bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparative testing of two alternating current methods for determining wood moisture content in kiln conditions
Authors: Tamme Hannes , Kask Regino , Muiste Peeter , Tamme Valdek 
Published: January 2022

Abstract
Research into the possibility of applying the electric impedance spectrometry (EIS) method and the dielectric capacitance method (DECM) simultaneously above fibre saturation point (FSP) and in harsh kiln conditions has been relatively scarce. In the framework of this research, tests were carried out on the operational reliability of the measuring capacitor (MEC) prototype used for calibrating the DECM in the harsh internal climate (50°C and 98% RH) of the kiln. Condensation of water vapor on MEC plates, leakage of MEC insulators and the emergence of static electric charges on MEC plates were studied. Quantitative ranges were found for MEC performance-disrupting effects on the parasitic capacities induced by each effect. The DECM was found to be less reliable than the EIS method for application in harsh kiln conditions. Secondly, under the same test conditions and for the same wood species (birch), the possibilities of the DECM method and the EIS method were comparatively modeled with the predetermined Rozema quality criterion of ±1.75% MC for predicting the moisture content (MC) of birch wood above FSP. It was found that, under the same test conditions, the DECM method proved more accurate than the EIS method for predicting birch wood MC above FSP. Based on the tests, it was concluded that DECM can be used in practice by applying a non-destructive method to reliably determine the average moisture content of a wood batch immediately prior to commencing the wood-drying process.
Changes during twelve years in three mature hemiboreal stands growing in a radiation model intercomparison test site, Järvselja, Estonia
Authors: Lang Mait , Kuusk Andres , Kaha Mihkel , Pisek Jan , George Jan-Peter , Kiviste Andres , Laarmann Diana , Türk Kristina , Arumäe Tauri 
Published: January 2022

Abstract
In 2007, three mature hemi-boreal stands were selected from Järvselja forest district, South-East Estonia to establish one-hectare-large test plots for the international inter-comparison experiment of radiation models (RAMI). All trees with a stem diameter at breast height greater than 4 cm were mapped and measured in the field. In summer 2019, the forests were inventoried again. Here we present a summary of changes that occurred in the forest structure – mainly growth and mortality. In the birch stand basal area G has increased from 23.3 m2 ha-1 to 28.2 m2 ha-1 in the upper layer and the number of trees N has decreased from 654 to 565 ha-1. In the upper layer of spruce stand G has increased from 30.9 m2 ha-1 to 35.4 m2 ha-1 and N has decreased from 774 to 724 ha-1 and N substantially decreased in the lower layers from 912 to 577 ha-1. In the pine stand G has increased from 28.3 m2 ha-1 to 29.1 m2 ha-1 and N decreased from 1116 to 971 ha-1. The three test stands can be used now for validating remote sensing data-based estimates of forest inventory variables at single tree level.
The Role of Morphometric Characteristics of Anterior Maxilla in Planning the Interventions Accompanied by Orthodontic Teeth Movement – An Overview
Authors: Arnaut Aleksandra , Colic Djurdjina 
Published: January 2022

Abstract
The anterior maxilla or premaxilla is part of the upper jaw and the most significant content of this region, from the aspect of orthodontic therapy, are the incisor teeth. The frequency of complications during orthodontic movement of the upper incisors refers to a more detailed evaluation of the anatomical structures of the premaxilla. The aim of this study was to investigate morphological and morphometric characteristics of the anterior maxilla by cone beam computed tomography, which could be of interest for planning orthodontic teeth movement. By reviewing the available literature, we compared the values of the alveolar bone height, the distance between the alveolar crest and enamel – cement boundary, total alveolar bone width, the thickness of the buccal, and palatal plate, nasopalatine canal, and accessory canals of the anterior maxilla. The results of our study show changes in the labial and palatal aspects of the alveolar bone height during orthodontic interventions. Different results of the alveolar bone width are in correlation with gender, age, and type of orthodontic tooth movement. Distance between the nasopalatine canal and maxillary central incisors was estimated at the value from 4 to 6 mm, which is below the recommended value for maximum incisal retraction by Proffit. Research results show variations in shape, length, and diameter of the nasopalatine canal, which indicates individual varieties detected on cone beam computed tomography. Other anatomical structures and measures show an insignificant correlation with orthodontic teeth movement. According to the contradictory results of the available articles, it is required to achieve an individual approach to orthodontic interventions in the area of the anterior maxilla.
Explicit Non Algebraic Limit Cycle for a Discontinuous Piecewise Differential Systems Separated by One Straight Line and Formed by Linear Center and Linear System Without Equilibria
Authors: Berbache Aziza 
Published: January 2022

