bluuebunny/crossref_metadata_2025 huggingface dataset:
Resiliencia y violencia en el noviazgo: un estudio explicativopredictivo e instrumental con adolescentes colombianos
Authors:   Universidad de Nariño, Colombia, Herrera-López Mauricio , Castro-Delgado Lorena Marcela ,   Universidad de Nariño, Colombia, Villota-Torres Yoraldi Estefanía ,   Universidad de Nariño, Colombia, Herrera-Solarte Luisa ,   Universidad de Sevilla, España,   L’universita’ Degli Studi di Firenze, Italia
Published: April 2023

Introducción: los estudios sobre resiliencia y violencia psicológica en parejas adolescentes en Colombia son escasos, pues se ha explorado con mayor frecuencia la violencia en parejas adultas; además, la disposición de óptimos instrumentos de medida de la violencia psicológica en el cortejo adolescente es limitada. Objetivos: analizar la influencia de la resiliencia en la violencia psicológica en parejas adolescentes; para ello, inicialmente se validó el Cuestionario de Violencia Psicológica en el Cortejo (PDV-Q). Método: el estudio es explicativo-predictivo y de tipo instrumental. La muestra incidental estuvo conformada por 700 adolescentes colombianos, con edades entre 15 a 20 años (M = 18.40; DT = 1.56; 29.3 % hombres). Se reconoció la confiabilidad, la validez de contenido y de constructo con análisis factoriales; posteriormente, se analizaron los modelos de ecuaciones estructurales (SEM). Resultados: se reconocieron evidencias adecuadas de validez y valores óptimos de confiabilidad del PDV-Q. El modelo SEM sugiere influencias inversas de la competencia personal sobre el rol de agresión y victimización; así como una influencia directa de la aceptación de uno mismo y la vida sobre la victimización. Conclusiones: los bajos niveles de aceptación de sí mismo y de la vida podrían ser un factor de riesgo de victimización; mientras que un alto desarrollo de competencias personales sería un factor de protección ante la victimización y la agresión en el cortejo adolescente. El PDV-Q posee óptimas propiedades psicométricas y es adecuado para medir la violencia psicológica en parejas de adolescentes colombianos.
Do lean practices increase nurses' organizational commitment and job satisfaction in Turkey? – A private hospital model
Authors: Koç Zibel , Ecevit Alpar Şule
Published: April 2023

Background: Making the employee feel valued can significantly affect the employee's commitment to the organization. The most important criteria of lean health services are to develop a culture in which employees are empowered to be actively involved in the decision-making process. Objective: This study aims to examine whether lean management practices have an effect on increasing nurses' “organizational commitment” and “job satisfaction”. Method: The research was conducted in a private hospital in 2019-2021 in Turkey. In the study, the "Organizational Commitment and Job Satisfaction Questionnaire" was applied to staff nurses. Then the hospital management decided to implement “Lean Hospital” practices. In this process, lean training was given to the nurse management, and lean methods and techniques were applied in the field. After approximately 1.5 years, the questionnaires were re-issued to the participants again to compare and contrast results. Results: In the study, the mean score of the nurses from the "Job Satisfaction Questionnaire" before lean was 3.79±0.29, while it was 3.82±0.28 after lean. The average score from the "Organizational Commitment Questionnaire" before implementing the lean practices was 3.74±0.32.  It was 4.18±0.21 after implementing the lean practices. While there was a low level of positive correlation between the nurses' mean scores of organizational commitment and job satisfaction questionnaires before implementing lean practices, it was found that the result was moderately positive after lean practices. Conclusions/Implications for Practice: Ensuring the participation of employees in the decision-making process and listening to their suggestions in lean management were positively associated with “organizational commitment” and “job satisfaction”. However, it should not be forgotten that lean practices are a long-term and continuous methodology.
Uji Kesetaraan Aktivitas Antioksidan Seduhan Bunga Kenop (Gomphrena globosa L.) dengan Vitamin C Menggunakan Metode DPPH
Authors: Rohmah Martina Kurnia , Yulianti Ella Rahman , Ambari Yani
Published: April 2023

Steeping of Kenop flower (Gomphrena globosa L.) is widely used as a health herbal drink that contains betacyanin and flavonoid compounds that act as antioxidants. This study aims to determine the equivalence of vitamin C levels in steeping of Kenop Flower (Gomphrena globosa L) using the DPPH method. The DPPH method is a simple, fast, inexpensive and can be used to measure the ability of an antioxidant. Data analysis of the absorbance of the steeping of the Kenop flower was calculated using TAC (Total Antioxidant Capacity Index). Phytochemical screening of infusion of the positive Kenop flower contains alkaloids, flavonoids, saponins, tannins and triterpenoids. Kenop flower is made with various concentrations of 5, 10 and 15 gr is steeping in 100 ml aquades. The antioxidant activity of steeping of Kenop flower 50, 100, and 150 mg/ml was equivalence with vitamin C respectively at 9,71 ppm (0,009 mg/ml) 13,96 ppm (0,013 mg/ml), and 15,18 ppm (0,015 mg/ml).
Pollution Load Analysis of Wonokromo River with Program System Dynamics (STELLA)
Authors: Thifalina Filial Dhiya , Zaman Badrus , Sarminingsih Anik
Published: April 2023

