bluuebunny/crossref_metadata_2025 huggingface dataset:
Augmented reality-based affective training for improving care communication skill and empathy
Authors: Nakazawa Atsushi , Iwamoto Miyuki , Kurazume Ryo , Nunoi Masato , Kobayashi Masaki , Honda Miwako
Published: July 2023

It is important for caregivers of people with dementia (PwD) to have good patient communication skills as it has been known to reduce the behavioral and psychological symptoms of dementia (BPSD) of PwD as well as caregiver burnout. However, acquiring such skills often requires one-on-one affective training, which can be costly. In this study, we propose affective training using augmented reality (AR) for supporting the acquisition of such skills. The system uses see-through AR glasses and a nursing training doll to train the user in both practical nursing skills and affective skills such as eye contact and patient communication. The experiment was conducted with 38 nursing students. The participants were assigned to either the Doll group, which only used a doll for training, or the AR group, which used both a doll and the AR system. The results showed that eye contact significantly increased and the face-to-face distance and angle decreased in the AR group, while the Doll group had no significant difference. In addition, the empathy score of the AR group significantly increased after the training. Upon analyzing the correlation between personality and changes of physical skills, we found a significant positive correlation between the improvement rate of eye contact and extraversion in the AR group. These results demonstrated that affective training using AR is effective for improving caregivers’ physical skills and their empathy for their patients. We believe that this system will be beneficial not only for dementia caregivers but for anyone looking to improve their general communication skills.
A new surgical tape with a mesh designed to prevent skin tears and reduce pain during tape removal
Authors: Rikihisa Naoaki , Mitsukawa Nobuyuki , Rikhisa Hiroaki , Nakao Masayuki
Published: July 2023

We devised a surgical tape that prevents skin tears while maintaining adhesive strength. Under the assumption that microscopic damage to the skin is reflected in pain felt on the skin, we statistically analyzed skin pain when the tape was peeled off to show the skin protection effect of the mesh on the new tape. This tape has a three-layer structure consisting of a tape substrate, adhesive, and mesh. When the tape is applied to the skin, a mesh is located between the adhesive and the skin. The adhesive contacts the skin through the mesh holes and fixes the substrate to the skin; it does not come into contact with the skin at the mesh body; therefore, the adhesive-skin contact area is reduced. In this experiment, we used surgical tape with and without mesh. At 8 hours after the application of each tape to the forearm of five adult males, it was removed. All tapes were peeled off while maintaining an angle of approximately 120° between the skin and tape substrate. For the tape with mesh, the tape substrate was peeled off in two ways: peeling off the substrate together with the mesh and peeling off the substrate, leaving the mesh on the skin. A perception and pain quantification analyzer (Pain Vision™) was used to quantify pain. The data were compared and examined statistically (Friedman’s test and Wilcoxon’s coded rank test). The least pain was experienced while peeling off the tape substrate, leaving the mesh on the skin. There was a significant difference in pain levels among the three tape removal methods. There was also a significant difference between the two peeling methods in the experimental group. The skin protection effect of the mesh reduced pain when the surgical tape was removed.
A physics-based model of swarming jellyfish
Authors: Gengel Erik , Kuplik Zafrir , Angel Dror , Heifetz Eyal
Published: July 2023

We propose a model for the structure formation of jellyfish swimming based on active Brownian particles. We address the phenomena of counter-current swimming, avoidance of turbulent flow regions and foraging. We motivate corresponding mechanisms from observations of jellyfish swarming reported in the literature and incorporate them into the generic modelling framework. The model characteristics is tested in three paradigmatic flow environments.
Experimental evaluation of 3D printed Venturi-type Fine Bubble Generators with internal obstacles
Authors: Toma Gabriel , Ikemoto Riku , Batalu Dan , Alcántara Avila J. Rafael
Published: July 2023

The generation of Fine Bubbles (FB) using Venturi-type nozzles has been researched experimentally and mathematically using CFD simulations. Nevertheless, little has been discussed about the addition of obstacles in the convergent or divergent parts of the nozzle. Therefore, this research evaluates the performance of six fine bubble generation nozzles that were designed using cloud-based 3D modeling software and 3D printing. The designed nozzles were evaluated in terms of macroscopic features measured through oxygen gas absorption experiments and microscopic features such as size distribution and zeta potential measurements. Moreover, two indexes were proposed based on the gas absorption dynamic responses. These indexes were included in three objective functions that can be solved as mono-objective or multi-objective optimization problems. The nozzles with the best performance were evaluated regarding size distribution and zeta-potential. The results showed that installing obstacles in the divergent part of the nozzle attained higher gas absorption, smaller size of ultra fine bubbles (UFB), and more negative zeta potential.
Calcitonin measurement in fine-needle washout fluids in detecting medullary thyroid cancer
Authors: Zuraeva Z. T. , Nikankina L. V. , Kolesnikova G. S. , Abdulhabirova F. M. , Beltsevich D. G. , Malysheva N. M. , Mikheenkov A. A.
Published: July 2023

BACKGROUND: The diagnostic value of calcitonin measurement in fine-needle aspiration biopsy wash-out fluid is a promising tool in the diagnosis of medullary thyroid cancer.

AIMS: We assessed the potential usefulness and the diagnostic significance of Ct-FNAB alone in comparison with cytology in the diagnosis and localization of primary or metastatic MTC.