Abstract
In this paper, we deal with the discontinuous piecewise differential linear systems formed by two differential systems separated by a straight line when one of these two differential systems is a linear without equilibria and the other is a linear center. We are going to show that the maximum number of crossing limit cycles is one, and if exists, it is non algebraic and analytically given.
Controllability of Nonlocal Impulsive Functional Differential Equations with Measure of Noncompactness in Banach Spaces
Authors: Chalishajar Dlmplekumar N. , Karthikeyan Kulandhivel , Tamizharasan Dhachinamoorthi 
Published: January 2022

Abstract
This paper is concerned with the controllability of impulsive differential equations with nonlocal conditions. First, we establish a property of measure of noncompactness in the space of piecewise continuous functions. Then, by using this property and Darbo-Sadovskii’s Fixed Point Theorem, we get the controllability of nonlocal impulsive differential equations under compactness conditions, Lipschitz conditions and mixed-type conditions, respectively.
A Quintic Spline Collocation Method for Solving Time-Dependent Convection-Diffusion Problems
Authors: Hajaji Abdelmajid El , Serghini Abdelhafid , Melliani Said , Ghordaf Jalila El , Hilal Khalid 
Published: January 2022

Abstract
In this paper, we develop a new numerical algorithm for solving a time dependent convection-diffusion equation with Dirichlet’s type boundary conditions. The method comprises the horizontal method of lines for time integration and (θ-method, θ ∈ [1/2, 1] (θ = 1 corresponds to the backward Euler method and θ = 1/2 corresponds to the Crank-Nicolson method) to discretize in temporal direction and the quintic spline collocation method. The convergence analysis of proposed method is discussed in detail, and it justified that the approximate solution converges to the exact solution of orders O(Δt + h
3) for the backward Euler method and O(Δt
2 + h
3) for the Crank-Nicolson method, where Δt and h are mesh sizes in the time and space directions, respectively. It is also shown that the proposed method is unconditionally stable. This scheme is applied on some test examples, the numerical results illustrate the efficiency of the method and confirm the theoretical behaviour of the rates of convergence. Results shown by this method are in good agreement with the known exact solutions. The produced results are also more accurate than some available results given in the literature.
Finite Volume Schemes for the Affine Morphological Scale Space (Amss) Model
Authors: Handlovičová Angela , Mikula Karol 
Published: January 2022

Abstract
Finite volume (FV) numerical schemes for the approximation of Affine Morphological Scale Space (AMSS) model are proposed. For the scheme parameter θ, 0 ≤ θ ≤ 1 the numerical schemes of Crank-Nicolson type were derived. The explicit (θ = 0), semi-implicit, fully-implicit (θ = 1) and Crank-Nicolson (θ = 0.5) schemes were studied. Stability estimates for explicit and implicit schemes were derived. On several numerical experiments the properties and comparison of the numerical schemes are presented.
What was the River Ister in the Time of Strabo? A Mathematical Approach
Authors: Mikula Karol , Ambroz Martin , Mokošová Renáta 
Published: January 2022

Abstract
We introduce a novel method for map registration and apply it to transformation of the river Ister from Strabo’s map of the World to the current map in the World Geodetic System. This transformation leads to the surprising but convincing result that Strabo’s river Ister best coincides with the nowadays Tauernbach-Isel-Drava-Danube course and not with the Danube river what is commonly assumed. Such a result is supported by carefully designed mathematical measurements and it resolves all related controversies otherwise appearing in understanding and translation of Strabo’s original text. Based on this result, we also show that Strabo’s Suevi in the Hercynian Forest corresponds to the Slavic people in the Carpathian-Alpine basin and thus that the compact Slavic settlement was there already at the beginning of the first millennium AD.
Persepsi karyawan terhadap implementasi konsep tri hita karana di sudamala suites & villas sanur, bali
Authors: Kusuma I Wayan Adhitya , Ariana I Nyoman Jamin , Putra Agus Muriawan 
Published: January 2022