Population growth, the increase in the industrial sector and the presence of waste from activities that haven’t been treated properly can make a water river being contaimined high pollutants. The pollutant parameters identified is Total Suspended Solid (TSS), Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Dissolved Oxygen (DO) and E.Coli. One of the polluted rivers is Wonokromo River which is located in Surabaya City, according from monitoring results Balai Besar Wilayah Sungai (BBWS) Brantas in 2021 the pollutant value in river with TSS is 484 mg/L, BOD is 15.96 mg/L, COD 23.91 mg/L, DO 3.67 mg/L, and E.coli 4.283 MPN/100 ml from the monitoring data included polluted category. Depectin model of water river conditions using the STELLA program. The results indicate that the water quality of the Wonokromo River is polluted with the parameters TSS, BOD and E. Coli, determination refers to Goverment Regulations number 22 in 2021 about “Implementation of Environmental Protection and Management” in clasification II for raw water. So Wonokromo River is not suitable as a source of raw water in that year and a policy scenario is needed to reduce water river pollution.
Solid Waste Management System in Tanjungpura University: 3Rs concept integrated with the Waste Bank
Authors: Ghandi Arifin , Susilowati Dwi , Sutrisno Hendri
Published: April 2023

Tanjungpura University is one of the State Universities in West Kalimantan. Waste management in the Tanjungpura University area still applies the old waste management paradigm. Waste management in the Tanjungpura University area still applies the old paradigm of waste management, which has an impact on environmental problems, because waste management has not been handled optimally. Therefore, it is necessary to plan a waste management system with a new paradigm that integrates the 3R concept (Reuse, Reduce and recycle) with the Waste Bank. The research data were obtained through in-depth interviews and field sampling using the SNI-19-3964-1994 method for 8 days. The results of the study show that waste generation in 2035 will be 39,035 l/day. The projected results of waste generation and waste composition form the basis for waste management system planning. The waste management system includes sorting waste at the source, designing segregated containers, designing waste collection cars, processing organic and inorganic waste, and designing 3R-based Waste Processing Site which is integrated with the Waste Bank. This plan is expected to help develop Tanjungpura University with a Green Campus concept.
Determination of Quality and Trophic Status of Cibabat Lake, Cimahi City
Authors: Wardhani Eka , Nopiyani Tri Rizki , Handiani Dian Noor
Published: April 2023

In Cimahi City, the river water is heavily polluted, and well water is not suitable for drinking water, so to anticipate the lack of clean water, the Environmental Service is planning to revitalize one of the ponds, namely the Cibabat Lake. This study’s purpose is to determine the reservoir’s condition based on water quality and trophic status. The method used for calculating water quality status is the Pollutant Index, which refers to the Decree of the Minister of Environment Number 115 of 2003 with results is 8,450, and will be 8,751 in 2022, with the water quality classified status as moderately polluted. Meanwhile, the method to assess trophic status uses the Carlson Trophic State Index (TSI) method by taking air samples for the parameters Total Nitrogen, Total Phosphate, Chlorophyll-a, and brightness which is included in the hypereutrophic category. The Cibabat Reservoir has been polluted by domestic waste based on the calculation of the potential pollutant load such as BOD, COD, TSS, Total Phosphate and Total Nitrogen in the border area is 2,219,600; 3,051,950; 2,108,620; 11,623; and 108,206 kg/day, respectively. DTA area is 1,886.660: 2,594.158; 1,792.327; 9,905; 91.975 kg/day, respectively. This is influenced by the increasing population each year.
Assessment of the Environmental Impact of Drug Products Using Life Cycle Assessment: A Case Study in a Pharmaceutical Company, Semarang
Authors: Hartini Sri , Sari Diana Puspita , Ningrum Dian Tri Kusuma
Published: April 2023

The pharmaceutical production process produces 55% greater emission intensity than the automotive industry. Along with increasing attention to the environmental impact of pharmaceutical drugs, pharmaceutical companies need to know the impact resulting from their production processes. This study analyzes the environmental impact of the anti-hangover drug production process using a Life Cycle Assessment. The analysis was carried out on 1 batch which produced 1,000,000 drugs. The scope of the gate to gate study from the initial process to the end of production. The research objective was to determine the potential impact resulting from the drug production process on the environment. The indicator measured is eco-cost, which is the cost of environmental impact calculated using the SimaPro software. This study found that the eco cost was IDR 3,931,237.65 with the largest environmental costs in the packaging process and the largest impact indicator on climate change. The biggest source of impact comes from the consumption of electrical energy. This study recommends the use of solar panels. For the energy conversion process, 80 KWp is needed with 288 solar panels and a land requirement of 0.564 Ha. This recommendation is estimated to reduce 22% percent of environmental costs.
Wastewater Treatment Plant Design for Batik Wastewater with Off-Site System Method in Ulu Gedong Sub-District, Jambi City
Authors: Purwaningrum Solikhati Indah , Syarifuddin Huwan , Nizori Addion , Wibowo Yudha Gusti
Published: April 2023

