscales y notariales de la ciudad de Valencia entre 1459 y 1505, que se refieren al transporte marítimo del alumbre. Comienza con el resumen de las principales características de las fuentes, tanto el denominado manifest de mar (una fuente aduanera sobre el comercio marítimo de importación), como el fondo de los protocolos de Jaume Salvador (que contienen contratos de fletamento de mercancías). Después detalla el contenido de las veinte noticias seleccionadas, desde dos puntos de vista: la participación en los negocios de grupos variados de operadores económicos y el desarrollo material de los transportes. El texto concluye con la hipótesis que, en Valencia, pudieron existir diversos modelos de mercados de materias primas, entre los cuales el del alumbre poseyó características específicas.
La circulation des aluns au Quattrocento
Authors: Boisseuil Didier , Chareille Pascal , Ait Ivana
Published: April 2024

À travers l’analyse d’une documentation conservée dans les fonds de la « Camera Apostolica », les auteurs se proposent de caractériser la circulation de l’alun produit à Tolfa dans la seconde moitié du XVe siècle, expédié par le port de Civitavecchia dans le bassin méditerranéen et l’Atlantique.
Le commerce des aluns dans la documentation comptable : l’exemple du fonds Salviati
Authors: Scherman Matthieu
Published: April 2024

L’importance du commerce des aluns dans les flux méditerranéens et entre la Méditerranée et les territoires de l’Europe du Nord-Ouest se perçoit, paradoxalement, dans les petites quantités qui peuvent se trouver dans les différents documents ayant trait à la marchandise. Les Italiens, et parmi eux les Florentins, sont nombreux à trafiquer dans le commerce des aluns. Les sources issues de la pratique marchande ont comme avantage d’apporter une connaissance qualitative au commerce des aluns, mais elles ne peuvent pas donner une pesée globale, ni caractériser des évolutions en raison de la faiblesse numérique des comptabilités retrouvées.
La circulation des aluns à Sienne à la fin du Moyen Âge
Authors: Giacchetto Marco
Published: April 2024

Le présent ouvrage, à travers de nouveaux documents inédits, décrit les principales étapes de l'essor de l'alun sur le marché siennois entre le XIVe et le XVe siècle. Grâce aux sources fiscales communales, il est tout d'abord possible de mettre en évidence les principaux moments d'accélération et de rupture avec le passé. Ce n'est qu'au moment où l'alun devient une denrée sensible sur le marché siennois que les élites de la ville s'intéressent à ce minéral. D'autre part, la centralisation de plusieurs acteurs économiques, étroitement liés les uns aux autres, au sein d'un marché commercial restreint et politiquement concurrentiel, a mis en évidence l'incapacité des institutions classiques, chargées de résoudre les conflits commerciaux, à remplir efficacement leurs fonctions sans recourir à la dynamique du système politique.
Construction and Application of a College English Blended Teaching System Based on Multi-Source Data Fusion
Authors: Xi Hongyan , Sang Dongyan
Published: April 2024

By using modern data analysis techniques, this study aims to construct an innovative university English teaching effectiveness evaluation model based on particle swarm algorithm and support vector machine. The model is designed to improve assessment accuracy and personalization. The research process includes the methodology of data collection, preprocessing, model construction and evaluation. The experimental results show that the model can more accurately assess students' English learning effectiveness and provide customized suggestions for personalized education. This research is important for improving the quality of university English education, promoting personalized learning, and providing support tools for educational decision makers.
Comparison of Static and Dynamic Mechanical Response of Aluminum 6061 Subjected to Multi-Directional Forging
Authors: Bahat Burak , Yapici Guney Guven
Published: April 2024

