bluuebunny/crossref_metadata_2025 huggingface dataset:
Simulation of sampling processes of pot crab orders from a great depth
Authors: Osipov Evgenyi
Published: April 2023

A model for calculating the processes of sampling trapping crab orders from great depths is proposed. The sampling process was simulated with a uniform sampling process using nodal connections when connecting traps to the line. Simulation of hauling processes when hauling was stopped and the winch turned on at maximum speed showed a significant load on the main line with a loss of its strength. Loads when hauling from great depths are much more than 10 tons than stipulated by the rules of fishing for winches. Line wear with the calculated loads on the winch turrets are consistent with the factors of line wear in practice and the choice of winches with 20 tons of effort in the field.
CATCHES AND BIOLOGICAL INDICATORS OF THE BALTIC SPRAT (SPRATTUS SPRATTUS BALTICUS, CLUPEIDAE) IN RUSSIAN WATERS OF THE GULF OF FINLAND AT THE PRESENT STAGE
Authors: Pozhinskaya Irina , Borkin Igor , Bogdanov Dmitriy , Hozyaykin Anatoliy
Published: April 2023

Paper presents the data about the catches of the Baltic sprat in the Eastern part of the Gulf of Finland from 1995 to 2021. The size and age characteristics of the sprat taken during the trawl fishing in autumn 2020-2021 are given. The analysis of nutrition and maturation, feed base and the factors limiting the fish growth is carried out.
Quantitative characteristics of hydrobionts and juvenile fish of the North Sakhalin shelf (review)
Authors: Voronkov Vladimir , Davydova Oksana
Published: April 2023

The article presents a review of published materials and results of specialized ecological and fishery research for the period 1950-2021, containing data on abundance and biomass of the main groups of hydrobionts (phytoplankton, zooplankton, zoobenthos), larvae and young fish in different shelf areas of northern and northeastern Sakhalin Island. Regularities of distribution of different plankton groups by shelf areas and by different water, horizons are considered. Quantitative indicators of systematic groups of hydrobionts and juvenile fish of different shelf areas are compared. The work summarizes the materials on the Zapadno-Shmidtovsky and Deryuginsky license areas, Yuzhno-Kirinsky hydrocarbon field and others.
North Kuril zone: the state of resources and fishery in 2000-2020
Authors: Boldyrev Vladimir , Badaev Oleg , Matrosova Inga , Solodovnikov Sergey , Shabelsky Dmitriy
Published: April 2023

Object of research: the North Kuril fishing zone. The purpose of the work is to characterize the state of the Russian fishery in the North Kuril zone of the Far Eastern fishery basin of Russia in 2000-2021. Result: The average long-term recommended value of fishing harvest in the North Kuril zone is 146.75-319.71 (244.54) thousand tons. At the same time, the average long-term development of aquatic biological resources is at a high level - 88.89-259.53 .76) thousand tons or 76.4%. The high proportion of exploitation of commercial aquatic organisms implies a limited possibility of expanding fisheries by increasing the gross catch. The development of the fishery complex of the region, obviously, should be ensured through comprehensively substantiated logistics and technological solutions.
Hydroacoustic assessment of Baikal omul (Coregonus migratorius) reserves based on the results of two-year studies in the spring-summer period of 2021 and 2022
Authors: Goncharov Sergey , Popov Sergey , Peterfeld Vladimir , Bazov Andrey , Klyuchareva Natalia
Published: April 2023

Taking into account the depressive condition of the Baikal omul resource, the decree of the Ministry of Agriculture of the Russian Federation No. 450 dated August 29, 2017 strict restrictions were established on the catch of Baikal omul in order to restore its reserves. Since 2021, a hydroacoustic method based on hydroacoustic surveys has been used to estimate its recovery. In 2021, on the fishing areas of Lake Baikal (Selenga shallow water and Northern Baikal) there were conducted surveys. In 2022, in addition to these areas, the researches were conducted in the Barguzin Bay and the Small Sea. Significant increase in the number of small omul was observed in the Selenginsky shallow water area in 2022. The results of a comparative analysis on Northern Baikal within the water area of 2021 showed that, taking into account confidence intervals, the number of omul and its biomass practically did not change. The averages omul biomass and number per unit area in the Small Sea were significantly lower than in the waters of the Selenginsky shallow water and the Northern Baikal. The lowest average densities were recorded in the Barguzin Bay.
SOME FEATURES OF THE APPLICATION OF NATO STANDARDS REGARDING ENSURING THE UNIFORMITY OF MEASUREMENTS DURING TESTING OF ARMAMENT AND MILITARY EQUIPMENT
Authors: Borshch V. , Verveyko O. , Svitenko M. , Semiroz А.
Published: April 2023

The intensive implementation of NATO standards is due to Ukraine’s course towards full membership in the North Atlantic Treaty Organization. Some results of the implementation of NATO standards are given.

