bluuebunny/crossref_metadata_2025 huggingface dataset:
Advanced Social Engineering Attack Techniques
Authors: Holeton Jody
Published: November 2022

Abstract: This paper explains the emergence of Social Engineering techniques that can be deadly and effective and are being heavily watched by the Department of Defense and the FBI. The increased use of the Internet and cell phones has made it possible for most people to communicate, surf the web, or transfer data anywhere in the world. Social engineering only requires a computer with Internet access or a working smartphone/iPhone. With online forums, the Dark Web, a thousand hacker books on Amazon, these social engineering techniques are being tweaked and modified into techniques that rival the deadliest cookie monster virus or malware. The FBI has found that criminals can use low-tech mediums, like Motorola cell phones, use a historically winning script (Microsoft software fix, or an endangered child) and people will give up personal information, money, or even use deadly force. Finally, this paper describes these new techniques and how they are evolving more effectively in this post-covid and Internetfocused world.
What is the Meaning of School/University Essay and Related Terms in English and Latvian?
Authors: Farneste Monta
Published: November 2022

In the constantly changing world, teachers and researchers of academic writing of English as a foreign language face the problem of differences in writing in the target language and the students’ first language. They need not only to teach, but also to report on the contrastive research of writing in local and international conferences. Researchers encounter the problem of seemingly similar terms having a different meaning in the two languages. Thus, the paper aims at investigating the correspondence between the terms school/university essay writing in English (a foreign language) and their counterparts in Latvian (the native language) as used in theoretical literature. The analysis of the sources published in Latvia since the 1930s until today reveals that there is a tendency to introduce new terms, change the meanings of the existing ones and specify the conventions of essay organization under the influence of the English academic writing traditions. However, these new terms are applied somewhat differently, and the terms as such may vary depending on the personal views of the authors.
Development of Conference Interpreting in The Baltic States: Estonia’s Case Study from 1918 to 1940
Authors: Sibul Karin
Published: November 2022

This paper aims to provide insight into the early years of interpreting in Estonia, which laid the foundation for the expertise of today’s conference interpreters. Neither the history of interpreting nor the explosive growth of international assignments after the restoration of independence in 1991 has been studied. The ethnographic approach of the article focuses specifically on the period from 1918 to 1940, the first era of independence in the history of the Republic of Estonia. The research question is to what extent Estonia used interpreting as a young state to increase its symbolic capital as defined by Pierre Bourdieu. This period was studied by analysing 36 memoirs written by Estonian diplomats, as well as the minutes from the peace negotiations held between Estonia and Russia in 1919. Newspapers published in Estonia from 1918 to 1940 were also examined in order to discover whether interpreting or interpreters were mentioned. 48 articles out of hundreds published over that period contained relevant information and have been analysed. The results display the evolution of conference interpreting in Estonia from its earliest known use in 1918 to the interpretation of public lectures and other events, and also demonstrate the symbolic power of the official language.
The Nation Born in Translation (Latvian Translation Scene)
Authors: Veisbergs Andrejs
Published: November 2022

Latvian national identity (language-centred), the literary polysystem and even the written language itself are the result of translation. Translations have always constituted the majority of literary and other texts. Translation played an exceptionally important, even pivotal, role in the beginnings of written Latvian in the 16th-18th centuries. Translators (native German speakers) formed, codified and modified written Latvian. Religious translations applied a rigorous fidelity approach. Secular translations were localizations of easy reading, sentimental German stories. Parallel to the rise of native literature in the 19th century, there occurred a gradual transition from adaptation /domestication to foreignization and fidelity as the main approach. More ambitious translations of Western classics started, usually done by distinguished Latvian writers. Next to the traditional faithfulness, some translations were freely shortened and otherwise modified. After acquiring independence at the beginning of the 20th century the volume of translation grew and included also literature from more exotic sources. The Soviet period brought a re-orientation: most translations were done from Russian, fiction was translated from the original languages or via Russian as well. Regaining of independence brought about an enormous growth in the translated information amount; within 5 years English became the dominant source language. Translation again (like in the early stage of Latvian) became the main vehicle of language development. In a somewhat paradoxical way translators have formed, altered and inspired a strong language-bound national identity. Their voice, though not always heard and recognized, has been central in the Latvian narrative polyphony.
“Primum non nocere…” Explanting implantable cardioverter-defibrillators in patients with inherited arrhythmia syndromes - Case series
Authors: Proost Virginnio M. , Kooiman Kirsten M. , Werf Christian van der , Lange Frederik de , Wilde Arthur
Published: November 2022