The present investigation focuses on the implementation of the multi-axial forging process, recognized as a severe plastic deformation (SPD) technique, with the aim of elevating the mechanical features of the widely employed Al 6061 alloy. Specifically utilized in the automotive and aviation industries, this alloy's behavior was meticulously examined through a series of quasi-static and dynamic tests. To achieve this objective, the multi-directional forging (MDF) process was implemented for up to three cycles, involving a total of nine passes, at a raised temperature of 200 °C. Subsequently, the severely deformed material underwent utilizing high strain rate loading for the Split Hopkinson Pressure Bar (SHPB) test system. After MDF, the grain size is refined down to below 11 microns with a starting grain size of 13 microns. This is reflected as increased hardness and yield strength in the quasi-static regime. For SHPB characterization, increased dynamic strength is also observed. However, although the yield strength showed about 60% increase with decent ductility, the maximum dynamic strength increased about 10% after SPD with a relatively brittle behavior.
Signal Processing Technique to Study the Propagation Modes of Ultrasonic Waves in Wood Protected by Layers of Liquid Paint (Cement)
Authors: Tafkirte Mounir , Hamine Adil
Published: April 2024

Several techniques based on ultrasound have been proposed for non-destructive evaluation (NDE). It has been widely applied in many fields such as medicine, mechanical, and construction, especially for the detection of cracks and flaws in structures and for the identification of material properties, which is capable of performing tasks to provide quick measurements while guaranteeing great accuracy. In this paper, we have developed the technique of ultrasonic transmission by water immersion as an alternative technique to study the propagation of ultrasonic waves in two structural materials: wood and wood protected by liquid paint (cement). Overall, the application of the transmission technique by change of the angle of incidence enables the demonstration of the experimental dispersion curves for the ultrasonic modes within the plates and allows the investigation and characterization of the function of the paint system (cement) in the wood plate.
Mechanical Properties on Concrete by Replacing Fine Aggregate with Glass Waste Particles: An Experimental Study
Authors: Karthik C. , Suresh S.
Published: April 2024

Glass wastes are generated by various sectors is creating an environmental issue in our country. The reuse and recycling of Glass Waste Particles (GWP) is a way to reduce the environmental issues, cost of waste management and create sustainable environment. Construction industry is consumed major natural resources by the way of utilizing raw materials particularly making a concrete. The main aim of this experimental investigation is to obtain mechanical properties on concrete by replacing fine aggregate with GWP. In this study, fine aggregate was replaced with GWP from 0% to 40% in the interval of 10%. Based on the test results on concrete by replacement of fine aggregate in its weight of GWP were discussed in terms of compressive, split tensile and flexural strengths. Replacement level of GWP more than 30% produces lower strength. The replacement level of GWP between 20% and 30% in conventional mix may suit at construction industry. However, durability studies are required to study the long-term effect on concrete by replacing fine aggregate with GWP.
Research of Future Generation Multiservice Telecommunication Networks Based on SDN Technology
Authors: Ismayılov Togrul
Published: April 2024

This paper analyzes the performance indicators multiservice telecommunication networks based on the future network architectural concept using end-to-end digital technologies. Based on the study, a new approach to constructing a mathematical model of the efficiency of an SDN network is proposed. Based on the model, analytical expressions were obtained to evaluate the performance switches and controllers of the software defined networking network using the OpenFlow protocols.
Research Efficiency Functioning Wireless Cellular Networks Taking into Account Modern Energy Saving Technologies
Authors: Ibrahimov Bayram , Nabieva Asmar , Hamidova Aygun
Published: April 2024

The performance indicators of the functioning wireless cellular networks when using Wi-Fi & WiMAX systems are analyzed, taking into account modern energy-saving technologies. The Wi-Fi & Wi-MAX standards technologies have been studied, and a number energy saving mechanisms are being studied. The main idea is considered, which is to periodically turn off the radio-transmitting interface and the modem server to save energy while listening to the communication channel.
Evaluation of Recycled Polypropylene (PP) Made from Plastic Cups as Filaments for Additive Manufacturing
Authors: Abdon Ria Grace P. , Barbastro Shanlaine F. , Francisco Kian James C. , Quicay Cedric John D.
Published: April 2024

