bluuebunny/crossref_metadata_2025 huggingface dataset:
Structural analysis and optimal design of a spherical thin-walled stainless steel water tank without reinforced tie ribs
Authors: Wang Kefei , Li Long
Published: March 2024

A spherical thin-walled stainless steel water tank without reinforced tie ribs has been designed to address the issues of easy fracture and corrosion of the ribs, difficulty in maintenance and cleaning, and short service life exposed during the use of thin-walled stainless steel water tanks with reinforced tie ribs. Firstly, an analytical model of a flat steel thin-walled water tank without reinforced tie ribs was established and subjected to static analysis under water pressure. The deformation and stress distribution patterns of the side molded plate of the flat box were obtained. Secondly, a spherical non ribbed thin-walled stainless steel water tank structure was designed with circular cross-section under different box bulge parameters, and its mechanical response characteristics under water pressure load were analyzed. A strengthening scheme was designed for the bottom box molded plate. Once again, optimize the combination design of the box scheme and the reinforcement scheme, and analyze their static, thermodynamic, and thermal solid coupling performance. Finally, the Latin Hypercube Sampling method was used to generate experimental design samples, and a response surface approximation model of a spherical thin-walled stainless steel water tank without reinforced tie ribs was constructed. The wall thickness of the box molded plate, skeleton, and reinforcement were used as design variables, and the maximum deformation and maximum equivalent stress were used as constraints. The lightweight design was carried out with the goal of minimizing mass. The research results indicate that the design program and parameter selection method for spherical thin-walled stainless steel water tanks without reinforced tie ribs proposed in the article are efficient and feasible, and can provide technical reference and theoretical support for the layout and overall optimization design of non ribbed thin-walled stainless steel water tank structures.
Mathematical simulation modeling analysis of sub-sea tunnel blasting based on grey correlation
Authors: Ling Tingting , Ding Bolun , Wu Tingyao
Published: March 2024

Blasting in the ocean tunnel has a great impact on Marine life and seabed vegetation, so it is necessary to control the impact of blasting vibration on the surrounding Marine environment. In this paper, taking Xiamen Tunnel as an example, the blasting vibration response characteristics of undersea tunnel are studied, and the velocity attenuation rules of tunnel structure in different directions are obtained. The grey correlation theory is innovatively applied to analyze the correlation degree of factors affecting the blasting vibration effect of the undersea tunnel, and the key factors and secondary factors affecting the blasting vibration effect of the tunnel are determined. The grey correlation theory is used to analyze the correlation degree between the blasting vibration effect of the cross-tunnel, which is conducive to improving the safety and stability of tunnel construction. It provides a new idea and method for vibration control of similar projects.
Epithelioid Mesothelioma of Peritoneum Masquerading as Peritoneal
Carcinomatosis
Authors: Bharti Jyotsna Naresh
Published: March 2024

Introduction::

Mesothelioma is an insidious neoplasm that develops from mesothelial cells. About 80% of mesotheliomas originate in the pleural cavity. Other
sites where it has been reported are the peritoneal cavity, tunica vaginalis, and the pericardium.

Case Presentation::

A 45-year-old female complained of abdominal distention and pain for three months. There was a significant weight loss of approximately 15 kg in
the past three months, and there was no family history of any malignancy, tuberculosis, substance abuse, or asbestosis exposure. Physical
examination revealed signs of muscle wasting, loss of subcutaneous fat, and hollowing of the eye sockets. There was pitting edema in the bilateral
lower limbs; per abdomen examination revealed abdominal distension with umbilicus in the midline. No visible peristalsis or dilated veins were
seen all over the abdomen. Hernial sites were normal. Gross ascites were present, and no organomegaly, definitive mass, or lump was palpable.
The dull note was heard all over the abdomen, and fluid thrill was noted on percussion. Bowel sounds were normal on auscultation. The ascitic
fluid examination revealed the presence of atypical cells. An omentectomy was done and it was sent for histopathological examination.

Conclusion::

The specimen of omentectomy was in multiple fragments and measured 17x16x3cm; a few of the fragments were nodular, soft to firm on
palpation. The cut section of mass was gray and white with areas of necrosis. Microscopic examination showed sheets of malignant cells. These
tumor cells were immunoreactive to EMA, cytokeratin, vimentin, calretinin, WT-1, and D2-40 and immune negative to desmin (highlighting only
the entrapped reactive mesothelial cells), inhibin, BerEP4, TTF-1, CD 68, napsin, ER, CEA, CDX2, PR, PAX-8, and SALL4. Ki67 labelling index
was 15%. The features were of epithelioid mesothelioma.
A Study on the Anti-inflammatory Activity of Clematis tangutica Using
Molecular Networking
Authors: Li Aijing , Chen Tao , Wang Shuo , Luo Juyuan , Shen Cheng , Li Hongmei , Ma Yumei , Song Zhibo , Lu Weihang , Zou Denglang , Li Yulin
Published: March 2024

Background::

Clematis tangutica, an indigenous medicinal herb native to the Qinghai-
Tibet Plateau of China, has traditionally been associated with treating various inflammation-related
diseases. While its therapeutic potential is recognized, a comprehensive characterization of its metabolite
molecules and their anti-inflammatory properties has not been undertaken.

