bluuebunny/crossref_metadata_2025 huggingface dataset:
A STUDY ON BIOCHEMICAL PARAMETERS IN ASSESSING THE SEVERITY OF ACUTE ORGANOPHOSPHORUS POISONING
Authors: BEHERA SARITA , Sahoo Satyabrata , Pattnaik Kaumudee
Published: July 2023

Objectives: Organophosphorus (OP) poisoning is an important global health issue with increasing mortality rate for every year particularly in developing countries since its overuse in agricultural activity. The present study was performed to analyze the clinical profile and biochemical parameters such as serum cholinesterase, serum creatinine phosphokinase (CPK), liver enzymes, serum amylase, lipase, serum k+, troponin, serum urea, and creatinine on day 1 for correlation with clinical severity of poisoning.
Methods: A observational study was performed on 100 cases with OP poisoning at a tertiary care center. Peradeniya OP Poisoning Scale was applied to all cases at the time of admission and the severity was designated as mild, moderate, and severe taking into account 5 vital parameters such as miosis, fasciculations, respiration rate, bradycardia, and level of consciousness and data were statistically analyzed by SPSS.
Results: Rise in clinical severity of poisoning and substantial reduction in the level of serum cholinesterase was observed. The mean serum CPK, troponin T (Trop T), amylase, lipase, bilirubin, aspartate aminotransferase, and alanine aminotransferase showed marked elevation according to the severity of OP poisoning. In addition, serum potassium levels showed decreased level as per the severity level.
Conclusion: Initial serum cholinesterase and serum Trop T are strong predictors of the clinical severity of OP poisoning.
PREDICTION OF DIFFICULT LAPAROSCOPIC CHOLECYSTECTOMY BASED ON ULTRASONOGRAPHIC FINDINGS
Authors: PK SHERINFARSANA , STANLEY JOSV
Published: July 2023

Objectives: The objective of the study is to the role of pre-operative ultrasonography (USG) abdomen to find difficulty in laparoscopic cholecystectomy.
Methods: It was a prospective observational study conducted in the Department of General Surgery, Government Medical College, Kottayam, for a period of 12 months after obtaining approval from the Institutional Review Board and Ethical Committee. A total of 94 patients who underwent elective laparoscopic cholecystectomy were randomly allotted and their pre-operative ultrasound was assessed. Pre-operative predictability of difficult laparoscopic cholecystectomy based on USG was studied.
Results: Out of 78 difficult laparoscopic cholecystectomies, 71 cases were predicted to have intra-operative difficulty with pre-operative ultrasound as per total time taken for surgery. Out of these 78 difficult cases, 68 cases were able to predict as per difficulty in dissecting GB from GB fossa. This gives a positive predictive value of 91%, which is in agreement with earlier studies. Conversion rate in our study was 9.6% of total and 11.5% of difficult cases. Those cases that were predicted pre-operatively with ultrasound to be easy were never converted to open.
Conclusion: Pre-operative USG can be used as a screening method for laparoscopic cholecystectomy as this is a valuable predictor of difficulty in laparoscopic cholecystectomy in most of the cases. It will help the surgeon to make an idea of potential difficulty that he/she can face during the intra-operative period. The most valuable assessment using the ultrasound is the gall bladder wall thickness, gall bladder contracted or not, common bile duct diameter, and stones impacted in the neck of GB.
Predictive Maintenance Strategies for Engineering Assets using Data Analytics
Authors: Khakhar Devang
Published: July 2023

Abstract: Predictive maintenance is a proactive approach to asset management that uses data analytics techniques to optimize maintenance operations. This research report examines the application of predictive maintenance strategies using data analytics in engineering asset management. This study examines the benefits, challenges, and implementation considerations of predictive maintenance in mechanical engineering. Through analysis of case studies and industry examples, this research paper provides insight into the effectiveness and feasibility of predictive maintenance strategies through data analysis to improve asset reliability, reduce downtime, and streamline maintenance operations. is intended to provide.
Development of a Mini Ginger Chopping Machine
Authors: Caguay Marjun E.
Published: July 2023

Abstract: In the Philippines, ginger processing operations, especially in small and medium-scale processing centers, require significant time, financial investment, and effort. This is primarily due to the lack of affordable and cost-effective chopping machines specifically designed for ginger processing. Consequently, the objective of the study was to develop a mini ginger chopping machine that addresses these constraints and meets the requirements of local ginger processors and workers. The machine was composed of five major parts: the hopper, chopping chamber, power transmission system, prime mover, and frame. Locally produced ginger was used as test materials for the experiments, which included three treatment speeds: 250, 350, and 450 rpm. The experiment was conducted using a completely randomized design (CRD), and the performance parameters of the machine were analyzed using an analysis of variance (ANOVA) test. Furthermore, a least significant difference (LSD) test was employed to compare the means, with a 5% significance level. The results demonstrated that the highest chopping capacity of 38.6 kg/hr was achieved at a shaft speed of 450 rpm, with a chopping efficiency of 96.13%. However, a significant portion of the device's inefficiency stemmed from the presence of unchipped materials, amounting to 2.74% of the total inputted test materials. The majority of the product sizes ranged from 2 to 4 mm, indicating consistency in the chopping process. A cost analysis revealed that the machine needed to process a total of 649.5 kg of ginger to reach the breakeven point, considering a custom rate of Php 2/kg. With an initial investment cost of Php 8,000, the machine could recoup this investment in just 3.36 months (equivalent to 74 working days), and additionally provide a net income of Php 21,641.55 per year to ginger processors.
Transformational and Instructional Leadership in Cross-Thematic Teaching
Authors: Gaitanidou Athanasia , Laios Athanasios , Derri Vassiliki , Chatzoudes Dimitrios
Published: July 2023