Plastic waste is one of the most problematic wastes produced daily. A potential solution to this problem is to recycle and convert them into filaments for 3D printing. This study aims to prepare recycled polypropylene (rPP) from plastic cups and convert them into filaments for 3D printing using an extrusion process. It also aims to produce a quality printout and compare its mechanical properties with a commercial filament, polylactic acid (PLA). In this study, rPP cups were collected and treated to undergo an extrusion process. A temperature calibration tower was then fabricated to determine the ideal temperature settings for printing. Lastly a total of 24 tensile and flexural specimens were printed utilizing both rPP and PLA, facilitating a comparative evaluation of their mechanical properties. Results showed that the best extruder heater settings were 240°C, 235°C, 210°C, and 180°C from heat zone 1 to 4. The ideal printing temperature for rPP material was established at 230°C. The application of polypropylene packaging tapes, hairspray, and incorporation of a brim around the model proved effective in mitigating warpage during the printing process. Mechanical testing indicated an average tensile strength and flexural strength of 24.5 MPa and 45 MPa, respectively. In contrast the average tensile strength and flexural strength for PLA was measured at 43 MPa and 80 MPa respectively. It is clear that PLA demonstrated higher outcomes, but it lacks durability and flexibility exhibited by rPP.
Measuring the Tendency of the Age Groups of the Population to the Digitalization of the Transport Infrastructure in Azerbaijan
Authors: Alizada Elvin , Mammadov Niyazi
Published: April 2024

The article presents information about the measurement of the tendency of age groups toward the digitalization of the transport infrastructure in Azerbaijan according to the results of the survey conducted. Also, this article provides statistical data on the tendency of population age groups to the digitalization around the world. Results of the survey analyzed in 5 age groups, correlations between age, frequency of public transport usage, Wi-Fi outdoor usage frequency and frequency of top-up online founded and the tendency has been determined.
Influence of Friction Conditions and Structural Refining on the Tribological Behavior of Titanium
Authors: Stolyarov Vladimir
Published: April 2024

Titanium and its alloys have a wide range of applications in various industries, including medicine. However, the low strength and high friction coefficient hinder their development in contact friction due to fretting fatigue. Among many factors, structure refinement, temperature and amplitude are the most responsible for fretting wear of structural materials. The purpose of the article is to investigate the effect of displacement amplitude, size of grain and test temperature on the fretting wear of the pure titanium in coarse-grained and ultrafine-grained states. It is shown that an increase in the test temperature for both structural states leads to a multiple increase in wear. Structural refinement of titanium to hundreds of nanometers helps to reduce wear at room and elevated temperatures.
An Evaluation of the Land-Use Changes and the Associated Environmental Impact of Coastal Tourist Destinations: A Comparative Study of the Hikkaduwa and Bentota Sites
Authors: Wijerathne K. B. P. C. A. , Bandara T. W. M. T. W. , Athukorala W.
Published: April 2024

The study focuses on the analysis of land-use patterns and environmental impact in two coastal tourist destinations in the Southern coast of Sri Lanka: Hikkaduwa and Bentota. The aim was to assess how tourism has influenced land-use changes and the associated environmental problems. Primary and secondary data were collected through questionnaires, mapping techniques and remote sensing tools. The findings revealed significant transformations in both areas over time.In Hikkaduwa, coconut plantation lands decreased by 22.54%, rice cultivation lands by 8.27%, and mixed vegetation lands by 2.21%. Similarly, Bentota experienced reductions in coconut, rice, and mixed vegetation lands by 15.28%, 16.5%, and 1.16%, respectively. However, built land increased by 30.41% in Hikkaduwa and 22.03% in Bentota. The study also highlighted a shift in land-use patterns. Hikkaduwa transitioned from a proportional mixed land-use to a dominant land-use type, while Bentota maintained a more balanced proportion of major land uses.Moreover, Hikkaduwa faced severe environmental problems compared to Bentota, emphasizing the need for a formal and sustainable land-use plan in Hikkaduwa. The involvement of stakeholders responsible for land use, tourism development and environmental conservation was deemed crucial for achieving this. The findings underscore the importance of implementing sustainable land-use practices and effective environmental management to ensure the long-term sustainability of the popular tourist destinations.
Is there any relationship between scoliosis, cervical pain and postural imbalance in Parkinson’s disease? A cross-sectional pilot study
Authors: Ronconi Gianpaolo , Gatto Dario Mattia , Ariani Mariantonietta , Codazza Sefora , Ingravalle Fabio , Ferriero Giorgio , Coraci Daniele , Ferrara Paola Emilia
Published: April 2024