This study aims to determine employee perceptions of the implementation of the concept of Tri Hita Karana at Sudamala Suites & Villas Sanur. This research is descriptive qualitative & quantitative research. The sample in this research is using Saturation Sampling determination technique. The population referred to in this study are all employees (staff) Sudamala Suites & Villas who dujadikan the respondents a number of 70 people. Data collection techniques were conducted by observation, interview, questionnaires distribution, literature study and documentation.
The result of the research shows that employee perception towards the implementation of Tri Hita Karana concept in Sudamala Suites & Villas can be seen that from the three variables Tri Hita Karana has been categorized as well implemented with the total average score of 3.01, for Parhyangan get the average score 2,99, Pawongan variable got average score of 3.08, and variable of Palemahan get average score 2,96, this is because Sudamala Suites & Villas Sanur have implemented Tri Hita Karana concept but not yet fully. The result of this perception is in accordance with the opinion of the informant, Mr. Komang Satria Nugraha L. Putra as Asst. Human Resources Manager that the implementation of the Tri Hita Karana concept at Sudamala Suites & Villas has not been fully implemented due to several indicators of the unfinished Tri Hita Karana concept that caused Sudamala Suites & Villas Sanur to date have not been able to implement the concept of Tri Hita Karana.
The suggestions that can be submitted based on the results of the discussion is to improve the application of the concept of Tri Hita Karana by joining the Tri Hita Karana Awards & Accreditation competition, establishing a special Team as well as adding to the diversity of flora in Sudamala Suites & Villas so that the existing plant species do not look monotonous and look more beautiful and beautiful.
Rosyjskie źródła do dziejów polskiego ruchu komunistycznego w międzywojennym dwudziestoleciu
Authors: Wołos Mariusz 
Published: January 2022

The Russian State Archive of Socio-Political History in Moscow is home to the largest collection of documents on the history of the Polish communist movement in the interwar period. Among other files, the documents of the Communist Party of Poland and others related to Polish communists in the Comintern are stored there. is rich collection is currently not very popular among historians, although it is necessary for research into the history of the Polish communist movement. In Russian editions of archival sources or published correspondence of Soviet leaders, subjects related to the activities of Polish communists are poorly represented. There is no edition of sources on the Comintern’s attitude toward Poland in the years 1919-1943. In contemporary Russia, a small number of historians deal with the subject of the Polish communistmovement. It is not popular among Polish researchers, either.
Rewolucyjne partie chłopskie w II RP w świetle historiografii
Authors: Suławka Adam Radosław 
Published: January 2022

The aim of this article is to summarise the current state of academic research regarding revolutionary peasant parties in the Second Polish Republic: the Independent Peasant Party (IPP), Union of Peasant Left “Self-Help” and Belarussian Peasant and Workers “Hromada” that operated in the north-eastern borderlands. These political formations, whose target group was peasants, were crypto-communist. Although officially independent, they were actually agencies
of the Communist Party of Poland (CPP) and Communist Party of Western Belarus, which were in turn branches of Soviet intelligence in Poland. These groups aroused greatest interest among researchers prior to 1989 (during the existence of the communist block) due to the fact that Polish historians, members of the ruling Polish United Workers’ Party at the time, monopolised scientific research. Members of the PUWP’s satellite United People’s Party also had the
opportunity to work on this issue, but their influence was much weaker. Articles regarding the Hromada were also available; however, much more detailed and important were those written in the Belarussian SSR. Practically in all cases those scientific papers were written in line with the communist ideology that praised the work of these parties. Still, thanks to research in Polish and Soviet archives, we can obtain valuable information about them and their members. After the decline of the communist block the topic has received much less attention from researchers both in Poland and Belarus, except for those who had already worked on it during the communist era and published a few fragmentary articles. As a result, the issue discussed in this article is still waiting for comprehensive and honest scholarship.
Przegląd źródeł archiwalnych do dziejów Komunistycznej Partii Polski w województwie pomorskim w latach 1920–1938
Authors: Czerwiński Daniel 
Published: January 2022

Files collected in archives play an extremely important role in historical studies; without them, research would be virtually impossible. Documents on the history of the communist movement in the Pomeranian Voivodeship in the years 1920–1938 are extremely dispersed, which is related to the administrative changes that affected these areas during the existence of the Second Polish Republic, among other things. This article discusses the Polish archives that collect documents on the history of the communist movement along with a brief overview of the contents of archival
groups and the substantial value of these documents.
Green Synthesis of Nickel Nanoparticles and their Application of Removal of Aliphatic Hydrocarbons from Crude Oil
Authors: Sadaa Ahmed Makki , Al Abdullah Zainab Taha 
Published: January 2022

