bluuebunny/crossref_metadata_2025 huggingface dataset:
Avaliação da espectroscopia no infravermelho próximo para previsão da composição químico-bromatológica da silagem de sorgo
Authors:   Universidade Estadual Vale do Acaraú, Santos Valcicleide Oliveira dos , Bomfim Marco Aurélio Delmondes ,   Embrapa Caprinos e Ovinos, Santos Sueli Freitas dos ,   Embrapa Caprinos e Ovinos, Tonucci Rafael Gonçalves ,   Embrapa Caprinos e Ovinos, Cavalcante Ana Clara Rodrigues ,   Embrapa Caprinos e Ovinos, Silva Igor Cassiano Saraiva ,   Universidade Estadual Vale do Acaraú, Chaves Ana Karina de Lima ,   Universidade Estadual Vale do Acaraú, Pereira Patrício Leandro ,   Universidade Estadual Vale do Acaraú
Published: April 2023

The objective was to evaluate the adequacy of near-infrared spectroscopy for predicting the chemical-bromatological composition of sorghum BRS 658 and BRS Ponta Negra silage, in PVC mini-silos, ensiled at grain maturation stages E7 or milky, E8 or pasty and hard mealy. The model using the Savitzky-Golay 1st Derivative for DIVMS showed lower RMSEC, RMSECV and RMSEP (5.96, 7.42, 6.96) respectively. For DIVMO, the Multiplicative Signal Correction (MSC) + Savitzky-Golay 1st Derivative model with two windows showed better performance, with higher R2 in calibration, validation and prediction (0.82, 0.72, 0.56) respectively. In the independent validation of the models, no significant difference was observed between the predicted and reference values for the BP, IVMSD and IVMOD variables. The NIRS methodology is capable of accurately predicting the protein content, in vitro digestibility of dry matter and in vitro digestibility of organic matter in sorghum silage.
Pengaruh Promosi Jabatan, Pelatihan dan Lingkungan Kerja Terhadap Kinerja Pegawai Bakesbangpol Kabupaten Luwu Utara
Authors: Nurhasanah Nurhasanah , Saharuddin Saharuddin , Khadapi Muammar
Published: April 2023

Tujuan dari artikel ini adalah untuk mengetahui pengaruh promosi jabatan, pelatihan, lingkungan kerja terhadap kinerja pegawai. Pendekatan penelitian yang akan digunakan dalam penelitian ini adalah pendekatan kuantitatif. Adapun objek penelitian merupakan semua pegawai Bakesbangpol Kabupaten Luwu Utara dengan populasi sebesar 30 orang pegawai, dimana seluruh populasi dijadikan sampel penelitian dengan menggunakan sampel jenuh. Teknik analisis pada penelitian ini menggunakan uji validitas dan reliabilitas, uji hipotesis, uji koefisien determinasi dan metode rergresi linier berganda. Pengolahan data menggunakan perangkat lunak SPSS versi 23. Dari hasil penelitian menunjukkan bahwa variabel promosi jabatan dan pelatihan berpengaruh signifikan terhadap kinerja pegawai Bakesbangpol Kabupaten Luwu Utara. Lain halnya dengan variabel lingkungan kerja yang berpengaruh tidak signifikan terhadap kinerja pegawai Bakesbangpol Kabupaten Luwu Utara.
RECOVERING OF THE RESERVOIR CONDUCTIVITY BY MEASUREMENTS ON THE SURFACE USING GPR DATA
Authors:   Sobolev Institute of Mathematics, Siberian Branch of the Russian Academy of Sciences, Shishlenin Maxim , Shakhatova Aliya , Mirgalikyzy Tolkyn ,   L.N.Gumilyev Eurasian National University
Published: April 2023

In this article we consider a mathematical model of interpretation of a geoelectric section based on georadar data. One of the reasons preventing the spread of GPR technologies is the complexity of data interpretation, which requires the involvement of highly qualified specialists. In this regard, the study of the mathematical model and comparison with real georadar data expands the possibilities of interpretation of the georadar. To test the algorithm for solving the inverse problem of determining the electrical conductivity of layered media, data from exploration wells of the Karaganda coal basin field were used. We assume that the medium is horizontally layered and the electromagnetic pa- rameters of the medium depend only the depth. The problem of determining the conductivity is reduced to the problem of minimizing the cost functional by the gra- dient method. The gradient of the functional is calculated through the solution of the adjoint problem, the results of numerical calculations are given.
MATHEMATICAL MODEL OF COVID-19 TRANSMISSIBILITY DURING THE VACCINATION PERIOD
Authors:   Computer, Networks, Mobility and Modeling laboratory (IR2M), Faculty of Sciences and Technics, Faculty of Sciences and Technics, Aqel Fatima , Hamza Alaa ,   LAMAI Laboratory, Faculty of Sciences and Technology University of Cadi Ayyad, Nour Eddine Alaa
Published: April 2023

The aim of this work is to develop a new Reservoir People (RP) transmission mathematical model, to simulate the potential transmission of COVID-19 virus and Delta variant in the Moroccan population during the vaccination period. The originality of this work resides in the fact that the different parameters that appear in the model problem, depend on the period of vaccination. The existence and uniqueness of non-negative normalized solutions are proved. A cost function to minimize with respect to the parameters is defined. To this aim, a novel hybrid algorithm, called Neural Network with Sine-Cosine algorithm (NNSCA) is proposed. The obtained numerical simulation confirms that our model is robust and can efficiently predict the evolution of the virus in Morocco during the vaccination period.
ON DETERMINATION OF THE COEFFICIENT AND KERNEL IN AN INTEGRO -DIFFERENTIAL EQUATION OF PARABOLIC TYPE
Authors:   Bukhara branch of the institute of Mathematics named after V.I. Romanovskiy at the Academy of sciences of the Republic of Uzbekistan,, Durdiev Durdimurod , Zhumaev Zhonibek
Published: April 2023