Objective::

This study aimed to comprehensively profile the metabolite molecules of Clematis tangutica
and identify potential anti-inflammatory active molecules using the Activity Labelled Molecular
Networking (ALMN) approach.

Methods::

The ALMN approach was employed to visually label activity to the feature-based molecular
network, allowing for the profiling of potential anti-inflammatory active molecules in Clematis
tangutica. Through correlating activity levels with the respective molecules, a detailed profiling was
achieved.

Results::

Out of the 8,644 metabolite molecules in Clematis tangutica, ten were identified as the most
potent anti-inflammatory molecules. Among these, Spiraeoside was notably annotated along with its
structure.

Conclusion::

This research successfully identified ten potent anti-inflammatory molecules from the
vast metabolite profile of Clematis tangutica, including a detailed annotation of Spiraeoside. This
marked a significant step in bridging traditional therapeutic knowledge with modern molecular profiling
techniques.
Automated Synthesis of [11C]PiB via [11CH3OTf]-as Methylating Agent for
PET Imaging of β-Amyloid
Authors: Singh Akhilesh K. , Gambhir Sanjay , Dixit Manish
Published: March 2024

Aim::

Efficient synthesis of precursor from commercially available starting materials
and automated radiosynthesis of [11C]PiB using commercially available dedicated [11C]-
Chemistry module from the synthesized precursor.

Background::

[11C]PiB is a promising radiotracer for PET imaging of β-Amyloid,
advancing Alzheimer's disease research. The availability of precursors and protocols
for efficient radiolabelling foster the applications of any radiotracer. Efficient synthesis
of PiB precursor was performed using anisidine and 4-nitrobenzoyl chloride as starting
materials in 5 steps, having addition, substitutions, and cyclization chemical methodologies.
This precursor was used for fully automated radiosynthesis of [11C]PiB in a commercially
available synthesizer, MPS-100 (SHI, Japan). The synthesized [11C]PiB was purified via
solid-phase methodology, and its quality control was performed by the quality and safety criteria
required for clinical use.

Methods::

The synthesis of desired precursors and standard authentic compounds started
with commercially available materials with 70-80% yields. The standard analytical methods
were characterized all synthesized compounds. The fully automated [11C]-chemistry synthesizer
(MPS-100) used for radiosynthesis of [11C]PiB with [11C]CH3OTf acts as a methylating agent.
For radiolabelling, varied amounts of precursor and time of reaction were explored. The resulting
crude product underwent purification through solid-phase cartridges. The synthesized radiotracer
was analyzed using analytical tools such as radio TLC, HPLC, pH endo-toxicity, and
half-life.

Results::

The precursor for radiosynthesis of [11C]PiB was achieved in excellent yield using
simple and feasible chemistry. A protocol for radiolabelling of precursor to synthesized
[11C]PiB was developed using an automated synthesizer. The crude radiotracer was purified by
solid-phase cartridge, with a decay-corrected radiochemical yield of 40±5% and radiochemical
purity of more than 97% in approx 20 minutes (EOB). The specific activity was calculated and
found in a 110-121 mCi/μmol range.

Conclusion::

A reliable methodology was developed for preparing precursor followed by
fully automated radiolabeling using [11C]MeOTf as a methylating agent to synthesize
[11C]PiB. The final HPLC-free purification yielded more than 97% radiochemical purity
tracer within one radionuclide half-life. The method was reproducible and efficient for any
clinical center.
Pertumbuhan dan Hasil Dua Varietas Mentimun (Cucumis sativus L.) Akibat Pengaplikasian Hormon Giberelin
Authors: Rosa Angela Griya Adinda
Published: March 2024

Tanaman mentimun (Cucumis sativus L.) adalah salah satu komoditas pertanian yang tak jarang mengalami kendala seperti kualitas buah yang kurang baik dan gugur bunga sebelum berkembang menjadi buah. Aplikasi giberelin pada tanaman dapat memicu pembungaan tanaman mentimun. Penelitian ini dilakukan guna mempelajari pengaruh pengaplikasian hormon giberelin pada pertumbuhan dan hasil dua varietas mentimun dan memperoleh konsentrasi hormon giberelin yang efektif dan efisien. Penelitian dilakukan pada bulan Februari sampai April 2023. Penelitian dilaksanakan di Politeknik Pembangunan Pertanian Kampus II yang berlokasi di Tanjungrejo, Kecamatan Sukun, Kota Malang, Jawa Timur. Penelitian menggunakan rancangan petak terbagi dengan 3 kali ulangan. Petak utama yaitu varietas tanaman mentimun dengan 2 taraf dan anak petak yaitu konsentrasi giberelin dengan 5 taraf. Analisis data menggunakan analisis varian (ANOVA) dan dilanjutkan uji Beda Nyata Terkecil (BNT) taraf 5%. Hasil menunjukkan bahwa terjadi interaksi antara varietas mentimun dan aplikasi giberelin terhadap luas daun. Varietas mentimun dan aplikasi giberelin mempengaruhi pertumbuhan dan hasil. Aplikasi giberelin konsentrasi 200 ppm mempengaruhi peningkatan pertumbuhan dan hasil.
Pengaruh Berbagai Dosis Pupuk Kandang Ayam terhadap Pertumbuhan dan Hasil Dua Varietas Kangkung Darat (Ipomoea reptans Poir.)
Authors: Fairuza Rizqita Dhia
Published: March 2024

