bluuebunny/crossref_metadata_2025 huggingface dataset:
SYNTHESIS OF PLANAR MECHANISMS, PART XI: AL-JAZARI QUICK RETURN-MOTION MECHANISM
Authors: Hassaan Galal Ali
Published: February 2023

This is the 11th research papers in a series of papers aiming at the optimal synthesis of planar mechanisms. The mechanism in hand is invented by Al-Jazari in the 12/13th century and is analyzed before by the author for a specific time ration, stroke and transmission angle. In the present work the mechanism is optimally synthesized for maximum time ratio and desired normalized stroke.  Five functional constraints are defined to control the performance of the mechanism. The MATLAB optimization toolbox is used and four dimensions of the mechanism are assigned in a normalized form. Normalized stroke range from 1 to 5.45 is covered and the study shows that it is possible with Al-Jazari mechanism configuration to go to a time ratio as large as 6.3. The optimized synthesis of the mechanism can keep the transmission angle of the mechanism during complete crank rotation within a range from 45 to 116.7 degrees for the range covered for the desired normalized stroke.
OXYGEN AS OXIDANT AND ANTIOXIDANT
Authors: Silaev Michael M.
Published: February 2023

New reaction scheme is suggested for the initiated nonbranched-chain addition of free radicals to the multiple bond of the molecular oxygen. The scheme includes the addition reaction of the peroxyl free radical to the oxygen molecule to form the tetraoxyl free radical. This reaction competes with chain propagation reactions through a reactive free radical. The chain evolution stage in this scheme involves a few of free radicals, one of which (tetraoxyl) is relatively low-reactive and inhibits the chain process by shortening of the kinetic chain length. Based on the proposed scheme rate equations (containing one to three parameters to be determined directly) are deduced using quasi-steady-state treatment. The kinetic description with use the obtained rate equations is applied to the γ-induced nonbranched-chain processes of the freeradical oxidation of liquid o-xylene at 373 K and hydrogen dissolved in water containing different amounts of oxygen at 296 K. The ratios of rate constants of competing reactions and rate constants of addition reactions to the molecular oxygen are defined. In these processes the oxygen with the increase of its concentration begins to act as an oxidation autoingibitor (or an antioxidant), and the rate of peroxide formation as a function of the dissolved oxygen concentration has a maximum. From the energetic standpoint possible nonchain pathways of the free-radical oxidation of hydrogen and the routes of ozone decay via the reaction with the hydroxyl free radical in the upper atmosphere (including the addition yielding the hydrotetraoxyl free radical, which can be an intermediate in the sequence of conversions of biologically hazardous UV radiation energy) were examined. The energetics of the key radical-molecule gas-phase reactions is considered.
THE COLLAPSE OF THE THEORY OF RELATIVITY
Authors: Avagyan Dr. Slavik
Published: February 2023

The basis of Einstein's relativity theory is the Michelson-Morley experiment. In this paper, based on fundamental laws of physics and mathematics prove the absurdity (inconsistency) of the Michelson-Morley experiment, as it ignores the basic laws of physics.
A BASELINE STUDY OF WATER QUALITY IN BRONDONG- LAMONGAN ESTUARY TO SUPPORT THE COASTAL ZONE MANAGEMENT.
Authors: Risandi Johan
Published: February 2023

Water quality information is one of theimportantfactors for coastal zone management. The sources of pollution may come from industrial, agricultural and domestic which are daily discharged mainly into rivers and end up in the ocean. This paper evaluates water quality parameter from the estuary of the main river flowing aroundLamongan, i.e. theBrondongriver. There were three categories of water parameters identified from the collected water samples, viz. physical, chemical andbiological concentration. Those water samples were analysed in the laboratory, and the results were then comparedtothe minister of environment’s regulation for seawater quality standard. The result showedthe water quality of the estuary is still in relatively good condition. However, some water quality parameters were out of the standard. For example, Dissolved Oxygen in both rivers was below 5. Nutrient (i.e. Nitrate) concentration was above the permitted limit of 0.008 mg/L. The samples taken from the rivers also were considered to be safe from pathogen due to thevery low presence of Total Coliform. This study output will be a baseline frame for future studies. Further, the information will be used to verify a water quality model developed for the area.
OVAL DIAGRAM ILLUSTRATION SUB-ATOM, ATOM
Authors: Chunwu Sun
Published: February 2023

According to French scientist Laplace, we must regard the current state of the universe as the result of its previous state and the causation of later development; if there is a wisdom to comprehend the location of each entity, and even to analyze these things, it can outlines the movement of cosmic inventory with a single formula, from maximal celestial body to minimal atom, so that the future can be clearly presented just as the past.
ECCENTRIC ROTATING ENGINE MANUSCRIPT
Authors: Chunwu Sun
Published: February 2023

The utility model relates to an eccentric rotary engine. When the hollow rotating shaft rotates, the eccentric rotary assembly in the casing is used to store/release energy, and the gravity of the eccentric rotary assembly is fully used to press the casing during the energy release process, so that the energy can be transmitted to the shell, thereby effectively utilizing the energy and reducing the energy of the engine consumption.
TREATMENT OF HALF-LIFE VALUES OF SOME LEAD ISOTOPES FOR THE EMISSION OF ALPHA-PARTICLES IN 178≤A≤194
Authors: Gado K. A.
Published: February 2023