Batik is a cultural heritage of Indonesia in the form of textile crafts. The batik industry uses a lot of dyes that cause environmental pollution. The study results showed that Artisanal Small Scale Industry batik has yet to perform batik wastewater management to a technical standard. Design planning for batik wastewater management considers the conditions of wastewater discharge, dyes, characteristics of wastewater, the location to be served, and the location of Waste Water Treatment Plant. The design of the batik Waste Water Treatment Plant building is an equalization unit with dimensions of 4.6 m long, 2.3 m wide, and 4 m high, an anaerobic unit with dimensions of 10.5 m long, 4 m wide and 3.5 m high, a filtration unit with a diameter of 8 inches, 40 inches tall, control tub with dimensions of length 8 m, width 4 m, and height 3.5 m, and sludge drying bed with dimensions of length 15 m, width 15 m and height 1 m. The processing unit obtained water pollutant concentrations in the processed wastewater of 2.426 mg/L BOD, 0.543 mg/L of COD, and 0.0115 mg/L of TSS. This concentration shows that the WWTP design optimally reduce the pollutants in batik wastewater.
Optimizing Utilization of Hazardous Waste and Biomass as Solid Fuel for Co-Firing
Authors: Ahmad Fauzy Fandy , Hartati Etih , Marganingrum Dyah
Published: April 2023

Continuously high use of fossil fuels may lead scarcity of these energy sources in the future. Therefore, it is necessary to develop renewable energy to ensure its availability. One of the efforts in the development of renewable energy and the aims of this study is to examine the utilization Fly Ash (FA), Bottom Ash (BA) combined biomass sludge of Wastewater Treatment Plant (WWTP) and municipal solid waste) materials as an alternative energy source (briquette raw materials) for co-firing in textile industry boilers. Briquettes were made with a composition of 60% FABA and 40% biomass which were then varied in composition. The parameters measured were proximate, calorific value, and shatter index. The feasibility test of briquettes was carried out using a Tanner diagram, where all briquettes made can be burned as fuel. Optimum briquettes quality was measured based on the criteria according to the Minister of Environment and Forestry Regulation No. 06/2021. The results showed that the composition of three briquettes that had optimum quality and met the criteria were briquettes with composition 10%FA:50%BA:40%Biomass (variation of WWTP sludge and biomass) with a calorific value and sulfur content of 3,578 Kcal/kg   and 0,70%; 3,890 Kcal/kg and 0,82%; and 3,864 Kcal/kg and 0,96%.
Assessment of Surface Water Quality Status Using the Pollution Index Method in Tukad Badung River
Authors: Harmayani Kadek Diana , Jaya Ni Made Pertiwi , Widhiawati Ida Ayu Rai , Parahita I Gede Andy Andika , Wiryananda Ngakan Gede Agung Khrisna , Supriyani Ni Nyoman Dewi , Mahendra Daniel Rizal , Baskhara I Gusti Agung Gede Wiranata , Hutagalung Debora Sofia Fransiska
Published: April 2023

This research proposes to find out the present state of the water's purity in Tukad Badung through an examination of the Pollution Index (PI) adopted from the methodology presented by the Water Quality Index (WQI), which was presented by the Indonesian Ministry of Environment. A series of water samples were taken at three river flow points in the Denpasar City area, representing the upstream, middle, and downstream areas. The water quality parameters were determined based on the characteristics of domestic wastewater pollutant sources that are identified in watershed areas. In accordance with Regulation 22 of the Government of 2021 concerning quality standards for river water used for drinking water, the average concentrations of Total Suspended Solid (TSS), Ammonia, Biological Oxygen Demand (BOD), and Chemical Oxygen Demand (COD) parameters have exceeded quality standards. Meanwhile, the oil and grease parameter, as well as detergents, still meet quality standards. The PI at three monitoring points was obtained at 2.41 – 4.27, categorized as lightly polluted. In the future, efforts to deal with water pollution are critical to meet the downstream water quality standards used as drinking water.
Analysis of Water Quality Status in Tuntang River, Semarang Regency in 2022
Authors: Saputra Andri , Siwiendrayanti Arum
Published: April 2023

Tuntang River is a river located in Tuntang District, Semarang Regency. The study was conducted to determine the quality of river water, status of river water quality and sources of river pollution in the Tuntang River in the Upstream Segment so that steps can be taken to tackle pollution in the Tuntang River in the Upstream Segment. This research was conducted during the dry season, samples were taken during the January-June 2022 period. The quality status was assessed using the Pollution Index (PI) method. The results of the study of 2 sample points were at lightly polluted status based on Class II Quality Standards according to Government Regulation Number 22 of 2021. Based on calculations using the PI method at Point 1 were in normal conditions. Meanwhile, point 2 is in a moderately polluted condition. In the analysis using Geography Information System (GIS) there are several sources of pollution, namely, in the domestic sector, plantation sector, agricultural sector (rice fields and fields), livestock sector, and mining sector.
Organic Solid Waste Management by Producing Eco-Enzymes from Fruit Skin in Permata Tembalang
Authors: Samadikun Budi Prasetyo , Sudarno Sudarno , Pusparizkita Yustina Metanoia , Hardyanti Nurandani , Pratama Fathan Syahreza , Safitri Rahayu Puji
Published: April 2023

The Ministry of Environment and Forestry in 2020 estimates that waste dumps in Indonesia will be 67.8 million tons. However, organic waste management in Indonesia is still relatively low. The accumulation of organic waste in the landfill, which usually causes unpleasant odors and potentially cause an explosion due to the production of methane gas from natural decomposition processes, can be avoided by prioritizing waste management from the source. An alternative way to handle organic waste is make eco-enzymes because it is efficient, economical, and environmentally friendly. This is the focus of the community service team. The community service method is carried out in three stages, including the preparation stage, the implementation stage, and the final stage. The preparation stage consists of doing a module for sorting organic waste and its utilization (making eco-enzymes). The next phase consists of socialization, education, and training on sorting organic waste and making the right eco-enzymes. The final stage consists of evaluation and making a final report. The expected result after education, socialization, or training has been carried out by the community service team, the community members, especially RT 04      RW 05 Permata Tembalang, know better and understand the sorting and utilization of organic waste.
The Potential of Landfill Waste in Rembang City as Raw Material for Refuse Derived Fuel (RDF)
Authors: Hapsari Okmi , Syafrudin Syafrudin , Budihardjo Mochamad Arief
Published: April 2023