Kangkung merupakan tanaman musiman sehingga memiliki masa pertumbuhan yang singkat. Total produksi kangkung di Kabupaten Nganjuk pada tahun 2021 mencapai 151 kw. Sementara itu, hasil analisa tanah di Kecamatan Pace, Kabupaten Nganjuk menunjukkan kandungan hara yang rendah. Dengan demikian, upaya yang dapat dilakukan ialah memberikan pupuk kandang ayam sebagai penambah unsur hara dalam tanah serta pemilihan varietas yang tepat. Penelitian dilaksanakan di Kecamatan Pace, Kabupaten Nganjuk dengan ketinggian 52 m dpl pada bulan Mei - Agustus 2021. Penelitian ini dilakukan menggunakan rancangan acak kelompok (RAK) faktorial yang terdiri dari 10 kombinasi perlakuan dan diulang sebanyak 3 kali. Faktor pertama terdiri dari dosis pupuk kandang ayam yaitu 0 g per polibag (D0), 200 g per polibag (D1), 300 g per polibag (D2), 400 g per polibag (D3) dan 500 g per polibag (D4). Faktor kedua terdiri dari jenis varietas yaitu Bisi (V1) dan Serimpi (V2) pada polibag berukuran 17x35 cm. Analisis data dilakukan dengan uji F pada taraf 5%, apabila terdapat pengaruh nyata maka dilanjutkan dengan BNT pada taraf 5%. Parameter yang diamati dan diukur adalah tinggi tanaman, jumlah daun, bobot segar konsumsi, bobot segar akar dan panjang akar. Hasil analisis ragam diketahui bahwa terdapat interaksi antara pemberian berbagai dosis pupuk kandang ayam dengan dua varietas kangkung pada pengamatan tinggi tanaman 5 HST. Namun secara terpisah, Varietas Bisi memberikan hasil yang lebih tinggi dibandingkan Varietas Serimpi. Hal ini dapat dilihat pada variabel pengamatan tinggi tanaman (cm) umur 20 dan 25 HST, serta jumlah daun (helai) umur 10, 15 dan 25 HST.
Present and Future of Industrial Robotisation
Authors: Buri Zsolt
Published: March 2024

The following paper analyzing the installation of industrial robotisation in sectors and regions, in addition carry out forcastings on historical data. In recent years, automation and the use of industrial robotics have increased exponentially in the manufacturing sector. Given that companies prioritize enhanced production efficiency, quality assurance, and safety, it is evident that substantial investment and implementation of automation continue to occur in manufacturing facilities worldwide. The number of industrial robots globally has been growing steadily since 2010. However, the rate of growth has slowed from 2020 onwards. The impact of the Covid-19 epidemic was still felt in 2020, but the deployment of industrial robots increased significantly in 2021. Global industrial robot deployment is projected to continue to grow in the coming years, although the rate of increase may vary between regions and countries. The analysis showed a number of differences between regions in the number and growth rate of industrial robot deployments. Asia and Australia are the largest markets for robots and the number of robots deployed is expected to continue to grow in the future. Europe is the second largest market and, although growing at a slower rate, industrial robot deployment is also increasing steadily. In the Americas, growth is slower than in other regions, but still increasing. Global growth trends suggest that there will be further growth in the coming years and that the deployment of industrial robots will become more widespread in different parts of the world.
Traumatic Brain Injury: Current Trends Towards the Increase of the Number of Cases and Its Diagnosis
Authors: Kozan Nataliia , Dunaiev Oleksandr
Published: March 2024

Introduction The global medical community calls traumatic brain injury (TBI) a "silent epidemic" because the latter causes a significant increase in mortality and disability more than any other mechanical injury. Although today's world achievements demonstrate powerful technical capabilities for accurate diagnosis of the time of occurrence and mechanism of TBI, however, the commission examination departments of the forensic medical examination bureau are considering more and more cases of diagnostic errors made by forensic medical experts during autopsies , which later caused protracted legal proceedings.

Aim. In this study, we aimed to evaluate the modern diagnostic possibilities of methods for verifying the diagnosis and the time formation of TBI.

Methods. Literary data on the prevalence and methods of diagnosing TBI at the present time were analyzed.

Results. The degree and severity of TBI, as well as its course, after the initial mechanical injury depends on many factors. In the last decade, there has been an intensification of research on protein biomarkers based on biofluids (blood, cerebrospinal fluid) for intravitality diagnosis. However, not all markers provide reliable information that would correlate with the presence of TBI. Until now, the "gold standard" of diagnosis is an autopsy, next to which radiological studies are effectively used.

Conclusion.