The results of organizational and regulatory measures carried out to ensure unity of measurements carried out at the present time, as well as a change in the regulatory and methodological foundations of the creation and functioning of the state system of quality assurance are shown. The purpose of the work is to analyze regulatory acts on the implementation and application of NATO standards at the present stage in the field of ensuring unity of measurement in testing and identifying the features and complexities of these processes. Based on the results of the analysis of regulatory documents, conclusions were drawn regarding the change in the status of NATO standards in Ukraine from national to military and the mandatory application of military standards to enterprises, institutions and organizations of all forms of ownership that perform work and provide services for defense needs. Three groups of military standards have been singled out, which directly or indirectly regulate the requirements for ensuring the unity of measurements during testing of armament and military equipment, as well as specific requirements for them for each group. These groups of standards were developed on the basis of the NATO standardization agreements STANAG 4107, STANAG 4370 and STANAG 4704. The regulatory and legal principles and methodological foundations of the creation and operation of the state system of quality assurance according to STANAG 4107, the features of tests according to STANAG 4370, and issues related to the implementation of STANAG 4704 in in full in Ukraine. Certain difficulties in the implementation of NATO standards in Ukraine are noted and some ways to solve them are given.
CHOISE OF THE OPTIMAL SCENARIO OF TACTICS OF COMBAT ACTIONS BY VARIOUS UNITS IN THE COMPOSITION OF BATTALION TACTICAL GROUPS
Authors: Varakuta V. , Ryapolov Ye. , Chernyvskiy O. , Overchuk O.
Published: April 2023

Taking into account the experience of local wars and armed conflicts of recent decades, in particular the events in Syria, Libya, Nagorno-Karabakh and in the East, the theory of domestic martial arts and the practice of combat use of various groups in Luhansk and Donetsk operational areas exist a number of problems. One of them is the development of new tactics of total combat in special operations. For the first time, battalion tactical groups play a key role in the implementation of special operations plans. Therefore, the work considers the reasons for the creation of such united groups of troops from different parts and units, as well as the strengths and weaknesses of such groups. Analysis of the work of specialists in the assembly and combat use of such groups. Taking into account modern views on the conduct of war, the works of modern experts do not contain systematic and generalized conclu- sions and do not consider possible scenarios of the tactics of conducting combat operations for different purposes and functions of units within the same military formation. To solve these issues, examples of combat episodes and methods of choosing a tactical scenario of different units of battalion tactical groups in bilateral combat, when one side has one unit and the opposite one includes several different units, show signs of changing principles, methods and tactics of combat. In addition, the work reveals the dynamics of combat operations of individual units of the unified command and predicts the final outcome of the combat operations. The purpose of the article is to determine the ways of choosing possible scenarios (options) of the tactics of conducting combat operations by different units of BTGr in specific conditions.
ANALYSIS OF DEVICES AND SYSTEMS FOR MEASURING MUZZLE VELOCITY
Authors: Zozulia V. , Yula O. , Sliednikova O.
Published: April 2023

The article analyzes instruments and systems for measuring the muzzle (initial) velocity of artillery and small arms ammunition of different calibers. Local and foreign devices that are mounted on weapons or which are located at a distance are given. Most of the devices considered in this article can work autonomously, which is an advantage when using them at the landfill.

An important component of ensuring the defense capability of the State is the high level of Armed Forces of Ukraine equipment with new high-precision weapons and military equipment and the modernization of existing weapons, which involves verification of weapons samples for compliance with the declared characteristics of the manufacturer (supplier).

The effectiveness of the tests depends on the accuracy and quality of the instruments(systems) which are used to measure the characteristics of the weapons. The initial speed of the ball (shell, mines, etc.) is one of the main characteristics of the weapon’s combat properties. It is determined experimentally and by additional calculations.

The SL-520 series systems are versatile and precise instruments that allow the effective testing of weapons samples at training grounds. The advantages of these systems are: range of possible measurement speeds, high measurement accuracy, the possibility of measuring the muzzle velocity of all types of artillery and small-arms ammunition of different calibers, self-calibration option for the whole life cycle, integrated GPS time synchronization, the possibility of complex application of typical radars and the duration of autonomous operation.
DETERMINATION OF THE MAIN CHARACTERISTICS AND FLIGHT CONDITIONS OF UNMANNED AIRCRAFT FOR THE CREATION OF A SIMULATION MODEL FOR OVERCOMING THE ENEMY’S AIR DEFENSE SYSTEM
Authors: Orlov S. , Simonenko O. , Larin V. , Hordiienko A.
Published: April 2023

The article considers the problem of modeling unmanned aerial vehicles to create a simulation model of overcoming the enemy’s air defense system. The purpose of the article is to substantiate the methodology for evaluating the characteristics of the movement of unmanned aerial vehicles during aerial reconnaissance, the essence of which is the quantitative justification of a rational variant of conducting aerial reconnaissance taking into account the capabilities of the enemy’s anti-aircraft missile complex and air defense system. Analytical dependencies reflecting the main characteristics of reconnaissance unmanned aerial vehicles are considered. In combination with the proposed simulation model of overcoming the enemy's air defense system by unmanned aerial vehicles, the specified dependencies make it possible to evaluate the effectiveness of the chosen aerial reconnaissance option and determine the necessary parameters of the movement of unmanned aerial vehicles. The above calculations are based on operations research methods.
Stabilisation of Lateritic Soil for Road Construction Using Banana Leaf Ash
Authors: Adunoye G. O. , Akanbi O. T. , Oyeniyi O. M. , Ogunbeku O. D.
Published: April 2023