The Landoh landfillwas expired in 2022 due to the increasing amount of waste generated. The solution is to extend the service life of the landfill using the landfill mining method. The waste in the landfill is used as raw material for refuse derived fuel (RDF). The aim of the research is to find out the potential of landfill mining at Landoh landfillwhether it can be used as raw material for RDF. Primary data was taken from Landoh landfill in February 2022 with a depth of 1-2 meters and 3-4 meters from the surface of the waste generation and interviews with landfill officials. The waste samples were analyzed for waste composition, moisture content, volatile content, ash content and heating content. The waste composition is dominated by organic waste which has a large moisture content but a small caloric content. From the results of the research that the waste needs to be pre-treated (chopping and drying) for 21 days in order to fulfil the standard values of moisture content, volatile content, ash content and calorific content according to RDF raw material requirements. This method is a solution to overcoming expired landfills, reducing the volume of waste and landfill area requairements.
Nutrient Recovery from Agricultural Waste Water Using Electrocoagulation Process, A Case Study of Thekelan, Semarang, Indonesia
Authors: Budihardjo Mochamad Arief , Sudarno Sudarno , Priyambada Ika Bagus , Chegenizadeh Amin , Purwono Purwono
Published: April 2023

Eutrophication is a natural phenomenon in aquatic ecosystems that causes algae and other aquatic plants to overproduce. This process can benefit the ecology in tiny amounts, but too many nutrients can generate hazardous algal blooms and kill fish and other aquatic life. To prevent eutrophication and sustain aquatic ecosystems, agricultural waste water like microalgae production wastewater must be treated. The goal of the project is to get nitrogen and phosphorus out of the wastewater from growing microalgae, which is an agricultural waste water. One way to recover nutrients from wastewater is electrocoagulation. This procedure uses an electric current to create microscopic gas bubbles that collect and remove pollutants from wastewater. According to this study, electrocoagulation reduces phosphate and nitrate in microalgae culture wastewater. Phosphate concentration dropped by 90.20% in the 15th minute, while nitrate concentration dropped by 36.19% in the 30th minute. These reductions may be caused by struvite formation and nitrate conversion to nitrogen gas. This study demonstrates that electrocoagulation is a potential technology for recovering nutrients from agricultural waste water and reducing aquatic ecosystem eutrophication.
Potential of Heavy Metal Pollution (Cd) in the Kapuas Kecil River
Authors: Purnaini Rizki , Saziati Ochih
Published: April 2023

The Kapuas Kecil River is a river that becomes the lifeblood of the people of Pontianak in supporting their lives. It is raw water source for Municipal Waterworks, industry, fisheries, agriculture, animal husbandry, tourism, and transportation. The variety of activities carried out on the banks of the Kapuas Kecil River contributed to the occurrence of pollution by heavy metals such as Cd. Currently, the Kapuas Kecil River flow is already crowded with industrial shipbuilding activities, which are one of the contributors to Cd metal pollution in the waters. This study aims to identify the source of Cd pollutants and determine the concentration of Cd in the Kapuas Kecil River. Sampling was carried out in October at four sampling points at low tide, then compared with the allowable Cd concentration according to PP 22/2021 which is 0.01 mg/L, and the status of water quality was determined by the pollutant index method. Based on the results of the study, the Cd concentration was still below the quality standard with a value of >0.001 mg/L, and the water quality status met the quality standard.
Application of Free Water Surface Constructed Wetland for Reduction of Brantas River Pollutants
Authors: Masriyanto Popi Wahyuni , Yulistyorini Anie , Ariestadi Dian
Published: April 2023

Brantas River is a raw clean water sources that flow through Malang City. The Brantas River water is polluted due to discharging of untreated wastewater, causing a decrease in river water quality. According to these problems, exploring water resources through Brantas River water treatment is essential using Free Water Surface Constructed Wetland (FWSCW) which aims to analyze the performance and improve the water quality of the Brantas River using these wetlands. The research was conducted on a laboratory scale with control treatment and FWSCW with aquatic plants such as Pistia stratiotes, Echinodorus palaefolius, and Heliconia psittacorum. The results showed that pH and temperature were stable, with values between 7.63 to 8.53 and 23°C to 27°C. The removal efficiency of FWSCW and control in reducing turbidity was 99.53% and 98.55%, respectively, and TDS reduction was 0.56% and 2.84%, respectively, for control and FWSCW. The water quality has met the 2nd class of the water quality standards based on Government Regulation of the Republic of Indonesia No. 82 of 2001. At the same time, the efficiency of reducing BOD concentration was 89%. The results show that the FWSCW system can be used as a secondary treatment system to produce clean water.
Factors Influencing the Choice of Entrepreneurship Part of The University Graduates in Science and Management
Authors: Marouane Saadia , Rhihil Abdallah , Mouadni Maha , El Bouzidi Asmaa , El Ardi Soumia
Published: April 2023