Taking into account the global statistical data, postmortem diagnosis of TBI is an important issue of forensic traumatology, which requires a careful approach.
Study of Morphofunctional Relationships Between Adrenal Pathology and Hypothyroidism and Iodine Deficiency (Review)
Authors: Harhaun Oleksandra
Published: March 2024

Hormones that produce the adrenal glands affect most of the functional and metabolic processes in the human body, and also ensure its stability under stress. Since the adrenal glands are a stress-sensitive organ in the endocrine regulation system of all body functions, the development of adaptation mechanisms under the conditions of stress factor action can be characterized by their morphological state. However, thyroid diseases associated with a persistent lack of hormones are the cause of impaired homeostasis, metabolism and oxygen exchange. Since the adrenal glands belong to the vital target organs of the thyroid gland, of particular interest is the study of their functional relationships in normal and pathological conditions.
Factors affecting purchase intention and consumer behavior of gym equipment through live streaming
Authors:   Faculty of Business and Communications, INTI International University, Nilai, Malaysia, Hoo Wong Chee , Annamalah Sanmugam ,   Research and Innovation Management Centre (RIMC), SEGi University, Petaling Jaya 47810, Malaysia, Paraman Pradeep ,   Research and Innovation Management Centre (RIMC), SEGi University, Petaling Jaya 47810, Malaysia, Pung Ng Chee ,   Faculty of Business and Communications, INTI International University, Nilai, Malaysia
Published: March 2024

This study looks into why more people are choosing to shop through live streams rather than in traditional, physical stores. Despite the growing trend, there's not much information on why this shopping method is preferred. The goal of this research is to explore the reasons behind consumers' preference for live stream shopping and how it affects their intention to make future purchases. This study uses several theories to understand this behavior: the Use and gratification theory, which suggests people enjoy the entertainment and information provided by live streams; the source credibility theory, focusing on the presenter's attractiveness and trustworthiness; and the theory of planned behavior, which helps explain how people decide to buy something. The research focuses on online users earning more than RM1,000 who have bought fitness equipment during a live stream. A survey was shared through social media, gathering 393 responses. The analysis was done using linear regression. The results aim to help sellers understand what motivates buyers to complete a purchase, offering insights to develop better sales strategies. The findings also suggest how fitness equipment companies can use these theories to improve their online sales model.
Análisis de tendencias para la cadena de hortalizas - producto ají :consumo, demanda, mercado internacional e investigación en Colombia
Authors: Flórez Martínez Diego Hernando
Published: March 2024

La dinámica del sector hortofrutícola a nivel internacional tiene como prioridad la importancia de los productos que se comercializan bajo este, entorno a su representatividad en temas como la seguridad alimentaria, la industria de transformación de alimentos, la diferenciación por calidades y cualidades entorno a potenciales materias primas o productos de último consumo diferenciados, favorecidos por tendencias de consumo, demanda interna y acuerdos bilaterales de comercio exterior
Generation Z’s Health Information Avoidance Behavior: Insights From Focus Group Discussions
Authors: Jia Chenjin , Li Pengcheng
Published: March 2024

Background

Younger generations actively use social media to access health information. However, research shows that they also avoid obtaining health information online at times when confronted with uncertainty.

Objective

This study aims to examine the phenomenon of health information avoidance among Generation Z, a representative cohort of active web users in this era.

Methods

Drawing on the planned risk information avoidance model, we adopted a qualitative approach to explore the factors related to information avoidance within the context of health and risk communication. The researchers recruited 38 participants aged 16 to 25 years for the focus group discussion sessions.

Results

In this study, we sought to perform a deductive qualitative analysis of the focus group interview content with open, focused, and theoretical coding. Our findings support several key components of the planned risk information avoidance model while highlighting the underlying influence of cognition on emotions. Specifically, socioculturally, group identity and social norms among peers lead some to avoid health information. Cognitively, mixed levels of risk perception, conflicting values, information overload, and low credibility of information sources elicited their information avoidance behaviors. Affectively, negative emotions such as anxiety, frustration, and the desire to stay positive contributed to avoidance.

Conclusions

This study has implications for understanding young users’ information avoidance behaviors in both academia and practice.
Assessment of the bone biological age using multiple regression and neural network analysis
Authors: Grygorieva N.V. , Pisaruk A.V. , Gurianov V.H. , Musiіenko А.S. , Shatylo V.V.
Published: March 2024

Background. Nowadays, many studies confirm the increased risk of osteoporosis in the elderly. Strategies for optimizing diagnosis include a combined use of various methods, so calculating bone biological age (BA) can also be important for disease prediction. Recently, some new methodological approaches to BA calculation with the mathematical methods implementation were proposed. However, studies utilizing advanced approaches, particularly neural network (NN) in Ukraine, are limited. The purpose of this study was to develop a bone BA model and compare its accuracy using stepwise multiple regression (MLR) and NN analysis methods. Materials and methods. In a single-center cohort study, we retrospectively analyzed the data of 3,071 healthy women aged 40–90 years. The analysis of the study indices included the anthropometric parameters, dual-energy X-ray absorptiometry indices (DXA), and the parameters of the 10-year probability of major osteoporotic fractures (FRAX). For the development of bone BA models, MLR methods were used and the construction of the NN model was performed using a multilayer perceptron model. Results. As a result of the calculation, we received the MLR formula for bone BA determining bone mineral density (BMD) of lumbar spine and radius, minimal femoral and hip BMD as well as Trabecular Bone Score, and FRAX. The MLR equation allowed to calculation of the bone BA with an error of less than 4.9 years for study and control groups and demonstrated the high connection between calculated and chronological (ChrA) ages (R = 0.77; p < 0.00001). The use of NN analysis showed the best results using 6 input variables and 1 internal layer of 7 neurons. The assessment of the connection between BA and ChrA demonstrated a high coefficient of correlation (R = 0.88; p < 0.000001) with an average error of age calculation of less than 3.7 years for the study and control groups. Conclusions. A comparison of the accuracy of both models in bone BA estimation revealed a significant advantage of the deep learning NN, however, the use trained NN model requires specialized software, whereas the MLR formula can be used without additional costs.
Analysis of the stress-strain state of a three-dimensional model a shoulder hemiarthroplasty after changing the greater tubercle position on the shoulder
Authors: Strafun S.S. , Zanko I.S. , Lazarev I.A.
Published: March 2024