To develop equations to calculate the half-life of lead isotopes theoretically and compare them with practical results by assuming a simple mathematical model based on the probability of forming alpha particles inside the parent nucleus before tunneling decay them. It is assumed that the presence of an alpha particle inside the nucleus has a Coulomb effect dependent on the reduced mass of the alpha particle with the core, reducing the rest of the effects on the effective potential. The effective radius depends on the mass number of the core and the cluster. The model assumes that there is a number of collisions before tunneling decay, taking into account the existence of the potential barrier penetration coefficient, which expresses the potential permeability of the potential barrier to the alpha particles within it. The model assumes that the Gamow coefficient is dependent on the atomic numbers of both core and cluster, the reduced mass, and the effect of the energy of the alpha particles and takes into account the value of the Coulomb effect.
EQUILIBRIUM AND THERMODYNAMIC MODELING FOR THE BIOSORPTION OF CU (II) IONS ON LIME (CITRUS AURANTIFOLIA) PEEL BIOSORBENTS
Authors: Sethu Vasanthi , Lau Phei Li
Published: February 2023

A novel biosorbent, derived from dried peels of lime (Citrus aurantifolia ) was used for the  removal of Cu (II) ions from aqueous solutions. The effects of pH, biosorbent dosage and temperature on the biosorption of Cu (II) ions were investigated in batch mode. At optimal conditions, with pH 5, 0.4 g/L of biosorbent dosage, 100 mg/L of initial Cu (II) concentration and temperature 80 ⁰C, the maximum biosorption capacity obtained was 100 mg/g. Equilibrium data was best described by both the Langmuir and Freundlich model, indicating the involvement of more than one mechanism for the sorption process. Thermodynamic studies revealed that the biosorption process is favorable, spontaneous and endothermic in nature. The outcome of this study revealed that dried lime peel powder has good potential to be used as a low cost and environmentally friendly biosorbent for the removal of Cu (II) ions from aqueous solutions.
RESEARCH ON MULTI-LEVEL INDICATOR OF HOIST WITH PROFIBUS-DP INTERFACE
Authors: Zhang Mingming  , Jiang Xiaoqi SunManman , Qianliang Lu Jiaqi You
Published: February 2023

Traditional elevator indicators have been improved for traditional elevator indicators with strict communication requirements, high communication costs, and unsuitable for fieldbus-guided industrial production. That is, the PROFIBUS-DP interface is developed for the traditional  hoist multi-level indicator,  and  the bus bridge  is used  to complete the communication  protocol conversion  during the  data  transmission  process, so that it can be added to the field bus production system. This paper deals with the design of the multi-level indicator hardware  circuit of the  hoist  with  PROFIBUS-DP  interface  and  the  design  of  the software circuit.  Finally,  the  system  test  platform was built  to  verify  that  the  hoist  indicator structure is simple and reliable.
EFFECT OF BENOMYL ON CARBOXYMETHYL CELLULASE (CMC-ASE) PRODUCTION BY TRICHODERMA KONINGIIAS FREE OR ALGINATE IMMOBILIZEDCELLS
Authors: Ibrahim AL- alwani Enas M. , S.A. Abubaker Nagah
Published: February 2023

The Screening of three isolates of Trichoderma (T.  ghanense, T. harzianum and T. koningii) for Carboxymethyl cellulase (CMC-ase) production. Whereas, T.  koningii was the most potent isolates for enzyme activity. Trichoderma, koningii produced CMCase at all the tested levels of   benomyl (C14H18N4O3) and enzyme production with entrapped fungal species was not affected by the addition of benomyl at concentrations 5, 10, 15 and 20 μg a.i / ml. Enzyme production was improved by the alginate encapsulation as compared with conidia suspension. Alginate entrapped conidia of Trichoderma koningii was successfully used in 3-repition for CMC-ase production.
HYDROCARBONS SPILLS AND THEIR EFFECTS ON GERMINATION AND GROWTH IN POLLUTED SOILS
Authors: M. Abou El Leil Ibrahim
Published: February 2023

The effects of hydrocarbons in plant germination and growth were investigated using specified plants (beans) and selected loamy soil from an area located nearby Tobruk city. A total of 12 pots having 2 viable. Beans seeds each; containing 10 kg of loamy soil were investigated. Pots were used as control experiment, 5 had hydrocarbons applied before planting seeds at levels of 100ml 150ml, 200ml, 250ml and 300ml and 5 had hydrocarbons applied in soil after germination of seeds. It was observed that seeds in the control pots had normal growth, where as in the hydrocarbons applied soil before planting, seeds had no germination and those in hydrocarbons applied soil after planting, the plants had stunted growth.
AGEDABIA FORMATION AND THE ENVIRONMENTAL IMPLICATION OF ITS BIOTA AT GARYOUNIS, SW BENGHAZI.
Authors: H. Al Riaydh Mohammed , Abdulsamad Esam O.
Published: February 2023