This article aims to study the entrepreneurial intention for two categories of students who differ in their disciplinary path. The objective is to understand how Moroccan students perceive the entrepreneurial processes. We based ourselves on the theory of planned behavior, where the intention to start, a business is supposed to depend on three variables (attitudes associated with the behavior, social norms and perceptions of behavioral control). The model is tested on 735 students in the process of obtaining their university degrees from management establishments and 315 students from science and technical establishments. The results generally confirm the explanatory model of the theory of planned behavior for science students, since the three variables have the impact on entrepreneurial intention and partially for management students. The study allows us to identify the types of professional expectations that most explain the attractive of students to launch in the entrepreneurial world and the competences for successful business creation. Perhaps we have "simplified" the process of building entrepreneurial intention, which is probably more complex and which certainly requires real exploration work in continuous in the field. This article represents a guide for the organizations responsible for supporting project leaders and a vector of economic and social development, allowing the realization of added value and participating in the fight against unemployment and informal work.
Improve Netizens' Perception of The Image of Anhui-Based on The Research of Zhihu-Related Anhui Review
Authors: Jin Ying , He Min , Li Yazheng
Published: April 2023

Since the 18th National Congress of the Communist Party of China, the Party Central Committee, with Comrade Xi Jinping as its core, has attached great importance to Anhui development and has visited the six provinces of Shanxi, Henan, Anhui, Hubei, Hunan, and Jiangxi in the central region. The central region has accelerated the rise of the rise. At the two conferences of the country in 2022, General Secretary Xi Jinping proposed the "five musts," emphasizing the important position of image construction in urban development. The construction of the urban image is an important part of developing economic and cultural undertakings and the prosperity of socialist culture. The image of the city is a portrayal of multiple appearances and rich connotations in a city. It is the product of subjective blending. Whether it is a local person who feels about the city or the foreign people who know through the TV network, the mass media will affect their right impression of the city. In the new era of communication, the audience has a new opportunity to define the image of the city.
Development of a Crafted Malaysian Whistleblowing Policy Disclosure Index
Authors: Ahmad Syahrul Ahmar , Sungip Noraisah , Paino Halil , Yunos Rahimah , Hashim Fatimah
Published: April 2023

Though there are legislative provisions to protect whistleblowers, there is still no specific legislation that mandates the implementation of a standardized whistleblowing disclosure among Malaysian companies. This has led to inconsistency of whistleblowing disclosure level among local companies (Ahmad et al., 2018). This study proposes the development of Whistleblowing Policy Disclosure Index (WPDI) specifically for the Malaysian listed companies that could reflect a “best practice” model for establishing sound and comprehensive contents of whistleblowing policy disclosure. Specifically, the whistleblowing disclosure index would be developed by using the guidelines issued by the MCCG (2017), OECD (2011), and the Standards Australia (2003). These three guidelines could pave the way for the development of effective and comprehensive disclosure of corporate whistleblowing policy mainly for local scene. Hopefully, this would then assist regulators to provide effective mechanisms to promote whistleblowing as well as possibly mandates the compulsory implementation of a standardised internal whistleblowing procedure in Malaysian companies to ensure greater accountability and transparency to investors.
Speech and Language Abilities of Preschool Children Who Stutter
Authors: Petraki Eirini , Lazaratou Helen , Vlassopoulos Maria
Published: April 2023

Purpose: The purpose of this study was to examine speech and language differences between children who stutter without concomitant linguistic difficulties (CWS) and children who stutter with concomitant linguistic difficulties (CWS/CLD) on standardized tests of phonology, vocabulary and grammar. Method: Subjects were 20 children who stutter without concomitant linguistic difficulties (mean age= 5;1 years) and 21 children who stutter with concomitant linguistic difficulties (mean age= 4;9 years). All children were Greek-speaking. Each child participated initially in a 15-minute conversation with an adult. This conversational interaction was subsequently assessed to provide information pertinent to the child’s frequency and type of the speech dysfluency. Then, each child was administered standardized tests of phonology, vocabulary and grammar. Results: Results indicated that CWS and CWS/CLD did not differ in frequency and type of speech dysfluency. CWS did not show problems in developing phonology, vocabulary and grammar, while CWS/CLD lagged behind in phonology development although their vocabulary and grammar abilities were developing normally. Conclusion: Findings suggest that stuttering may appear in children with different speech and language profiles and for a subgroup of children, may be accompanied by a phonological disorder. Clinicians should take into account different aspects of speech and language when assessing and treating children who stutter and should have in mind the likelihood of comorbidity of stuttering with other developmental disorders in preschool children.
Wood as a hydrothermally stimulated shape-memory material: mechanisms of shape-memory effect and molecular assembly structure networks
Authors: Shao Ya-li , Yu Jian-fang , Liu Hui , An Yu-hong , Li Li-li , Chen Zhang-jing , Wang Xi-ming , Zhang Xiao-tao
Published: April 2023