Background. The greater tubercle position change in shoulder hemiarthroplasty is of great importance for the shoulder joint contact surfaces’ stress-strain state (SТS). One of the important conditions for restoring a full range of motion in the shoulder joint after hemiarthroplasty and a longer service life of the endoprosthesis is the anatomical location of the greater tubercle. The purpose was to develop a three-dimensional model and study the STS of elements of the shoulder joint and implants of a hemiarthroplasty after changing the greater tubercle position on the shoulder. Materials and methods. The SolidWorks software package was used in order to construct a simulated 3D model of the shoulder joint, taking anatomical and anthropometric data into conside­ration to make the model as close to the real shoulder joint as possible. The ANSYS software package was used to calculate the shoulder joint models of the total load vector at different positions of the total load vector, depending on the greater tubercle of the humerus position. Results. The analysis of the shoulder joint mo­del elements’ STS with different greater tuberosity positioning and a shoulder abduction angle of 60° showed that the maximum increase in stress values is observed on the glenoid cavity subchondral bone when the greater tubercle of the humerus is transposed by 1 cm anterior — in 3.4 times, σmax up to 4.02 MPa. Moving the big tubercle by 1 cm distally is an optimal position in which the subchondral bone of the glenoid cavity undergoes minimum stress and deformation forces. Conclusions. The change in pressure on the contact surfaces is significant when changing the position of the greater tuberosity, which will undoubtedly affect the volume and range of motion in the postoperative period. Taking into account the data of the stress values on the contact surfaces obtained from our simula­ted 3D computer model of the shoulder joint allows improving the quality of preoperative planning and improving shoulder function and possible complications in the postoperative period.
Study on the Path of Cultivating “New Abilities” of Contemporary College Students’ Employment
Authors: Yang Chuanli , Zhang Qiaohui , Li Mingdong
Published: March 2024

With the development of the society and the increasing enrolment rate of higher education, the requirements for the employment ability of college students have been gradually improved, especially the college students with the “new ability” consistent with the needs of the society have obvious employment advantages, this paper analyses the “new ability” of college students from the three dimensions of professional ability, humanistic ability and basic ability. This paper analyses the “new ability” in three dimensions: professional ability, humanistic ability and basic ability, and combines the current cultivation mode and cultivation path of colleges and universities to analyze the matching degree of the ability demand of the society for college students, the “new ability” of college students and the cultivation path of colleges and universities to propose that colleges and universities cultivate the “new ability” that is agreed by the society for college students. Then, it proposes effective methods for colleges and universities to cultivate socially acceptable “new competences” necessary for college students.
Corpus‐based analysis of spoken narratives. Introducing a corpus and a search tool
Authors:   Department of Slavic and Hungarian Studies, Humboldt‐University of Berlin Germany, Wasserscheidt Philipp , Mandić Marija ,   Institute for Balkan Studies, Serbian Academy of Sciences and Arts, Serbia, Vollstädt Nadine ,   Department of Slavic and Hungarian Studies, Humboldt‐University of Berlin Germany, Jovanović Ana ,   Faculty of Philology, University of Belgrade, Serbia, Tanasijević Ivana ,   Faculty of Mathematics, University of Belgrade, Serbia, Vučina Simić Ivana , Yazhinova Uliana ,   Faculty of Philology, University of Belgrade, Serbia,   Department of Slavic and Hungarian Studies, Humboldt‐University of Berlin Germany, Zečević Anđelka ,   Faculty of Mathematics, University of Belgrade, Serbia
Published: March 2024

This paper is concerned with the development of a synchronic corpus containing Serbian spoken narratives and its use for narrative analysis. The corpus (CRONUS – Corpus for the Research On Narratives and their Use in Speech) is optimised to study the structure and use of this discourse genre. First, data sources are presented, followed by corpus creation and access. The semi-spontaneous spoken narratives were orthographically transcribed, and the corpus deeply annotated, with special emphasis on the annotation of narrative sections following Labov’s approach and the annotation of argument structure constructions in the sense of Construction Grammar. Three case studies demonstrate how morphological and constructional annotation can be effective for the exploration of narratives.
PERBEDAAN ORGANIZATIONAL CITIZENSHIP BEHAVIOR (OCB) PADA PEGAWAI DENGAN TIPE KEPRIBADIAN A DAN B
Authors: Hendarto Veldinor Dwi
Published: March 2024