The inverse problem of determination of x-dependent coefficient a(x) at u and the kernel k(t) functions in the one-dimensional integro–differential parabolic equation is investigated. The direct problem is the initial-boundary problem for this equation. Firstly, we studied the solvability of the direct problem, by used to the Fourier method and approximation series methods. As additional information for solving inverse problem, the solution of the direct problem by over determining condition is given. The problem is reduced to an equivalent closed system of Volterra-type integral equations with respect to unknown functions. Applying the method of contraction mappings to this system in the continuous class of functions, we prove the main result of the article, which is a local existence and uniqueness theorem of inverse problem solution.
A FLOW EQUATION FOR DYNAMIC GRAPH CONTROL: APPLICATIONS TO SOCIAL NETWORK ANALYSIS
Authors:   Universitat Polit`ecnica de Val`encia, Falciani  , S ́anchez P ́erez
Published: April 2023

Consider a model of information propagation through a network based on time- dependent directed graphs. Let us consider a pulse that starts at any node and an index—a real function acting on the nodes of the network—that represents the state of a node with respect to the transit of this signal. We present a flow-type equation to be satisfied by these indices, which allows us to unify the method for writing the mathematical formulas describing their evolution, and also to define new indices for global evaluation of the information circulation process. We focus our attention on the dissemination of information through Twitter, showing that PageRank is a basic example of index satisfying the flow equation, and also that we can use the flow equation to generate new meaningful indices in a constructive way.
Arising Challenges From Single-use Plastics and Personal Protective Equipment Through COVID-19 Pandemic in Waste Management System in Developing Countries
Authors:   Department of Environmental Health Engineering, Environmental Sciences and Technology Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran., Mokhtari Mehdi , Khatebasreh Masoumeh ,   Department of Environmental Health Engineering, Environmental Sciences and Technology Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran., Mazaheri Negar ,   Department of Health in Disaster and Emergencies, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran., Zarei Mahmmodabadi Hadi ,   Department of Environment, Faculty of Agriculture and Natural Resources, Islamic Azad University of Meybod, Yazd, Iran., Faramarzi Karim ,   Ardakan University of Applied Sciences, Ardakan, Iran., Golshiri Ahmad ,   Department of Environmental Health Engineering, Environmental Sciences and Technology Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran., Nikjoo Mohsen ,   Municipality of Shahroud, Shahroud, Iran., Ghaleh Askari Sahar ,   Department of Environmental Health Engineering, Environmental Sciences and Technology Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Published: April 2023

COVID-19 pandemic has led to lifestyle changes. One of the consequences of these changes is seen in the management of municipal solid waste. Management of single-use plastics and personal protective equipment (PPE) as one of the common solid waste in the period is one of the important challenges in waste management. This research was conducted by studying the articles related to the COVID-19 pandemic, plastic waste and PPE. The articles were selected based on a specific search protocol and selection criteria.: Because of inhabiting regulations for recycling, almost all produced waste was landfilled during early months of the COVID-19 pandemic. During a short while, developed countries started coping with waste-originated issues thank to their appropriate infrastructure. On the other hand, single-use plastics and unsafe disposed PPE has made health and economic problems in developing and low-middle income countries. There is an urgent need to make some corrections in waste management systems as well as public education to minimize the adverse effects of COVID-19 in developing countries.
Socially useful services of scientific journals should be funded by the state
Authors: Dementiev V. E.
Published: April 2023

The article shows that the share of fundamental research carried out by business varies over time, but remains significant. As a consequence, not all fundamental knowledge is a public good. The uneven accumulation of knowledge, changes in the structure of research and development are highlighted as additional factors affecting publication indicators of the scientific sphere. The closer the research approaches the pre-competitive stage, the less likely it is that the knowledge obtained will be published in scientific journals. The policy of constantly increasing the number of publications in academic journals does not correspond to the nature of the real process of accumulation of fundamental knowledge, does not take into account a very important role of business in this process. The functions performed by scientific journals, including expert analysis of incoming materials and recommendations to the authors, also significantly effect this process. The issue of state funding of scientific journals should be resolved taking into account the fact that their activities are not just servicing the authors of articles, but providing an important service to the whole society. Remuneration of reviewers will contribute to improving the quality of this service.
Pengaruh Kualitas Produk Terhadap Kepuasan dan Loyalitas Pelanggan pada Pelanggan Batik Batam di Dekranasda Kota Batam
Authors: Putri Effendi Salma , Edison Emron
Published: April 2023