MATERIALS AND METHODS: For this purpose, we retrospectively examined data from 67 patients with suspicious thyroid nodules and/or lymph nodes who ultimately underwent surgical treatment at the Endocrinology Research Centre in 2015–2020. The primary endpoint of the study was to evaluate the diagnostic accuracy of Ct-FNAB when compared to cytological examination. The secondary endpoint was to determine the optimal diagnostic level for use in clinical practice.

RESULTS: The obtained results showed that high Ct-FNAB concentrations were present in all histologically proven MTC, either in thyroid gland (sensitivity 92.5%, specificity 100%) or neck masses (sensitivity 88.5%, specificity 100%). The optimal diagnostic threshold for Ct-FNAB values from thyroid nodes was > 122 pg/ml, from lymph nodes >35.8 pg/ml.

CONCLUSIONS: Our findings suggest that Ct-FNAB is a highly reliable diagnostic procedure to identify primary and recurrent/metastatic MTC. The actual relevance of this technique in the management of MTC needs further longitudinal studies in a larger number of patients.
Diabetes mellitus and the female reproductive system tumors
Authors: Sharafutdinova K. I. , Shlyapina V. S. , Baeva A. I. , Timurshin A. A. , Sabanaeva I. E. , Nakieva A. G. , Kalashnikova M. F. , Khabibov M. N.
Published: July 2023

The article discusses various pathophysiological conditions and processes that lead to the development of tumors in diabetes mellitus. These include obesity, hyperglycemia, hyperinsulinemia, inflammation, and oxidative stress. The data of epidemiological studies are given, in which it was found that diabetes mellitus (both type 1 and type 2) increases the risk of developing the female reproductive system tumors, such as ovarian cancer, endometrial cancer, while for cervical cancer, vaginal cancer and vulvar cancer, such a relationship has not been clearly identified.
Primary bilateral macronodular adrenal hyperplasia: clinical and laboratory features
Authors: Chevais A. , Elfimova A. R. , Beltsevich D. G.
Published: July 2023

BACKGROUND: Primary bilateral macronodular adrenal hyperplasia (PBMAH) is characterized by bilateral benign adrenocortical lesions, which in some cases lead to Cushing syndrome (CS). Due to the low detection, non-specific, erased clinical picture and slow, long-term progression, it is difficult to assess the true prevalence of PBMAH. This also leads to fairly limited literature data. A detailed analysis of biochemical, imaging parameters, the clinical presentations, in particular, an assessment of the course of comorbidities (arterial hypertension (AH), diabetes (DM), osteoporosis), is necessary to develop an algorithm for managing patients with PBMAH.

AIM: Analysis of clinical and laboratory characteristics of patients with various forms of PBMAH.

MATERIALS AND METHODS: A single-center, retrospective, observational, cross-sectional study was carried out. This study included 110 patients with PBMAH who got referred to the National Research Center for Endocrinology in the period from 2013–2023. We carried out comparative and correlation analysis of hormonal (plasma cortisol concentrations after 1 mg dexamethasone (1-mg DST), urinary free cortisol (СКМ), ACTH), biochemical (glycated hemoglobin), radiological data (nodular tissue volume), course of comorbidities (metabolic syndrome, DM, AH, osteoporosis) in three groups of patients: with overt CS, mild autonomous cortisol excess (MACE) and comorbid diseases, and patients with PBMAH without hormonal activity.

RESULTS: Among 110 patients 79.1% were women, median age — 60 [51; 68]. The proportion of hormonally inactive forms of PBMAH was 37.3%, the overt CS and MACE was detected in 25.4 and 37.3% consequently. According to the hormonal ­examination data: the cortisol level during 1-mg DST was 173.8 nmol/l [86.0; 441.0], ACTH — 3.35 pg/ml [1.00; 8.00], СКМ — 445.5 [249.0; 900.0]. Statistically significant positive moderate correlations were found between the volume of nodular tissue and the level of cortisol after PDT1 (r=0.40, p<0.001), СКМ (r=0.29, p<0.004), as well as a negative moderate correlation between the volume and the level of ACTH (r=-0.40, p<0.001). When analyzing the prevalence and clinical severity of comorbid conditions, DM was diagnosed in 22 (53.7%), AH in 36 (87.8%), obesity and osteoporosis — 23 (56%) and 3 (7.3%) patients. There was no statistically significant difference in the prevalence of CS-associated diseases among the above groups (p=0.56).

CONCLUSION: PBMAH is a heterogeneous pathology with different clinical, hormonal, and imaging characteristics. A correlation was found between the volume of nodular tissue and the degree of hormonal activity of PBMAH. The obtained results emphasize the difficulty in determining clear indications for surgical treatment in the group of patients with MACE. The radicality of proposed surgical procedure should be weighed against its potential complications.
Psychometric properties of the Portuguese teacher-version of the Inventory of Callous-Unemotional Traits in Preschoolers
Authors: Figueiredo Patrícia , Ramião Eduarda , Moreira Diana , Barroso Ricardo , Barbosa Fernando
Published: July 2023

Several authors suggest that Callous-Unemotional (CU) traits may be useful in identifying adolescents who exhibit initial, severe, chronic, and aggressive conduct problems. The Inventory of Callous-Unemotional Traits (ICU) was developed to assess these traits, later associated with psychopathy, in children and adolescents. This study aims to analyze the psychometric properties of the Portuguese version of the teacher-report ICU for preschool-age children. The sample was collected in public schools and comprised the responses of 46 preschool teachers concerning 131 children (62 girls) between 3 and 6 years of age. Results indicate that a two-factor model revealed the best fit to our data, including a Callous and an Uncaring factor, resorting to 12 of the original 24 items. Additionally, the results of this study also provide evidence of measurement invariance across sex for the ICU, allowing us to compare mean levels of CU traits between boys and girls. The results of the present study showed that the Portuguese version of the ICU scale (teacher’s version) seems reliable and valid for evaluating CU traits in preschool children.
Einfluß wichtiger Bestimmungsfaktoren auf die Verteilung des Gemeindeanteils an der Einkommensteuer
Authors: Paula Herbert
Published: July 2023