Parkinson's disease (PD) is defined by progressive worsening of gait, posture, and balance, as well as disability in daily life activities, and improvement in chronic musculoskeletal pain, particularly neck pain associated with worsening of balance. The study's goal is to look into the relationship between scoliosis, balance, and cervical pain in Parkinson's disease patients. Cross-sectional, pilot study. The study included 16 Parkinson's patients. Neck cervical pain was measured using the pain visual analogue scale and the short form McGill pain questionnaire, while dynamic balance was assessed using static balance, Tinetti, Berg Balance, and the Short Physical Performance Battery scales (SPPB). Cobb angles are measured on a whole-spine standard X-ray to assess spinal scoliosis.An observational statistical analysis was performed with patients subdivided into two groups: non-scoliosis (NS) and true scoliosis (TS) based on whether they presented a Cobb's angle below or ≥10°. Neck pain was reported by 37% (n=3) of participants in the NS group versus 50% (n=4) in the TS group. Neck pain was more prevalent in patients with a disease duration of less than 48 months (n=6; 75.0% vs n=1; 12.5%; p-value < 0.05). Scoliosis, cervical pain, and postural imbalance are all significant but often overlooked Parkinson's disease complaints.
Sudden cardiac death in the young. From gross to molecular autopsy
Authors: Thiene Gaetano , Basso Cristina , De Gaspari Monica , Rizzo Stefania
Published: April 2024

Sudden Cardiac Death (SCD) may complicate diseases of the heart and great vessels. The cause is easily visible at the naked eye at autopsy in the presence of coronary thrombosis, aortic dissection, pulmonary thromboembolism, or at the microscope with histological anomalies (inflammation, necrosis, storage, fibrosis). However, there are cases of SCD in which the heart appears normal, both at gross and histological examination. They may present electrocardiogram (ECG) disorders of depolarization and repolarization of myocardial electrical activity (long and short QT, repolarization syndrome) or of electro-mechanical coupling (catecholaminergic ventricular tachycardia), due to alterations of Na+, K+or Ca++ flows, known as channelopathies. They are genetic, hereditary morbid entities transmitted at the time of conception. Molecular studies of SCD at autopsy include both the detection of viral genomes in inflammatory cardiomyopathies and gene mutations in either structural or nonstructural genetically determined heart diseases.
Histopathological features of nine cases of primary orbital and ocular adnexal lymphoma
Authors: Al-Maghrabi Jaudah , Waheeb Saad
Published: April 2024

PURPOSE:

Primary orbital and ocular adnexal lymphoma (POAL) is very rare. Yet, limited data are available based on the pattern of POAL in Saudi Arabia. The study aimed to evaluate their pathological features in a cohort of patients at two tertiary hospitals.

METHODS:

All cases diagnosed with POAL in two tertiary hospitals between June 2003 and March 2023 were included. Histopathological and immunohistochemical slides were reviewed. Clinical data were collected. Additional immunohistochemistry stains were performed in selected cases.

RESULTS:

There were nine cases of POAL. Patients’ ages ranged between 30 and 64 years (median years and mean 50.1 years), with 4 (44%) males and 5 (56%) females. The clinical manifestations included protrusion of the eye, palpable mass, conjunctival swelling, pain, foreign-body sensation, and visual disturbances. Pathological evaluation revealed 4 low-grade mucosa-associated lymphoid tissue (MALT) lymphomas, 2 diffuse large B-cell lymphomas (DLBCLs), 1 T-cell lymphoblastic lymphoma/leukemia, 1 B-cell lymphoblastic lymphoma/leukemia, and G1 follicular lymphoma.