In view of the need to stabilise poor lateritic soil for road construction, this study investigated the effects of banana leaf ash (content retained on British Standard sieve No. 40) on the strength characteristics of selected lateritic soils. This is with a view to ascertaining the possibility of using the referenced banana leaf ash (BLA) content to stabilise the soils, for road construction purpose. To achieve the aim of this study, two soil samples were collected from two identified borrow pits (one sample from each borrow pit – referred to as Sample A and Sample B respectively) in Ile-Ife, southwestern Nigeria. Using standard procedure, preliminary and geotechnical tests were conducted on the soil samples in their natural states. BLA was then prepared and introduced to the soils at varying proportions of 2 %, 4 % and 6 % by weight of dry soil. The Atterberg limits and California bearing ratio (CBR) were subsequently determined for the treated soils. For the natural soils, results showed that: the plasticity index values for Sample A and Sample B were 22.91 % and 26.60 % respectively; the specific gravity values were 2.71 and 2.75 respectively; the optimum moisture content (OMC) and maximum dry density (MDD) for Sample A were 26.50 % and 1.325 Mg/m3 respectively, while for Sample B the values were 19.80 % and 1.643 Mg/m3 respectively; and the CBR values were 6.85 % and 11.36 %, respectively. With the addition of BLA: plasticity index generally reduced with the lowest values (4.89 % and 6.24 % for sample A and Sample B respectively) at 6 % BLA content; the CBR steadily increased until optimum values (10.23 % and 22.73 % for Sample A and Sample B respectively) were obtained at 4 % BLA content. The study concluded that: BLA could be used to improve the properties of lateritic soils for road construction purpose; and the particle size of BLA used does not diminish the quality of BLA as a soil-stabilising agent.
Medical care for postpartum bleeding: A literature review
Authors: Issenova S.Sh. , Beisenova D.B. , Yeshim A.B. , Zhanabatyrova G.Y. , Akynbay M.S. , Yermakhanbet G.K. , Kadyrova A.A.
Published: April 2023

Relevance: According to modern literature, over the past decade, there has been no tendency in the world to reduce maternal mortality from postpartum hemorrhage (PPH). In Kazakhstan, evidence-based medicine clinical recommendations on prevention and algorithm of action for obstetric bleeding have been developed and recommended for use since 2010. We conducted a literary search for existing innovative methods of PPH prevention and treatment based on the study of clinical recommendations of many developed countries, WHO, FIGO, and scientific publications. There exist separate algorithms for managing PPH during vaginal delivery or cesarean section.The study aimed to explore the existing innovative methods of preventing and treating postpartum hemorrhage to determine the most effective medical care for postpartum hemorrhage.Materials and methods: The literature search included papers published on PubMed in English from January 1, 2018, to November 31, 2022. The search was done by keywords including “pregnancy,” “PPH,” “pregnancy complication,” “pregnancy outcomes,” and “tranexamic acid,” “guideline.”
Results: Today, there are separate algorithms for managing PPH during vaginal delivery or cesarean section. Fibrin preparations and fibrinogen concentrate are recommended for use. When PPH occurs, it is important to communicate with family members to further inform them about the patient’s condition. The routine use of the Allgower shock index for accurate calculation of the volume of blood loss is proposed. It is proposed to use antifibrinolytic drugs not only for therapeutic purposes but also for prophylactic purposes. It is important to carry out adequate infusion-transfusion therapy to prevent iatrogenic coagulopathy. Conclusion: Introducing the above modern technologies into practical healthcare does not require high economic costs and can be used in obstetric institutions at all levels of medical care for PPH.
EDUKASI PERTOLONGAN PERTAMA PADA KECELAKAAN DI SEKOLAH
Authors: Hafsa Hafsa , Sandika Cici , Yollanda Clara , Nurjamil Dede
Published: April 2023

Pertolongan Pertama Pada Kecelakaan (PPPK) adalah upaya pertolongan dan perawatan sementara terhadap korban kecelakaan sebelum mendapat pertolongan yang lebih sempurna dari dokter atau paramedis. Hal ini berarti pertolongan tersebut bukan sebagai pengobatan atau penanganan yang sempurna, tetapi hanyalah berupa pertolongan sementara yang dilakukan oleh petugas PPPK (petugas medic atau orang awam) yang pertama melihat korban. Tujuan PPPK adalah untuk menyelamatkan jiwa atau mencegah kematian, mencegah cacat yang lebih berat, mencegah infeksi, mempertahankan daya korban sampai datangnya pertolongan lebih lanjut dan mengurangi rasa sakit serta rasa takut. Dalam kehidupan sehari-hari sering terjadi kecelakaan yang menimpa seseorang atau sekelompok orang. Kecelakaan bisa terjadi dimana saja seperti di rumah, di jalan, di tempat kerja bahkan di sekolah. Umumnya kecelakaan terjadi secara tiba-tiba, tanpa diduga sebelumnya dan akibat yang ditimbulkan sangat bervariasi, bisa berupa cedera ringan, sedang, berat, bahkan sampai meninggal dunia. Berdasarkan jumlah korban, kecelakaan bisa terjadi dengan satu korban, banyak korban (musibah) atau sangat banyak korban (bencana). Maka diperlukan edukasi pertolongan pertama pada kecelakaan di sekolah
PELATIHAN DAN PENDAMPINGAN PENYULUHAN PENCEGAHAN COVID-19 MELALUI MEDIA BERBASIS INTERNET
Authors: Nafis Sjamsudin Irfan , Surtimanah Tuti
Published: April 2023