Over the last decades, rigorous research has been carried out concerning the most appropriate leadership style of school principals and the two basic conceptual models of transformational and instructional leadership. However, the practices and behaviours of principals as they affect the successful implementation of cross-thematic integration have not been sufficiently explored. This article examines the relationship between the factors’ “transformational leadership” and “instructional leadership” for enhancing cross-thematic teaching. Quantitative empirical research was conducted on a sample of 251 principals of Greek primary schools. The results reveal a positive and statistically significant relationship between the two main factors of this study.
RésuméAu cours des dernières décennies, des recherches rigoureuses ont été menées sur le mode de direction qui serait le plus approprié pour les directeurs d’école ainsi que sur les deux modèles conceptuels de base que sont le leadership transformationnel et le leadership pédagogique. Cependant, l’exploration n’a pas été suffisante en ce qui a trait aux pratiques et comportements des directeurs ayant un effet sur la mise en place réussie de l’intégration multithématique. Cet article examine le rapport entre les facteurs « leadership transformationnel » et « leadership pédagogique » qui permettrait d’améliorer l’enseignement multithématique. Pour ce faire, une recherche empirique quantitative a été menée sur un échantillon de 251 directeurs d’écoles primaires en Grèce. Les résultats révèlent un rapport positif et statistiquement significatif entre les deux facteurs principaux de cette étude.
Keywords / Mots clés : school leadership, transformational leadership, physical education, cross-thematic teaching, structural equation modelling (SEM), Greece / leadership à l’école, leadership transformationnel, éducation physique, enseignementmultithématique, modélisation d’équations structurelles, Grèce
RME-based local instructional theory for translation and reflection using of South Sumatra dance context
Authors: Rawani Dewi , Putri Ratu Ilma Indra , Zulkardi  , Susanti Ely
Published: July 2023

A learning trajectory as a sequence of mathematical activities that could facilitate the growth of students’ understanding of learning goals. This research aimed to produce an instructional sequence to learn the concepts of translation and reflection and to investigate how students develop their understanding informally using a South Sumatra dance context. The research employed the design research method, which consisted of three stages: preliminary design, design experiment (pilot experiment and teaching experiment), and retrospective analysis. This research involved six students who have the high, medium, low capability at the first cycle and 32 students ninth graders at the second cycle at Junior High School 1 Palembang. Data from observations, tests, interviews, and documentation were analyzed descriptively. The tests used were aimed to determine the improvement made by the students; while the classroom observations, interviews, and documentations were used to develop the local instructional theory. This study produced a learning trajectory with three activities include: the students watched a dance video to describe the dancer’s’ positions in relation to floor tiles; the students were asked to determine the starting points of the dancers in Cartesian coordinates to learn concepts; and the students developed a formal concept based on their own knowledge.
ANÁLISE DA CONCENTRAÇÃO ESPACIAL E DA ESPECIALIZAÇÃO DA PRODUÇÃO E DO ABATE DE SUÍNOS NO ESTADO DO RIO GRANDE DO SUL, BRASIL
Authors: Galvani Juliane Webster de Carvalho , Schultz Glauco , Waquil Paulo Dabdab
Published: July 2023

A suinocultura é uma atividade importante para o Rio Grande do Sul (RS) e a cadeia produtiva da carne suína estadual, a qual possui expressivo número de empregados vinculados, pode obter vantagens competitivas com a formação de clusters. Assim, este artigo busca analisar a concentração espacial da produção e do abate de suínos comerciais no RS, bem como identificar as microrregiões estaduais especializadas nas referidas atividades, com base na variável emprego formal, visando mapeamento preliminar de clusters. Como metodologia, utilizou-se a coleta de dados secundários sobre a produção e o abate de suínos comerciais, estatística descritiva, Quociente Locacional (QL) e o Coeficiente de Gini Locacional (GL). Os resultados indicam que as atividades de produção e abate de suínos comerciais no RS estão geograficamente concentradas, apresentando GL de 69% e 74%, respectivamente. Quanto à especialização das atividades, conforme QL calculado, das 35 microrregiões analisadas, 14 (40%) apresentaram QL > 1 para a atividade de produção de suínos comerciais e 10 (28,5%) apresentaram QL > 1 para a atividade de abate de suínos. Conclui-se, que as atividades de produção e abate de suínos comerciais são relativamente concentradas no RS, demonstrando a existência de especialização do emprego na economia de microrregiões estaduais específicas.
DO ESTADO NEOLIBERAL AO SOCIAL: PARA REPENSAR O PAPEL DO ESTADO DIANTE DA PANDEMIA DA COVID-19
Authors: Freitas Antônio Alberto , Pereira de Brito Maria Alane , Silva Magda Costa , Do Nascimento Verônica Salgueiro , Chacon Suely Salgueiro
Published: July 2023