CONCLUSION:

MALT lymphomas represented the most common lymphoma type, followed by DLBCL, which is similar to studies reported worldwide. Other studies are required to highlight more about the pattern of these diseases in the kingdom.
Transport and Scale Interactions in Geophysical Flows
Authors: Franzke Christian , Oliver Marcel , Rademacher Jens , Rypina Irina
Published: April 2024

This interdisciplinary workshop brought together researchers working on different aspects of transport and scale interactions across the spectrum of geophysical fluid dynamics: geometry and computation of transport and exchange processes in geophysical flows, Lagrangian coherent structures, (geo-strophic) turbulence, nonlinear waves and coherent structures in the Eulerian description of fluids, and stochastic methods in multiscale systems. Each of these topics have their own vibrant communities as well as well-established and emerging connections. This meeting aimed to bridge across the entire span of topics from a dynamical systems perspective, and to connect classical approaches with new developments in data-driven modeling and stochastic modeling.
Therapeutic potentials of Vernonia amygdalina in thioacetamide-induced neurotoxicity in the CA1 hippocampal subfield via inhibition of microglial activation
Authors: Adelodun Taiye S. , Abijo Ayodeji Z. , Maryjane Osuoha O. , Olatunji Sunday Y. , Elijah Arayombo B.
Published: April 2024

Thioacetamide (TAA)-induced hepatic encephalopathy (HE) has been reported in several studies. Sequel to acute or chronic liver failure, there is impairment in the hippocampal structure and hippocampal-mediated functions. The precise pathophysiological mechanism leading to neurological alterations remains elusive. The hippocampus also has rarely been examined in HE, hence this study. Vernonia amygdalina (VA) which possesses diverse biological activities has been studied and has promising therapeutic potential in several neurodegenerative diseases. Here, we investigated the neuroprotective activities of Vernonia amygdalina against thioacetamide-induced neuronal damage in the CA1 region of the hippocampus in the rat model. Thirty male Wistar rats were divided into five groups A-E (n=6). Group A (control) was the placebo and was administered 2mL/kg distilled water, group B was administered 100mg/kg thioacetamide only. Groups C-E were administered 100mg/kg of thioacetamide and were subsequently treated with 100mg/kg VA, 200mg/kg VA, and 3mg/kg vitamin C respectively. All administration was carried out for 14 days duration orally. Neurobehavioral tests were conducted. Required brain tissues for biochemical analyses were harvested following rat sacrifice. Glucose-6-phosphate dehydrogenase activity and hippocampal Glutamate levels were evaluated. Histological stains (H&E and cresyl violet) and immunohistochemical expression of Iba-1 protein (microglial marker) were used to assess neuroinflammation and neurodegeneration in the CA1 subfield. Statistical analyses were carried out using Graph pad prism 5 and all results were expressed as Mean±SEM. Means differences were identified by Tukey’s post hoc test. Statistical significance was set at (p< 0.05). The neurobehavioral test results showed an observable increase in anxiety and impaired spatial working memory of the Wistar rats while glutamate (p = 0.6187; F =0.6844) and G6PDH activity (p = 0.6187; F= 0.9486) were not significantly different across groups. Thioacetamide treatment also resulted in neuroinflammation vis-à-vis microglial activation, causing neurodegeneration in the CA1 subfield. Vernonia amygdalina treatment ameliorated these neurotoxic changes. Altogether, Vernonia amygdalina treatment ameliorated thioacetamide-induced neurotoxicity in the CA1 region of the hippocampus via anti-neuroinflammatory and neuroprotective mechanisms.
The Nigerian Nurse: Delivering quality services despite increasing challenges
Authors: Garba Saleh N.
Published: April 2024

No Abstract.
Experience of respectful maternity care among women of reproductive Age attending health Care Centre in Ilorin Kwara State
Authors: Titi Kadir Aminat , Idowu Fadare Risikat
Published: April 2024

No Abstract.
Infant feeding practices among mothers of children between 6-24 months attending immunization clinical at National Hospital Abuja
Authors: Ubosi N.I. , Gambo D.S. , Okoroiwu G.I.A. , Adegor E.C.
Published: April 2024

No Abstract
Adsorption efficiency of chitosan obtained from Schistocerca gregaria for Fe2+ and Zn2+ metals
Authors: Abubakar Mubarak , Hassan Lawal G. , Sani Nasiru A. , Aminu Nafiu , Yahaya Shamsuddeen
Published: April 2024