Penyuluhan merupakan komunikasi untuk menyampaikan informasi kepada masyarakat, dilakukan secara langsung maupun tidak langsung. Salah satu jenis metode dan media yang potential digunakan selama pandemi COVID-19 adalah media penyuluhan berbasis internet (online) yang diharapkan dapat menjangkau sasaran tanpa harus bertemu secara langsung. Dalam meningkatkan kompetensi menggunakan metode dan media berbasis internet dari para promotor kesehatan, dilakukan pelatihan bermitra dengan organisasi profesi Perkumpulan Promotor dan Pendidik Kesehatan Masyarakat Indonesia (PPPKMI) Daerah Jawa Barat menggunakan media video conference Zoom.  Pelatihan diikuti 196 peserta dari Provinsi Jawa Barat. Materi yang disampaikan mencakup instalasi dan penggunaan virtual conference zoom dan google meet, pembuatan video presentasi, podcast dan google form. Evaluasi proses pelatihan dari peserta menunjukan penyampaian materi jelas. Pendampingan pasca pelatihan berupa konsultasi via WhatsApp Grup maupun virtual conference dalam persiapan maupun pelaksanaan penyuluhan di tempat kerja atau wilayah kerjanya. Dalam dua minggu pasca pelatihan, sebanyak 92 peserta telah menyuluh 1.109 sasaran yang sebagian besar perempuan berasal dari perdesaan dan perkotaan. Sepertiga kegiatan penyuluhan dilakukan dengan menggunakan saluran dan media berbasis internet.
TD 2689 - Acompanhando a Cobertura Previdenciária pela Pnad Contínua : propostas de indicadores para as diferentes versões da pesquisa
Authors: Ansiliero Graziela , Costanzi Rogério Nagamine , Cifuentes Ricardo
Published: April 2023

Referências produzidas por Schwarzer, Paiva e Santana (2004), que partiram dos aportes iniciais de Pinheiro e Miranda (2000), com o intuito de elaborar e/ou revisar um conjunto de indicadores básicos para mensuração do nível de cobertura previdenciária e social dos trabalhadores ocupados e dos idosos no país a partir da Pesquisa Nacional por Amostra de Domicílios (PNAD) Contínua. O resultado é a apresentação de um conjunto de indicadores não perfeitamente equivalentes aos estimados a partir da PNAD Anual, extinta em 2015, mas que podem ser comparados, com ressalvas, para a análise de tendências.
TD 2697 - Indicadores de Concorrência, Estrutura de Mercado e Globalização : Discussão Conceitual e Testes Empíricos com Dados Norte-Americanos
Authors: Oliveira Glauco Avelino Sampaio
Published: April 2023

Este trabalho discute a adoção de indicadores de concorrência, construídos por meio de dados de setores industriais norte-americanos, e sua aplicação na discussão de políticas públicas, em especial na política de concorrência e, em menor escala, na política de comércio exterior. A premissa é de que a estrutura da competição doméstica, manifestada em índices de concentração, como o CR4 e o HHI, afeta a margem de lucro dos setores econômicos, refletindo no markup, ou seja, os preços em excesso aos custos (MPC), a variável dependente. A maior concentração levaria a maiores lucros. Outros indicadores teriam a capacidade de afetar negativamente a margem de lucro doméstica, entre os quais se destaca a penetração das importações e o nível de investimento. O estudo propõe um exercício empírico preliminar com dados norte-americanos, baseado na literatura recente sobre aumento dos lucros, da concentração setorial e dos processos de globalização (investimento, comércio exterior) na economia contemporânea. Os resultados indicam algumas regularidades empíricas, guardadas algumas limitações metodológicas, como o uso de instrumentos fracos. O objetivo fundamental do estudo é indicar possíveis metodologias e discussões para replicação no caso brasileiro.
TDE 01 - Redes de actores y su rol en el desarrollo de corredores : diagnóstico y propuesta de gobernanza para el corredor bioceánico vial Mato Grosso do Sul – puertos del norte de Chile
Authors: Franco Ledys , Gonçalves Julia de Souza Borba , Atienza Miguel , Barros Pedro Silva
Published: April 2023

Este trabajo busca abordar un desafío clave: analizar cómo es la coordinación actual de la iniciativa del Corredor Vial Bioceánico para promover la integración en infraestructura y cooperación entre el Estado de Mato Grosso do Sul, el Chaco Paraguayo, las regiones del noroeste Argentino y los puertos del norte de Chile a partir del análisis de la red de actores. Este análisis es fundamental para repensar la forma de gobernanza que puede orientar esta iniciativa en el futuro hacia el cumplimiento de los objetivos declarados. El objetivo de este documento es explicar cómo se organiza la red de actores del corredor así como proponer una potencial forma de gobernanza que permita una mejor coordinación entre los actores participantes, con el fin de que el corredor pueda llegar a convertirse en un instrumento para el desarrollo regional.
THE SHRINKING MIDDLE: EXPLORING THE NEXUS BETWEEN INFORMATION AND COMMUNICATION TECHNOLOGY, GROWTH, AND INEQUALITY
Authors: Yeo Yeongjun , Hwang Won-Sik , Lee Jeong-Dong
Published: April 2023