The main aim of this paper was to study the Quaternary Agedabia Formation in Garyounis area; this study is based on different paleontological evidences to deduce the various environmental conditions. One lithostratigraphic section have been measured and investigated. It consists mainly of calcarenite and clay. The thickness of the section is 2 m along the mouth of Wadi Al Qattarah at Garyounis area, SW Benghazi city. A number of samples have been studied and about 13 species of fauna and flora have been identified. They include three foraminifera, four bivalves, four Ostracodes, one gastropod and unidentified Bryozoans specimen have been observed also. The cement type (isopachous) of the studied section is confirming that the calcarenite is of subaqueous or marine in origin. The studied calcareous algae plus the associated foraminifer’s points that the calcarenite was deposited under fairly warm (15-30oC) shallow marine conditions with a suggested bathymetric range between 030m.
GEOCHEMICAL EVALUATION OF SURFACE WATER QUALITY AND APPROPRIATENESS FOR DRINKING AND IRRIGATION PURPOSES IN THE AIN TAFARUT, GHADAMIS CITY, SW LIBYA
Authors: Shaltami Osama R. , Fares F. Fares  , Oshebi Farag M. EL , Errishi Hwedi , A. Alemam Hafsa , A. Abulla Abdurrahman , Moftah Souad A. , Elghaza Rabea , Baayou Mohamed
Published: February 2023

The goal of the current study is the geochemical assessment of surface water at the Ain Tafarut, Ghadamis city, SW Libya. The chemical data include sulfur isotope (δ34S-SO4), major ions, trace elements, EC, TDS, TH, Alk and pH. The water is immature and hard. It falls in the field between NaCl and NaCaHCO3 types in the Piper diagram. Dominance of rock and evaporation is clear in the water. The contaminant values (except for Na, P, Cl, Br, Ba, Pb, As, Cd and Ni) are below the acceptable limit of WHO (2018). The water is seriously affected by P, Br and Ba (MI>6). The as content demonstrates that the water is not suitable for irrigation.
RELANCE DE LA FILIÈRE CAFÉ DANS LE BASSIN DE PRODUCTION DU MOUNGO: UN ÉCHEC PROGRAMMÉ RELAUNCH OF THE COFFEE SECTOR IN THE PRODUCTION BASIN OF MUNGO: A PLANNED FAILURE
Authors: Linda Tatsabou Doriane , Mérimé Aguekam Ngako , Maurice Tsalefac
Published: February 2023

The 1990s coffee crises encouraged agricultural diversification amongst households in the Mungo, thus leading to a decline in coffee yields. To curb the situation, the state of Cameroon adopted a strategy to revive the sector. In this light, ten programmes/projects have been launched in the Mungo since 2009. By 2020, this policy has not yielded expected results due to the failure of nine out of the ten programmes. This article sought to examine the external and internal factors attributable to this failure. Surveys (450) and interviews carried out with the local and institutional actors concerned reveal that the bankruptcy of the recovery policy stems from the scarcity of funding (12%) and the misuse of skilled labour (50 trained personnel out of 107). In addition, we note a satisfaction rate in deficient agricultural inputs (34.11%), poor management of support by beneficiaries, a lack coordination of programmes and their monitoring at the local level and the failure of in initiating a north-south synergy in agriculture. Therefore, the State must rethink its coffee revival policy in the Mungo by taking into account training and sustainable support for producers, as well as the promotion of new agroforestry systems involving coffee.
EFFECT OF HONEY AND OLIVE OIL ON SERUM CHOLESTEROL LEVELS: A PRELIMINARY STUDY
Authors: H Alemam , M Abugeela , Y Lamami , N Enattah , A Bashein
Published: February 2023

Cholesterol is probably the best known steroid because of its association with atherosclerosis. Previous studies shown association of olive oil use with reduced serum cholesterol levels. In addition, honey has been shown to have beneficial effects on lipid profiles. Therefore, this study was carried out to investigate the effects of olive oil and honey on total cholesterol level in healthy Libyan individuals. The study was conducted on 75 Libya volunteers aged 40-55 years divided into 3 groups including, 25 olive oil group aged 49.47±2.15, honey group aged 50.07±2.01, olive oil and honey group aged 52.07±4.31. The total cholesterol level was measured before and after the experiment and expressed as (mg/dL).The chemical and physical properties of the olive oil used in the study were found to be compatible with permitted limits issued by the Libyan National Centre of Standardization and Metrology .Our results showed that olive oil and honey significantly reduced total serum cholesterol (p<0.001) and (p<0.05) respectively. Furthermore, combination of olive oil and honey significantly reduced total cholesterol (p<0.001) by 21%. We conclude that the utilization of olive oil and honey can lead to a significant decrease in the levels of total serum cholesterol in blood.
OCCURRENCE OF HCV AMONG THE POPULATION OF GHEDWA VILLAGE, LIBYA
Authors: M. Tamalli, , Mohamed Ali, E. , Fassal Fathia Mohammed
Published: February 2023

Hepatitis C virus (HCV) is a globally prevalent pathogen and a leading cause of death and morbidity. HCV exhibits high genetic diversity, characterized by regional variations in genotype prevalence. Hepatitis C virus was found to be endemic in certain countries, and different studies have confirmed such endemicity. There is an alarming news is that HCV transmission is more by household contacts of people. Aim of the present study is that to determine the occurrence of HCV in Ghedwa village and find out the possible risk factors behind the prevalence of HCV in this region.