The purpose of this study was to determine the effect of product quality on customer satisfaction and customer loyality in batik Batam customers of Dekranasda Batam City. This research conducted at building of Dekranasda Batam city, this building also Galery of Dekranasda Batam City and Office of Dekranasda secretariat. This type of research is explanatory research with a quantitative method approach. This research was conducted by distributing quetionnaires to 336 respondents. Data analysis using descriptive and verification analysis, the analysis model used is a simple linear regression test. Data management using the windows version of SPSS software. Based on the result of the descriptive analysis test, it was found that the value of the product quality variabel with an average 4,52 was in the “Very good” category. obtained the value of customer satisfaction variable with an average 4,53 was in the “Very good” category. obtained the value of customer loyality variable with an average 4,46 was in the “Very good” category. While the result of the verification analysis of product quality variables on customer satisfaction obtained a t-count of 22,770, greater the t-table, namely 1,967 with a significance value of 0,00<0,05, wich mean that the product quality partially (t-test) has a positive and significant effect on customer satisfaction. The result of the verification analysis of product quality variables on customer loyality obtained a t-count 17,560, greater the t-table, namely 1,967 with a significance value of 0,00<0,05, wich mean that the product quality partially (t-test) has a positive and significant effect on customer loyality. The results of the calculation show that the coefficient of determination product quality variables on customer satisfaction is 0,608 or 60,8%, meaning that customer satisfaction is influenced by product quality of 0,608 or 60,8%, while the results of the calculation show that the coefficient of determination is 0,480 or 48%, meaning that customer loyality is influenced by product quality of 0,48 or 48%.
Pengaruh Konsep Health Tourism Terhadap Motivasi Kunjungan Wisata ke Sari Ater
Authors: Nurul Fitriany Diny , Kartika Titing
Published: April 2023

This study aims to determine: (i) the concept of health tourism in Sari Ater; (ii) motivation for tourist visits to Sari Ater; (iii) the influence of the concept of health tourism on the motivation for tourist visits to Sari Ater. The method used in this research is quantitative by distributing questionnaires to a sample of 100 Sari Ater tourists randomly. The results of the questionnaire were processed using the SPSS 24 application by testing the validity, reliability, normality, simple linear regression, t test, and the coefficient of determination. The hypothesis of this study is "There is an influence from the concept of health tourism on the motivation for tourist visits to Sari Ater". The results are: (i) the concept of health tourism in Sari Ater shows an average score of 3.63 in the good category. (ii) the motivation for a tourist visit to Sari Ater shows an average score of 3.63 in the good category. (iii) the effect of the concept of health tourism on the motivation for tourist visits to Sari Ater shows the t value of 11.468 is greater than t table 1.66055 which can be said to have a positive and significant effect. With a RSquare value of 0.573 or 57.3% of the contribution made by the concept of health tourism to the motivation of tourist visits with a pretty good category. At the end of the research, the authors suggest that the main and supporting facilities can be repaired or equipped by Sari Ater.
Analisis Motivasi Wisatawan Terhadap Keputusan Berkunjung di Desa Wisata Lamajang
Authors: Lingga Syawaluddin , Kemala Zia
Published: April 2023

Analysis of Tourist Motivation on the Decision to Visit in the Lamajang Tourism Village was a study conducted to see the effect of tourist motivation to increase visiting decisions. If there was an influence in the decision to visit, then the motivation of tourists provided an increase in the decision to visit. But, if there is no influence in the decision to visit, then the motivation of tourists does not provide an increase in the decision to visit. The research method used was a quantitative research method with descriptive analysis with verification approach. Data collection techniques were observations, interviews, and questionnaires. Primary data sources were obtained from a questionnaire of 110 respondents. The results showed that the variable Tourist Motivation influenced which decision to visit. It can be seen from the increase of Tourist Motivation can provide an increase in Visiting Decisions. In addition, Tourist Motivation was also influenced the Visiting Decision. Based on the results of the Determination Coefficient Test showed that the variable Tourist Motivation gave effect as much as 31,2% and the remaining 68,8% is influenced by other factors were not examined in this study. Based on these results it can be concluded that Tourist Motivation had had an influence in improving the Visiting Decision.
Pengaruh Kualitas Website Terhadap Keputusan Menginap di Banyan Tree Bintan
Authors: Septiandy Wiguna Rizky , Riana Nova
Published: April 2023

The purpose of this study was to obtain findings regarding the implementation of the website, the decision to stay and the effect of website quality on stay decisions. The object of this research is the guests who stay in Banyan Tree Bintan. Banyan Tree Bintan is a 5- star hotel located in the Riau Islands, to be exact, on the island of Bintan, in a protected forest area that offers a luxurious lifestyle amidst nature. The type of research is descriptive and verification, and the method used in this research is quantitative with statement in the questionnaire form to guests by taking a sample of 400 guests randomly. The results of the questionnaire will be processed using SPSS 24 by testing validation, reliability, normality and simple linear regression. The hypothesis of this study “there is an effect of website quality on the decision to stay at Banyan Tree Bintan” The result is: a constant value (a) 12.479 which indicates the quality of the website plays an active role in improving the decision to stay at Banyan Tree Bintan. The regression coefficient (b) value obtained for the decision to stay is the quality of the website (0.828) descriptively, the value of the website quality variable has a positive influence on the decision to stay, this is because the regression coefficient of the website quality variable is positive, meaning that if there is an increase in the website quality score by 1 unit In the condition that the other variable scores are the same or constant, this will be followed by an increase in the quality of the website (0.828) by the unit. At the end of the research, the author suggests that Banyan Tree Bintan continues to improve the quality of the website so that guests get more satisfaction while surfing the Banyan Tree Bintan website.
Pengaruh Motivasi Wisatawan dan Promosi Terhadap Keputusan Berkunjung di Curug Sentral Jayanegara Kabupaten Sukabumi
Authors: Nuraldian Muhammad , Sri Rizki Asti Karini Rieke , Agoes Adrian
Published: April 2023