This study aimed to evaluate the shape-memory effect (SME) of wood (Populus x beijingensis W. Y. Hsu) and identify the net-points and switches in its molecular and morphological structures. During several cycles of deformation and subsequent recovery, a high shape recovery rate and ratio were maintained. The transverse compression tests of wet and dry wood reveal that the hydrothermal coupling stimulation can considerably reduce the strength of wood. The X-ray diffraction characterization of wood under hydrothermal stimulation shows that the role of network nodes in the SME of wood is influenced by temperature. The wavenumber shifting and changes in the intensity ratio of the characteristic Fourier transform infrared peaks showed that hydrogen bonds acted as switches for the water-stimulated shape-memory behavior. By taking into account viscoelastic relaxation, a kinetic model derived from nonequilibrium thermodynamic fluctuation theory was used to describe the shape recovery process. The effects of hydration on recovery kinetics, activation, and dynamic mechanical behaviors were also studied. To explain the shape-memory mechanism of wood under hydrothermal stimulation, a hybrid-structure network model based on a single three-dimensional switch network was proposed in this study.
Study of the performance signature based ternary and quaternary III–V compounds for laser diodes in optical communication system
Authors: Ramkumar Govindaraj , Krishnamoorthi Valarmathi , Ayub Khan Ahamed Khan , Ahammad Shaik Hasane , Hossain Md. Amzad , Zaki Rashed Ahmed Nabih , Aabdelhamid Huda Said
Published: April 2023

This study outlines the performance based ternary and quaternary III–V compounds in optical communication system. We have employed aluminum dopant ratio to check the effects in the spectral and thermal performance characteristics of various structures of optical diode sources based ternary and quaternary III–V compounds. The laser diode threshold current, reflection loss, corner wavelength, and optical gain are tested under various dopant aluminum ratios. The laser diode rise time and data flow rate are examined under thermal effects and various dopant levels. The laser diode corner wavelength and reflection loss can be enhanced by the increase of aluminum dopant ratio. The basic Al
x
In1−x
Sb laser diode structure is the best candidate according to its high flow data rates in compared to other laser structures under the same thermal effects.
Copeptin levels in hospitalized infants and children with suspected vasopressin-dependent disorders: a case series
Authors: Al Nofal Alaa , Hanna Christian , Lteif Aida N. , Pittock Siobhan T. , Schwartz Jonathan D. , Brumbaugh Jane E. , Creo Ana L.
Published: April 2023

Objectives

There have been recent advances assessing copeptin levels in adults with suspected disorders of vasopressin release. Very limited data exits on copeptin levels in children and infants, especially in a critically-ill hospitalized population where hyper- and hypo-natremia are very common. Our objective is to describe the institutional experience assessing copeptin levels in hospitalized infants and children with hyper- or hypo-natremia.

Methods

We performed a single-center retrospective case series of all infants, children, and adolescents who had an ultrasensitive plasma copeptin level obtained between 2019-2021.

Results

A total of 29 critically ill patients (6 infants) were identified with 38 % of patients having copeptin levels after neurosurgical procedures for tumors or trauma. Approximately 13/17 children with hypernatremia had central diabetes insipidus (central diabetes insipidus) to diagnose CDI, A copeptin level ≤ 4.9 pmol/L resulted in an 88 % sensitivity (95 % CI 47–99 %), and 66 % specificity (95 % CI 30–93 %). Amongst those with hyponatremia levels were more variable, 8/12 children had syndrome of inappropriate antidiuresis (SIAD) with copeptin levels ranging 4.7–72.6 pmol/L.

Conclusions

While difficult to conclude due to multiple limitations, this case series highlights that typical copeptin cutoffs used to diagnose DI in adults in an ambulatory setting may also translate to a critically-ill pediatric population. Large prospective studies are needed to confirm this observation. In addition, postoperative copeptin levels could potentially be utilized as an additional marker to predict permanent from transient DI, but much larger studies are needed. Further work is needed to establish normative copeptin levels in infants and patients with SIAD.
Isolation of compounds from the roots of Ambrosia artemisiifolia and their effects on human cancer cell lines
Authors: Ferencz Elek , Spengler Gabriella , Zupkó István , Vollár Martin , Zomborszki Zoltán Péter , Kúsz Norbert , Hohmann Judit , Kovács Balázs , Csupor Dezső , Laczkó-Zöld Eszter , Csupor-Löffler Boglárka
Published: April 2023

Common ragweed (Ambrosia artemisiifolia L.) is an invasive plant in Europe with spreading use in the contemporary folk medicine. The chemical composition of the above-ground parts is extensively studied, however, the metabolites of the roots are less discovered. By multiple chromatographic purification of the root extracts, we isolated thiophene A (1), n-dodecene (2), taraxerol-3-O-acetate (3), α-linoleic acid (4), (+)-pinoresinol (5), and thiophene E (7,10-epithio-7,9-tridecadiene-3,5,11-triyne-1,2-diol) (6). The 1H NMR data published earlier for 1 were supplemented together with the assignment of 13C NMR data. Thiophene E (6), which is reported for the first time from this species, exerted cytotoxic and antiproliferative effects on A-431 epidermoid skin cancer cells, whereas taraxerol-3-O-acetate (3) and α-linoleic acid (4) had slight antiproliferative effect on gynecological cancer cell lines. Thiophene E (6) and taraxerol-3-O-acetate (3) displayed antiproliferative and cytotoxic effects on MRC-5 fibroblast cells. Thiophene E (6) exerted weak antibacterial activity (MIC 25 μg/mL) on MRSA ATCC 43300, on Staphylococcus aureus ATCC 25923, Escherichia coli AG100 and E. coli ATCC 25922 both thiophenes were inactive. Although the isolated compounds exerted no remarkable cytotoxic or antiproliferative activities, the effects on MRC-5 fibroblast cells highlight the necessity of further studies to support the safety of ragweed root.
Two approaches to extend classical MANOVA tests to the unequal covariances case
Authors: WEERAHANDİ Samaradasa , ANANDA Malwane , DAĞ Osman
Published: April 2023