Study and data collection are from the Sabah city central hospital, Libya during 2014 and 2015.  300 cases have divided in to 4 groups on the basis of age (165 samples of age group less than 30 years old included 74 males and 91 females, 77 samples of age group 31-50 years old included 44 males and 33 females, 44 samples of age group 51-70 years old included 24 males and 20 females and 14 samples of age group 71-90 y ears old included 8 males and 6 females). 5 ml of blood samples collected and centrifuged to collect the serum.  HCV infection, HCV IgM and IgG antibodies were analyzed using a third-generation ELISA kit (DIALAB, GmbH, Austria). (2)  Ministry of health, Ghedwa , Libya.    In Ghedwa village, the study shows that male cases with HCV positive were more than the female cases. Education and profession also play a major role in the HCV infections.  This preliminary report regarding the number of HCV cases and seropositive study of IgG and IgM both reflect more cases in male middle age group. The presence of hepatitis C across Libya is not homogeneous and show high rate in some areas. This indication of the effect of the higher rates in some area is due to the effect of alarming levels in neighboring countries.
DETECTION OF ORAL FUNGAL MICROBIOME (MYCOBIOME) OF DIABETIC PATIENTS IN POLYCLINICS OF BENGHAZI - LIBYA
Authors: Masoud Fariha. A. M. , Elmajbery Saleh. H.
Published: February 2023

This study was conducted in Benghazi city, Oral fungal microbiome were isolated from oral cavities of 92 diabetic patients and 40 non diabetic volunteers. Swab taken from their oral cavities then  inoculated  in Sabauruod  Dextrose  Agar (SDA) and incubated at 27 °C  for  two to three days for colony study after  that  make subcultures  using  Potato dextrose agar ( PDA ) for microscopic study. Identification of oral fungi shows that Out of 132 subject,  38 shows no fungal growth , 63 samples of candida (53 pure candida and 10 cases candida mixed with other fungi), 7 fungal species other than Candida  have been  identified with conformation from  Assiut University  Mycology Centre (AUMC) in Egypt which were : 7 samples of Asperogillus spp (6 in diabetics &1in non diabetics ), 8 samples of Alternaria .alternate (5 in diabetics & 3 in non-diabetics), 3 samples of Fusarium  foetens (2 in diabetics & 1in non diabetics ), 4 samples of Cladosporium  herbarum. (Diabetics), 2 samples of Stemphylium botryosum (in diabetics), 2 samples of Geosmithia lavendula. (Diabetics), 5 samples of Penicillum crustosum   (diabetics). The Candida species identified  by  Quyfia chest hospital  Laboratory  (Phoenix 100 Apparatus – BD, USA), .candida species were identified as : Candida albicans  (44 cases), Wangilla dermatitidis (Saccaromycets)  (7cases Candida dubliniensis ( 4 cases ),  Geotricum  species ( 4cases ),Candida sake ( 4 cases).  Asperogillus species were: 2 samples Asperogillus.nigger, 3 samples A. fumigatus and 2 samples A. flavus.
THE IMPLEMENTATION OF BUILDING INFORMATION MODELING TECHNOLOGY ON BUILDING CONSTRUCTION
Authors: Tamara Dewi , Ogan Syailendra
Published: February 2023

The development of the digital technology is sophisticated so that in construction field undergoes technology needs change resulting good quality to improve time and cost efficiency in organizing construction. Planning and actuating the construction uses AutoCad, Ms.Project, previously, but these applications have not been integrated to the other application. It makes time consuming in using them. Nowadays, technology in construction scope has resulted in a system called Building Information Modeling or BIM. It is a system or technology involving some important information in construction project and is used in architecture, engineering and construction (AEC). Construction employer in Indonesia has not much used BIM system, in fact that BIM make the construction process is easy and fast especially in building construction compared to the conventional construction. It, therefore, needs further research to investigate the superiority of BIM in building skyscraper. The type of the study was qualitative by comparing the skyscraper building using conventional system and BIM system. This present case study expects to insist the construction employer that the use of BIM technology promises time and cost efficiency although it requires high investment compared to the conventional method. The result of the study inferred that using Building Information Modeling (BIM) technology results in time and cost efficiency and effectiveness in constructing building compared to the conventional method, which needs long time to complete the work and high cost.
APPLICATION OF PHENOTYPIC AND GENOTYPIC STRATEGIES TO IDENTIFY PSEUDOMONAS AERUGINOSA
Authors: Eswani Mohamed , Naass Ashraf , Elmarzugi Nagib A. , Elmarghani Ahmed M , Mohammed Elfgee  , Elbasir Mohammed O
Published: February 2023

A case study of patient presented with developed wound infection with Pseudomonas aeruginosa (leukocytosis). The strains of P. aeruginosa isolated from Sheffield General Northern Hospital (UK) and studied for phenotypic and genotypic identifications. This present study were conducted in Sheffield Hallam University (UK) and was aimed to evaluate the application of Phenotypic and Genotypic techniques to identify P. aeruginosa. Generally, the results of Real time PCR (RTPCR) revealed that the diagnosis viability was confirmed for P. aeruginosa. However, identification on the basis of phenotype by differences in types of growth on cetrimide and acetamide agar medium presents that both agars were conducive to the growth of P. aeruginosa. The strains of P. aeruginosa were also tested for antibiotic susceptibility to six different antibiotics, imipenem showed the greatest inhibition effect on the bacteria. It was observed that genetic techniques in accordance with phenotypic tests have facilitated to conduct a comprehensive characterization of P. aeruginosa strains obtained from a particular environment at a particular time.
SEEBECK COEFFICIENT OF TERNARY SEMICONDUCTING VANADIUM–COBALT– TELLURITE GLASSES
Authors: Tawati D. M. , Mohamed Aghzeila B. , Hussein N. A. , saltani H. A. , Arof A. K.
Published: February 2023