A crise desencadeada pela pandemia da Covid-19 atraiu a atenção de países de todos os continentes e tem alterado as relações políticas e econômicas na sociedade, gerando questionamentos sobre o sistema capitalista enquanto sistema social predominante. Desse modo, este estudo teve por objetivo apontar considerações sobre o neoliberalismo e o Estado de Bem-Estar Social nas ações governamentais, propondo reflexões sobre o papel do Estado diante dos impactos causados pela pandemia do coronavírus. Para tal, é utilizada uma pesquisa teórica de exploração bibliográfica com críticas pontuais dos/as autores/as. Neste estudo, considera-se que o papel do Estado, quando amparado no Estado Democrático de Direito, exige inspirações mais próximas do Welfare State, por compreender a formulação de políticas públicas na garantia dos direitos sociais. Além disso, nota-se a fragilidade do modelo neoliberal para países como o Brasil, sendo um modelo que reduz drasticamente a atuação estatal em favor do setor privado e, consequentemente, das desigualdades sociais. Portanto, uma Constituição Cidadã se mostra mais necessária que uma Liberal, evitando bases que se afastam do propósito de uma igualdade de cidadania.
ANÁLISE DA TRANSIÇÃO FLORESTAL NA AMAZÔNIA LEGAL
Authors: Morales Lucas , Bragagnolo Cassiano
Published: July 2023

A Teoria da Transição Florestal (TTF) busca analisar o fenômeno de longo prazo no qual o declínio da área de florestas é substituído pela regeneração florestal, tendo-se assim uma curva de TTF com formato semelhante a um “U”. Essas mudanças na cobertura florestal estão relacionadas a alocação ótima do uso da terra pelos agentes, que pode ser afetada por políticas, falhas de mercado e fatores externos. Desta forma, utilizou-se do modelo de dados em painel para identificar os principais fatores determinantes nas mudanças da proporção de área florestal para os municípios da Amazônia Legal no período de 2005 a 2020. Para isso, verificou-se diferentes indicadores demográficos, econômicos e de políticas ambientais. Os resultados obtidos pela pesquisa indicam que os indicadores de PIB per capita provocam, a longo prazo, uma contribuição com o aumento da proporção florestal, enquanto a densidade demográfica, a proporção de PIB agrícola e o valor médio de multas são negativamente relacionados com as áreas florestais. Verificou-se, portanto, a possibilidade de uma curva em formato de “U” como indicado pela TTF.
FATORES ASSOCIADOS A CONFIGURAÇÃO DOS CANAIS DE COMERCIALIZAÇÃO AGROALIMENTARES NA MICRORREGIÃO DE CACHOEIRA DO SUL
Authors: Camara Simone Bueno , Noremberg Schubert Maycon , Schneider Sérgio , Brandão Janaína Balk , Da Silva Gustavo Pinto
Published: July 2023

O presente trabalho objetivou investigar os fatores associados a configuração dos canais de comercialização agroalimentares de frutas e hortaliças na microrregião de Cachoeira do Sul. Para a operacionalização da pesquisa teve 129 agricultores entrevistados, os quais tinham atividades produtivas de frutas e hortaliças, ou mesmo às duas atividades. Os dados foram submetidos a estatística descritiva, e análises de Fatorial e Cluster. Os principais fatores que configuram a comercialização agroalimentar neste território são as atividades de maior renda e produtos majoritários. A partir desta análise inicial, obteve-se três grupos. O primeiro grupo possui 69 agricultores e apresenta uma dinâmica de especialização produtiva, vinculada ao abastecimento de supermercados e feiras locais. O segundo grupo (47 agricultores), apresenta uma dinâmica de diversificação produtiva, apresentando canais de comercialização locais, no entanto, não é a principal atividade praticada. O terceiro grupo (13 agricultores) tende a buscar uma maior diversificação nos canais de comercialização e possui concentração de renda através destas atividades. Concluímos que as configurações dos canais de comercialização agroalimentar estão condicionadas às características dos territórios alicerçados, no entanto, a concentração de renda em uma atividade comercial leva a uma convencionalização produtiva e comercial.
An Efficient Implementation for Linear Convolution with Reduced Latency in FPGA
Authors: Xue Dingli , DeBrunner Linda , DeBrunner Victor , Huang Zhen , Xiao Ying , Zhang Zhaohang
Published: July 2023

A recently developed linear convolution filter based on Hirschman theory
has shown its advantage in saving computations compared with other
convolution filters. In this paper, we ameliorate the Hirschman
convolution filter with the usage of split-radix algorithm and explore
its latency-reduced advantage for the first time. We present a
comparison of hardware resource in FPGA for the proposed Hirschman-based
filter and other convolution filters. Simulation results indicate that
the split-radix Hirschman convolution filter achieves a promising
reduction in latency by averagely 18.15% with an acceptable power
consumption rise, compared with the main competitor using extended
SRFFT. In the case of device capacity limited, the proposed Hirschman
convolution filter is still computationally attractive as it performs
small-size originator function, instead of larger Fourier transform
required by other convolution filters.
Genomic epidemiology of the main SARS-CoV-2 variants circulating in Italy in 2020 and 2022 period
Authors: Bergna Annalisa , Lai A. , Ventura Carla Della , Bruzzone Bianca , Weisz Alessandro , d'Avenia Morena , Testa Sophie , Torti Carlo , Sagnelli Caterina , Menchise Angela , Brindicci Gaetano , Francisci Daniela , Vicenti Ilaria , Clementi Nicola , Callegaro Annapaola , Rullo Emmanuele Venanzi , Caucci Sara , Pace Vanessa De , Orsi Andrea , Brusa Stefano , Greco Francesca , Letizia Vittoria , Vaccaro Emilia , Franci Gianluigi , Rizzo Francesca , Sagradi Fabio , Lanfranchi Leonardo , Coppola Nicola , saracino Annalisa , Sampaolo Michela , Ronchiadin Silvia , Galli Massimo , Riva Agostino , Zehender Gianguglielmo
Published: July 2023