Für eine ausgewogene Landesentwicklung ist die Finanzausstattung der Kommunen von ausschlaggebender Bedeutung. Zur Erfüllung ihrer Aufgaben sind die Gemeinden und Städte deshalb an den Einnahmen aus der Einkommensteuer beteiligt. Seit Anfang der 70er Jahre nehmen die Schlüsselzahlen der Mehrzahl der großen Städte, d.h. ihre Anteile am Gemeindeanteil an der Einkommensteuer, ab. In der politischen Diskussion werden die Anteilsverluste der Städte immer wieder mit Stadtflucht und Stadt-Umland-Wanderung in Zusammenhang gebracht. Die Schlüsselzahlen werden jedoch von einer ganzen Reihe von Faktoren beeinflußt.In diesem Beitrag wird der Versuch unternommen, für einen Zeitraum von sechs Jahren den Einfluß der wichtigsten Faktoren zu quantifizieren. Dabei ergibt sich, daß der Einfluß der Wanderung auf die Entwicklung der Schlüsselzahlen in diesem Zeitraum nicht nennenswert war. Entscheidend für die Entwicklung der Anteile der Städte und Gemeinden am Gemeindeanteil an der Einkommensteuer waren vor allem die Entwicklung des Anteils der Erwerbstätigen an der Wohnbevölkerung, also der Erwerbsquote, die Entwicklung des Einkommensniveaus und der Einkommensverteilung, insbesondere aber die Höhe der festgelegten Sockelbeträge.
Regionale Industrieentwicklung und Effekte aus dem Beitritt zur EG
Authors: Ridder Michael
Published: July 2023

Der Beitritt Griechenlands zur Europäischen Gemeinschaft hat auf der Wettbewerbsebene keine nachhaltig positiven Impulse für die regionale Industrieentwicklung zur Folge gehabt und somit auch nicht zum Abbau der erheblichen regionalen Disparitäten beigetragen. Obwohl der Einfluß der EG-Mitgliedschaft methodisch kaum von anderen, die allgemeine Wirtschaftsentwicklung bestimmenden Faktoren getrennt werden kann, läßt sich aufgrund empirisch gewonnener Daten behaupten, daß der nach dem Beitritt durch den Abbau tarifärer und nicht-tarifärer Handelshemmnisse erfolgte außenwirtschaftliche Konkurrenzdruck einen negativen Einfluß auf die regionale Wirtschaftsentwicklung hatte. Der Wegfall steuerlicher Bevorzugungen und die Übernahmen der gemeinsamen Agrarpolitik verstärken diesen Prozeß. Demgegenüber steht nur die günstige Entwicklung der Textil- und Bekleidungsindustrie. Die Orientierung auf diesen Sektor trägtjedoch zu einer ungleichen Integration Griechenlands in die internationale Arbeitsteilung bei und schafft Industriestrukturen, die langfristig international nicht wettbewerbsfähig sind.Die Region Thrakien steht somit am Vorabend der Realisierung des europäischen Binnenmarktes vor einer schwierigen Aufgabe, deren Bewältigung zukünftig einen massiven und koordinierten Einsatz wirtschafts- und strukturpolitischer Instrumentarien erfordert.
Temporal SIR-GN: Efficient and Effective Structural Representation Learning for Temporal Graphs
Authors: Layne Janet , Carpenter Justin , Serra Edoardo , Gullo Francesco
Published: July 2023

Node representation learning (NRL) generates numerical vectors (embeddings) for the nodes of a graph. Structural NRL specifically assigns similar node embeddings for those nodes that exhibit similar structural roles. This is in contrast with its proximity-based counterpart, wherein similarity between embeddings reflects spatial proximity among nodes. Structural NRL is useful for tasks such as node classification where nodes of the same class share structural roles, though there may exist a distant, or no path between them.

Athough structural NRL has been well-studied in static graphs, it has received limited attention in the temporal setting. Here, the embeddings are required to represent the evolution of nodes' structural roles over time. The existing methods are limited in terms of efficiency and effectiveness: they scale poorly to even moderate number of timestamps, or capture structural role only tangentially.

In this work, we present a novel unsupervised approach to structural representation learning for temporal graphs that overcomes these limitations. For each node, our approach clusters then aggregates the embedding of a node's neighbors for each timestamp, followed by a further temporal aggregation of all timestamps. This is repeated for (at most)
d
iterations, so as to acquire information from the
d
-hop neighborhood of a node. Our approach takes linear time in the number of overall temporal edges, and possesses important theoretical properties that formally demonstrate its effectiveness.