The Seebeck coefficient, S, of semiconducting V2O5–CoO–TeO2 bulk glasses have been measured in the temperature range 300 – 506 K. The glass samples were prepared by the press–quenching method from glass melt. The thermoelectric power, TEP, data revealed that all glasses were n–type semiconductors with Seebeck coefficient in the range from –602 to –790 μV/k. The investigations provide information on the polaron formation and the disorder energy due to random fields. The Seebeck coefficient was found to be dependent on the CoO content and the temperature independent of TEP for all glass compositions. TEP experimental results were adequately explained by Heikes’ formula.
O potencial pedagógico das unidades de conservação na amazônia paraense: educação ambiental e função socioambiental
Authors: Avelar Marcilene Calandrine de , Pereira Júnior Antonio , Pontes Altem Nascomento , De Paula Manoel Tavares
Published: February 2023

O artigo objetivou analisar o panorama da educação ambiental e da função socioambiental de parques ambientais urbanos da Amazônia paraense. A pesquisa é qualitativa do tipo bibliográfica e documental. Para levantamento dos dados fez-se levantamento em bases eletrônicas sem restrições: Portal de Acesso a Coordenação de aperfeiçoamento do Pessoal de Ensino Superior (CAPES), Google Acadêmico e links oficiais de organização governamentais na esfera federal, estadual e municipal, entre outros. O recorte temporal é 2000-2022. Os resultados mostram que os parques ambientais possuem caráter interdisciplinar e são “espaços vivos” que tem, por meio da educação ambiental, o potencial de promover a compreensão crítica sobre o meio ambiente, efetivando suas funções socioambientais e garantindo o bem estar da sociedade. Entretanto, é necessário acentuar sob o ponto de vista da educação ambiental crítica o potencial pedagógico  que há nesses espaços.
Teaching team writing online during and after COVID-19
Authors: Myatt Alice
Published: February 2023

Collaborative writing assignments are an essential element of teaching technical and professional writing, and they should be included in online writing instruction (OWI). The COVID-19 pandemic was a drastic interruption of regular teaching practices that had the potential of derailing the practice of assigning online collaborative writing projects, which often require a heavy investment of time and energy to manage. As educators and scholars, we must learn from the experiences we had during the pandemic time. For example, amidst the trials and turbulence of the period, we had an opportunity to learn from some of the practices we undertook and identify ways to support post-pandemic team-writing online. This article focuses on the integration of online collaborative writing projects, among which are team-written assignments. Using an archival case study approach combined with reflective writing, several current intersections are explored: the landscape of Online Writing Instruction (OWI): the application of four specific themes to collaborative writing projects; how digital meeting platforms have transformed collaborative writing projects; assessing collaborative writing projects completed during mandated isolation; and how best to support student learning in all of the preceding intersections. Results suggest that agile practices, transparency, adaptability, and virtual makerspaces support online team-writing assignments.
Post-pandemic digital writing instruction will be Resilient, Open, and Inclusive
Authors: Cummings Robert
Published: February 2023

During the pandemic three widespread shifts in teaching cultures affected digital writing pedagogies: resilient teaching, open teaching, and inclusive teaching. Resilient teaching design emerged as a strategy to counter the unpredictability of public health policies on class delivery modes, and emphasised designing for maximising student interactions as a response. Open teaching started as a response to a lack of access to textbooks and evolved to transform functions normally reserved for teaching into learning activities. In addition, inclusive teaching practices, developed as a response to racial and social injustices, resulted in deliberate emphasis on class structure to incorporate all students. Although seemingly disparate and disconnected from the issues of technology that normally influence the teaching of digital writing, each shift focused on student needs and predict a future for digital writing pedagogy.
Is Being a Good Empiricist the Same as Being a Good Naturalist? The Case of the Relationship Between Science and Christian Theism
Authors: Bylica Piotr
Published: February 2023

Using Feyerabend’s argumentation, and rephrasing of the problem in terms of the Model of Levels of Analysis, I show that a good empiricist need not be a (metaphysical or methodological) naturalist. I characterize the ideas of Alvin Plantinga and Jitse M. van der Meer as being representative of two different varieties of theistic response to the problem of the relationship between Christianity and contemporary science. Against van der Meer, I argue for Plantinga’s conclusion about the value of theism-based science. Against both approaches, I point to situations where theistic assumptions do indeed influence the contents of observation.
Examining How Voice Teachers Influence Student Achievement
Authors: Fletcher Heather , Krause Amanda , Davidson Jane
Published: February 2023

While studies have defined voice teacher expertise, seldom have associations been made between voice teachers and their students’ performing achievements. This study investigated which characteristics and attributes of successful classical and music theatre voice teachers influence student success. A sample of 123 Australian voice teachers (77% females, 22% males, 1% non-binary), aged 26–78 years old (M=48.23), completed an online, quantitative survey examining teacher background, experience, and genre. Additionally, standardized, quantitative measures examined psychological components such as teacher empathy and leadership. Findings demonstrated statistically significant associations between greater student achievement and the teacher’s own performance and teacher training and achievements as well as the number of students they have taught. Additionally, teacher leadership, specifically training facilitation and positive feedback, was statistically positively associated with student achievement. Teacher genre was not found to influence student success. These findings indicate that incorporating leadership training into voice pedagogy courses, while facilitating ongoing performing and professional development, could contribute to voice teacher expertise which would conceivably produce more successful students.
The Life of a Collaborative Pianist: A Rich Education
Authors: Loewen Laura
Published: February 2023