Nickel nanoparticles (Ni-nanoparticles) were incorporated as an antecedent utilizing nickel acetate and as a reducing agent, extraction plantApiumgraveolens. The reason fo choosing this plant over many other is because it is easily accessible, carries many antioxidants, non-toxic, and there are no dangerous residues and stabilizing agent at 60℃ under stirrer. The progress of the reaction was monitored by observing a change in color of the obtained solution. The UV–Vis utilized to screen the development of Ni-nanoparticles inside a surface plasmon band (SPB) at 275 nm gives a phantom mark appropriate to the arrangement of nanoparticles. Examining the electron microscope (SEM) photos showed the Ni-nanoparticles to be of cubic shape with sizes in te range of (6-45 nm). GC-MS s spectra were utilized to show the debasement when the expansion of nickel nanoparticles. The most noteworthy accessibility of aliphatic mixes at the hour of (1.3, 1.46, 1.62, 12.04) min. In the interim after the expansion of nanoparticle, the outcomes show a high bounty at (1.29, 2.1) min. The importance of this research lies in the possibility of breaking large organic compounds into simpler compounds, as the presence of large organic compounds with high molecular weights leads to pollution of sea and ocean waters when poured into it as a result of sea transport.
Sustentabilidad, agua y salud: Incidencia y prevalencia epidemiológica del COVID-19 en asociación con la crisis hídrica en el Estado de Morelos, México
Authors: Luna Nemecio Josmanuel , Blancas Reza Miguel Ángel , Davides Oliveira Ricardo 
Published: January 2022

En el estudio se presentó la asociación territorial entre la crisis hídrica del estado de Morelos y el perfil epidemiológico del COVID-19 en la entidad. El propósito que se estableció como finalidad de la investigación fue conocer cómo la situación crítica del metabolismo hídrico en Morelos ha devenido en un colapso de los recursos hídricos subterráneos, lo cual es tomado como un factor objetivo que se relaciona, mediante los procesos de urbanización de la entidad, con los casos confirmados de COVID-19 registrados entre el 19 de marzo y el 11 de junio del 2020. La metodología se basó en una revisión documental, la elaboración de un balance hídrico geoespacial, el cálculo de la prevalencia e incidencia epidemiológica del COVID-19 en Morelos, y el uso de sistemas de informacion geografíca para el procesamiento cartográfico de la información. Los resultados obtenidos mostraron un abordaje teórico conceptual de la crisis hídrica y de producción socioterritorial de enfermedades desde la crítica de la economía política y la geografía crítica marxista; además, se presentaron los datos sobre la crisis hídrica que se configura en los acuíferos del estado de Morelos, así como el perfíl epidemiológico del COVID-19 en la entidad, lo cual permitió concluir que la reconfiguración urbana e industrial de Morelos es el factor territorial mediante el cual se relaciona la crisis hídrica y el número de casos de contagio del COVID-19.
My experience as a long COVID patient: “Long COVID,” a hidden pandemic and the possible solution
Authors: Gowda Vinaya 
Published: January 2022

Objectives:
To create awareness about long COVID through personal experience as it is less understood, given the nature of the disease and to suggest possible solution until the definitive measures.

Materials and Methods:
I self-analyzed my symptoms and tried treatment methods over 5 months of long COVID phase which apparently started after COVID vaccination.

Results:
I noticed subtle improvement in overall symptoms and significant change in neuropsychiatric symptoms such as anxiety, depression, paresthesia, and headache with antihistamines albeit temporarily.

Conclusion:
Antihistamines may give temporary relief from the long COVID symptoms.
Mikrozonasi Berdasarkan Data Mikrotremor dan Kecepatan Gelombang Geser di Kotamadya Yogyakarta
Authors: Purnama Aditya Yoga , Nurcahya Budi Eka , Nurhanafi Kholis , Perdhana Radhitya 
Published: January 2022