Since the beginning of the pandemic, SARS-CoV-2 has shown a great
genomic variability, resulting in the continuous emergence of new
variants that has made their global monitoring and study a priority.
This work aimed to study the genomic heterogeneity, the temporal origin,
the rate of viral evolution and the population dynamics of the main
circulating variants (20E.EU1, Alpha and Delta) in Italy, in August
2020-January 2022 period. For phylogenetic analyses, two datasets were
evaluated for each variant, the former comprising international genomes
and the latter focusing on clusters containing at least 70% of Italian
sequences. The international dataset showed 26 (23% Italians, 23%
singleton, 54% mixed), 40 (60% mixed, 37.5% Italians, 1 singleton)
and 42 (85.7% mixed, 9.5% singleton, 4.8% Italians) clusters with at
least one Italian sequence, in 20E.EU1 clade, Alpha and Delta variants,
respectively. International clusters presented tMRCAs between
13/06/2020-27/07/2021. R values showed the highest
level between May-June until autumn 2020 in 20E.EU1 clade. The Alpha
variant showed an increase in the R in December 2020,
when the highest mean value was estimated. Delta variant presented two
peaks: the first between March-May, and the second between June-July
2021. The present work highlighted a different evolutionary dynamic of
studied lineages with a high concordance between epidemiological
parameters estimation and phylodynamic trends suggesting that the
mechanism of replacement of the SARS-CoV-2 variants must be related to a
complex of factors involving the transmissibility, as well as the
implementation of control measures, and the level of cross-immunization
within the population.
Central Nervous System Metastases in Pediatric Patients with Ewing Sarcoma
Authors: Slatnick Leonora , Cost Carrye , Garrington Timothy , Donaldson Nathan , Macy Margaret
Published: July 2023

Metastatic central nervous system (CNS) involvement is rare in pediatric
primary extracranial Ewing sarcoma (ES). We describe the incidence and
course of six patients with extracranial ES who developed metastatic CNS
lesions treated at a single institution. Median time to CNS disease
detection was 16.3 months (10.0-28.3 months). Event free and overall
survival after CNS disease detection were 1.9 months (0.4-10.3 months)
and 4.6 months (1.1-50.9 months), respectively. One patient was alive at
the time of analysis. Clinical status and ability to obtain disease
control should be considered when making decisions regarding aggressive
interventions in these patients with poor prognosis.
Association of catalase promoter haplotype and catalase level in the X-ray employments
Authors: Najjar Zahraa Sami Razzaq , Al-Saygh Zainab Mahdi Jasim , Al-Terehi Mona N.
Published: July 2023

the current study aims to detect Association of catalase promoter
haplotype and catalase level and its relation with ROS in the X-ray
employments , the results show that the mean of employments age
was (36.90±2.330) and (39.23±0.06760) for control group , The
level of CAT showed significant reduction in X-ray employments group
(0.701±0.067) (p= 0.000), and non-significant differences observed in
both groups that have approximately same results in ROS levels (p=
0.810), The correlation between CAT level and different work times in
the X-ray employments group show inverse correlation with work time per
day, and positive association with other times of working in
non-significant differences, belong to ROS there was significant inverse
correlation with work time per day and non-significant inverse relation
with direct exposure per day and per week, the (CAT -89A>T)
haplotypes detected using PCR-SSCP technique, the results show two types
of haplotypes (single and double haplotypes) a strong association of
double haplotypes with employments group (p= 0.000) was observed. The
results concluded that there was significant reduction of CAT level and
(CAT -89A>T) haplotypes with group exposed to X-ray
radiation.
Fatigue life prediction of mistuned steam turbine blades subjected to deviations in blade geometry
Authors: Mashiachidi Makgwantsha Hermelton , A Dawood Desai
Published: July 2023

The steam turbine blades are subjected to steam flow bending,
centrifugal loading, vibration response, and structural mistuning. These
mentioned factors significantly contribute to the fatigue failure of the
steam turbine blades. Low-Pressure (LP) steam turbines experience
premature blade and disk failures due to the stress concentrations at
the blade root area of its bladed disk.
This study of the
mistuned steam turbine blades subjected to variation in blade geometry
will be of great significance to the electricity generation industry. A
simplified, scaled-down mistuned steam turbine bladed disk model was
developed using ABAQUS finite element analysis (FEA) software.
Acquisition of the vibration characteristics and steady-state stress
response of the disk models was performed through FEA. Such studies are
very limited.
Thereafter, numerical stress distributions were
acquired, and the model was subsequently exported to Fe-Safe software
for fatigue life calculations based on centrifugal and harmonic
sinusoidal pressure loading. The vibration characteristics and the
response of the variation steam turbine geometric blade was conducted.
The FEA natural frequencies compared well with published literature of
the real steam turbines indicating reliability of the developed FEA
model.
The study found that the fatigue life is most sensitive to
changes in blade length, followed by the width, and then the thickness,
in this order. The analytical life cycles and Fe-Safe software shows the
percentage difference of less than 4.86%. This concludes that the
developed numerical methodology can be used for real-life mistuned steam
turbine blades subjected to variations in blade geometry.
Inadvertent injection of Ciprofloxacin instead of ropivacaine through epidural catheter
Authors: Fuzier Régis , Salvignol Geneviève , Ferron Gwenaël , Lacroix Carine , Izard Philippe
Published: July 2023