Karyawan yang bekerja di bidang industri mempunyai job description yang berbeda – beda. Perilaku yang mengarah pada organizational citizenship behavior (OCB) akan muncul tergantung dari insiatif masing – masing karyawan dalam membantu rekan kerjanya. Karyawan yang berperilaku OCB mempunyai dampak positif untuk keefektifan perusahaan dalam menghasilkan produksi yang berkualitas. Salah satu faktor yang dapat memunculkan perilaku OCB ialah faktor kepribadian.Tujuan dari penelitian ini ialah untuk mengetahui perbedaan Organizational Citizenship Behavior (OCB) ditinjau pada karakteristik kepribadian. Penelitian ini menggunakan skala kepribadian dengan model skala Guttman dan Skala Organizational Citizenship Behavior dengan model skala Likert. Jumlah subjek dalam penelitian ini sejumlah 134 dengan status karyawan tetap. Hasil dalam penelitian ini menunjukkan ada perbedaan Organizational Citizenship Behavior antara tipe kepribadian A dan B (t = 3.910; p = 0.000).   Kata kunci: Organizational citizenship behavior, karyawan, kepribadian   The employees who work in the industry has a different job description. The behavior of OCB will appear depending on the initiative of the employees to help his co-workers. Theemployees who behave OCB has a positive impact on the effectiveness of the company in the production of high quality produce.One of the factors that can bring OCB are personality factors. The purpose of this study was to determine differences in Organizational Citizenship Behavior reviewed the characteristics of personality.One of the factors that can influence the behavior of OCB are personality factors. The purpose of this study was to determine differences in Organizational Citizenship Behavior reviewed the characteristics of personality.This study used a non-test method is by using a scale model of personality with the Guttman scale and Organizational Citizenship Behavior Scale with Likert scale models. The number of the subject of as much as 134 people with the status of permanent employees an age range of 25-50 years.The results of this study showed that there are differences in Organizational Citizenship Behavior, between personality types A and B is evidenced by test of the t-test that obtain (t=3.910 ; p=0.000).   Keywords: Oganizational citizenship behavior, employee, personality.
ANALISIS KOMUNIKASI PENGGUNAAN MEDIA SOSIAL INSTAGRAM TERHADAP PENYAKIT ‘AIN BERDASARKAN PERSPEKTIF ISLAM
Authors: Andriani Astri Dwi
Published: March 2024

The ability of Instagram users to post pictures or videos of their daily lives on social media platforms can lead to various reactions and interpretations from the general public, one of which causes 'ain' disease or diseases that come from views accompanied by excessive jealousy and amazement. The purpose of this study was to analyze the relationship between social media Instagram and 'ain' disease based on an Islamic perspective. Quantitative technique with descriptive approach is used in this research. Data were collected using a questionnaire as part of the survey. Data analysis was carried out by comparing survey findings with the literature. The results showed that most of the respondents felt happy and enthusiastic when their Instagram followers responded to the photos and videos they shared. In addition, respondents know about 'ain even though they have never experienced symptoms of 'ain disease. The conclusion of the study shows that the use of Instagram social media opens the opportunity to be exposed to the disease 'ain due to a sense of pride, arrogance, envy, and a sense of amazement without being accompanied by words of blessing.
Estimation of the indirect network effect: On the example of television advertising
Authors:   HSE University, Nizhnii Novgorod, Russia, Khlyupina Veronika
Published: March 2024

The platform is an intermediary between groups of users whose direct interaction without the platform would be complicated or unachievable. A distinctive feature of platform markets is the presence of indirect network effects (or cross‐platform effects), which consist of the fact that the demand of one group of users for platform services affects the demand of another group of users. In the presence of multidirectional network effects, an important platform’s business decision is to determine the optimal volume of services that create negative network effects, since after a certain amount of effects the company starts to lose users on the other side of the platform. For the business model to be successful and profitable, the platform should take this relationship into account. This study makes a quantitative assessment of cross‐ platform network effects using data from the Russian television market. The author of the study obtained statistically significant positive audience effect and negative advertising effect.
Simple and complex difference-in-differences approach
Authors:   HSE University, Moscow, Russian Federation, Kotyrlo Elena
Published: March 2024

The paper presents extensions of the popular difference‐in‐differences approach (DD) from 2×2 design on multiple time‐period, multiple groups, fuzzy DD, non‐staggered treatment and approaches to measure distributional treatment effect. The paper describes assumptions for consistent estimation of the treatment effect by two‐way fixed effects model (TWFE) and presents the problem leading to inconsistent estimates justifying the application of alternative estimators. The paper briefly introduces methods developing DD for multiple‐period multiple‐group cases based on TWFE and alternative approaches. The proposed techniques allow treatment evaluation in the frame of DD when canonical TWFE leads to inconsistent estimates. Some approaches allow replacement of the well‐known parallel trend assumption (PTA) for a conditional PTA or time randomisation. The paper refers to implementations of these methods in Stata and R. Simulation modelling demonstrates that the stated properties of the alternative estimators are not always reliable.
Bank capital and liquidity creation: Evidence from the Russian experience
Authors:   HSE University, Moscow, Russian Federation, Gorodilov Aleksei , Sokolov Vladimir ,   HSE University, Moscow, Russian Federation
Published: March 2024

In this paper we examine the relationship between regulatory bank capital and liquidity creation. We test the “financial fragility‐crowding out hypothesis” and the “risk absorption hypothesis” on the sample of 885 Russian banks over the 2010–2019 period. Inspired by Berger and Bouwmanʼs (2009) approach, we develop a liquidity creation measure that simultaneously considers the category and maturity of secondary accounts. After conducting several robustness checks, we report that bank capital is negatively related to liquidity creation which supports the “financial fragility‐crowding out hypothesis”. We also show that this relationship is independent of the bank size and the economic cycle. Our findings suggest that the Central Bank of Russia faces a trade‐off between financial stability and liquidity creation by the banking system, as tougher regulatory capital requirements decrease banks’ abilities to finance the real sector of the economy.
OCL-Based Test Case Optimisation with Modified APFD Metric
Authors: Jin Kunxiang , Lano Kevin
Published: March 2024