This article presents two approaches to extend classical MANOVA tests to the unequal covariances case. The first approach is illustrated by extending the classical Wilks test, which is valid only when covariances are equal. Such tests will be based on exact probabilities of certain extreme regions. We will also show how tests numerically equivalent to the parametric bootstrap tests could be easily obtained without using any bootstrap sampling arguments, so that resulting p-values are also based on exact probabilities of well defined extreme regions. Being systematic approaches, by taking similar approaches, researchers should be able to derive generalized tests in MANCOVA, higher-way MANOVA, and in RM MANOVA under heteroscedasticity, in which the parametric bootstrap type approaches run into difficulties.
Modelling wind speed with a univariate probability distribution depending on two baseline functions
Authors: SİLVEİRA Fábio , GOMES-SİLVA Frank , BRİTO Cícero , JALE Jader , GUSMÃO Felipe , XAVİER-JÚNİOR Silvio , ROCHA João
Published: April 2023

Characterizing the wind speed distribution properly is essential for the satisfactory production of potential energy in wind farms, being the mixture models usually employed in the description of such data. However, some mixture models commonly have the undesirable property of non-identifiability. In this work, we present an alternative distribution which is able to fit the wind speed data decently. The new model, called Normal-Weibull-Weibull, is identifiable and its cumulative distribution function is written as a composition of two baseline functions. We discuss structural properties of the class that generates the proposed model, such as the linear representation of the probability density function, moments and moment generating function. We perform a Monte Carlo simulation study to investigate the behavior of the maximum likelihood estimates of the parameters. Finally, we present applications of the new distribution for modelling wind speed data measured in five different cities of the Northeastern Region of Brazil.
AUTONOMIA E INOVAÇÃO
Authors: Julião António Luis
Published: April 2023

O presente artigo procura investigar em que medida as práticas curriculares são inovadoras e proporcionam a melhoria dos processos de ensino-aprendizagem. Para isso, faremos uma incursão teórica sobre a autonomia e o papel do professor na gestão elástica e inovadora do currículo. Assim, privilegiámos a recolha bibliográfica e o questionário, que foram aplicados aos professores. Embora se reconheçam casos excepcionais de professores que, por ousadia própria, procuram adoptar novas formas de organizar e gerir o currículo, os resultados obtidos evidenciam algumas ambiguidades conceptuais, e permitem inferir que é ainda pouco significativo o número de professores que conhece, aproveita e constrói as suas próprias margens de autonomia, condicionando o desenvolvimento de práticas curriculares inovadoras e consequente melhoria dos processos de aprendizagem.
PROBLEMATIZAÇÃO DAS METODOLOGIAS NA EDUCAÇÃO ALIMENTAR E NUTRICIONAL
Authors: Conte Franciéli Aline , Doll Johannes
Published: April 2023

O estudo identificou e problematizou os principais métodos utilizados no trabalho de educação alimentar e nutricional no período de 2009 a 2019 através de uma busca nas plataformas CAPES e LILACS. A investigação resultou na seleção de 2 teses e 19 dissertações. Dos 21 estudos, em apenas seis identificou-se que os profissionais/educadores em nutrição utilizam de metodologias não tradicionais, contudo, as condutas e as formas de conduzir as intervenções apresentaram ainda algumas incoerências, visto que na maioria dos estudos, foram observadas ‘prescrições’, respostas prontas, aulas e oficinas verticais. Existe a necessidade de trabalhar a educação dentro da área da saúde desde a graduação, e capacitar os professores para que se atentem a um ensino-aprendizado humanizador, conscientizador e não fragmentado e depositário de informações.
DESLOCAMENTOS DISCURSIVOS E AS COMPETÊNCIAS DAS CIÊNCIAS DA NATUREZA NA BNCC
Authors: Junior Clívio Pimentel
Published: April 2023

O texto aborda as competências das Ciências da Natureza na Base Nacional Comum Curricular (BNCC) do Ensino Médio a partir de uma perspectiva discursiva pós-estrutural, visando a realização de uma leitura desconstrutiva dos seus fundamentos pedagógicos, políticos e epistemológicos. A partir da teoria do discurso de Laclau e Mouffe (2015), problematiza-se a instituição de soluções fortemente pragmáticas para o currículo, supostamente baseadas em fundamentos sólidos de como a educação e a identidade do outro devem ser para se alcançar finalidades de resolução de demandas do mundo social e do trabalho, baseadas no registro epistemológico da ciência. Defende-se que a significação utilitária do currículo e das aprendizagens produz uma economização da experiência escolar à ideia de conhecimento como um troço útil que deve servir para os estudantes se virarem como cidadãos no mundo do trabalho e da vida cotidiana, mundo esse jamais plenamente antecipável e artificialmente reproduzível no currículo.
PESQUISAS NA PANDEMIA E OS ARTEFATOS DA CIBERCULTURA
Authors: Alves Nilda , Ovelha Izadora Agueda , Mello Fernanda
Published: April 2023