This study aims to determine the effect of tourist motivation and promotion on the decision to visit Curug Sentral Jayanegara. The method used is descriptive quantitative verification method. The sample used was 355 respondents with a Simple Random Sampling approach and SPSS Statistics 24 software for Windows. Data collection techniques using observation, interviews, questionnaires and literature study. The results showed (1) tourist motivation had a significant effect on the decision to visit 50.20%, (2) promotion had a significant effect on the decision to visit 31.60%. (3) tourist motivation and promotion simultaneously have a significant effect of 48.80% on visiting decisions and (4) there is a correlation between tourist motivation and promotion of 0.428. Based on these results, it can be concluded that tourist motivation and promotion have an influence in increasing visiting decisions.
Pengaruh Keragaman Produk dan Lokasi Terhadap Minat Berkunjung di De’tuik Resto & Resort Bandung
Authors: Marta Ainillah Talitha , Hidayat Sukriadi Erie , Muchtar Arisman
Published: April 2023

This research aimed to determine the effect of product diversity and location both partial and simultaneous on the interest in visiting De'Tuik Resto & Resort Bandung. The research used quantitative methods with descriptive analysis and verificative analysis. Data collection technique employed a questionnaires by distributing questionnaires to a sample of 100 respondents. The analytical methods used are Validity Test, Reliability Test, Multiple Linear Regression Analysis, Correlation Coefficient, Determination Coefficient, t Test and F Test. Hypothesis testing using SPSS 20 for Windows. The results of this research indicate that all statement items are valid and reliable. Multiple linear regression test results have a significant and positive effect on visiting interests, namely variables in product and location diversity. The results of correlation analysis showed that the relation between variables was categorized as strong. In addition, from the F test produced Fhitung 207,432 is greater than Ftabel 3.09 so that Ho was rejected, Ha accepted means that the variable diversity of products and locations significantly affects the interest in visiting De'Tuik Resto & Resort. The calculation of the coefficient of determination (R²) resulted in a value of 0.810. The values showed that together the diversity of products and locations (independent variables) had an effect on visiting interests (dependent variables) by 81% and the remaining 19% were influenced by other variables not studied in this research.
Analisis Kualitas Pelayanan dan Strategi Persiapan Wisma Atlet Jakabaring Sport City Palembang
Authors: Permatasari Mustika , Chandra Lesmana Andhika
Published: April 2023

Sports tourism has become a very important element in the world of tourism because it has become a very competitive tourism business. The success of holding the 2019 MXGP world championship in early July 2019 made the city of Palembang again trusted to host an international sporting event, namely the 55th Qubica AMF Bowling World Cup. One of the supporting factors in the implementation of the event is the availability of hotels/lodging as a means of residence for participants and officials. This study aims to determine the quality of service and the readiness strategy of Wisma Atlet Jakabaring Sport City Palembangto support the successful implementation of the 2019 CUP Bowling Event. The method used in this study is the Mix Method, with data collection techniques in the form of observation, documentation studies, questionnaires, and interviews. . The results of the study stated that the qualitative analysis of the readiness of the completeness of the facilities and infrastructure was said to be sufficient, and based on its function, although maintenance had to be carried out again, it could still be said to be good, and for quantitative analysis it was known that the highest dimension was the Empathy dimension with a value of 3.00. and the lowest in the Tangible dimension of 2.87, with an average value of 2.97, the preparation of the Jakabaring Palembang Sport City Athlete House is in the Enough category.
Kemenarikan dan Konsep Pengembangan Indiana Camp Sebagai Wisata Adventure di Kabupaten Bandung Barat
Authors: Winda Fitriani Resti , Rizki Asti Karini Rieke Sri
Published: April 2023

Adventure tourism is a type of tourism in the category of special interest tourism. This type has an exclusive impression because it tends to be attracted by certain people or groups who have an interest, because it tends to have a challenging nature and high risk. One of the tourist destinations in West Bandung Regency is Indiana Camp. This destination has the theme of extreme tourism and adventure with the characteristics of cliff heights and Citatah Karst Limestone Mountain. The problem taken is the attractiveness of attractions and the concept of development in Indiana Camp as adventure-based tourism. The method used is descriptive qualitative. Data obtained from primary and secondary data by observation, interviews, documentation, literature, triangulation and questionnaires. The results showed that the aspects of learning, rewarding, enriching and adventure felt by tourists who visited in the category of adventure tourism. Types of attractions and activities are stated in the Soft Adventure category, that attraction activities at Indiana Camp are dangerous, challenging, but fun. Aspects of accessibility to Indiana Camp is not good. Aspects of the facilities available are quite good. Aspects of zoning division already exist and are well implemented. Aspects of circulation route planning are equipped with relevant information. The interpretation program aspect has been implemented. The aspect of building facilities that this destination uses environmentally friendly methods and materials. Aspects of attraction and development of adventure-based tourist attraction are included in the category of adventure-based special interest tourism, because the nature of the attraction is dangerous, challenging, but fun. Based on these results, it can be concluded that the tourist attraction of Indiana Camp is included in the category of adventure tourism.
Pengaruh Lingkungan Kerja dan Budaya Organisasi Terhadap Kinerja Karyawan di The Luxton Hotel Bandung
Authors: Ilham Dahlan Asep , Edison Emron
Published: April 2023