What do collaborative piano and university administration have in common? After sixteen years of working as a professor of Collaborative Piano/Vocal coach, I entered the world of administration. Making this shift revealed the lessons learned through collaborative piano and the unique strengths and abilities that a life in collaboration has given me. In this article, I reflect on my journey and the insights gained along the way.
Your Voice Matters to Our Health
Authors: Maxfield Lynn
Published: February 2023

Mental health challenges are endemic in much of the world. There is a growing body of evidence that music participation has strong benefits to mental health and well-being. Singing teachers are uniquely positioned to capitalize on these benefits for the singers in their studios, and for their own well-being.
World Voice Day and the Pedagogic Community: Retrospection, Reflection, and Reassessment
Authors: Hoch Matthew
Published: February 2023

While World Voice Day has become international in scope, there remains no single website or resource devoted to the occasion. The interdisciplinary nature of the day and its associated events also results in various professional organizations each having their own “take” on World Voice Day; thus, information is not centralized, resulting in a plethora of websites and articles on the internet, sometimes with conflicting information. This article strives to unite these disparate strands, provide a brief history of World Voice Day in scholarship and practice, and offer some thoughts for voice pedagogues seeking to observe the occasion.
Music Reviews
Authors: Roland-Silverstein Kathleen
Published: February 2023

Review of new vocal music by NATS 2022 Art Song Competition winners Ericsson Hatfield and Stephen Jackson, and west coast American composer Mark Abel.
Shifting Gears in Multiple Styles: An Artist and Teacher of Singing’s Journey with the 2011 Revival of Follies
Authors: Means Weekly Edrie
Published: February 2023

NATS member Edrie Means Weekly has been a pedagogue and performing artist of both opera and musical theatre for over 35 years. In this article, Edrie discusses the audition process at the Kennedy City and in New York City resulting in her being cast as a standby for five Broadway stars in the 2011 revival of Stephen Sondheim’s Follies starring Bernadette Peters. Four of the five roles have large solo songs including the iconic songs “Broadway Baby” and “I’m Still Here”. The four songs were each written in a different musical style ranging from classical to full out traditional belt. As a vocal pedagogue, she discusses the styles of each song and the Vocal Stylisms or effects she added for emotion and expression to enhance the style. Edrie also includes one of her own vocal exercises she developed for herself back in the late 1980s to create laryngeal flexibility as she performed professionally in opera and musical theatre. She includes a couple of stretches useful for singers and dancers which were provided by Follies Broadway choreographer Warren Carlyle. Edrie talks about track cards and being a swing and discusses her preparation to build stamina to sing and dance a seven-minute tap song. Edrie Means Weekly’s article provides advice for those preparing for singing multiple styles in one show.
La obligatoriedad del precedente jurisprudencial para los jueces de lo contencioso administrativo
Authors: Dávila Carlos
Published: February 2023

El presente texto habla de la obligatoriedad del precedente jurisprudencial para los jueces de lo contencioso administrativo en Colombia. Se centra en las consecuencias de la inaplicación, partiendo de la base de la definición de precedente. Este se entiende, según la jurisprudencia imperante, tanto de la Corte constitucional como del Consejo de estado, como una decisión que contenga razones de la decisión (la famosa ratio decidendi). Por ende, se zanja el problema del número de decisiones para poder hablar de precedente en lo contencioso administrativo. Finalmente se dan las consecuencias penales, disciplinarias, de tutela, de responsabilidad del estado y de repetición para el despacho judicial que en Colombia no siga la regla del precedente.
XVII Semana Internacional del Derecho y la Criminalística “S.O.S Violencias”. Resúmenes de Ponencias de Estudiantes
Authors: Varios Autores
Published: February 2023

El presente trabajo tiene como objetivo, identificar si al aplicarse el embargo judicial en el salario de un trabajador, se puede llegar a vulnerar el derecho al Mínimo vital, en razón lo reglamentado por los artículos 25 y 53 constitucionales y artículos 155-157 del código sustantivo del Trabajo.

Para realizar el análisis en este tema, se ve necesario hacer el planteamiento del problema donde la pregunta problematizadora es: ¿se presenta vulneración del mínimo vital por aplicación del embargo judicial en el salario de un trabajador?

Para dar respuesta a esa pregunta se parte del análisis de las excepciones de embargo que contempla la ley, donde inicialmente, el salario mínimo es inembargable, más es de aclarar que primero, esto se refiere solo al salario mínimo legal y convencional, lo cual quiere decir que, si una persona gana más del salario mínimo legal mensual vigente, sobre la diferencia, sí, se puede hacer un embargo de hasta una quinta parte. Y segundo, que el código sustantivo del trabajo determina que existen dos excepciones de embargo al salario, a favor de Cooperativas legalmente constituidas y por concepto de pensión de alimentos, en las cuales no importa el valor del salario devengado por el trabajador o pensionado para hacer la retención.