Extensive experiments on synthetic and real datasets show superior performance in node classification and regression tasks, and superior scalability of our approach to large graphs.
The FastLanes Compression Layout: Decoding > 100 Billion Integers per Second with Scalar Code
Authors: Afroozeh Azim , Boncz Peter
Published: July 2023

The open-source FastLanes project aims to improve big data formats, such as Parquet, ORC and columnar database formats, in multiple ways. In this paper, we significantly accelerate decoding of all common Light-Weight Compression (LWC) schemes: DICT, FOR, DELTA and RLE through better data-parallelism. We do so by re-designing the compression layout using two main ideas: (i) generalizing the
value interleaving
technique in the basic operation of bit-(un)packing by targeting a virtual 1024-bits SIMD register, (ii) reordering the tuples in all columns of a table in the same Unified Transposed Layout that puts tuple chunks in a common "04261537" order (explained in the paper); allowing for maximum independent work for all possible basic SIMD lane widths: 8, 16, 32, and 64 bits.

We address the software development, maintenance and future-proofness challenges of increasing hardware diversity, by defining a virtual 1024-bits instruction set that consists of simple operators supported by all SIMD dialects; and also, importantly, by scalar code. The interleaved and tuple-reordered layout actually makes scalar decoding faster, extracting more data-parallelism from today's wide-issue CPUs. Importantly, the scalar version can be fully auto-vectorized by modern compilers, eliminating technical debt in software caused by platform-specific SIMD intrinsics.

Micro-benchmarks on Intel, AMD, Apple and AWS CPUs show that FastLanes accelerates decoding by factors (decoding >40 values per CPU cycle). FastLanes can make queries faster, as compressing the data reduces bandwidth needs, while decoding is almost free.
Maximal D-Truss Search in Dynamic Directed Graphs
Authors: Tian Anxin , Zhou Alexander , Wang Yue , Chen Lei
Published: July 2023

Community search (CS) aims at personalized subgraph discovery which is the key to understanding the organisation of many real-world networks. CS in undirected networks has attracted significant attention from researchers, including many solutions for various cohesive subgraph structures and for different levels of dynamism with edge insertions and deletions, while they are much less considered for directed graphs. In this paper, we propose incremental solutions of CS based on the D-truss in dynamic directed graphs, where the D-truss is a cohesive subgraph structure defined based on two types of triangles in directed graphs. We first analyze the theoretical boundedness of D-truss given edge insertions and deletions, then we present basic single-update algorithms. To improve the efficiency, we propose an order-based D-Index, associated batch-update algorithms and a fully-dynamic query algorithm. Our extensive experiments on real-world graphs show that our proposed solution achieves a significant speedup compared to the SOTA solution, the scalability over updates is also verified.
Multimodal treatment for resectable neuroendocrine carcinoma of the cervix
Authors: Valenza Carmine , Spada Francesca , Multinu Francesco , Benini Lavinia , Borghesani Michele , Algeri Laura , Rubino Manila , Pisa Eleonora , Gervaso Lorenzo , Cella Chiara Alessandra , Carinelli Silvestro , Bruni Simone , Schivardi Gabriella , Curigliano Giuseppe , Zanagnolo Vanna , Aletti Giovanni , Colombo Nicoletta , Fazio Nicola
Published: July 2023

Non-metastatic neuroendocrine carcinoma of the cervix (NECC) is a rare and aggressive disease. Lacking prospective studies, the optimal multimodal treatment approach has not yet been clearly defined. This study aims to assess the clinical outcomes of patients with non-metastatic NECC treated with surgery and (neo)adjuvant chemotherapy, according to pathologic prognostic factors and multimodal treatments received. We retrospectively examined data from patients with non-metastatic NECC candidate to receive surgery and (neo)adjuvant chemotherapy and discussed at the European Institute of Oncology’s Multidisciplinary Neuroendocrine Tumor Board, between January 2003 and December 2021. Primary endpoints were event-free survival and overall survival. A total of 27 consecutive patients were evaluated, 15 with early stage NECC and 12 with a locally advanced NECC. Eight patients received neoadjuvant and 19 adjuvant platinum-based chemotherapy; 14 received adjuvant pelvic radiotherapy, half with external-beam radiation therapy alone, and half combined with brachytherapy. No patients progressed or relapsed during (neo)adjuvant chemotherapy. The median event-free survival was 21.1 months and the median overall survival was 33.0 months. Pathological FIGO stage ≥ IIB, adjuvant external-beam radiation therapy with or without brachytherapy emerged as significant and independent prognostic factors for event-free survival. Brachytherapy was also prognostic for overall survival. Non-metastatic NECC requires a multimodal approach, mainly weighted on the FIGO stage. The addition of brachytherapy should be considered, especially in patients with locally advanced disease. Because of the scarcity of robust clinical data, treatment strategy should be discussed in multidisciplinary board, taking into account patient.
ВПЛИВ СОЦІАЛЬНИХ МЕДІА НА ПОВЕДІНКУ СПОЖИВАЧІВ: АНАЛІЗ ТРЕНДІВ ТА ВИКЛИКІВ
Authors: Bilyk I.I. , Kolisnyk V.S.
Published: July 2023