Introduction: Patients with Inherited arrhythmia syndromes
(IAS) are at risk for life-threatening arrhythmias that may present as a
sudden cardiac arrest (SCA) or a cardiac syncope. The benefit
of Implantable cardioverter-defibrillators (ICD) in patients with IAS
should be weighted against the risk for adverse events. This case-series
describes patients diagnosed with an IAS, who were eventually
reclassified in a low risk category and subsequently got their ICD
explanted.   Methods: We selected patients who, 1) were
diagnosed with an IAS, 2) presented with either a documented arrhythmic
event or syncope presumed to be arrhythmic syncope, 3) followed by an
ICD implant, and 4) in whom we decided to explant the pulse generator.  
Results: Overall, eight patients fulfilled the inclusion
criteria. Mean age at ICD implantation was 35±11.6 years. Mean length of
ICD in situ was 4.9±3.6 years. None of the patients experienced a
cardiac event. 2 patients presented with a presumed cardiac syncope,
this diagnosis was rejected after guideline guided syncope evaluation
including Tilt table testing. Alternative (pharmacological) therapy was
started in six patients.   Conclusion: These cases illustrate
the importance of re-evaluating ICD therapy in patients with IAS. This
should be integrated in standard clinical care, even in patients with
IAS who survived a SCA and long term critical follow up is available. In
patients with IAS presenting with an presumed cardiac syncope, extensive
guideline guided syncope evaluation, can be of additional value when
syncope event remains unknown
Pandemic Risk Perception, Vaccine Efficacy Awareness, and Preventive Behaviors of Chinese Residents: A Study Based on the Influence of COVID-19 Vaccine News Media Coverage
Authors: Li Hongxiu , Pan Li , Chen Weilu
Published: November 2022

Methods: Adults aged between 18- and 58-years-old completed an online
survey reporting how they gathered the media information sources of
COVID-19 vaccine any relation their risk perception, vaccine efficacy
and preventive behaviors in COVID-19 pandemic. We finally got 995 valid
questionnaires. Results: Results showed that traditional and social
media Information sources is both significantly and positively
influenced on people’s COVID-19 preventive behaviors, with a stronger
effect from the former. COVID-19 contact risk perception and vaccine
efficacy awareness of media audiences partly mediates their
relationship. 92.6% of the audience pay more attention to COVID-19
vaccine-related information. People believe more in the news information
of the mainstream media of COVID-19 pandemic. 67.2% of the audience
were most frequently exposed to state-controlled news media, 63.6% of
the audience were most frequently exposed to Weibo. Conclusions:
Although developing an effective vaccine for human immunity has long
been determined as the main defensive strategy against this global
pandemic, but under the background of rapid COVID-19 virus mutation,
people’s daily preventive behavior is more important. Media
organizations should shoulder more social responsibilities, embed the
health concept of COVID-19 vaccination into the values and cultural
order of the whole society, find and shape the common meaning space, and
make it produce internal coupling and value identification.
Analysis and Modeling of Common Mode Interference of PT Secondary Side under VFTO Excitation
Authors: Pang Fubing , Ji Jianfei , Wu Xianqiang , Zhou Mengxia , Yan Wei , Xu Dong
Published: November 2022

Very fast transient overvoltage (VFTO) will affect the normal and stable
working state of the secondary equipment of the power system by cable
transmission and space radiation. In order to evaluate the
electromagnetic immunity and enhance the reliability of the secondary
equipment of the power system, there is no doubt that it is important
for us to accurately model the voltage waveform of the secondary side
interference. In this paper, the electromagnetic interference voltage of
potential transformer (PT) secondary side in common mode in 1000 kV GIS
Substation is measured. Secondly, the time-frequency characteristics of
the voltage waveform of the secondary side electromagnetic radiation
interference were analyzed by the synchronous compression wavelet
transform (SWT) method. On this basis, the secondary side interference
model is proposed and the parameters of the model are extracted by
employing the differential evolution algorithm (DE). It can support and
improve the EMI filters design and the immunity generator design of
secondary equipment under VFTO excitation, which can also promote the
immunity standards setting and revising of secondary equipment in the
future.
Comparison of ITU-837 Models Performance in Predicting Malaysia's Rainfall Rate and Rain Attenuation CCDF
Authors: Al-Samawi Aida , Nissirat Liyth A. , Shayea Ibraheem , Din Jafri , Ergen Mustafa , Rahman TharekAbd.
Published: November 2022