To implement specific actions to respond to challenges accompanied by technological advances, it is essential to realize the foreseen future at different levels. This study aims to generate the forecasts of different prospects of different industries, labor market, and households, depending on the pervasiveness of the information and communication (ICT) software (SW) in production. For the analysis, we propose a computable general equilibrium (CGE) model that explicitly incorporates diverse impact channels induced by ICT SW investments. Our simulation results suggest that the development of ICT SW technology can bring about both opportunities and challenges in the economic system. The results also show that advancements in ICT SW can aggravate inequalities within the economic system, while driving higher economic growth effects by accelerating the polarization of the labor market and wages/income distributions. Accordingly, our results suggest that policymakers should formulate tailored policy options to mitigate structural problems and widen income disparities driven by ICT-specific technological advances to achieve economic inclusiveness.
Magnetic Fields in the Horsehead Nebula
Authors: Hwang Jihye , Pattle Kate , Parsons Harriet , Go Mallory , Kim Jongsoo
Published: April 2023

We present the first polarized dust emission measurements of the Horsehead Nebula, obtained using the POL-2 polarimeter on the Submillimetre Common-User Bolometer Array 2 (SCUBA-2) camera on the James Clerk Maxwell Telescope. The Horsehead Nebula contains two submillimeter sources: a photodissociation region (PDR; SMM1) and a starless core (SMM2). We see well-ordered magnetic fields in both sources. We estimated plane-of-sky magnetic field strengths of 56 ± 9 and 129 ± 21 μG in SMM1 and SMM2, respectively, and obtained mass-to-flux ratios and Alfvén Mach numbers of less than 0.6, suggesting that the magnetic field can resist gravitational collapse and that magnetic pressure exceeds internal turbulent pressure in these sources. In SMM2, the kinetic and gravitational energies are comparable to one another, but less than the magnetic energy. We suggest a schematic view of the overall magnetic field structure in the Horsehead Nebula. Magnetic field lines in SMM1 appear to have been compressed and reordered during the formation of the PDR, while the likely more-embedded SMM2 may have inherited its field from that of the pre-shock molecular cloud. The magnetic fields appear to currently play an important role in supporting both sources.
Weed wide web: characterising illegal online trade of invasive plants in Australia
Authors: Maher Jacob , Stringham Oliver , Moncayo Stephanie , Wood Lisa , Lassaline Charlotte , Virtue John , Cassey Phill
Published: April 2023

Invasive plants seriously impact our environmental, agricultural and forestry assets, and the ornamental plant trade is a major introduction pathway. The variety and extent of ornamental plant trade is growing in reach and is increasingly facilitated by the internet (i.e., through e-commerce). A lack of surveillance and regulation of e-commerce has resulted in invasive species being widely traded on these platforms. Here, we investigated the illegal trade in invasive plant species occurring in Australia by collecting advertisements found on a popular e-commerce website. Across a 12-month period we found 155 plant taxa advertised online that were prohibited to trade in Australian. From 10,000 advertisements (4.25% of total advertisements found), we found 1,415 instances of these invasive plants advertised, of which 411 breached local jurisdictional (i.e., State or Territory) laws. Opuntia cacti and invasive aquatic plants were traded in the greatest quantities. A variety of uses for plants prohibited to trade were purported by sellers, where aquatic uses were the most popular (i.e., water filtering and habitat for aquatic animals). Despite Australia’s strict internal biosecurity regulations, we found that trade prohibitions had no influence on the quantity and price of illegal invasive plants traded. Given this, and the extent of illegal invasive plants traded, we believe increased monitoring and regulation of online plant trade is warranted. However, to obtain the most optimal outcomes, regulations should be coupled with increased cooperation from e-commerce platforms and public awareness campaigns. Future weed risk assessments should consider online trade as a key factor in the long-distance dispersal and propagule pressure of a plant. Jurisdictions would also benefit from greater alignment on plant trade prohibitions and revision of associated compliance policies.
Mood Disorders With Psychotic Features: Diagnostic Considerations and Treatment Challenges
Authors: Moukaddam Nidal , Howse Jennifer , Kanter Joel , Chaudhry Muhammad Qasim , Wojcik Katharine D.
Published: April 2023

Psychotic symptoms can occur in mood disorders, both major depression and bipolar. The most common psychotic symptoms include hallucinations and delusions. A hallmark of psychosis in mood disorders is the presence of mood congruence. For depression, psychosis can consist of delusions of guilt and poverty, nihilism, or hallucinations that denigrate the person, remind them of failures, and encourage them to hurt themselves. Conversely, manic symptoms are often associated with grandiosity and inflated self-esteem of delusional magnitude. Sometimes, psychotic symptoms can be fleeting, trauma-based or due to substance use, all instances that careful interview can uncover. Diagnostic considerations focus on the differentiation of mood disorders from psychotic disorders such as schizophrenia, and anxiety/trauma-related disorders, given the impact on treatment selection and prognosis. Cognitive-behavioral therapy for psychosis has shown efficacy in treatment. From a pharmacological perspective, mono-therapy (antidepressant, antipsychotic, mood stabilizers) can be very effective though many patients end up on composite regimens.

[
Psychiatr Ann
. 2023;53(4):160–165.]
Delusions and Fixed Beliefs in the Age of the Internet: When Do Conspiracy Theories Become Illness?
Authors: Shamim Afroz , Banu Sophia , Blassingame Jonathan , Guilford Kristen L. , Williams Julie
Published: April 2023

The internet, especially in the form of social media, provides an avenue for dissemination of unusual and fixed ideas. Recently, the role of conspiracy theories (CTs) in perpetuating myths about the Coronavirus disease (COVID-19) has attracted the attention of mental health practitioners. While extreme CTs may carry some similarities to delusions and may occur in similar socioeconomic groups, some distinctions can be made in the clinical setting. There is little evidence that social media use or gaming with virtual-reality tools on the internet cause psychotic illness, although the internet does promote CTs. Nevertheless, individuals with psychotic illness are overrepresented among internet users and this may allow for greater exposure to unusual beliefs. Future immersive experiences on the internet such as virtual reality and the metaverse may present challenges for people at risk of developing fixed beliefs, but research will be needed on this subject.