Стаття розглядає важливі аспекти використання соціальних медіа в сучасному світі. Заснована на статистиці щодо кількості споживачів в соціальних мережах по всьому світу, стаття висвітлює основні причини, які спонукають користувачів до використання соціальних медіа. Незважаючи на те, що зі слів покоління Z та міленіалів, головною причиною їх присутності на таких платформах є проведення свого вільного часу, статистика говорить про інше – насправді соціальні мережі більшою мірою використовуються для дослідження товарів та послуг. Окрім цього, стаття аналізує тренди у сфері соціальних медіа на 2023 рік. Зокрема, розглядається впливовий маркетинг як один з головних трендів, що впливає на споживачів через використання впливових осіб, або так званих інфлюенсерів, у рекламних кампаніях. Існують дослідження, які показують, що їх рекомендації є одним із найважливіших факторів для споживачів при прийнятті рішення про покупку того чи іншого товару. Також зазначається роль штучного інтелекту в контексті соціальних медіа, адже завдяки ШІ можна здійснити аналіз великих обсягів даних про споживачів, включаючи їх профіль, демографічні дані, інтереси, поведінку в мережі, а також покращити персоналізацію контенту та реклами на основі цієї інформації. Ще один тренд, описаний у статті, є зростання популярності короткого відеоконтенту. Завдяки швидкому розвитку технологій та зростанню доступу до мобільного Інтернету, короткі відео стали надзвичайно популярними серед користувачів соціальних мереж. Окрім трендів, стаття вказує на п'ять викликів, з якими стикаються бренди при використанні соціальних медіа. Вони включають:  визначення найефективніших платформ для просування бренду, оскільки різні люди використовують різні соціальні мережі, залежно їх віку та потреб; створення привабливого контенту, яких може займати багато часу та ресурсів;  пошук ідей для нового контенту, адже соціальні платформи наразі вже переповнені різноманітними матеріалами; вимірювання рентабельності інвестицій, зважаючи на те, що цілі, які переслідують підприємства в соціальних мережах доволі абстрактні, досить складно оцінити успішність діяльності; створення контенту, який генерує лідів, за словами маркетологів є найбільшим їх викликом. Ця стаття є цінним джерелом інформації для маркетологів, бізнес-власників та фахівців з соціальних медіа, які бажають розуміти вплив соціальних медіа на поведінку споживачів, а також бути в курсі трендів та викликів в цій сфері на 2023 рік.
ЕКОНОМІЧНІ ТА КОНСТИТУЦІЙНО-ПРАВОВІ АСПЕКТИ ПУБЛІЧНОГО УПРАВЛІННЯ ТЕРИТОРІАЛЬНИМИ ГРОМАДАМИ В УМОВАХ ВОЄННОГО СТАНУ
Authors: Prypkhan I.I. , Shchur R.I.
Published: July 2023

В статті доведено, що ефективне функціонування територіальних громад можливе лише за певних передумов і умов, які в сукупності становлять основу місцевого самоврядування. Тобто під основами адміністративно-територіальної реформи початої в 2014 році розуміємо об’єктивно створені в суспільстві можливості та умови, сукупність яких утворила основу, на якій будується вся система розвитку місцевого самоврядування, в тому числі територіальні громади, як базова ланка такої системи.

Метою статті є необхідність поглиблення відповідних наукових розвідок з метою з’ясування економічних та конституційно-правових аспектів публічного управління територіальними громадами в умовах воєнного стану. Основними методами дослідження, які були використані у статті, є методи індукції, дедукції, абстрагування, аналізу та синтезу.

Основною особливістю проведення реформи децентралізації є новий підхід до розподілу та реалізації владних та інших управлінських функцій, який передбачає відхід від ієрархічної системи управління та організації влади, високий ступінь самостійності низки суб’єктів при скороченні обсягу контролю та нагляду за їх діяльністю. Відповідно до децентралізованої моделі організації влади вищий орган не може втручатися в діяльність нижчого органу, не може здійснювати по відношенню до нього адміністративну діяльність, не може віддавати накази чи розпорядження. Межі самоврядування органів, що виконують завдання за принципами децентралізації державного управління, визначаються заходами контролю.

В статті акцентовано увагу на те, що у місцевостях, де введено воєнний стан, з метою забезпечення дії Конституції і законів України встановлення та здійснення заходів правового режиму воєнного стану, оборони, громадської безпеки і порядку спільно з органами військової адміністрації, охорони прав, свобод і законних інтересів громадян, Президент України може створювати тимчасові державні органи – військові адміністрації.

Також було встановлено, що в умовах воєнного стану територіальні громади продемонстрували ефективну діяльність в плані взаємодії з органами державної влади, військовими організаціями, громадськими об’єднаннями в реалізації і захисту прав, свобод і забезпечення життєдіяльності населення громад. Це стало основою успішно проведеної адміністративно-територіальної реформи і становлення нових засад в публічному управлінні.
Study of cellulose paracrystallinity
Authors: Ioelovich Michael , Leykin Alex , Figovsky Oleg
Published: July 2023

The paracrystallinity of cellulose samples was studied with a complex of investigation methods including X-ray, NMR, sorption, calorimetry, and some others. It was found that the paracrystalline fraction of cellulose is located on the surface of crystallites as thin monomolecular layers having an average thickness of 0.4 nm. The paracrystalline surface layers have distorted and loose packing that is characterized by a high distortion parameter δp = 0.18, increased specific volume Vp=0.664 cm3/g, and decreased specific gravity ρp= 1.51 g/cm3. The paracrystalline fraction of the crystallite can be quantified by the parameter ( α ), which has an expressed influence on some properties of cellulose. Increasing of the α-value causes expansion of inter-plane distances in the C1 unit cell, as well as promotes mercerization and dissolution of cellulose.
Effects of alkaline pre-impregnation and pulping on Malaysia cultivated kenaf (Hibiscus cannabinus)
Authors: Ang Lin S. , Leh Cheu P. , Lee Chong C.
Published: July 2023