Así mismo, se verificaron las excepciones anteriores y se hizo un análisis del concepto de mínimo vital, frente a casos particulares, donde se ha presentado vulneración de este derecho y donde jurisprudencialmente se han tomado decisiones para cada caso en particular.
La Interpretación de los Tratados sobre Derechos Humanos y su Jerarquía Legislativa en el Ordenamiento Jurídico Peruano
Authors: Velasco P. V. David M.
Published: February 2023

La presente investigación persigue establecer la jerarquía y correcta interpretación de los tratados referidos a derechos humanos suscritos por el Perú, de conformidad con las vigentes disposiciones contenidas en dicho ordenamiento jurídico, para lo cual el autor analiza la regulación de los convenios sobre derechos humanos contenida en la constitución peruana de 1979, comparándola con los preceptos que, con respecto a la misma materia, rigen en la constitución peruana de 1993. Finalmente, el presente artículo se ocupa del control de convencionalidad, para determinar su actual importancia en la protección e interpretación de los derechos y libertades en el referido país andino.
Incidencia del clima laboral en la satisfacción organizacional de los colaboradores del área administrativa en una universidad Ecuatoriana
Authors: Castillo Elizabeth , Espinel Johana
Published: February 2023

En la actualidad el clima laboral en las empresas se enfrenta a cambios acelerados tanto económicos, políticos, tecnológicos, sociales y culturales, lo que hace que los trabajadores cambien su conducta o comportamiento. El estudio del clima organizacional es una tarea compleja, por lo que se toma tiempo tratar de comprender todos los factores que lo determinan, de allí que el clima organizacional depende del grado de motivación de los empleados. El objetivo de la presente investigación es determinar la incidencia del clima laboral en la satisfacción de los colaboradores del área administrativa de una universidad ecuatoriana. Para este fin, se usaron la escala CL-SPC para medir el clima laboral y el cuestionario de Satisfacción Laboral, en el personal administrativo de una universidad pública en Ecuador, una muestra representativa de 106 funcionarios. Finalmente, se demuestra la incidencia que tiene el clima laboral en la satisfacción de los empleados, con base en las evidencias de validez, fiabilidad y los resultados significativos de los análisis estadísticos.
The Use of Intelligent Mathematical Models for Regional Investment Distribution Processes Analysis
Authors:   Tashkent State University of Economics, Uzbekistan, Tukhtabaev Jamshid S. , Otajanov Umid A. ,   Tashkent State University of Economics, Uzbekistan, Nurullaeva Shakhnoza T. Nurullaeva ,   Tashkent State University of Economics, Uzbekistan, Saydullaeva Saodat A. ,   Tashkent State University of Economics, Uzbekistan, Abdulxayeva Gulshan M. ,   Tashkent State University of Economics, Uzbekistan
Published: February 2023

In this article, the artificial neural network mathematical model is used for Regional Investment Distribution Processes Analysis in the regions of the Republic of Uzbekistan; forecasts are made using this model, and the results are compared with the results determined using the trend and panel methods, and the preferred method is defined. Multi-layer perceptron, radial-basis grid, generalized-regression grid, and recurrent grid can be used to solve the forecasting problem. In the study, a program for intellectual analysis and forecasting of socio-economic development indicators of the regions of the Republic of Uzbekistan using the generalized regression network was developed. This program makes it possible to extract the most necessary factors from other methods even in the presence of multi-factor indicators and determine the future forecast result under their influence. According to the results of the forecast determined using the intellectual mathematical model developed because of the research, by 2025, the volume of the gross regional product of Andijan region is expected to be equal to 95607.34 billion soums, and in Samarkand region, it is expected to be equal to 80419.73 billion soums, in Tashkent city it is expected to be 259301.8 billion soums. According to the error levels of the results determined by the intellectual mathematical method, it represents an average error of 1.13% compared to the forecast period. If we determine the result of the trend by the level of error, it is equal to an average of 4.96% error compared to the forecast period, and these results prove the superiority of the intellectual mathematical method developed in the research.
Improvement of accounting and audit of intellectual property
Authors:   Department of Accounting, Tashkent State university of economics, Tashkent, Uzbekistan, Rakhimberganovich Davletov I. , Davlatbayevich Dusmuratov R. ,   Department of Economic analyses and audit Tashkent State university of economics, Tashkent, Uzbekistan
Published: February 2023

The article explores the possibilities of using methods for analyzing the effectiveness of the use of intellectual property objects in the course of an audit. The article formulates proposals on the use of methods for analyzing the effectiveness of the use of intellectual property objects at the stages of the audit. An exemplary form of an intellectual property audit program using analytical operations is also proposed. The proposed approach to the implementation of a comprehensive analysis of the effectiveness of the use of intellectual property objects during the audit makes a certain contribution to the development of the audit methodology.
A hydroponic greenhouse fuzzy control system: design, development and optimization using the genetic algorithm
Authors: KHAFAJEH Hamid , BANAKAR Ahmad , MINAEI Saeid , DELAVAR Majid
Published: February 2023