This paper investigates the performance of different ITU models in
predicting Malaysia s tropical rainfall rates and
rain attenuation. This investigation is considered at 26GHz mm-wave
frequency, and three datasets collected at different regions in Malaysia
with emphasize on the latest dataset in Skudai in 2012. The data
collected has rainfall rate and rain attenuation measurements for a
continuous year at 1 spm sampling rate. Nonlinear regression is used to
estimate best fit parameters for comparison with ITU-R p.837-1 with rain
zone data, ITU-R p.837-6 as method 1 and ITU-R p.837-7 as method 2.
Results show that ITU method 2 outperforms all the models with RMSE in
the range of 12.72 mm/hr and 3.51 dB/km for rainfall rate and rain
attenuation respectively. Conversely, absolute error at 0.01% of time
showed superiority of ITU-R p.837-1 tropical recommendation with
absolute error in the range of 0.39 mm/hr and 4.16 dB/km for rainfall
rate and rain attenuation respectively. All models showed significant
deviation from the measurements and the best fit at lower than 0.01% of
time, with minimum deviation observed for of ITU method 2 in that range.
Worst month parameters estimation using ITU method2 is in good match to
the best fit estimation.
Impact Of Genetic Polymorphisms On Tacrolimus Trough Blood Concentration In Chinese Liver Transplant Recipients
Authors: Maseko Nicola , Yang Siyao , Li Chengcheng , Zhang Siqi , Wang Ruiying , Zhang Yawen , Li Chuanjiang , Zhang Chuanjie , Li Liang
Published: November 2022

Abstract Purpose: The aim of this study was to analyze the effect of
various genetic polymorphisms and clinical factors on TAC concentration
in convalescence period (CP) and stabilization period (SP) post liver
transplantation. Patients and Methods: A total 13 SNPs of CYP3A4,
CYP3A5, CYP3A7, SLCO1B1, POR, ABCB1, C5 and C6 were genotyped in 97
Chinese liver transplant recipients. Associations between SNPs and TAC
concentration/dose ratio (C0/D) were analyzed using different genetic
models in both CP and SP. Multivariate linear regression was used to
analyze associations between TAC log (C0/D) and clinical factors.
Results: We discovered that the effects of genetic variants and clinical
factors differed between the two periods as liver function gradually
recovered. We identified CYP3A5 (rs15524), C6 (rs9200) along with ALB
and Cr as independent predictors of TAC C0/D. In addition our final
model inclusive of ALB, Cr, rs15524 and rs9200 explained a total of
30.5% variance in TAC log (C0/D). Conclusion: The results of our study
suggest that in the early stages post transplantation surgery recipient
genetic and clinical factors exert a short term impact on TAC metabolism
which gradually decreases with time.
MAPK Activation, P53 and Autophagy Inhibition Characterize the SARS-CoV-2 Spike Protein Induced Neurotoxicity
Authors: Kyriakopoulos Antonis , Nigh Greg , McCullough Peter A , Seneff Stephanie
Published: November 2022