Patient harm is often due to medication errors related to neuraxial and
peripheral misconnection. We report a case of inadvertent injection of
ciprofloxacin into the epidural space and discuss the strategies that
could prevent such an incident. An adult patient presented a recurrence
of an ovarian cancer. The recent discovery of an intrabdominal
recurrence on CT-scan led us to propose a new surgical procedure. A
thoracic epidural analgesia was performed prior to general anesthesia.
Postoperative pain was controlled with patient-controlled epidural
analgesia (PCEA) with ropivacaine-epinephrine. During the first night,
abdominal pain appeared. During the second day, a nurse discovered that
the bag connected to the pump contained ciprofloxacin and not
ropivacaine. After aspiration of 2.5 ml sent to laboratory for analysis,
the epidural catheter was removed. The investigation revealed the
different causes leading to such an error. Three days after, the patient
returned home, without any adverse symptom. This is the first report of
the inadvertent administration of ciprofloxacin into the epidural space
via a patient-controlled epidural analgesia technique. As there is no
effective treatment for such errors, we discuss the neurological risk of
ciprofloxacin and prevention strategy mainly based on organizational and
human factors.
A proteogenomic analysis and use of an array of genome assemblies to scout out new virulence factors---a case of Paenibacillus larvae
Authors: Erban Tomas , Sopko Bruno
Published: July 2023

High-throughput proteomics is an effective methodology for identifying a
variety of virulence factors of pathogens. Proteomic data are commonly
evaluated against annotated sequences present in publicly available
database repositories. A proteogenomic approach can be used if annotated
sequences are not available or to identify novel proteins/peptides.
However, a single genome is commonly utilized in proteomic and
proteogenomic analyses. We pose the question of whether utilizing a
number of different genome assemblies of a bacterial pathogen would be
beneficial. Here, we used previously obtained shot-gun label-free
nano-LC‒MS/MS data of the exoprotein fraction of four reference ERIC
I–IV genotypes of Paenibacillus larvae and evaluated them against
publicly available annotated sequences (from NCBI-protein, RefSeq,
UniProt) together with an array of protein sequences generated using a
six-frame direct translation of 15 genomic assemblies available in
GenBank. The wide search through 18 database components reliably
identified 453 protein hits. UpSet analysis categorized the hits into 50
groups based on the success protein identification by databases. The
relatively high variability in successful identification among the
genome assemblies facilitated the mining of markers based on uniqueness
and contrasting results prior to considering proteome differences. Data
evaluation provided novel and interesting markers that can be studied
further.
Developing thermally stable beverage emulsions using mildly fractionated pea proteins
Authors: Devaki Neksha , Ghosh Supratim
Published: July 2023

The presence of insoluble components greatly minimizes the potential
application of pulse proteins in beverage emulsions. Therefore, pea
protein concentrate was mildly fractionated by aqueous centrifugation at
4,000g for 1 min to recover a soluble fraction (71% protein yield),
which was then used to develop 5% oil-in-water emulsions using a
high-pressure homogenizer. Emulsion stability was tested by heat
treatment (90°C, 30 min) in the presence of NaCl (0-1M) at pH 7.0 and
2.0. Stability increased upon adding salt at pH 7, while at pH 2,
proteins and droplets aggregated. Heat treatment led to extensive
aggregation at both pH values due to denaturation and aggregation of
proteins at the oil droplet surface, which was further worsened by salt.
To prevent thermal destabilization, the proteins were heat-treated at
75°C for 30 min for partial denaturation before emulsification under hot
conditions. The heat-treated protein-stabilized emulsions at pH 7 had
superior thermal stability at all salt concentrations without
aggregation. However, a similar improvement in stability was not
observed at pH 2. Pre-heating the soluble protein exposed the
hydrophobic patches, leading to better adsorption on the droplet
surface, which did not show additional aggregation upon further heating
the emulsions at pH 7. The heat-treated protein-stabilized emulsions
showed about a 44% drop in lipid digestibility compared to the original
emulsions. The proposed approach could be a valuable addition to the
utilization of pea proteins in developing beverage emulsions that could
withstand the heat treatment used during food processing.
Candida zeylanoides QU33: process for biodiesel production
Authors: ROSA Priscila Dallé , MATTANNA Paula , RAMIREZ-CASTRILLON Mauricio , FLORES Simone , Valente Patrícia
Published: July 2023