Aim of study: The design and development of a hydroponic greenhouse fuzzy control system.
Area of study: The evaluation was performed using experimental data obtained from the literature. The construction and evaluation of the fuzzy control hydroponic greenhouse system was carried out in a greenhouse in Tehran, Iran.
Material and methods: The greenhouse environmental conditions, including temperature, humidity, and carbon dioxide, were controlled. The design of a fuzzy controller begun with the selection of linguistic variables, process status, and input and output variables. The fuzzy control system consisted of three modules: 1) fuzzy module, 2) cost function, and 3) genetic algorithm for the adjustment of the greenhouse environmental conditions.The next step was to select a set of linguistic rules and the type of fuzzy inference process. The rules were set once, and the fuzzy set and output value needed to be specified after the inference, along with the development of a non-fuzzy strategy.
Main results: The mean temperatures provided by the fuzzy control system during the day and night were 34.25°C and 23.22°C, respectively, which were improved to 31.17°C and 21.96°C after optimization. The mean humidity was 39.4% and 56.5% during the day and the night, respectively, which turned 60.22% and 74.59% after optimization. The control system also achieved desirable conditions in terms of CO2 amount.
Research highlights: The results showed that the measured values of temperature and relative humidity of the greenhouse were improved after optimization with genetic algorithm.
Innovations in designing microwave electro-technological units with hybrid chambers
Authors: TUHVATULLIN Midhat , ARKHANGELSKY Yuri , AIPOV Rustam , KHASANOV Eduard
Published: February 2023

Aim of study: Microwave (MW) electro-technological units based on electromagnetic radiation of ultrahigh-frequency can involve thermal MW modification of dielectrics and non-thermal MW modification of polymers.
Area of study: Russian Federation.
Material and methods: The paper considers a method for making a unit with a hybrid chamber, where thermal and non-thermal MW modifications were carried out simultaneously, and the remaining energy after non-thermal MW modification of polymers was used for heating the dielectric.
Main results: A microwave electro-technological unit with a hybrid chamber replaced two separate devices that implemented these MW modifications. It was cheaper and required one MW generator. The unit took up less space than two separate apparatuses, and upgraded the existing microwave dryer to perform thermal MW modification of a lumber pile and non-thermal MW modification of polymer materials. The existing microwave dryer was redeveloped by solving the boundary value problem in electrodynamics and heat and mass transfer.
Research highlights: The research presents a microwave electro-technological unit with a hybrid chamber, combining thermal and non-thermal MW modifications of dielectric and polymer materials. As a result of upgrading the existing microwave dryer, it was possible to carry out both thermal and non-thermal MW modifications, namely, microwave drying of timber and microwave drying of up to seven different polymer objects.
Perceptions of Trainees and Trainers towards Diversity Management in Applying Cooperative Learning in Technical and Vocational Colleges
Authors: Gebremariam Getachew Robo , Kidane Befekadu Zeleke , Gillies Robyn
Published: February 2023

The implementation of cooperative learning is highly influenced by the student diversity management. This study investigated how cooperative learning was employed at technical and vocational colleges in southwest Ethiopia to manage student diversity. To that end, a mixed research methodology was used to carry out the research investigation. The empirical data was acquired from 458 trainees, 181 trainers, and 24 educational officials using questionnaires and in-depth interviews. An independent sample t-test analysis showed that trainees have more favorable perceptions of students' diversity management in the application of cooperative learning than do trainers. Cooperative learning has been found to work better in diverse classrooms than in monolithic groupings.
Main factors of bone loss and the processes of osseointegration for dental implant: a systematic review
Authors: Carneiro Stefane Santana , Flausino Lorrayne Carneiro , Franco Nicoly Borges , Kassis Elias Naim
Published: February 2023

Introduction: In the cellular, molecular and structural scenario for dental implants, primary or mechanical stability in implant dentistry is considered a prerequisite for successful osseointegration. The alveolar bone architecture of the implant drilling site dictates the success of anchored endosteal implants. Objective: It was to carry out a systematic review to highlight the main variables that can compromise bone formation and osseointegration for dental implants. Methods: The systematic review rules of the PRISMA Platform were followed. The search was carried out from October to December 2022 in the Scopus, PubMed, Science Direct, Scielo, and Google Scholar databases, using articles from 2010 to 2022. The quality of the studies was based on the GRADE instrument and the risk of bias was analyzed according to the Cochrane instrument. Results and Conclusion: A total of 220 articles were found, and 65 articles were evaluated in full and 22 were included and developed in this systematic review study. Considering the Cochrane tool for risk of bias, the overall assessment resulted in 45 studies with a high risk of bias and 92 studies that did not meet GRADE. The success of the prosthetic restoration supported by osseointegrated implants and the health of the surrounding tissues, such as the reduction of bone loss, are closely related to the precision and adaptation of the components, the stability of the implant/abutment interface, as well as the resistance of this interface when it is subjected to loads during masticatory function. It is necessary to provide a complete understanding of the biological events that occur during osseointegration. Factors that can compromise bone healing are cholesterol, hyperlipidemia, and low vitamin D intake. Furthermore, the prominent influence of osteocytes and immune cells is influenced as being the main regulators during osseointegration and maintenance of the dental implant.
Regulation of the Status of Internally Displaced Persons in the Light of the Guiding Principles of the UN Human Rights Commission of 17.05.1998
Authors: Gamurari Vitalie , Cigulea Aliona
Published: February 2023

The development of the guiding principles regarding the status of internally displaced persons by the UN Human Rights Commission was a reaction to the critical situation in which this category finds itself, given the lack of regulation of their legal status at the international level. However, this document attempted to equalize the legal status of internally displaced persons and refugees, especially the normative framework that ensures security for internally displaced persons equal to that of refugees, including the involvement of international bodies.