The SARS-CoV-2 spike protein and prions use common pathogenic pathways
to induce toxicity in neurons. Infectious prions activate the p38
mitogen activated protein kinase (MAPK) pathway, and SARS-CoV-2 spike
proteins induce the p38 MAPK and c-Jun NH2-terminal kinase (JNK)
pathways through toll-like receptor signaling, indicating the potential
for similar neurotoxicity, causing prion and prion-like disease. In this
review we analyze the roles of autophagy inhibition, elevated
intracellular p53 levels and reduced Wild-type p53-induced phosphatase 1
(Wip1) and dual-specificity phosphatase (DUSP) expression in neurons.
The pathways induced by the spike protein via toll like receptor
activation induce both PrP upregulation and β amyloid
expression. Through the spike-protein-dependent elevation of p53 levels
via β amyloid metabolism, increased PrP expression
can lead to PrP misfolding and impaired autophagy, generating prion
disease. We conclude that, according to the age of the spike
protein-exposed patient and the state of their cellular autophagy
activity, excess sustained activity of p53 in neurons may be a catalytic
factor in neurodegeneration. We conclude that neurodegeneration is in
part due to intensity and duration of spike protein exposure, patient
age, cellular autophagy activity, and activation, function and
regulation of p53. Finally, the neurologically damaging effects can be
cumulatively spike-protein dependent, whether exposure is by natural
infection or, more substantially, by repeated mRNA vaccination.
Comparing global Sentinel-2 land cover maps for regional species distribution modelling
Authors: Venter Zander , Roos Ruben Erik , Nowell Megan , Rusch Graciela , Kvifte Gunnar Mikalsen , Sydenham Markus Arne Kjær
Published: November 2022

Mapping the spatial and temporal dynamics of species distributions is
necessary for biodiversity conservation land-use planning decisions.
Recent advances in remote sensing and machine learning have allowed for
high resolution species distribution modelling that can inform
landscape-level decision making. Here we compare the performance of
three popular Sentinel-2 (10m) land cover maps including Dynamic World
(DW), European land cover (ELC10) and World Cover (WC), in predicting
wild bee species richness over southern Norway. The proportion of
grassland habitat within 250m (derived from the land cover maps), along
with temperature and distance to sandy soils, were used as predictors in
both Bayesian Regularized Neural Network and Random Forest models.
Models using grassland habitat from DW performed best (RMSE = 2.85;
averaged across models), followed by WC (RMSE = 2.86) and ELC10 (RMSE =
2.89). All satellite-derived maps outperformed a manually mapped
Norwegian land cover dataset called AR5 (RMSE = 3.02). When validating
the model predictions of bee species richness against citizen science
data on solitary bee occurrences using generalized linear models, we
found that ELC10 performed best (AIC = 2800), followed by WC (AIC =
2939), and DW (AIC = 2973). While the differences in RMSE we observed
between models were small, they may be significant when such models are
used to prioritize grassland patches within a landscape for conservation
subsidies or management policies. Partial dependencies in our models
showed that increasing the proportion of grassland habitat is positively
associated with wild bee species richness, thereby justifying bee
conservation schemes that aim to enhance semi-natural grassland habitat.
Our results confirm the utility of satellite-derived land cover maps in
supporting high resolution species distribution modelling and suggest
there is scope to monitor changes in species distributions over time
given the dense time series provided by products like DW.
Allostatic Load in Pregnancy, Race and Associations with Subsequent Cardiovascular Related Outcomes: Research Article
Authors: Lueth Amir , Allshouse Amanda , Blue Nathan , grobman william , Levine Lisa , Catov Janet , Saade George , Yee Lynn , Fernando Wilson , Murtaugh Maureen , Merz Noel , Chung JUdith , Ray Mitali , Scifres Christina , (USA) Robert Silver
Published: November 2022

OBJECTIVE To assess the relationship between allostatic load in early
pregnancy and CVD, 2 to 7 years postpartum, and potential pathways
contributing to racial disparities in CVDs. DESIGN Secondary analysis of
an observational cohort study. SETTING nuMom2b Heart Health Study.
POPULATION Pregnant individuals. METHODS Our primary exposure was
dichotomous high allostatic load in the first trimester, defined as four
or more out of 12 biomarkers in the “worst” quartile. The primary
outcome was new diagnosis of composite CVD, consisting of HTN and or MD
(fasting glucose greater than 100 mg/dL or medication for diabetes).
Each outcome and allostatic load component was analyzed secondarily.
Multivariable logistic regression was used to test the association
between high allostatic load and CVD adjusted for potential confounders.
Mediation and moderation analyses assessed the role of high allostatic
load in racial disparities of CVD. MAIN OUTCOME MEASURE Composite CVD.
RESULTS Among 4,022 individuals, CVD was identified in 1,462 (36.4%);
26.6% had HTN, and had 15.4% MD. High allostatic load was present in
33.0%. After adjustment for covariates, high allostatic load was
associated with CVD (aOR 2.0, 1.8-2.3), HTN (2.1, 1.8-2.4), and MD (1.7,
1.5-2.1). There was a reduction in the magnitude of the relationship
between race and CVD with the addition of allostatic load. Self-reported
race did not significantly moderate the relationship between allostatic
load and CVD. CONCLUSION High allostatic load is associated with CVD.
Allostatic load was a partial mediator between race and CVD. Race did
not moderate the relationship between allostatic load and CVD.
Landscape characteristics determine the gene exchange pattern of Opisthopappus species in the Taihang Mountains
Authors: Zhang Hao , Ye Hang , Liu Li , Zang En , Qie Qiyang , He Shan , Hao Weili , Lan Yafei , Liu Zhixia , Sun Genlou , Wang Yiling
Published: November 2022