A number of technologies for wastewater treatment have been developed  and used over the years, but adsorption comes into  prominence and gained  wide recognition due to its simple handling, flexibility in design, high  efficiency, reversible nature for multiple  uses, high-quality treatment, and  adsorbent availability. Chitosan obtained from desert locust (S. gregaria)  exoskeleton emerged as best  candidate as a sorbent for heavy metals  removal via adsorption process in aqueous solution. Isolation of chitosan  involved three  main stages, includes demineralization, deprotenization and  deacetylation. Chitosan was characterized using Fourier Transform Infrared  Spectroscopy (FTIR) and X-ray diffraction (XRD). The affinity of chitosan for  Fe (II) and Zn (II) ions solutions adsorbed under different  conditions was  evaluated using atomic adsorption spectroscopy. And the result showed that  the equilibrium percentage adsorption of  Fe2+ was 95 %, 95 %, 96 %, 96.2  %, and 95.8 % and the quantity of Fe2+ adsorbed was 5.98, 5.96, 6, 6.1 and  5.98 (mg/g) while the  equilibrium percentage adsorption of Zn2+ was 78 %,  83 %, 86 %, 87 %, and 89 % and the quantity of Zn2+ adsorbed was 5, 5.2,  5.3, 5.4  and 5.6 (mg/g) at contact time 10, 20, 30, 40 and 50 mins. The effect of adsorbent dose and contact time were studied, as the result  revealed that increment of adsorbent dosage which provides more binding  sites used for metal adsorption, leads to the increase in  quantity of Fe2+ and  Zn2+ adsorbed and their percentage removal.
Development of Fe3O4 Nanoparticles for the Removal of Some Toxic Metals from Pharmaceutical Wastewater
Authors: Mathew John T. , Musah Monday , Azeh Yakubu , Mohammed Musa
Published: April 2024

Among the most significant sources of environmental contamination are pharmaceutical wastewaters, which are often contaminated  with heavy metals that pose significant threats to ecosystems as well as public health. The nanoparticles was characterized using XRD,  HRSEM/EDX and FTIR. The XRD analysis of the nanoparticles identified 2θ (theta), of 30.2º, 36.3º, 44.2º, 54.3º, 58.2º, 63.5º, and 74.6º which  correspond to the crystal lattice planes of (220), (311), (400), (422), (511), (440), and (533), respectively. The diffraction peaks associated  with Fe3O4 at 2θ of 18.02º, 29.4º, and 43.3º, related to the crystal planes of (111), (220), and (400), respectively of the Fe3O4 phase. The  HRSEM image of the nanoparticles exhibited spherical-shaped structures of Fe3O4, and some irregular shapes. The effects of the dosage;  consequently, the impact of the quantity of adsorbent used, ranging from 0.1 to 0.3 g, has been investigated. The results  indicate that as the amount of adsorbent is increased from 0.1 to 0.3 g, the effectiveness of adsorption improves, while temperature, the  efficiency improved from 50.03% to 78.01% for Pb ions, from 52.15% to 82.43% for Cd ions, and from 56.41% to 88.71% for Cu ions and  contact time; the removal efficiency for Pb ions rises from 25.49% to 68.43%, for Cd ions from 29.30% to 75.71%, and for Cu ions from  31.08% to 78.31%, respectively, on the removal percentage of toxic metal ions were studied.. This research offers a sustainable and eco- friendly solution to mitigate toxic metal contamination in pharmaceutical effluents, protecting the environment and human well-being  while advancing the field of wastewater treatment.
PANCONF 2023 Annual General Conference
Authors: Ezechukwu Clement C
Published: April 2024

No abstract.
Anti-cholinergic syndrome following accidental poisoning with cyproheptadine in a Nigerian toddler: A case report
Authors: Asare Tolulope , Adekanmbi Folashade , Udeh Stella , Gbadebo Ayisat
Published: April 2024

Cyproheptadine is an antihistamine that is also used as appetite stimulant in children. We report a three-year old who developed anticholinergic syndrome following accidental ingestion of a large dose of cyproheptadine. The child was conservatively managed, and he recovered fully with no immediate sequelae. We report this case to create awareness on the harmful effects of cyproheptadine ingestion.
The global point prevalence survey of antimicrobial consumption and resistance (Global-PPS): First results of antimicrobial prescribing in a children hospital in Nigeria
Authors: Aghogorvia Titilayo M. , Ola-Bello Olafoyekemi , Mabogunje Cecilia , Versporten Ann , Pauwels Ines , Goossens Herman , Aina Olugbenga , Roberts Alero A. , Akinjole Janet O. , Oduyebo Oyinlola O.
Published: April 2024