This study aims to determine, examine and analyze the influence of work environment and organizational culture on employee performance at The Luxton Hotel Bandung. This research uses quantitative method with analysis descriptive and verification. The number of samples is 74 which is the total number of the entire existing population. The results showed that by the descriptive variable work environment is in a good category, organizational culture good and good employe performance. While verification of environmental variables work tcount 1,213 < ttable 1,993 and significance 0,229 > 0,05 means it has but not significant effect on employee performance variables. While organizational culture variable tcount 14,332 > ttable 1,993 and significance 0,000 < 0,05 means it has an influence positive and significant to employee performance. Simultaneously variable work environment and organizational culture affect employee performance positive and significant, where Fcount 197,916 > Ftable 3,13, and significance 0,000 < 0,05. The total effect is 84,8%, while 15,2% of employee performance variables will be influenced by other variables that were not taken into account in the study.
Pengaruh Kualitas Pelayanan dan Atraksi Wisata Terhadap Kepuasan Pengunjung di Desa Wisata Alamendah
Authors: Fitri Alyani Annisa , Fajri Khoirul , Riyanti Anti
Published: April 2023

This research aimed to determine the effect of service quality and tourist attractions on customer satisfaction in the Alamendah tourism village. The method used in this research is a quantitative method with descriptive analysis and verification analysis, by distributing questionnaires to 100 tourists. The results of the instrument test show that all statements are valid because the value is above 0.300 and reliable because the value is above 0.700. Descriptive research shows that service quality has an average result of 3.31, tourist attractions have a 3.27 result and customer satisfaction has a 3.26 result. While the results of the verification show a coefficient of determination of 0.941 or 94%, the remaining 5,9% which is a variable that has not been studied. The test results show a significant influence between service quality variables on visitor satisfaction of 0.00 ? 0.05 and tourist attraction variables of 0.00 0.05 with a simultaneous significance of 0.00 ? 0.05, meaning the quality of service and attractions tourism has a strong and significant influence, either partially or simultaneously.
A toxina botulínica tipo a no tratamento das linhas faciais hipercinéticas introdução
Authors: Bessa Vicente Alberto Lima
Published: April 2023

O envelhecimento é uma condição inevitável e contínua à qual todos os seres vivos estão sujeitos. Infelizmente, ele tem seus efeitos negativos que resultam no declínio das funções corporais. A diminuição da elastina, colágeno e outras proteínas resulta em linhas finas e rugas mais pronunciadas. Para promover o rejuvenescimento facial, os profissionais prescrevem a toxina botulínica tipo A, que previne e trata as rugas dinâmicas. Este estudo de revisão narrativa da literatura teve como objetivo investigar o uso da toxina botulínica tipo A em procedimentos estéticos para tratamento de linhas faciais hipercinéticas. A pesquisa buscou nas bases de dados SciELO e Google Acadêmico estudos relacionados ao tema por meio dos descritores toxina botulínica, linhas faciais hipercinéticas, rugas dinâmicas. Para este trabalho foram utilizados artigos em português publicados entre 2019 e 2022 disponíveis na íntegra para leitura e a bula do Botox® da Allergan Produtos Farmacêuticos Ltda. Foram excluídos deste estudo artigos publicados fora do período supracitado, duplicados, acesso pago e aqueles que não se enquadram nos objetivos deste estudo. No total, foram selecionados sete artigos além da bula do Botox®. A aplicação da toxina botulínica tipo A (BTA) é considerada um dos procedimentos injetáveis mais conhecidos mundialmente, sendo um método seguro, minimamente invasivo, com baixa incidência de efeitos adversos e alto índice de satisfação.
Uma revisão integrativa da liderança em enfermagem no Brasil
Authors: Santos Marcia Rodrigues dos , Barros Carla Ferreira Rodrigues Dias , Silva Luciana Pinheiro Barbosa da
Published: April 2023

A pesquisa sobre liderança em enfermagem cresceu na última década, com maior ênfase no papel dos gerentes/líderes de enfermagem  nas organizações de saúde (CAI, W.et.al, 2019). A liderança é considerada uma das habilidades mais  importantes que os profissionais de saúde adquirem.  Segundo  Vera  Brasil  (2017),  a  integração  entre  a  capacidade  crítica  e  reflexiva  de  saberes  e  de  fazeres  diversos  é  essencial  e,  portanto,  necessária  para  os  profissionais liderarem  de forma eficaz e eficiente. Sabe-se que a atuação do enfermeiro está  focada  em aspectos  assistenciais e  gerenciais,  o  que  o  torna  um  profissional  presente  e  necessário  em  diferentes  serviços  de  saúde  (MAIA  et  al.,  2020).  Sendo a gestão  uma  área  designada  para  a  coordenação  e  administração  das  tarefas e equipes (DIAS et al., 2021). Ademais, a formação de enfermeiros líderes têm tido destaque nas graduações em saúde para atuação  nas  organizações  de  saúde  (MOURA, et al., 2019). Diante disso, nota-se a relevância ao  pensar  na  atuação  do  enfermeiro  na  gestão,  levando  em  consideração  que  uma  boa  gestão  do  setor  está  relacionada  à  qualidade  do  cuidado  e  assistência  prestada  à  população. No contexto atual, o exercício da liderança representa uma realidade que permeia as condutas do enfermeiro, em virtude da frequente ocupação de cargos de chefia nos serviços de saúde. Segundo Maia (2020) a atuação do enfermeiro  está  focada  em aspectos assistenciais e gerenciais, tornando-se um profissional  presente e necessário em diferentes serviços de saúde. Portanto, há necessidade de compreender melhor o estilo de liderança dos gerentes de enfermagem no Brasil. O objetivo deste estudo  foi  analisar  o  estilo  de  liderança  do  enfermeiro no Brasil.
Impact of oil waste discharge from Al-Nassiriya oil refinery upon physical chemical properties and heavy elements content of vicinity soil
Authors: Bassim y. AL-khafaji  , Noora Q. Kareem
Published: April 2023