Landscape features are effective geographical barriers resulting
inpopulation differentiation of plant species. Taihang Mountains in
China possess complexly geographical topology and specific landscape
characteristics. Two closely related syntopic Opisthopappus species,
mainly distribute in different areas of Taihang Mountains, respectively.
How the landscape of Taihang Mountains affects the gene exchange between
these two species still unclear. Combined SNP data from restriction-site
associated DNA sequencing (RAD-seq) and recently developed landscape
genetic methods (EEMS, Samβada, LFMM), we conducted a landscape genetic
analysis of these two species. It found that the diversity of O.
longilobus was higher than that of O. taihangensis, the gene flow was
mostly from north to south along Taihang Mountains. However, a general
north–south gene exchange barrier between O. longilobus and O.
taihangensis was detected. Among the landscape factors of Taihang
Mountains, eight was found to be the important ones, including average
precipitation in August, October, and November, solar radiation in
August, soil PH, built-up land, rain-fed cultivated land, and
workability. And these eight factors were closely related to the
occurred barriers, indicating that climatic conditions and human
activities rather than geographical environment resulted in these
barriers. Twenty-nine selected SNPs were identified to be significant
correlated with the eight factors, especially average precipitation in
November. Thus, the average precipitation in November could be regarded
as an ecological indicator for O. longilobus and O. taihangensis. The
results revealed the effect of landscape features on two species and the
adaption on the landscape environment of Taihang Mountains during the
long-term evolution.
DNA matching exotic species detected in samples from sedentary birds and the environment
Authors: Westerduin Coen , Suokas Marko , Petäjä Tuukka , Saarela Ulla , Vainio Seppo , Mutanen Marko
Published: November 2022

The development of DNA-based methods in recent decades has opened the
door to numerous new lines of research in the biological sciences. While
their speed and accuracy are clearly beneficial, the sensitivity of
these methods has the adverse effect of increased susceptibility to
false positives resulting from contamination in field or lab. Here, we
present findings from a metabarcoding study on the diet of and food
availability for several insectivorous birds, in which multiple
lepidopteran species not known to occur locally were discovered. After
describing the pattern of occurrences of these non-local species in the
samples, we discuss various potential origins of these sequences. First,
we assess that the taxonomic assignments appear reliable, and local
occurrences of many of the species can be plausibly ruled out. Then, we
look into the possibilities of natural environmental contamination,
judging it to be unlikely, albeit impossible to fully falsify. Finally,
while the pattern of occurrences did not suggest lab contamination, we
find overlap with material handled in the same lab, which was
undoubtedly not coincidental. Even so, not all exact sequences were
accounted for in these locally conducted studies, nor was it clear if
these and other sequences could remain detectable years later. Although
the full explanation for the observations of non-local species remains
inconclusive, these findings highlight the importance of critical
examination of metabarcoding results, and showcase how species-level
taxonomic assignments utilizing comprehensive reference libraries may be
a tool in detecting potential contamination events, and false positives
in general.
Synthesis of poly(acrylamide-co-methyl methacrylate) chemicaly cross-linked hydrogels for efficient adsorption of red erionyl dye
Authors: Chaibi Wahiba , Boucherba Hanane , Filali Elhouda , Boukhouya Imene , Badaoui Asma , Guemra Kaddour
Published: November 2022