Biodiesel production is increasing worldwide to supply a demand for
renewable, environmentally-friendly fuels. In this sense, microbial oils
appeared as potential feedstock for biodiesel production with scientific
and commercial interest. While yeast oils have been studied for decades,
recent years showed literature suggesting optimization of cultivation
processes as a good strategy to improve lipid accumulation in oleaginous
yeasts. Some factors, like carbon nitrogen (C/N) ratio, pH and
temperature are considered as the main parameters that affect the
production of microbial oil. This study aimed to improve the
optimization of cultivation process through multivariate analysis,
increase the lipid accumulation and transform the condition
non-oleaginous to an oleaginous condition in Candida zeylanoides
QU 33. For optimization, response surface methodology was applied, using
the levels of the variables temperature (20-35ºC), pH (2.0 to 6.0), and
glucose concentration (10-40 g/100mL). The results showed two adjusted
models to improve biomass production and lipid yield in C.
zeylanoides QU 33, where temperatures lower than 28ºC, and glucose
concentrations greater than 25% are favorable for the accumulation of
lipids. The concentrations of glucose lower than 15% were unfavorable.
The best conditions were observed in the experiment at 27.5 °C, pH 6 and
25% (w/v) glucose, with a lipid yield of 0.2 g/L and lipid content of
12.42% (g/g). Besides the unsatisfactory effort to change the
oleaginicity condition for C. zeylanoides QU 33, our results
confirmed the hypothesis to use this strain as a model of lipid
metabolism for non-oleaginous yeast.
Examination of Stirling engine parameters effect on its thermal efficiency using PROSA software
Authors: Rabhi Louiza , El Hassani Hind , Boutammachte Noureddine , Khmou Ahmed
Published: July 2023

This paper uses second-order software for evaluating five Stirling engine parameter?s effect on its performance to select an appropriate configuration with optimal dimensions for its use in a concentrated solar power plant. Appropriate configuration, heater shape, bundle tube heat exchanger size, and regenerator type and geometry are studied. Results show that alpha type Stirling engine is the most suitable for high temperature differences, U-shaped tubes are advantageous in combining good efficiency and fewer pressure losses. Shortening inner diameter and increasing U-shaped tubes number is a good strategy to increase engine efficiency also an increase in tubes length generates a reduction in engine efficiency. Regarding the regenerator, the wire mesh regenerator presents a good compromise between minimum pressure drop and heat losses and provides better engine efficiency. For its size, better efficiency is obtained for a thicker mesh.
Hvordan god rekrutteringspraksis kan hindre destruktiv ledelse og fremme samskapende ledelse
Authors: Moe Helene Tronstad
Published: July 2023

The purpose of the chapter is to increase the understanding of how recruitment practices affect management practices. To explore the consequences of hiring inadequate managers, the author poses the following three research questions: 1) Why are unqualified candidates employed in management positions? 2) What are the consequences of poor managerial recruitment at a micro and macro level? 3) How can the incidence of poor managerial recruitment be reduced? Through the empirical generalization method, empirical causal models are developed to describe the overall mechanisms and processes in each of the three research questions. The author develops a conceptual analysis and system perspective of inadequate recruitment practices and co-creative management practices.

Success in the leadership role will always be a function of both individual and contextual conditions. Thus, in recruitment and selection it is crucial that the context in which the manager is to perform the leadership role is analyzed, and that this work is considered an integral part of the company’s strategic investments. Recruitment and selection of leaders requires that contextual characteristics and considerations are explored and emphasized. Such leadership practice contributes to a healthy working environment, increased productivity, lower turnover, and positive employer branding.
Sunn selvledelse – fra selvevaluering til resultater
Authors: Bjerke Rune
Published: July 2023

The purpose of this chapter is to present health-promoting self-leadership as a health-preserving tool for self-development. This study is based on an explorative approach and qualitative data, although its preliminary theoretical framework is based on existing theory. Health-promoting self-leadership is proposed to consist of value and behavior oriented, self-efficacy oriented, and energy oriented self-leadership in order to strengthen mental fitness, self-efficacy beliefs and performance. As a semester project (home exam), 54 executive MBA students (managers) were instructed to test and comment on their self-leadership practices in a final report. The qualitative data was based on content analysis of the students’ reports, tables, notes, diaries, training programs, and journals describing individual practices and their self-development processes. The steps in the process consist of self-evaluation, prioritized development areas, goals, types of exercises/training, results, and reflections, as determined by the students themselves. The findings, based on aggregated data at group level, support the theoretical framework and showed that the self-development processes and practices of self-leadership were very valuable for almost all of the management students.
Penerapan Metode Diskusi untuk Meningkatkan Hasil Belajar Siswa Kelas III Sekolah Dasar
Authors: Sudarsih Ni Luh Gede
Published: July 2023

Penggunaan metode ceramah berpengaruh terhadap keaktifan serta rendahnya hasil belajar siswa. Penelitian ini bertujuan untuk meningkatkan hasil belajar tematik siswa setelah diterapkan metode diskusi. Jenis penelitian ini adalah penelitian tindakan kelas dalam pelaksanaannya dilakukan dalam 2 siklus. Setiap siklus terdiri dari empat tahap yaitu tahap perencanaan, tahap pelaksanaan, tahap observasi/evaluasi dan tahap refleksi. Subjek penelitian yang digunakan adalah siswa yang jumlahnya 21 orang yang terdiri dari 15 orang siswa laki-laki dan 6 orang siswa perempuan. Metode pengumpulan data dalam penelitian ini menggunakan metode tes untuk mengumpulkan data hasil belajar siswa. Data yang terkumpul kemudian dianalisis menggunakan analisis statistik deskriptif dan deskriptif kuantitatif. Berdasarkan hasil analisis data dapat disimpulkan bahwa penerapan metode diskusi dapat meningkatkan hasil belajar tematik siswa. Hal ini terlihat dari rata-rata hasil belajar siswa pada prasiklus dengan rata-rata 63,81 (kategori kurang), siklus I dengan rata-rata 73,81 (kategori cukup), meningkat menjadi lagi menjadi 79,01 (kategori baik). Sehingga kedepannya diharapkan guru mampu memilih metode yang sesuai dengan karakteristik siswa agar dapat meningkatkan keaktifan dan hasil belajar siswa.
Peningkatan Prestasi Belajar Matematika dengan Model Problem Based Learning
Authors: Mertayasmini Made
Published: July 2023