[
Psychiatr Ann
. 2023;53(4):171–174.]
Acquisition of Medical Knowledge Varies During Allopathic and Osteopathic Orthopedic Surgery Residency Training
Authors: Silvestre Jason , Thompson Terry L. , Kelly John D. , Wilson Robert H. , Nelson Charles L.
Published: April 2023

Currently, little is known about the differences in medical knowledge acquisition between osteopathic and allopathic orthopedic surgery residents. The purpose of this study was to determine the relationship between Orthopaedic In-Training Examination (OITE) performance and training pathway in orthopedic surgery. This was a retrospective cohort study of all orthopedic surgery residents taking the OITE during the 2019–2020 academic year. Comparisons in OITE performance were made with parametric tests. A total of 4407 orthopedic surgery residents were in allopathic (86%) and osteopathic (14%) training programs. There was significant improvement in OITE performance between subsequent postgraduate year (PGY) levels among allopathic residents (
P
<.001). Among osteopathic residents, OITE performance increased between PGY1 and PGY4 (
P
<.001) but plateaued between PGY4 and PGY5 (
P
>.05). At the PGY1 level, osteopathic residents had higher OITE performance than allopathic residents (
P
<.001), but scores were equivalent at the PGY2 to PGY4 levels (
P
>.05). At the PGY5 level, allopathic residents had higher OITE performance than osteopathic residents (
P
<.001). Allopathic medical students scored higher on the Step 1 (248±19 vs 242±17,
P
<.001) and Step 2 (255±16 vs 250±15,
P
<.001) board examinations. Medical knowledge increases during orthopedic surgery residency. Disparities exist by training pathway, with osteopathic residents outperforming allopathic residents at the PGY1 level but then underperforming at the PGY5 level. Ultimately, this study provides insights into how resident promotion and training pathway impacts the acquisition of medical knowledge during orthopedic surgery residency. [
Orthopedics
. 2023;46(6):379–383.]
Modeling the spread of COVID-19 in spatio-temporal context
Authors: Sathish Indika S. H. , Diawara Norou , Anna Jeng Hueiwang , Giles Bridget D. , Gamage Dilini S. K.
Published: April 2023

This study aims to use data provided by the Virginia Department of Public Health to illustrate the changes in trends of the total cases in COVID-19 since they were first recorded in the state. Each of the 93 counties in the state has its COVID-19 dashboard to help inform decision makers and the public of spatial and temporal counts of total cases. Our analysis shows the differences in the relative spread between the counties and compares the evolution in time using Bayesian conditional autoregressive framework. The models are built under the Markov Chain Monte Carlo method and Moran spatial correlations. In addition, Moran's time series modeling techniques were applied to understand the incidence rates. The findings discussed may serve as a template for other studies of similar nature.
Primeras fases en la construcción del cuadrante renacentista de la catedral de Sevilla. Estudio de paramentos mediante ortofotos de alta resolución
Authors: Díaz-Moreno Fernando
Published: April 2023

En este artículo se analizan las primeras fases constructivas del cuadrante renacentista de la catedral de Sevilla a partir del estudio de la edificación presente, apoyado por los documentos escritos que se conservan del proceso de planificación y ejecución de las obras. Gracias a las ortofotos de alta resolución, extraídas de una captura métrica digital fotogramétrica apoyada en teodolito electroóptico, se revisan en profundidad los paramentos del sector primitivo del cuadrante, en concreto de los espacios interiores de la sacristía de los Cálices y del patio de los Óleos. La aclaración del proceso de ejecución de las primeras fábricas permite acotar las preexistencias sobre las que se desarrolló el proyecto y aportar nuevos datos sobre el alcance de las obras realizadas bajo la maestría de Diego de Riaño.
Urban dining rooms in Lusitania: a metrological and morphological approach
Authors: Sousa Filipe , Felício Catarina
Published: April 2023

This study aims to characterise the urban dining rooms located in the province of Lusitania from a metrological and morphological point of view. The studied examples were identified in the cities of Conimbriga (Condeixa-a-Velha), Capera (Cáparra), Augusta Emerita (Mérida), and Mirobriga (Santiago do Cacém) and were built between the 1st and the 3rd century CE. The conducted analyses demonstrated the existence of a certain hierarchy in room dimensions, with widths being more homogeneous. This led to the definition of four size clusters, that have a more heterogeneous set of lengths associated, suggesting greater importance of room width, possibly related to the placement of the couches. The existence of relatively standardised size clusters, as well as the presence of several dining rooms in the same house, suggest a relationship between size and functional character, as well as the existence of established rules for the sizing of certain spaces.
The Impact of Cross-Border E-Commerce Policy on Imports
Authors: Zhang Liqing , Zhang Yan , Zhao Chang
Published: April 2023