This study was carried out to identify an appropriate alkaline pulping condition for Malaysia cultivated kenaf (Hibiscus cannabinus L.). The chemical composition of the kenaf bast and core fibers, and also whole stalk with different growing time were examined prior to pulping attempts. The results of various soda-AQ pulping showed that the degree of carbohydrate degradation and delignification increased with the increase of active alkali and cooking temperature, but decreased with the increase of liquor to material (L:M) ratio. The most satisfactory properties of pulp and handsheets from bast could be attained by employing soda-AQ pulping with 19.4% active alkali, 0.10% AQ, and L:M ratio of 7:1 cooked for 2 hours at 160˚C. Besides, it was also found that a mild alkaline pre-impregnation prior pulping improved the pulp viscosity and handsheets’ strength properties, especially the tensile index and folding endurance effectively. Moreover, among the three alkaline pulping processes—kraft, kraft-AQ, and soda-AQ—the results of pulp and handsheet properties showed that the soda-AQ pulp was comparable or even slightly of higher quality than the kraft pulps. Between the unbeaten bast and core soda-AQ handsheets, the strength properties of the core were higher than the bast, as the thin-walled core fibers exhibited much better conformability than the thick-walled bast fibers.
Small wooden objects using eucalypt sawmill wood waste
Authors: Vieira Renato da Silva , Lima José Tarcísio , da Silva José Reinaldo Moreira , Hein Paulo Ricardo Gherardi , Baillères Henri , Baraúna Edy Eime Pereira
Published: July 2023

Forest industries look for multiple utilizations for their timber production. In Brazil, the genus Eucalyptus has a great potential for solid wood products; however, only a small amount of Eucalyptus is used as sawn timber. About 50% of the log volume ends up as waste during mechanical processing, resulting in serious economic and environmental problems. In most cases, such residue is discarded at random or used as fuel, and in this context the sustainable management of processing industrial waste is an urgent necessity. Parallel to this, Eucalyptus has not been employed for small wooden object (SWO) production. Hence, the aim of this work was to evaluate the performance of small wooden objects produced with Eucalyptus urophylla, E. camaldulensis, and E. grandis waste from sawmilling. Brazilian craftsmen manufactured SWOs with Eucalyptus, and these crafted objects were presented at exhibits and trade fairs for assessment. The proposed small wooden objects made with Eucalyptus residues exhibited satisfactory performance and achieved excellent acceptance by the visitors. This work gave evidence that the use of sawmill waste as raw material for small wooden object manufacture has potential to generate income for economically underprivileged communities near to a plantation.
Effect of adhesive type on the bending moment capacity of miter frame corner joints
Authors: Altun Suat , Burdurlu Erol , Kılıç Murat
Published: July 2023

The bending moment capacity was studied under the diagonal tensile and compression loadings of miter corner joints with dovetail fitting in frames made with medium density fiberboard (MDF). The influence of the type of adhesive in the joints with dovetail fitting on bending moment capacity under diagonal tensile and compression loading were considered, and the joints without adhesive were compared. A total of 80 each miter frame corner joint specimens with dovetail fitting were made. Polyvinyl acetate (PVAc), polyurethane (PU), and cyanoacrylate (CA) adhesives were used, and 20 specimens were prepared without adhesive (WA) with dovetail fitting. MDF was used as a frame material, as in normal practice. The specimens were subjected to diagonal tensile and compression loadings in accordance with ASTM-D 143-94. The data were analyzed statistically. The highest bending moment capacity under diagonal tensile loading (46.09 Nm) was obtained in the specimens bonded with CA adhesive and the highest bending moment capacity under diagonal compression loading (72.04 Nm) was obtained in the specimens glued with PVAc adhesive. Other than this, since there is no difference between these and the unbonded joints, the PU adhesive was not effective in increasing the bending moment capacity under diagonal tensile loading, and the PU and CA adhesives were not effective in increasing the bending moment capacity under diagonal compression loadings.
Delignification of sugarcane bagasse with alkali and peracetic acid and characterization of the pulp
Authors: Zhao Xuebing , van der Heide Evert , Zhang Ting , Liu Dehua
Published: July 2023

Sugarcane bagasse was delignified with alkali and peracetic acid in a two-stage process to obtain pulps with high yield and low kappa number. The experimental results indicated that alkali pretreatment prior to peracetic acid (PAA) delignification could significantly reduce PAA loading by partially removing lignin and swelling the fibers. An optimum condition for the two-stage delignification was obtained for pulping of sugarcane bagasse. The pulps were further characterized by chemical composition analysis, strength property tests, Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD), and Thermal Gravimetric Analysis (TGA). It was found that the alkali-PAA process could be conducted under milder conditions with resulting higher pulping selectivity, higher degree of polymerization (DP), and superior mechanical properties of pulps, compared to the kraft pulping process. Both kraft pulps and alkali-PAA pulp had similar FTIR spectra, XRD spectra, and TGA (DTG) curves. However, further analysis indicated that the alkali-PAA pulp had higher infrared crystallization index and cellulose crystallinity.
Utilization of bagasse fiber for preparation of biodegradable flame retarding composites (BFRCS)
Authors: Han Wenjia , Chen Kefu , Yang Ren-Dang , Yang Fei , Zhao Chuanshan , Gao Wenhua
Published: July 2023