The present study attempt to know the impact of oil waste discharge from Al-Nassiriya oil refinery upon some  physical chemical properties and heavy elements  (HEs) concentration  in the vicinity soil , during the period from  January until August  2020 . Some physical and chemical factors were measured also selected HEs ( Co , Ni , Pb and V ) concentration in the soil were measured by using Flam Atomic Absorption  Spectrometry ( FAAS ) , in addition to soil texture and total organic carbon content were measured as percentage . The results revealed that the range of the soil parameters were ,  Temp.(16.3 – 44.3) ◦c , pH (6.0 - 8.7) , electrical conductivity E.C. (119.2-312.10) µs/cm  , salinity (0.02 - 1.63) gm/kg , porosity (29 – 58) % ,  NO3 (7.91 - 97.5) mg /kg , PO4 (5.4 - 24.7) mg/ kg , SO4 (480 - 1739) mg/kg , while soil texture was silty clay at st.1 and st.2 , sandy loam at st.3 and silty loam at st.4 . Total organic carbon  (TOC %) content and organic matter (OM%) were ranged from (3.89  - 17.52) % and (2.26 – 10.16) % respectively . HEs content in the soil of study  were ranged from Pb (5.9  - 63.7 ) , Co (4.7  -  51.77) , V (36  - 181 ) and Ni (5.57  - 222 ) mg/kg  dry weight respectively .
High Efficiency Solar Cells Base on Organic-inorganic Perovskites Materials
Authors: Zainab. R. Abdulsada  , Samir M . AbdulAlmohsin
Published: April 2023

In this research (PCBM) was used as Electron Transport Material (ETM) and (P3HT) as Hole Transport Material (HTM). where used with the perovskite (CH3NH3PbI3) and changed the thickness ETM from (100nm) to (2600). And changed the effective density of states (CB, VB) (from 2.20E12, to=2.20E20 for CH3NH3PbI3) with this variable an efficiency of 9.74% was obtained at 263.15(k). By using SCAPS simulation software.
Improvement of The Photostability of Nimodipine by Using Liquisolid Compacts Technique
Authors: Mustafa E. Khazim  , Hamid J. Hasan  , Noor M. Hanoon  , Hussein A. Hussein Al-Sa’idy
Published: April 2023

Liquisolid compacts are one of the modern drug formulation  techniques used for drug formulation for several objectives including protection against photosensitivity. This study evaluates the photoprotective effect of the liquisolid compact technique on a calcium channel blocker antihypertensive drug, nimodipine, which is considered a photosensitive drug model. Liquisolid compact tablets of nimodipine were prepared from; Avicel PH-102 as a carrier material, (colloidal silicon dioxide, Cab-O-sil,  and titanium dioxide as coating materials), croscarmellose sodium (CSS), sodium starch glycolate (SSG), crospovidone (CP) as super disintegrants, and propylene glycol as the liquid vehicle. However, the ratio of carrier to coating materials was kept constant in all formulations at 35:1. This ratio was chosen after testing the ratios 15:1, 20:1, 25:1, 30:1 and 35:1. The feasibility of the prepared liquisolid systems was also evaluated for first; the pre-compression and post-compression characteristics. Second, the possible drug-excipients interaction using FT-IR. Third, the photostability of Nimodipine in pure form, conventional tablets, and in the prepared liquisolid tablets through irradiation with a light dose of 0.55 W/m2/h visible light, 50 W/m2/h UVA and 0.27 W/m2/h UVB for 12 h in order to estimate the effect of coating material type on Nimodipine stability especially in the prepared liquisolid formulations. The results showed that all of the prepared liquisolid tablets showed satisfactory properties regarding pre and post-compression properties. Interestingly, the FTIR spectra study ruled out any interaction between nimodipine and excipients in the prepared liquisolid tablets. Besides, all of the prepared liquisolid tablets had shown a superior drug dissolution profile compared to the conventional and direct compressed tablets. Finally, 92.43% of the drug remaining was found in the liquisolid formulation (F7) after 12 h photo-irradiation as compared to 65.48% drug remaining for the pure drug substance and 75.12% for directly compressed tablets indicating that liquisolid technique had significantly inhibited the photo-degradative effect of light in the prepared liquisolid formulations. It can be concluded that the liquisolid compacts technique is a promising approach for the improvement of photostability of this photosensitive Nimodipine with an acceptable stability as well as enhanced dissolution rate.
Preparation of Hybrid Junction Light Emitting Device from Cadmium Sulphite Quantum dot/ poly-TPD Junction
Authors: Riyadh Mohammed Hussein , A. Ibrahim Omar
Published: April 2023

Stratums of ITO/TPD:PMMA/CdS/Alq3/Al were used to make the hybrid nanoparticles light emitting diode (NPs-LED), which were created using the phase segregation method and the spin coating procedure. Light-generating NPs-LED hybrid device is composed of 3 stratums stacked in a certain order on an Indium tin oxide(ITO) substrate made of transparent conducting oxide. The first stratum was (N, N'-bis (3-methylphenyl)-N, N'-bis (phenyl) benzidine) (TPD) polymer, and polymethyl methacrylate (PMMA) polymer. Cadmium Sulphite (CdS) is the second stratum, while Tris (8-hydroxyquinolinato) aluminum (Alq3) is the last stratum, which is one of the materials used as electron injector stratums.