In the era of the digital economy, cross-border e-commerce is a specific embodiment of “internet plus international trade.” Based on the promoting policy of “The product lists of cross-border e-commerce retail imports” and Chinese customs transaction data, this study uses a difference-in-differences methodology to analyze the effects of cross-border e-commerce on China's import trade. The results show that the implementation of the cross-border e-commerce policy has significantly contributed to the growth of import value, price, and quantity. The promoting effects mainly derive from the intensive margin of imports and the extensive margins of importing source countries. Digital technology and development determine the policy's effectiveness. The heterogeneous effects of import source countries and domestic import regions imply an enlarging inequality effect from cross-border e-commerce and the digital economy.
Research on the Influence of Digital Transformation on Enterprise Internal Control Quality
Authors: Chen Na , Yang Shuili , Li Lei
Published: April 2023

Digital transformation has become a new engine driving the development of enterprises. Based on the data of Chinese A-share listed manufacturing enterprises from 2008 to 2020, this paper measured the intensity of enterprise digital transformation with the help of machine learning method, and empirically investigated the impact mechanism of digital transformation on the quality of enterprise's internal control. It is found that digital transformation can significantly improve the quality of internal control. Mechanism analysis shows that digital transformation has a positive impact on the quality of internal control mainly by reducing agency costs and increasing the shareholding ratio of institutional investors. The results of heterogeneity analysis indicate that the promotion effect of digital transformation on the quality of internal control is more significant in enterprises with small scale and strong manager's ability. Digitization improves the total factor productivity of enterprises by promoting the quality of internal control.
Coercive Force of Low-Carbon Steel Specimens Subjected to Cyclic Loading and Impulse Current
Authors: Ivanov A.M.
Published: April 2023

The change in the coercive force of the 10kp5 steel specimens subjected to cyclic loading and impulse current has been studied. The choice of processing methods, including their combination in a certain sequence, was shown to provide the best plastic or strength properties of metal materials. The feasibility and good perspectives of express assessment of the effectiveness of the chosen method or methods of processing metal materials by magnetic properties, e.g., coercive force, without resorting to mechanical tests with the destruction of specimens, are noted. The highest changes towards increase in strength and coercive force in the 10kp5 low-carbon steel have been found after cyclic loading and in a combined mode with cyclic loading at the final stage. The optimal combination of cyclic loading and pulse current can make it possible to control the strength and magnetic properties of ferromagnetic materials.
Influence of Sintering Temperature on the Structural and Electrical Properties of CeO2 Nanoparticles Prepared by Hydrothermal Method
Authors: Gatea Hamed Alwan
Published: April 2023

Cerium oxide, also known as CeO2, can be synthesized by the hydrothermal process with cerium nitrate precursor solution. After drying and sintering at 800,900, and 1100 C, different-sized cerium oxide nanoparticles were produced from the solution. Using x-ray diffractometers, the researchers were able to determine that all of the cerium oxide nanoparticles have a unique structure called fluorite crystalline structures. The structural, morphological and optical properties of films were investigated by a set of characterization techniques such as X-ray diffraction (XRD) and scanning electron microscopy (SEM). The estimation of crystallite size is (22.12,27.34 and 42.02 nm), which is confirmed by Scherrer formulae from XRD pattern. The dielectric constant increased with the increase of crystallite size due to the size effect. The crystal size increased with increased sintering temperature. Keywords: Cerium oxide (CeO2), structural, crystal size, , morphology,Dielectric constant.
Comparative Life Cycle Analysis (LCA) between a Geopolymeric Mortar Derived from Mining Waste and Conventional Mortar
Authors: Paredes-Malma Daniela K. , Cuzziramos-Gutiérrez F.A. , Alvarez Efrain J. Llica , Huamán-Mamani Fredy Alberto
Published: April 2023

The life cycle analysis (LCA) is a methodology that allows us to contemplate the environmental impact of a material during the different stages of the life cycle. The impact categories were used to measure the repercussions caused to the planet due to the high demand generated by construction materials. This study addressed the stages of a life cycle analysis, according to the ISO 14044 [1] standard, with the aim of evaluating, quantifying and comparing the environmental impacts associated with the manufacture of mortar with similar mechanical behavior: A conventional mortar and a geopolymeric mortar, the latter developed from a geopolymerization process of waste from the Peruvian mining industry [2,3]. The scope of the work sought to evaluate the main environmental impacts of both mortars, focusing on a "cradle to door" life cycle analysis. The application of LCA allowed optimizing the manufacturing process, reducing adverse environmental impacts. The results showed that the environmental impacts of the geopolymeric mortar presented better performance in the medium impact categories: Environmental impact and water consumption. On the other hand, the conventional mortar presented better performance in the stratospheric ozone depletion impact category.
Influence of Groove Roughness on Crack Initiation of PEEK Thrust Bearing in Water
Authors: Matsueda Takahiro , Kida Katsuyuki
Published: April 2023

In order to research the relation between fracture and texture conditions of PEEK thrust bearing in water, the rolling contact fatigue, RCF test was carried out. And then, the specimen after test was observed with a laser confocal microscope. Three types of surface damage: single crack, flaking and multiple crack: were ob-served. Arithmetic Average Roughness Height, AARH’s around single crack and no-damaged area were calculated. AARH’s in these two areas have no sig-nificantly different each other. This means the effect of cracks on roughness was negligible, and vice versa. The changing of AARH during the test was also dis-cussed. AARH’s both of failure and non-failure specimens were decreased dur-ing RCF tests. AARH Range of non-failure specimens after test included that of the failure specimen. It indicated AARH was not dominated the condition failure of PEEK bearing in water. On the other hands, the load had a clear threshold. This means the failure of PEEK bearing in water is strongly affected by load.
Restoration of Parts of the Gas Distribution Mechanism of Cars in Mechanical Engineering
Authors: Yakovlev R.A. , Shvelev A.I.
Published: April 2023