Bagasse is a renewable resource characterized by its low cost and environmental friendliness. In this work a novel technological process was proposed to make flame retarding composites (BFRCs) by using bagasse fiber. The bagasse was disintegrated by twisting it up and applying high consistency refining, and then it was used to prepare BFRCs via hot pressure. Chemical groups and thermal properties of bagasse fiber were studied through the use of FTIR spectroscopy, a universal mechanical testing machine, and TGA, while properties of BFRCs were also analyzed by SEM, and the surface water resistance and burning characteristics were measured. Results showed the pyrolysis temperature of bagasse fibers to be about 273oC. Chemical groups were not changed, while the content of groups was reduced a little during the manufacturing process. The BFRCs showed good performance for water resistance, and the optimum value was 1.7 g. They also had good flame retardant performance. The index of flame spread was 13.6 and the smoke index was 108, which reaches Class A by the ASTM E84-08 Standard.
Flexural behaviour of areca fibers composites
Authors: Chikkol Venkateshappa Srinivasa , Bennehalli Basavaraju , Gadde Kenchappa Mownesh , Ranganagowda Raghu Patel Gowda
Published: July 2023

A study has been carried out to evaluate physical and flexural properties of composites made by areca fibers with a randomly distributed orientation of fibers. The extracted areca fibers from the areca husk were alkali treated with potassium hydroxide (KOH) to get better interfacial bonding between fiber and matrix. Then composites were developed by means of a compression molding technique with varying process parameters, such as fiber condition (untreated and alkali treated), and fiber loading percentages (50% and 60% by weight). The developed areca fiber reinforced composites were then characterized by physical and flexural tests. The results show that flexural strength increases with increase in the fiber loading percentage. Compared to untreated fiber, significant change in flexural strength has been observed for treated areca fiber reinforcement.
Sodium titanate nanobelt as a microparticle to induce clay flocculation with CPAM
Authors: Zhang Xuyan , Liu Wenxia
Published: July 2023

Sodium titanate nanobelt was synthesized by treating titanium dioxide hydrothermally in concentrated sodium hydroxide solution. The product was characterized by SEM analysis and zeta potential measurement. It served as a microparticle to constitute a microparticle retention system with cationic polyacrylamide (CPAM), while the microparticle system was employed to induce the flocculation of kaolin clay. The flocculation behavior of kaolin clay in such a system was investigated by using a photometric dispersion analyzer connected with a dynamic drainage jar. It was found that the sodium titanate nanobelt carried negative charges and had a lower zeta potential at higher pH. It gave a large synergistic flocculation effect with CPAM at a very low dosage, and showed higher flocculation effect with CPAM under neutral and weak alkaline conditions. A suitably high shear level was helpful for the re-flocculation of clay by sodium titanate nanobelt. The clay flocculation induced by CPAM/titanate nanobelt system demonstrated high shear resistance and also generated dense flocs.
Validation of the diagnostics algorithm to monitor coagulation parameters in pregnant women
Authors:   Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, Korolova D. S. , Pavlenko A. O. ,   Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv;, Altorjay A. ,   Albert Szent-Györgyi Medical School, University of Szeged, Hungary;, Zhuk S. I. ,   P. L. Shupyk National Medical Academy of Postgraduate Education, Kyiv, Ukraine;, Us I. V. ,   P. L. Shupyk National Medical Academy of Postgraduate Education, Kyiv, Ukraine;, Tsaryk Y. ,   Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv;, Suranyi A. ,   Albert Szent-Györgyi Medical School, University of Szeged, Hungary;, Chernyshenko V. O. ,   Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv;
Published: July 2023

Thrombotic events are among the most dangerous complications of pregnancy. Therefore, selection of appropriate tests and standardization of techniques used for accurate diagnostics of blood coagulation system state is of great importance. In this present study, we monitored several molecular markers of the dangers of intravascular thrombus formation and estimated the platelet function in pregnant women during­ gestation. We performed independent measurements using the same methodology for different cohorts of patients recruited in Kyiv (Ukraine) and in Szeged (Hungary). D-dimer and soluble fibrin were measured using ELISA. Protein C (PC) level was estimated using chromogenic substrate assay. Fibrinogen concentration was measured by spectrophotometry using thrombin-like enzyme. Platelet function was estimated by aggregometry­. Statistical data analysis was performed using the Kruskal-Wallis test. Statistically significant increases of fibrinogen concentration from first to third gestational trimester was shown for both studied cohorts of patients (5-6 mg/ml at third trimester on average). Applied methods allowed us to detect the same tendencies of decreases in PC level as well as the appearance of moderate amounts of D-dimer (up to 300 ng/ml) and SF (up to 10-15 ug/ml). Platelet function was increased on the first trimester of pregnancy and decreased during­ following trimesters slightly. Results indicated the changes in the blood coagulation system of pregnant women during gestation with the same effectiveness independently of the selected cohorts, time and place of measurements. The application of the proposed diagnostics algorithm may allow estimating the risk of thrombotic complications during pregnancy. Keywords: D-dimer, fibrinogen, platelets, pregnancy, soluble fibrin, thrombosis
Research for forecasting the effect of various meteorological-dynamic conditions on the possible spreading of Cs-137 radioactive substances in case a level 7 incident occurs from Fengcheng nuclear power plant (China)
Authors: Nguyen Minh Hai , Vu Duy Vinh , Nguyen Trong Ngo , Tran Quang Thien
Published: July 2023