Hasil rata-rata prestasi belajar masih rendah. Hal tersebut diakibatkan karena dalam pembelajaran tersebut guru masih menggunakan metode ceramah yang membuat peserta didik bosan dan mengantuk. Penelitian ini bertujuan untuk menganalisis peningkatan prestasi belajar matematika dengan model Problem Based Learning. Penelitian ini menggunakan metode Penelitian Tindakan Kelas (PTK) dengan 4 tahapan yaitu: perencanaan (Planning), pelaksanaan (Acting), pengamatan (Observing), dan refleksi (Reflecting). Pengumpulan datanya melalui tes, yang selanjutnya dianalisis dengan menggunakan metode deskriptif kuantitatif. Subjek dalam penelitian yang terdiri dari 13 siswa perempuan dan 21 siswa laki-laki di SMA. Data disajikan dalam bentuk persentase ketuntasan belajar dan prestasi belajar matematika. Hasil yang diperoleh dari penelitian ini adalah adanya perkembangan hasil yang sangat positif. Pada awalnya ketuntasan belajar sebesar 44,12% dengan rata-rata 56,72, selanjutnya setelah pelaksanaan siklus I ketuntasan belajar meningkat menjadi  64,71% dan rata-rata 62,34 kemudian ketuntasan belajar 76,47% dengan rata-rata 78,64 pada siklus II. Dari siklus I ke siklus II terjadi juga peningkatan, maka kesimpulan yang diperoleh dari penelitian ini adalah model Problem Based Learning dapat meningkatkan prestasi belajar matematika pada kelas X MIPA 1 SMA.
PhET Interactive Simulations Berbasis Inquiry Terbimbing Untuk Meningkatkan Aktifitas dan Hasil Belajar Kimia Pada Materi Asam Basa
Authors: Warsiki Anak Agung Putri
Published: July 2023

Setiap teknik penilaian yang digunakan harus mengikuti prosedur operasional. Apabila pelaksanaan teknik tersebut tidak memenuhi prosedur operasional maka pendidik memilih cara lain sebagai alternatif untuk memenuhi penilaian tersebut agar  pembelajaran tetap berjalan sesuai program. Salah satu alternatif untuk keterampilan laboratorium Kimia dapat menggunakan Phet Simulations chemistry yaitu PhET Interactive Simulations. Tujuan penelitian ini untuk menganalisis penggunaan PhET interactive simulations berbasis inquiry terbimbing sebagai alternatif keterampilan laboratorium untuk meningkatkan aktifitas dan hasil belajar kimia pada materi asam basa siswa kelas XI. Jenis penelitian ini merupakan penelitian tindakan kelas dengan dilaksanakan sebanyak 2 siklus. Subjek pada penelitian ini adalah siswa Kelas XI berjumlah 31 orang. Data hasil belajar dikumpulkan dengan menggunakan metode tes Data dianalisis menggunakan statistik deskriptif kuantitatif. Hasil penelitian menunjukkan nilai hasil belajar siswa mengalami kenaikan sebesar 5,74% dari kondisi awal sedangkan nilai keterampilan siswa pada unjuk kerja mengalami kenaikan 6,85%  dari keadaan awal. Hasil simulasi siklus II menunjukkan terjadi kenaikan 6,48% dari siklus I sedangkan nilai keterampilan siswa mengalami kenaikan sebesar 12,57% dari siklus I. Pada siklus II terlihat lebih nyata perubahan nilai siswa. Simpulan penelitian yaitu penggunaan PhET Interactive Simulation sebagai alternatif keterampilan Laboratorium dapat meningkatkan aktifitas dan hasil belajar pada pembelajaran Kimia siswa Kelas XI.
Model Problem Based Learning Berbantuan Media Sederhana untuk Meningkatkan Hasil Belajar Matematika Siswa Kelas V SD
Authors: Sariasih Ni Putu
Published: July 2023

Hasil belajar matematika siswa masih rendah. Hal ini disebabkan karena siswa kurang fokus dalam memahami materi yang disampaikan guru serta kurang termotifasinya siswa dalam mempelajari materi yang diberikan. Penelitian ini bertujuan untuk menganalisis model pembelajaran problem based learning berbantuan media sederhana untuk meningkatkan hasil belajar matematika siswa kelas V Sekolah Dasar. Jenis penelitian ini merupakan penelitian tindakan kelas yang dilaksanakan dalam 2 siklus. Rancangan masing-masing siklus terdiri dari perencanaan, pelaksanaan, observasi/evaluasi dan refleksi. Subjek penelitian yang digunakan adalah siswa kelas V SD yang jumlahnya 27 orang. Data dianalisis menggunakan statistik deskriptif. Berdasarkan data yang diperoleh hasil belajar siswa pada prasiklus dengan rata-rata 60,37 (kategori kurang), siklus I dengan rata-rata 68,52 (kategori cukup), meningkat lagi menjadi 78,68 (kategori baik) pada siklus II. Hasil tersebut menunjukkan penerapan model pembelajaran problem based learning berbantuan media sederhana dapat meningkatkan hasil belajar Matematika siswa kelas V SD. Implikasi penelitian ini diharapkan guru selalu memfasilitasi siswa dalam menerapkan model PBL, sehingga pembelajaran menjadi efektif, sehingga hasil belajar matematika siswa dapat meningkat.
The Analysis of Taboo Language as a Form of Racial Discrimination on Blackkklansman Film by Spike Lee
Authors: Pradnyana Komang Geni
Published: July 2023