Various bias voltages (28, 30, and 32V) were used to examine the electroluminescence (EL) of NPs-LEDs at room temperature, depending on the CIE 1931 color spaces, `light was created at 32V, whereas blue light was generated at 28V. The transmission between sub levels in the energy gap of CdS NPs (surface state). Voltages are controlling the current change, and the knee voltage is 6.6 V, as seen by the current – voltage (I-V) distinctive. EL spectrum demonstrates a broadband emission spanning 300 nm to 700 nm. Finally, it is discovered that the correlated color temperature (CCT) is about (7450 to 11820k).
Eucalyptus black liquor properties in a lignin extraction process: density, dry solids, viscosity, inorganic, and organic content
Authors: MACHADO VIANA CRUZ VITOR , DANGELO JOSÉ VICENTE HALLAK
Published: April 2023

Extracting lignin from black liquor is becoming more common, although only a few research papers discuss the impact of the process on the liquor’s primary properties. This work aims to determine the changes in black liquor properties as it undergoes a lignin extraction process using carbon dioxide (CO2).
A diluted eucalyptus black liquor sample (DBL) was acidified with CO2 to a final pH of 8.5. After filtration, the kraft lignin was removed, and the filtrated lignin lean black liquor (LLBL) was collected. Five acidified black liquors (ABL) samples were collected during acidification at pH 10.5; 10.0; 9.5; 9.0; and 8.5. The samples were analyzed regarding
lignin content in solution, sodium carbonate (Na2CO3), sodium sulfate (Na2SO4), density, dry solids content, and viscosity. While Na2SO4 remained almost constant, Na2CO3 presented an enormous increase in its concentration when comparing DBL with LLBL. As pH decreased, the lignin content in the solution was also reduced due to lignin precipitation. The results showed similar behavior for dry solids, density, and viscosity of the supernatant, but an increase in density was observed around pH 9.00. In light of this, the density of LLBL turns out to be closer to the one in the initial DBL. The significant increase in carbonate content could explain this behavior during acidification with CO2 once the inorganic content significantly influences the property. The viscosity was determined from 10 s−1 to 2000 s−1. We observed a Newtonian behavior for all samples. The increase in carbonate content in the sample is crucial information to the recovery cycle, especially for calculating the mass and energy balance when targeting the use of the LLBL.
On the diagnosis of a fouling condition in a kraft recovery boiler: combining process knowledge and data-based insights
Authors: BELISÁRIO A.B. , EDBERG A. , BJÖRK M. , ALMEIDA G.M. , VAKKILAINEN E.K.
Published: April 2023

Fouling is still a major challenge for the operation of kraft recovery boilers. This problem is caused by accumulation of ash deposits on the surfaces of heat exchangers in the upper part of the boiler over time. The first consequence is the reduction of steam production due to loss of heat transfer and, finally, the shutdown of the boiler due to clogging. The present work investigated the operational condition of a modern kraft boiler under a critical fouling condition. This boiler had even faced a manual cleaning due to a clogging event. This analysis combined process knowledge, plant team experience, and a data-driven approach, given the complexity of the process. In this sense, historical data covering this critical period of operation were collected. After a cleaning procedure, they were used to obtain a predictive neural network model for the flue gas pressure drop in the boiler bank, which is an indirect measure of ash deposit accumulation. Once validated, it was used for sensitivity analysis, with the aim of quantifying the effects of the model inputs. Five variables out of eighteen accounted for nearly 60% of the total effect on pressure drop. Namely, primary air temperature (21.6% of the total effect) and flow rate (11.1%), black liquor flow rate (9.9%) and temperature (8.4%), and white liquor sulfidity (8.6%). The analysis of these results mainly suggested an excess of carryover, which composes the ash deposits. Recommended actions to mitigate the fouling condition involved adjustments to the primary air system before the more drastic solution of reducing the boiler load.
Recovery boiler back-end heat recovery
Authors: SAARI JUSSI , KAIKKO JUHA , SERMYAGINA EKATERINA , HAMAGUCHI MARCELO , CARDOSO MARCELO , VAKKILAINEN ESA , HAIDER MARKUS
Published: April 2023

Sustainability and efficient use of resources are becoming increasingly important aspects in the operation of all industries. Recently, some biomass-fired boilers have been equipped with increasingly complex condensing back-end heat recovery solutions, sometimes also using heat pumps to upgrade the low-grade heat. In kraft recovery boilers, however, scrubbers are still mainly for gas cleaning, with only simple heat recovery solutions.
In this paper, we use process simulation software to study the potential to improve the power generation and energy efficiency by applying condensing back-end heat recovery on a recovery boiler. Different configurations are considered, including heat pumps. Potential streams to serve as heat sinks are considered and evaluated. Lowering the recovery boiler flue gas temperature to approximately 65°C significantly decreases the flue gas losses. The heat can be recovered as hot water, which is used to partially replace low-pressure (LP) steam, making more steam available for the condensing steam turbine portion for increased power generation. The results indicate that in a simple condensing plant, some 1%–4% additional electricity could be generated. In a Nordic mill that provides district heating, even more additional electricity generation, up to 6%, could be achieved. Provided the availability of sufficient low-temperature heat sinks to use the recovered heat, as well as sufficient condensing turbine swallowing capacity to utilize the LP steam, the use of scrubbing and possibly upgrading the heat using heat pumps appears potentially useful.
Tác động ngưỡng của nợ công đến tăng trưởng ở các nước ASEAN
Authors: Huỳnh Thế Nguyễn
Published: April 2023