Neste artigo, trabalhamos como alguns dos deslocamentos metodológicos na corrente de pesquisas nos/dos/com os cotidianos acentuados no período de pandemia. Alguns deles já existentes e outros que surgiram especialmente porque a má da distribuição da Internet pelo país e a insuficiência dos artefatos tecnológicos de docentes e discentes, colocou mais claro as diferenças abissais existentes na população brasileira quanto ao acesso à Educação e aos processos curriculares nas escolas. A análise e exposição dessas questões é feita com o apoio nas questões teórico-metodológicas com que trabalhamos: redes educativas, personagens conceituais, circulação científica, relações ‘práticasteorias’. Essa análise tem a contribuição das conversas que realizamos com textos de Certeau, Deleuze-Guattari e autores/autoras brasileiras que trabalham em pesquisas com os cotidianos.
ENTRE O RIO E O MAR
Authors: Rodrigues Juliana , Mendonça Rosa Helena , Papini Rosana Maria
Published: April 2023

Este artigo, a partir da ideia de personagem conceitual (DELEUZE), o outro necessário às criações, toma como pano de fundo um documentário sobre o rio Paraíba do Sul para tecer conversas acerca de questões artísticas, ecológicas e curriculares. Discute o uso e a potência (CERTEAU) do cinema para a educação, em sessões que se denominam cineconversas, ou seja, ‘espaçostempos’ de ‘verouvirsentirpensar’ filmes como fundamentação para trocas férteis e muitas vezes inusitadas. A proposta é, tendo como ponto de partida as redes educativas (ALVES) que formamos e em que somos formados, criar outras redes que nos permitam pensar em como questões sociais podem se transformar em questões curriculares. O texto, além de usar o filme para pensar questões curriculares, apresenta uma experiência formativa desenvolvida por uma das autoras com estudantes no âmbito curricular da educação do campo.
METODOLOGIAS EM CRUZO
Authors: Pinto Marinazia , Moraes Marcelo José Derzi
Published: April 2023

Esse artigo traz a possibilidade de se fazer e entender currículo a partir de uma metodologia, que se denomina nesse texto de metodologia do cruzo. Entende-se essa metodologia como sendo uma estratégia de construção de currículos por meio dos encontros entre subjetividades, histórias e culturas; percebendo a escola como uma comunidade em que a pluralidade se faz presente. A educação é compreendida como sendo acontecimento, no sentido derridiano dessa palavra, em que não cabem previsibilidade e cálculo; não sendo, portanto, a escola um local de se construir ou ensinar um dever ser fixo e desejável que corresponda às expectativas de um suposto mercado e da sociedade.
DOCUMENTOS CURRICULARES E SUAS INFLUÊNCIAS NO CURRÍCULO DE MATEMÁTICA NO ENSINO FUNDAMENTAL
Authors: Voltolini Luzia , Kaiber Carmen Teresa
Published: April 2023

Este artigo tem como objetivo apresentar uma discussão sobre as influências da Base Nacional Comum Curricular - BNCC e o Documento Curricular de Roraima – DCR, no currículo de Matemática do Ensino Fundamental, a partir de uma perspectiva sociocultural, tomando como subsídios os princípios que orientam esses documentos. Metodologicamente, o trabalho foi desenvolvido sob uma abordagem qualitativa e as informações foram obtidas por meio de uma análise documental, tomando como referência a BNCC e o DCR. Os resultados apontam que os documentos analisados, trazem orientações importantes para o que se propõe para o desenvolvimento do currículo na perspectiva sociocultural, especialmente sob a ótica dos seus princípios orientadores, pois sustentam novas visões de ensino e aprendizagem da Matemática, pautando-o no desenvolvimento dos estudantes em suas diferentes dimensões, garantindo a sua formação integral, com respeito à diversidade, singularidade e pluralidade,  para a inclusão social, o exercício da cidadania, do trabalho, da autonomia e da formação de uma sociedade baseada em conhecimentos e justiça social.
Student scientific circle as a necessary component of higher medical education
Authors: Larina V. N. , Kudina E. V. , Mikava K. R.
Published: April 2023

Aim. To evaluate the effectiveness of the student science club (SSC) in a medical university to prepare students for future professional activities. To achieve this aim, the task was to analyze pedagogical methods and their impact on increasing the motivation to participate in the SSC work, the emergence of interest in scientific activities, and the deepening of knowledge in outpatient internal medicine.

Material and methods. A survey of 25 SSC participants was conducted. The questionnaire was developed by the curator and graduate of the SSC. Data collection was carried out using an online survey, the form of which was created on the Google Forms basis. The questionnaire contained 14 questions regarding motivation to attend meetings, the benefits of the SSC, evaluation of the effectiveness and efficiency of classes. University graduates working in medical institutions were asked additional questions regarding the practical application of the acquired knowledge and the impact of work in the SSC on their choice of future specialty.

Results. The underlying motive for participation in the SSC work was personal scientific enrichment. Also, the majority of respondents noted the effectiveness of the club format, which includes short informative blocks and a vigorous debate. The most important aspects of the effectiveness of the SSC work have the practical significance of the acquired knowledge (average score, 10 out of 10), increased motivation to study (9,2), and improved level of theoretical training (9,1).

Conclusion. Identification of the main motivation factors and effectiveness of SSC classes can be useful for chiefs in drawing up a work plan, choosing the optimal meeting format, preparing reports, and organizing scientific work. The greatest attention in the SSC of the Department of Polyclinic Therapy should be given to clinical reviews of patients with complex diagnoses and problems in the selection of therapy, work with real examination results, including ECG, the continuity of the theoretical knowledge gained with their practical application. A significant factor in the SSC success is the development of a structure for classes that increases their effectiveness, and the creation of a favorable psychic atmosphere that helps increase motivation to attend meetings and actively participate in the work.