Because its location is quite close to the Vietnamese border, the future operation of the Fengcheng (Phong Thanh) nuclear power plant (NPP) can raise many concerns about the impact on the marine environment in case a serious incident occurs. Based on the Delft3D modeling toolkit, calculation scenarios to simulate the spreading of Cs-137 radioactive emission when a level 7 incident occurs at Phong Thanh NPP have been set up according to different dynamic/meteorological conditions presented at the time of incidents (during the northeast monsoon, transitional monsoon, or southwest monsoon) to assess/predict the possibility of radioactive emission and to spread, and their affecting the waters of Vietnam. The simulation results show that when a level 7 incident occurs from Phong Thanh NPP, the area of influence might be the entire East Sea after 3–6 months. The Gulf of Tonkin area would be contaminated with high radiation levels (300–350 Bq/m3) after about one month. The radiation would then gradually decrease to less than 150Bq/m3 after one year and below 30Bq/m3 after two years. The impacts of various dynamical and meteorological conditions on the ability to spread and disperse radioactive substances when an incident occurs are only evident in the early stages (up to 3 months after the incident). After this time, the contaminated area would cover almost the entire coastal strip of Vietnam due to a large amount of radiation, and the effects of different dynamic/meteorological conditions would be irregular.
Effects of stocking density and diets on survival and growth of lavi-cultured slipper lobster (\(\textit{Thenus orientalis}\) Lund, 1793)
Authors: Nguyen Van Manh , Nguyen Quoc Thang , Dao Mong Uyen , Truong Quoc Thai
Published: July 2023

A study on the effect of different densities and feed when rearing phyllosoma larvae of slipper lobster (Thenus Orientalis) was conducted at Nha Trang Marine Research and Development Center, Institute of Aquaculture Research No. 3 from January to April 2020 to evaluate the effect of density and types of food on survival, growth (phase transition rate, phyllosoma larval size: CL and CW). In general, the impact of feed on phyllosoma larvae was recorded in such parameters as survival rate, stage transition rate, and larval size (CL and CW). The results showed that the survival rate of phyllosoma larvae depends on the density of rearing phyllosoma larvae, and the appropriate density when breeding is 15 fish/L. However, density does not affect the growth of phyllosoma larvae. Besides, the best feed formula for rearing phyllosoma larvae in this study was umbrella Artemia + (white clam) fresh meat for the first seven days, and newly hatched Artemia + white clam meat continued to be fed from day one, 8th to 24th day.
A novel HHO-RSCDT ensemble learning approach for forest fire danger mapping using GIS
Authors: Tran Xuan Truong , Doan Thi Nam Phuong , Le Thanh Nghi , Viet-Ha Nhu , Tien Bui Dieu
Published: July 2023

Accurate prediction models for spatial prediction of forest fire danger play a vital role in predicting forest fires, which can help prevent and mitigate the detrimental effects of such disasters. This research aims to develop a new ensemble learning model, HHO-RSCDT, capable of accurately predicting spatial patterns of forest fire danger. The HHO-RSCDT method combines three distinct components, namely Random Subspace (RS), Credal Decision Tree (CDT), and Harris Hawks Optimizer (HHO). Herein, RS generates a series of subspace datasets, which are subsequently utilized to produce individual CDT classifiers. Then, HHO optimizes the ensemble model, enabling the model to achieve higher predictive performance. The model was trained and validated using a Phu Yen province, Vietnam dataset. The dataset includes 306 forest fire locations and ten influencing factors from the study province. The results showed the capability of the HHO-RSCDT model in predicting forest fire danger, with an accuracy rate of 83.7%, a kappa statistic of 0.674, and an AUC of 0.911. A comparison between the HHO-RSCDT model and two state-of-the-art machine learning methods, i.e., support vector machine (SVM) and random forest (RF), indicated that the HHO-RSCDT model could perform better, making it a valuable tool for modeling forest fire danger. The forest fire danger map produced using this novel model could be a new tool for local authorities in the Phu Yen province, assisting them in managing and protecting the forest ecosystem. By providing a detailed overview of the are as most susceptible to forest fires, the map can help authorities to develop targeted and effective forest management strategies, such as focusing on areas with high fuel loads or implementing controlled burning programs.
The Elite of Sýrnesgarðr: On the Social Stratification of the Population of the Gnyozdovo Archaeological Complex, 10th — Early 11th Centuries
Authors:   Institute of World History, Russian Academy of Sciences, Shchavelev Aleksei S. , Fetisov Aleksandr A. ,   State Museum of Oriental Art
Published: July 2023

This paper analyses the socio-historical topography, the dynamics of urbanization transformations, and social stratification of the population of the early medieval metropolis in the Upper Dnieper area of the tenth — early eleventh centuries known as Sэrnesgarрr, nowadays the Gnyozdovo Archaeological Complex. It was one of the largest political, trade, and craft centres of the Viking Age within the spread of Old Russian archaeological culture. The high degree of archaeological knowledge of this site makes it possible to try and find a solution to the difficult problem of reconstructing the social hierarchy of its urban community referring to the data known to the scholarly community. The society of *Sýrnesgarðr was a developed ranked or even early stratified society with a pronounced three-level hierarchy. The upper stratum used special labour-intensive burial rites with rich grave goods accompanying the deceased; the middle stratum marked its burials with weapons; and the majority of the ordinary population practised various forms of “standard” burials without any exclusive features. The analysis of the chronology of the burials of the elite reveals two generations with different cultural attitudes, economic practices, and behavioural patterns. The first generation of the first half of the tenth century used burial rites in “great mounds” and/or in boats (or “rooks”). The second generation of the middle to second half of the tenth century used burial rites in “wooden chambers”. The change of the “ruling class” of “great mounds and boats” to a new privileged group of “wooden chambers” took place around the 940s–960s, either because the city was conquered by the troops of the Rurikid polity, or, more likely, because of an internal conflict between the two privileged groups.