Bài báo này phân tích hiệu ứng ngưỡng nợ công đối với tăng trưởng kinh tế ở các nước ASEAN. Mô hình được sử dụng trong nghiên cứu là ngưỡng bảng động để phân tích bộ dữ liệu từ một số nước ASEAN trong giai đoạn 2002 – 2020. Kết quả nghiên cứu chỉ ra rằng ngưỡng nợ công trên GDP trung bình của các nước ASEAN là 95,7%. Nếu nợ công thấp hơn mức ngưỡng này thì nợ công có đóng góp tích cực vào tăng trưởng kinh tế. Ngược lại, nợ công trên GDP vượt ngưỡng thì có tác động tiêu cực đến tăng trưởng. Ngoài ra, nghiên cứu chỉ ra rằng ngưỡng nợ công của các nước ASEAN trong khoảng 52,5% – 97,7%. Do đó, các nhà làm chính sách kinh tế nên đề xuất mức ngưỡng nợ công phù hợp trong việc mở rộng tài khóa và gia tăng nợ công để thúc đẩy tăng tưởng.
Intrawound Vancomycin Powder Application for Preventing Surgical Site Infection Following Cranioplasty
Authors: Youn Seong Bin , Hwang Gyojun , Kim Hyun-Gon , Kang Jae Seong , Kim Hyung Cheol , Oh Sung Han , Kim Mi-Kyung , Chung Bong Sub , Rhim Jong Kook , Sheen Seung Hun
Published: April 2023

Objective : Surgical site infection is the most detrimental complication following cranioplasty. In other surgical fields, intrawound vancomycin powder application has been introduced to prevent surgical site infection and is widely used based on results in multiple studies. This study evaluated the effect of intrawound vancomycin powder in cranioplasty compared with the conventional method without topical antibiotics.Methods : This retrospective study included 580 patients with skull defects who underwent cranioplasty between August 1, 1998 and December 31, 2021. The conventional method was used in 475 (81.9%; conventional group) and vancomycin powder (1 g) was applied on the dura mater and bone flap in 105 patients (18.1%; vancomycin powder group). Surgical site infection was defined as infection of the incision, organ, or space that occurred after cranioplasty. Surgical site infection within 1-year surveillance period was compared between the conventional and vancomycin powder groups with logistic regression analysis. Penalized likelihood estimation method was used in logistic regression to deal with zero events. All local and systemic adverse events associated with topical vancomycin application were also evaluated.Results : Surgical site infection occurred in 31 patients (5.3%) and all were observed in the conventional group. The median time between cranioplasty and detection of surgical site infection was 13 days (range, 4–333). Staphylococci were the most common organisms and identified in 25 (80.6%) of 31 cases with surgical site infections. The surgical site infection rate in the vancomycin powder group (0/105, 0.0%) was significantly lower than that in the conventional group (31/475, 6.5%; crude odds ratio [OR], 0.067; 95% confidence interval [CI], 0.006–0.762; adjusted OR, 0.068; 95% CI, 0.006–0.731; p=0.026). No adverse events associated with intrawound vancomycin powder were observed during the follow-up.Conclusion : Intrawound vancomycin powder effectively prevented surgical site infections following cranioplasty without local or systemic adverse events. Our results suggest that intrawound vancomycin powder is an effective and safe strategy for patients undergoing cranioplasty.
THEORETICAL AND METHODOLOGICAL APPROACHES TO UNDERSTANDING THE STATE BORDER AND ITS PROTECTION
Authors:   Ivan Chernyakhovsky National University of Defense of Ukraine, Servatyuk V. , Yablonskyi I. ,   National Academy of the State Border Service of Ukraine named after Bohdan Khmelnytskyi
Published: April 2023

In the article, on the basis of the operational experience of the bodies and units of the State Border Guard Service of Ukraine, armed conflicts, the analysis of scientific and methodological literature and the legal framework, the issues related to the understanding of the state border as an object of the national security system and its protection are investigated. It has been proven that the principle of the inviolability of state borders is a logical continuation of the principle of territorial integrity of states and constitutes one of the most important bases of security. The main content of the principle of inviolability of borders can be reduced to three elements: recognition of existing borders as legally established in accordance with international law; refusal of any territorial encroachments at the moment or in the future; refusal of any other encroachments on these borders. The main content of the principle of the inviolability of the state border is: 1) preventing illegal changes to its line; 2) ensuring compliance with the state border regime and the border regime; 3) countermeasures against the illegal movement of people across the state border, illegal migration, human trafficking, as well as the illegal movement of weapons, narcotic drugs, psychotropic substances and precursors, ammunition, explosives, materials and objects prohibited for movement across the state border; 4) cessation of provocations, incidents and conflicts at the state border. Theoretical approaches to the understanding of the state border and its protection have been improved, which consists of following concepts: �state border security�, �state border security sphere�, �state policy in the sphere of state border security�, �crisis situation in the sphere of state border security�.