This study aimed at identifying the types and meaning of taboo languages which were considered as racial discrimination on the film entitled BlacKkKlansman. This study used textual analysis to analyze the subject as a text where it could be understood and got the meaning. The source of data of this study was film entitled BlacKkKlansman. Batistella stated that there were four types of taboo language namely; epithet, profanity, vulgarity and obscenity. To get the meaning the taboo language the data was analyzed using denotation and connotation by Barthes. Denotation used to get the literal meaning and connotation for secondary meaning. This study found 4 types of the taboo language with 52 total data. The data were consisted of 20 epithet data, 11 profanity data, 10 vulgarity data and 11 obscenity data. In conclusion, the meaning of the taboo language was a form of racial discrimination towards certain group of race.
21st-Century Skills Implementation in Teaching English at Primary School
Authors: Kristyaningdih Ni Komang , Padmadewi Ni Nyoman , Sulistia Dewi Ni Luh Putu Eka , Artini Luh Putu
Published: July 2023

This study aimed to analyze the implementation of 21st-century skills in teaching English at primary schools, such as in Public and Private Schools. This study used mixed method research design, especially the exploratory mixed methods designs. This study was taken place in primary schools in Karangasem Regency. There were 3 schools as the representative of Public Primary schools in Karangasem Regency, such as SDN 1 Kubu, SDN 4 Dukuh and SDN 4 Tulamben. Besides, the representative of Private Primary school was SD Insan Mandiri. Eight teachers were selected using a convenient sampling method. The instruments used in this study were questionnaires, observation, and interview guides. It was found the English teachers in the primary schools in Karangasem Regency were not ready in implementing 21st-century skills in the schools since there were several skills have not been implemented in the lesson plan and assessment. Meanwhile, all skills have been implemented in the teaching and learning process. It can be concluded that 21st-century skills in the primary schools were not implemented well.
Private and Public English Teachers' Readiness in Implementing 21st Century Skills at Primary Schools
Authors: Pujana Dw Gede Partiwa
Published: July 2023

The teachers in this era have an essential role in implementing 21st-century skills to the students. The teachers need to be ready and understand the skills 21st century. Thus, this study intends to investigate the primary school teachers' readiness in implementing 21st-century skills, specifically in teaching English. The readiness of teachers can assess from their lesson plan, teaching and learning process and assessment. The sequential embedded mixed-method used as the method of this study. In collecting the data, questionnaires and observation were used to obtain the data and supported by interviews. The data showed that the result of the questionnaires related to the teachers' readiness in implementing the 21st-century skills was high. However, the observation result showed low insertion of the skills of the 21st century conducted by the teachers. Those indicate the implementation of 21st-century skills were not inserted fully by the teachers. Moreover, the teachers have to understand the 21st-century skills as essential skills to survive in the 21st-century era,
State and prospects of Lviv plans research
Authors:   Institute of History of Ukraine NASU, Sossa Rostyslav , Bortnyk Serhii ,   Jan Kochanowski University, Lozynskyi Victor ,   Lviv Polytechnic National University
Published: July 2023

The purpose of the paper is to determine the state of research on the peculiarities of mapping and cartographic works of Lviv and, on this basis, to develop tasks for continuing such research on systematic foundations using GIS technologies. Methodology. The theoretical and methodological basis of the research was formed by modern ideas about the significance of a map as an important document of geospatial information and about cartography as a crucial method of recording the state of events and phenomena. The research methodology is based on the principles of historicism, objectivity, systematicity, and comprehensiveness. The methods used in the study include structural-functional and bibliographic analysis, analytical and comparative analysis. Results. Numerous plans of Lviv have long been the subject of research by scholars and specialists. The analysis of previous research has revealed certain gaps along with obvious achievements, primarily in the field of cartography. There is still no complete list of published and manuscript plans of Lviv, and not all periods of the city’s mapping have been properly studied. Geoinformation technologies were practically not used in the analysis of the plans. The study of the accuracy of Lviv’s plans using GIS tools is at the initial stage. Based on the study of the state of research on city plans, we propose the main areas of systematic investigation of the cartographic heritage of Lviv. The result of the cartographic and bibliographic research will be a bibliographic index of printed and manuscript plans of Lviv. The creation of a bibliographic index of literature on the history of mapping in Lviv will complete the historiographical research. The use of geoinformation technologies will have a decisive influence on further research of the plans. A geoportal of the city plans is currently being created. This will present available printed and manuscript plans, as well as historical reconstruction plans. The geoportal will become a high-quality source of information on ancient plans for research by specialists in various fields. It will also perform an important public function of preserving the national cartographic heritage. The scientific novelty of the research is to identify the main areas of systematic study of Lviv’s plans: cartographic bibliography, historiography, creation of a geoportal, and use of geoinformation technologies. The practical significance of the research results is the generalised information on the study of the cartographic heritage of Lviv and its historiography, places of storage of ancient plans.