Background: Antimicrobial stewardship is vital for our hospital practice but it requires a knowledge of antibiotic prescribing practices,  which is  currently lacking. This survey aimed to assess the antimicrobial prescribing practices in our hospital.
Method: To obtain baseline information on antimicrobial prescribing practices, a uniform and standardized method for surveillance of antibiotic use in hospitals was  employed. A point prevalence survey (PPS) was  conducted in all the wards of the Massey Street Children’s hospital in June 2019. The PPS  included all in patients receiving an antimicrobial on the day of survey. Data collected included age, gender, antimicrobial  agents, microbiological data, and compliance to guidelines, documentation of reasons and stop/ review date of prescription. The denominator was the number of eligible patients. A web-based application developed by the University of Antwerp was used for data- entry, validation and reporting.
Results: Sixty-seven children were eligible, of which 62 (92%) CC –BY 4.0 received 128 antimicrobials. Fifty-  seven (85%) were on multiple antimicrobial therapies, and route of administration was parenteral in 86%. All prescriptions were empiric.  Reasons for prescribing were documented in 121(94.5%) therapies in case notes; Stop/ review dates were not documented in 126(98.4%).  The most frequently  prescribed antibiotics we recefuroxime ( 1 8 % ) , Ampicillin-sulbactam (15%) and gentamicin (12%). Antibiotic guidelines were not  available. Most common diagnoses were sepsis (42%), pneumonia (15%) and malaria (9%).
Conclusion: This survey  revealed very high antimicrobial prescribing rates in the hospital and the need to assess its appropriateness. We disclosed areas to improve antibiotic prescribing: antibiotic prescribing according to guidelines and low reporting of a stop/review date. There is a  need to create awareness for evidence based antibiotic guidelines.
Achalasia cardia: An uncommon cause of aspiration syndrome in infancy
Authors: Wilson Osarogiagbon O. , Chizoba Efobi A. , Emmanuel Eyo-Ita U. , Nandom Benjamin
Published: April 2024

Achalasia is a primary oesophageal motility disorder characterized by the absence of Oesophageal peristalsis and impaired lower  oesophageal sphincter (LES) relaxation in response to swallowing leading to functional obstruction at the gastroesophageal CC –BY 4.0 junction. It is unusual in childhood and extremely rare in infants. We report a case of Achalasia cardia in a twomonth bold infant treated with anterior oesophago-cardio- gastromyo to my ( Modified Heller’s procedure).
Cord Blood Hepatic Enzymes as Biochemical Correlates of Hypoxic-Ischaemic Encephalopathy and Immediate Postnatal Outcome in Term Asphyxiated Babies
Authors: Ariyibi Solomon O. , Ojuawo Ayodele I. , Adesiyun Omotayo O. , Adebara Olufunmilayo V. , Biliaminu Sikiru A. , Bolakale Aishat O.
Published: April 2024