Polyacrylamide (Poly (AAm)) and poly(acrylamide-co-methyl methacrylate) (poly (AAm-co-MMA)) hydrogels were synthesized by solution free radical polymerization initiated by Potassium persulfate initiator (KPS) at different feed mol monomer ratios and N,N-methylene bisacrylamide (BIS) as a crosslinking agent. The obtained hydrogels were characterized by FTIR, scanning electron microscopy (SEM) and swelling behaviour. The swelling properties of Poly (AAm) and poly (AAm-co-MMA) hydrogels were studied in distilled water at different pH. The effect of temperature on swelling behaviour of these hydrogels has been analysed by variation from 25 to 50?C. Poly(AAm-co-MMA) hydrogels were considered for the removal of Red Erionyl textile dyes from aqueous solutions. Two kinetics models were applied; the first and the second order kinetics as well as the Freundlich and Langmuir isotherms were tested. The result confirms that the adsorption process of Red Erionyl dye follows second-order kinetics and their equilibrium data were fitted well to the linear Langmuir model.
Islamic Astronomy of Abbasid Era (750-1258 AD)
Authors: Aziz Muhammad Ilham , Musta'id Ahmad
Published: November 2022

Astronomy is a particular field in Islam related to the interests of daily Muslim worship practices, such as determining the beginning of prayer times, qibla direction, and the beginning of the Qamariyah month. During the Abbasid period 750-1258 AD, especially during the reign of Abu Ja'far Al-Mansur, Harun Al-Rashid, and Al-Ma'mun, Islamic astronomy developed significantly. This can be seen from the emergence of astronomers. The love of the three Abbasid caliphs for science significantly influenced the policies related to development in science. The method used in this study is a qualitative method with historical analysis techniques. This study aims to add to the enrichment of historical treasures related to the development of science, especially astronomy, during the Abbasid period. Meanwhile, astronomy during the Abbasid period also had many scientific sources that needed to be studied more comprehensively. That is, many scientific figures in astronomy have never been specifically studied. Therefore, the study of astronomy today in higher education must also seriously focus on learning classical knowledge. This paper discusses the Abbasid state in developing science during its reign by looking at it from the perspective of significant scientific developments during the leadership of its caliph, which was indirectly influenced by socio-religious and intellectual conditions in his time. During the Abbasid era, the progress of science had reached its golden age, especially in Islamic astronomy which had contributed to the development of its science in the field of astronomy in the period after that until now.
Drawing on grief: Adapting heuristic inquiry in a practice led thesis
Authors: Hoyle Elizabeth
Published: November 2022

In this presentation, I consider the role and the nature of heurisitic inquiry in the creation of hybrid documentaries. These hybrid documentary artefacts combine interviews, observational video and various applications of animation to translate the narratives of grief into visual and sonic stories. In this research study, it is the grief we experience due to the loss of a loved one which is investigated. I am positioned as an ‘inside researcher’ (Kirpitchenko & Voloder, 2014) who examines a question that is both personally significant and existential. Using a heuristic inquiry through a self-investigation, a self-dialogue and a reflection, I build on my knowledge about the understanding of loss. This presentation uses my initial case studies of a practice-led inquiry to examine how a heuristic inquiry can be employed to enable a documentary maker to navigate internal pathways of the self, while interpreting other people’s shared, reflective narratives of grief. I will demonstrate how a heuristic inquiry can activate plasticity in exploration and heighten the potentials for discovery in the pursuit of a creative practice. Building on Wood’s (2004) assertion that heuristics is more concerned with discovery than the pursuit of proof, this research study considers a heuristic inquiry as a conceptual framework (Douglass & Moustakas, 1990), that engages intuitive questioning which enables similarities, analogies or homologies to surface while artistic data is being generated (Kleining and Witt, 2000). In the session, four novel processes of heuristic engagement will be discussed: maintaining a consciously poetic sensibility that embraces the vulnerability of the practitioner whilst protecting the interviewee; extending periods of indwelling and reflection on the artefacts produced; practicing aroha (showing consideration, connection, love and respect); and pursuing and embracing serendipity as a means of enhancing the possibilities for discovery and novel approaches to practice.
Improving control system of output voltage in “shaft generator - frequency converter” complex
Authors: Avdeyev Boris Aleksandrovich , Davydova Daria Dmitrievna , Podunai Svetlana Vladimirovna
Published: November 2022