Testing is one of the most time-consuming and unpredictable processes
within the software development life cycle. As a result, many Test Case
Optimisation (TCO) techniques have been proposed to make this process
more scalable. Object Constraint Language (OCL) was initially introduced
as a constraint language to provide additional details to UML models.
However, as OCL continues to evolve, an increasing number of systems are
being expressed by this language. Despite this growth, a noticeable
research gap exists for the testing of systems whose specifications are
expressed in OCL. In our previous work, we verified the effectiveness
and efficiency of performing the Test Case Prioritisation (TCP) process
for these systems. In this study, we extend our previous work by
integrating the Test Case Minimisation (TCM) process to determine
whether TCM can also benefit the testing process under the context of
OCL. The evaluation of TCO approaches often relies on well-established
metrics such as the Average Percentage of Fault Detection (APFD).
However, the suitability of APFD for Model-Based Testing (MBT) is not
ideal. This paper addresses this limitation by proposing a modification
to the APFD metric to enhance its viability for MBT scenarios. We
conducted four case studies to evaluate the feasibility of integrating
the TCM and TCP processes in our proposed approach. In these studies, we
applied the multi-objective optimisation algorithm NSGA-II and the
genetic algorithm independently to the TCM and TCP processes. The
objective was to assess the effectiveness and efficiency of combining
TCM and TCP in enhancing the testing phase. Through experimental
analysis, the results highlight the benefits of integrating TCM and TCP
in the context of OCL-based testing, providing valuable insights for
practitioners and researchers aiming to optimise their testing efforts.
Specifically, the main contributions of this work include: 1).
We introduce the integration of the TCM process into the TCO process for
systems expressed by OCL. This integration benefits the testing process
further by reducing redundant test cases while ensuring sufficient
coverage. 2). We comprehensively analyse the limitations
associated with the commonly used metric, APFD, and then a modified
version of the APFD metric has been proposed to overcome these
weaknesses. 3). We systematically evaluate the effectiveness
and efficiency of OCL-based TCO processes on four real-world case
studies with different complexities.
Interoception as a function of hypnotizability during rest and a heartbeat counting task
Authors: Giusti Gioia , Zelič Žan , Callara Alejandro , SEBASTIANI LAURA , Santarcangelo Enrica
Published: March 2024

Interoception is mainly related to morpho-functional characteristics of
the insula, which shows hypnotizability-related differences in grey
matter volume. Interoceptive accuracy (IA, measured by the heartbeat
counting task and by HEP, heartbeat evoked cortical potential) is lower
in high (highs) than in low hypnotizables (lows). The aim of the present
study was to investigate IA in highs, lows, and medium hypnotizables
(mediums), who represent most of the population (according to the
Stanford Hypnotic Susceptibility Scale (SHSS), Form A), during a session
including a simple relaxation (Part 1) and three trials of consecutive
open eyes, closed eyes, heartbeat counting and post-counting conditions
(Part 2). ECG and EEG were recorded in 14 highs, 14 mediums and 18 lows.
HEP were extracted throughout the entire session and IA index was
obtained for the heartbeat counting task. In Part 1, significant
hypnotizability-related differences were observed in the right central
region in both early and late HEP components, with lows showing positive
and highs/mediums negative HEP amplitudes. In Part 2, the same group
differences were limited to the early HEP component. Moreover, in the
left frontal regions, only mediums modified their HEP during the
counting task with respect to the open/closed eyes conditions, whereas
highs displayed HEP differences between counting and post-counting rest.
In conclusion, highs and mediums seem to be more similar than mediums
and lows regarding HEP, despite the absence of differences in the
counting task. Nonetheless, a negative correlation between SHSS scores
and HEP amplitudes was observed in the regions showing group
differences.
Pupil dilation reveals the intensity of touch
Authors: Brink Antonia Francisca Ten , Heiner Iris , Dijkerman Chris , Strauch Christoph
Published: March 2024

Touch is important for many aspects of our daily activities. One of the
most important tactile characteristics is its perceived intensity.
However, quantifying the intensity of perceived tactile stimulation
beyond subjective self-reports remains challenging. Here, we show that
pupil responses can objectively index the intensity of tactile
stimulation in the absence of overt participant responses. In Experiment
1 (n=32), we stimulated three reportedly differentially sensitive body
locations (finger, forearm, calf) with a single tap of a tactor while
tracking pupil responses. Tactile stimulation resulted in greater pupil
dilation than a baseline without stimulation. Furthermore, pupils
dilated more for the more sensitive location (finger) than for the less
sensitive locations (forearm, calf). In Experiment 2 (n=20) we extended
these findings by manipulating the intensity of the stimulation with
three different intensities, here a short vibration, always at the
little finger. Again, pupils dilated more when being stimulated at
higher intensities as compared to lower intensities. In summary, pupils
dilated more for more sensitive parts of the body at constant
stimulation intensity and for more intense stimulation at constant
location. Taken together, the results show that the intensity of
perceived tactile stimulation can be objectively measured with pupil
responses – and that such responses are a versatile marker for touch
research. Our findings may pave the way for previously impossible
objective tests of tactile sensitivity, for example in minimally
conscious state patients.
ENSURING DATA SECURITY OF INDUSTRIAL ROBOT ARMS THROUGH HYBRID ENCRYPTION METHOD AND TESTING
Authors: Erbil Mustafa Emre , Ozkahraman Merdan , Bayrakçı Hilmi Cenk
Published: March 2024