Background: The untoward effect of perinatal asphyxia on newborns cannot be over-emphasised.
Objective: This study aimed to determine whether hepatic enzymes can serve as biochemical correlates of hypoxic-ischaemic encephalopathy (HIE) and immediate outcomes.
Methods: This cross-sectional study was conducted at the neonatal intensive care unit for 15 months among 70 asphyxiated and 70 healthy neonates. The clinical staging of HIE was based on the Sarnat and Sarnat classification system. A cord blood sample was obtained for the assay of Aspartate aminotransferase (AST), Alanine aminotransferase (ALT), and Lactate dehydrogenase (LDH). The enzymatic assay was performed using the spectrophotometric method.
Results: There was a significant positive correlation between AST (r = 0.644, p <0.001), ALT (r = 0.364, p = 0.002), LDH (r = 0.377, p = 0.001), and the stages of HIE. AST correlated best with the severity of asphyxia (r = 0.644, p <0.001). Of the five mortalities in this series, the cord blood enzyme levels were significantly higher than in those that survived (p <0.05), and all the enzymes demonstrated a positive correlation with mortality, best with ALT (r = 0.354, p = 0.003).
Conclusion: The worse the degree of perinatal asphyxia in the newborn, the higher the serum hepatic enzymes. Elevation of serum hepatic enzymes may also be associated with the risk of death in such babies. Efforts should be made to prevent severe perinatal asphyxia, and when it becomes inevitable, appropriate and prompt management should be instituted to limit the risk of poor outcomes.
STATISTICAL ANALYSIS OF Li CONCENTRATION AND THE 6Li/7Li ISOTOPIC RATIO FROM SPECIFIC PROVENANCE ENVIRONMENTS
Authors:   National Research and Development Institute for Cryogenics and Isotopic Technologies - ICSI Rm. Valcea, Iordache Andreea
Published: April 2024

Starting from the necessity of a geospatial footprint existence of mineral waters in Romania, this study followed lithium concentration distribution and the 6Li/7Li isotopic ratio using the ICP-MS technique. Stable isotopes are potent tracers of chemical and biological transformations in natural environments. Lithium is commonly found as a dissolved species in groundwater and surface water, making this valuable metal a conservative tracer in hydrogeological studies. This study followed the geographical distribution of lithium concentrations and the 6Li/7Li isotopic ratio, considering the comparative characterization of Romanian waters (from different geographical regions) and foreign waters sold on the Romanian market and independent food stores. The determination of the median values was based on the bootstrap method, which allowed the identification of high values of the standard errors in the case of Li concentration in the approved waters and the organic material. In the case of the isotopic ratio, the highest value is found in foreign waters. The waters of Southern Muntenia presented significantly different values compared to all other regions, having the lowest concentration of Li (0.44 µg/L) but having the highest isotopic ratio (0.10). The waters of the S-W Oltenia and Central Transylvania regions have the highest concentrations of Li, respectively 10.45 µg/L and 10.03 µg/L, much lower than the values of the other regions. Also, the organic material shows a degree of Li concentration dispersion but the slightest variation in the isotopic ratio. The involvement in human health of Li exposure is needed for further investigation even if no regulation on the safe limits of Li in drinking water for humans is addressed
Permiso para creer, licencia para dudar: el discernimiento de espíritus como dispositivo teológico clave en la historia religiosa de Occidente
Authors: Campagne Fabián Alejandro
Published: April 2024

Durante el primer milenio cristiano el fabuloso carisma de discretio spirituum fue ejercido con amplia libertad por muchos santos que lograron trascender las constricciones de la Iglesia institucional. Desde fines de la Edad Media, por el contrario, el don de discernimiento fue sometido al pleno control de la religión oficial: la religiosidad carismática comenzó a perder a partir de entonces gran parte de la autonomía y libertad que había gozado durante siglos. Finalmente, desde fines de la Edad Moderna el carisma de la probatio spirituum desapareció sin demasiados preámbulos del discurso oficial, que solamente aludió de allí en más al arte de discernir entendido como un know how terrenal, colectivamente construido, sustentado en probabilidades y conjeturas, ajeno a toda pretensión de infalibilidad y que no obliga a los creyentes a abrazar de manera compulsiva las conclusiones a las que el orden sacerdotal arriba.
A model to form moral and volitional qualities in employees of security units of correctional facilities of the Federal Penitentiary Service of Russia
Authors: Викторова Т.В.
Published: April 2024

В статье представлена модель формирования морально-волевых качеств у сотрудников отделов охраны исправительных учреждений ФСИН России. Новизна представленной модели заключается в том, что в ее основе определены этапы построения модели, разработан технологический инструментарий, определены критерии и показатели уровней сформированности морально-волевых качеств у сотрудников отделов охраны.

The article presents a model for the formation of moral and volitional qualities among employees of correctional institutions of the Federal Penitentiary Service of Russia. The novelty of the presented model lies in the fact that it is based on model construction stages, technological tools are developed, criteria and indicators of the levels of formation of moral and volitional qualities among employees of security units are determined