Since the end part of the valve of the gas distribution mechanism is subjected to not only wear but also fatigue painting during operation of the car, this article proposes to remove the worn out layer of cast iron in several ways to avoid problems of renovation of parts of the gas distribution mechanism.
Long-term outcomes of different rehabilitation programs in patients with long COVID syndrome: a cohort prospective study
Authors: Grishechkina Irina A. , Lobanov Andrey A. , Andronov Sergei V. , Rachin Andrey P. , Fesyun Anatoliy D. , Ivanova Elena P. , Masiero Stefano , Maccarone Maria Chiara
Published: April 2023

After the resolution of the acute SARS-COV-2 infection, an important percentage of patients do not fully recover and continue to present several symptoms. Nevertheless, there is a lack of data in the literature on the effects of rehabilitation programs on medium- and long-term long COVID symptoms. Therefore, the aim of this study was to evaluate the long-term outcomes after rehabilitation programs in long COVID syndrome patients. A prospective cohort study was conducted from August 2021 to March 2022, involving 113 patients with long COVID syndrome. The patients in the experimental group (EG, n=25) received a tailored and multidisciplinary rehabilitative program, involving aquatic exercises, respiratory and motor exercises, social integration training and neuropsychologic sessions, LASER therapy and magnetotherapy. Patients in the other three comparison groups received eastern medicine techniques (CG1), balneotherapy and physiotherapy (group CG2), self-training and home-based physical exercise (CG3). Once the several rehabilitation protocols had been performed, a structured telephone contact was made with the patients after 6 months ± 7 days from the end of the rehabilitation treatment, in order to record the frequency of hospital ad-missions due to exacerbation of post-exacerbation syndrome, death or disability, and the need for other types of care or drugs. The patients in the comparison groups were more likely to request therapeutic care for emerging long COVID symptoms (χ2=6.635, p=0.001; χ2=13.463, p=0.001; χ2=10.949, p=0.001, respectively), as well as more likely to be hospitalized (χ2=5.357, p=0.021; χ2=0.125, p=0.724; χ2=0.856, p=0.355, respectively) when compared to the patients of the EG. The relative risk (RR) of hospital admissions in the observed cohort was 0.143 ±1,031 (СI: 0.019; 1.078); 0.580±1,194 (CI: 0.056; 6.022); 0,340±1,087 (CI: 0.040; 2.860). The RR of hospital admissions for patients with long COVID syndrome was reduced by 85.7%; 42.0% and 66.0%, respectively, when the experimental rehabilitation technique was employed. In conclusion, a tailored and multidisciplinary rehabilitative program seems to have a better preventive effect not only in the short term, but also over the next 6 months, avoiding the new onset of disabilities and the use of medicines and specialist advice, than other rehabilitative programs. Future studies will need to further investigate these aspects to identify the best rehabilitation therapy, also in terms of cost-effectiveness, for these patients.
Decreased density of pyramidal cells in the cerebral cortex, and Purkinje cells in the cerebellar cortex of Sprague-Dawley rats after being exposed to filtered kretek cigarette smoke
Authors: Tjahyadi David , Parwanto Edy , Amalia Husnun , Digambiro Reza Aditya , Edy Hosea Jaya , Oladimeji Ashaolu Victoria
Published: April 2023

Filtered kretek cigarette smoke is a gas that contains solid components (particulates). Carcinogenic chemicals are present in this type of cigarette smoke. Furthermore, it is said that tobacco has a major negative impact on cerebral structure development, creates addiction, and alters brain activity and function. The purpose of this study was to see how filtered kretek cigarette smoke affected the density of pyramidal cells in the cerebral cortex and Purkinje cells in the cerebellar cortex. An experimental and control group design was used for the study. Group 1 (6 rats) is the control group, and the rats breathe normally. Group 2 (6 rats) was exposed to filtered kretek cigarette smoke at a rate of one stick per day for three months. Pyramidal cells in the rat cerebral cortex and Purkinje cells in the cerebellar cortex were studied. Pyramidal cells were expected to be distributed in the cerebral cortex at the hippocampus area of rats in group 1. In contrast, the density of pyramidal cells decreased in group 2. The number of pyramidal cells in the rat cerebral cortex differed significantly between groups 1 and 2 (p<0.001). Purkinje cells in the cerebellar cortex in group 1 were normal, whereas Purkinje cells in group 2 were degenerated. The distance between Purkinje cells in the cerebellar cortex was greater in group 1 than in group 2 (p<0.001). Rats exposed to 1 stick of Kretek cigarette smoke each day for 3 months had lower pyramidal cell density in the cerebral cortex and hippocampus. The same result happened: one stick of Kretek cigarette smoke each day for three months reduced Purkinje cell density in the cerebellar cortex.
The structure of KMS weights on étale groupoid C*-algebras
Authors: Christensen Johannes
Published: April 2023

We generalise a number of classical results from the theory of KMS states to KMS weights in the setting of

C^{*}

-dynamical systems arising from a continuous groupoid homomorphism

c:\mathcal{G} \to \mathbb{R}

on a locally compact second countable Hausdorff étale groupoid

\mathcal{G}

. In particular, we generalise Neshveyev's Theorem to KMS weights.