Robotics technology is extensively employed in various industries today
to enhance operational efficiency. Industrial robot arms, which operate
across a wide range of sectors, from personal and commercial
transportation to heavy-duty tasks such as agriculture, construction,
and mining, play an indispensable role in factory and manufacturing
facilities. These robot arms not only contribute to labor savings but
also enhance workplace safety by mitigating potentially hazardous
situations that could threaten human health. The objective of this study
is to ensure the data security of robot arms and prevent potential data
leaks during wired or wireless communications. In this context, a hybrid
encryption method comprising Elliptic Curve Cryptography (ECC),
ChaCha20, and Poly1305 is proposed to securely facilitate communication
between industrial robot arms and control systems, as well as
communication among industrial robot arms themselves. This method
combines the robust asymmetric encryption properties of ECC, the fast
and energy-efficient symmetric encryption advantages of ChaCha20, and
the data integrity protection benefits of the Poly1305 message
authentication code (MAC) algorithm. By implementing this hybrid
encryption method using the Python programming language, data
communication between robot arms and control systems is securely
encrypted, ensuring the confidentiality and integrity of the data. The
RSA (Rivest-Shamir-Adleman) asymmetric encryption method, an alternative
to ECC, is also included in the ChaCha20-Poly1305-RSA algorithm,
allowing a comparison between the proposed ChaCha20-Poly1305-ECC
algorithm and a different-sized data set of the same data type. The
study investigates and tabulates the difference in performance time
between RSA and ECC. Subsequently, the ChaCha20-Poly1305-ECC algorithm
is independently tested with various data types and sizes, with the
results presented. In conclusion, this study represents a significant
step towards enhancing the data security of industrial robot arms,
providing effective protection against potential leaks during wireless
or wired communications, and elucidating the rationale for employing the
proposed encryption method.
Dynamic vibration analysis of cantilever beams on nonlinear fractional viscoelastic foundation under Gaussian white noise
Authors: Qu Jingguo , Cui Yuhuan , Cui Mengyao , Chen Yiming , Yang Aimin , Fan Qianqian
Published: March 2024

This paper presents the dynamic response of cantilever beam on
fractional-order nonlinear viscoelastic foundation subjected to Gaussian
white noise. The control equations of the cantilever beam on
viscoelastic foundation are established using Hamilton’s principle. The
problem is solved using the shifted Chebyshev polynomial algorithm, and
the control equations are transformed into a system of nonlinear
algebraic equations. Numerical examples analyse the correction error and
the second norm error, confirming the effectiveness and accuracy of the
algorithm in solving such problems. Furthermore, the algorithm’s
robustness was verified by comparing the responses of Gaussian white
noise and non-Gaussian white noise cantilever beam on the viscoelastic
foundation. The study examined the impact of various loads and
parameters on the cantilever beam, as well as the effect of different
harmonic loads on its stress. The research results are in line with the
existing literature. These studies offer valuable guidance for practical
engineering and enhance comprehension of the dynamic response of
cantilevers on foundation in complex environments.
Manejo de crisis convulsiva y estatus epiléptico en unidad de cuidados intensivos pediátricos
Authors:   Investigadora Independiente, Villacrés Mosquera Jennifer Paola , Laso Gualacata Mónica Isabel ,   Investigadora Independiente, Falconi Toro Daniel Andres ,   Investigador Independiente, Tipán Quishpe Diana Matilde ,   Investigadora Independiente
Published: March 2024

El estado o estatus epiléptico (EE) es una de las urgencias neurológicas más frecuentes en la infancia, con una morbilidad y mortalidad elevadas, aunque inferiores a las de adultos, y con alta probabilidad de secuelas neurológicas. La presente investigación se enmarca dentro de una metodología de tipo bibliográfica documental. Ya que es un proceso sistematizado de recolección, selección, evaluación y análisis de la información, que se ha obtenido mediante medios electrónicos en diferentes repositorios y buscadores tales como Google Académico, Science Direct, Pubmed, entre otros, empelando para ellos los diferentes operadores booleanos y que servirán de fuente documental, para el tema antes planteado. No hay que olvidar que existen diferentes tipos de estatus convulsivos, sin embargo, los manejos farmacológicos suelen ser los mismos, hay una amplia gama de fármacos disponibles para combatir esta patología, sin embargo, se debe valorar muy bien el estado del niño para escoger su administración, y esto se basa en la duración del episodio epiléptico, hay tratamientos de primera línea (0 – 5 min), tratamientos de segunda línea para episodios mayores de 5 minutos pero que no excedan la hora y tratamientos de terceras línea para eventos convulsivos de más de 1 hora, el objetivo del tratamiento es controlar el evento convulsivo dentro de los primeros 5 minutos, cuando este se prolonga por mucho más tiempo existen probabilidades de daño neurológico y hasta la muerte.