Gempabumi Yogyakarta dengan magnitude 6,3 Skala Richter yang terjadi pada tahun 2006 menyebabkan kerusakan bangunan di Kota Yogyakarta dan sekitarnya. Kerusakan banyak terjadi di daerah sedimen Yogyakarta daripada di perbukitan Wonosari yang memiliki lapisan lebih keras. Kerusakan ini mengindikasikan adanya kontrol efek tapak lokal. Penelitian ini bertujuan untuk memetakan daerah rawan kerusakan gempabumi di Kotamadya Yogyakarta berdasarkan analisis kurva Horizontal-to-Vertical Spectral Ratio (HVSR) dan mengetahui litologi bawah permukaan berdasarkan ground profiles kecepatan gelombang geser (Vs) dengan metode inversi kurva HVSR. Penelitian dilakukan di Kotamadya Yogyakarta dan sekitarnya yang dibatasi pada koordinat 7o45’58.09’’- 7o50’59.01’’ Lintang Selatan dan 110o19’7.87’’-110o24’35.43’’ Bujur Timur. Data mikrotremor sebanyak 280 diolah menggunakan metode HVSR. Proses inversi HVSR juga dilakukan untuk memperkirakan model perlapisan tanah. Hasil dari penelitian menunjukkan bahwa nilai frekuensi dominan (fo) di Kotamadya Yogyakarta dan sekitarnya berkisar antara 1,1-5,8 Hz, nilai amplifikasi (A0) berkisar antara 1-21, nilai Vs30 berkisar antara 210-376 m/s. Hasil inversi menunjukkan bahwa ketebalan lapisan sedimen di Kotamadya Yogyakarta dan sekitarnya berkisar antara 104 meter hingga 262 meter. Persebaran daerah lebih rentan secara seismik terdapat pada nilai amplifikasi tinggi sebesar 9-21 dengan rentang frekuensi 1,1-2,3 Hz yaitu di Kecamatan Sewon, Banguntapan dan Umbulharjo. Sebaran lokasi kejadian likuifaksi bersesuaian dengan nilai kecepatan gelombang geser rendah dengan rentang 210-262 m/s dengan jenis tanah sedang (SD) yaitu di Kecamatan Sewon, Banguntapan dan Umbulharjo.
Identifikasi Jenis Mikroplastik dan Logam Berat di Air Sungai Kapuas Kota Pontianak
Authors: Sugandi Didiek , Agustiawan Deri , Febriyanti Shafira Viana , Yudi Yulius , Wahyuni Nelly 
Published: January 2022

Sungai Kapuas berperan sebagai sarana transportasi, sumber air baku untuk PDAM, tempat rekreasi, hingga menjadi tempat pembuangan sampah dan limbah bagi masyarakat Pontianak, Kalimantan Barat. Sampah plastik merupakan sampah yang paling banyak dihasilkan karena tingginya aktivitas masyarakat. Sampah plastik yang terpapar sinar ultraviolet atau proses lainnya dapat terdekomposisi menjadi mikroplastik (5 mm - 1 µm) yang dapat berdampak negatif bagi ekosistem perairan bahkan manusia. Penelitian ini bertujuan mengidentifikasi jenis polimer dan logam berat pada mikroplastik yang ada di air Sungai Kapuas. Pengambilan sampel pada 6 titik lokasi didasarkan pada outlet pasar, pelabuhan, penyebrangan feri dan industri. Identifikasi kelimpahan, bentuk dan warna dilakukan dengan menggunakan mikroskop, karakterisasi jenis polimer dengan Fourier Transform Infra Red (FTIR) dan logam berat dengan Scanning Electron Microscope-Energy Dispersive X-Ray (SEM-EDX). Hasil penelitian menunjukkan kelimpahan mikroplastik di Sungai Kapuas sebesar 943,3 partikel/L dengan persentase terbesar berbentuk filamen (33%) dan fragmen (33%). Karakterisasi gugus fungsi dengan FTIR menunjukkan adanya plastik jenis polietilena (PE) pada serapan 2918 cm-1, polipropilena (PP) pada serapan 2917 cm-1, polistirena (PS) pada serapan 3348 cm-1, 2917 cm-1, 1397 cm-1, politetraflouoroetilena (PTPE) pada serapan 1030 cm-1 dan poliamida pada serapan 1586 cm-1. Berdasarkan analisa SEM-EDX, sampel mikroplastik mengandung unsur C, O, Na, Al, Si, Cl, dan K serta tidak ditemukan logam berat. Variasi bentuk, jenis, dan komposisi unsur-unsur pada sampel mikroplastik disebabkan karena adanya perbedaan aktivitas masyarakat di sekitar Sungai Kapuas Kota Pontianak. Penelitian ini dapat menjadi dasar dalam melakukan kegiatan konservasi dan mitigasi dari dampak polusi mikroplastik di kawasan Sungai Kapuas Kota Pontianak.