The article focuses on operation of the ship shaft generator on the joint buses of the main switchboard through a frequency converter that consists of an uncontrolled rectifier and a self-excited inverter with pulse width modulation. The most common schemes of using shaft generators on ships are given, their advantages and disad-vantages are analyzed. There has been illustrated a flowchart and given a detailed description of the operation

of a ship electric power plant with power take-off from the main engine. A control system regulating the constant flow interlinkage in the “frequency converter - shaft generator” complex, which ensures stable output voltage, has been developed. It has been stated that a random change in the rotational speed or in a torque fluctuation of the shaft generator rotor have little impact on the quality of generated electricity. Simulation modeling of the complex is given in the MATLAB/Simulink software package. The developed controller of a self-excited inverter supports continuous flow interlinkage by vector control. There has been demonstrated the composition and operation principle of the control system of output voltage of a shaft generator by using vector regulation method. Modeling has proved the availability of the self-excited inverter control system. The oscillograms of modeling the input and output current and voltage values have been obtained. The modeling results justified that changing the input voltage and frequency of the generator provided the high quality output voltage indicators. Harmonic distortion coefficients and static deviations have been analyzed. The expediency of using combined filters of higher harmonics to eliminate interharmonics and higher harmonics in the ship network has been proved. Practical recommendations are given to improve the quality of operation of the ship electrical complex with a shaft generator.
Modeling load effect of marine diesel engines on cooling system operation
Authors: Zelinsky Michail Mikhailovich , Romanenko Nickolay Gennadievich , Nenastiev Egor Aleksandrovich
Published: November 2022

The article provides analysis of the load effect of the marine internal combustion engines (ICE) on the tem-perature parameters of the water cooling system of ICEs equipped with L32-40 Vis diesel engines. In ICE cooling systems the drive motors of the pumps supplying the cooling water operate at a constant speed and provide a constant water supply. The thermal state of a marine diesel ICE is regulated by valves according to deviation of the actual temperature values of cooling water from the preset values. By closing or opening the water lines the valves change the proportion of cooling water flows of the external and internal circuits fed to the heat exchangers. There is implemented the principle of regulating the deviation of the main coordinate - the temperature of the cooling water. The influence of other factors on the operation of the system is taken into account with a delay. Modeling the operation of the high-temperature circuit of the cooling system of the main ship engine of the ferry was carried out using the simulator

of the engine room TRANSAS TechSim 5000. There have been obtained graphical results of changing the cooling circuit water temperature with increased and decreased loads on diesel engines by changing the set speed with different initial and final values at a constant water temperature in the external cooling circuit. The graphs helped obtain numerical and qualitative indicators of transient processes (duration, oscillation, overshoot, final temperature values, etc.) for the different initial conditions - ranges of diesel load changes. The resulting graphical dependences are analyzed, conclusions about the modes of working out the disturbing influences by the cooling system, the parameters

of transient processes and the features of the operation of the standard control system and the cooling system circuit

of the main marine diesel engine in terms of ensuring optimal performance of the system are drawn. It has been inferred that the standard control system under some initial conditions does not provide the optimal parameters of transient processes.
PENINGKATAN KEMAMPUAN BERWUDU MELALUI PENERAPAN METODE DEMONSTRASI PADA PESERTA DIDIK KELAS II DI SEKOLAH DASAR NEGERI
Authors: Kasmiati Kasmiati
Published: November 2022

Penelitian ini bertujuan untuk membuktikan metode demonstrasi dapat meningkatkan kemampuan berwudu peserta didik kelas II di SD Negeri Tindang Kecamatan Bontonompo Selatan Kabupaten Gowa. Penelitian ini merupakan Penelitian Tindakan Kelas (PTK) dengan 3 siklus melalui 4 tahapan yaitu perencanaan, pelaksanaan, observasi, dan refleksi. SubJek penelitian ini sebanyak 33 peserta didik, dengan KKM 70 dan ketuntasan klasikal 85. Pengumpulan data menggunakan lembar observasi kemampuan berwudu dari hasil praktek sebelum dan sesudah tindakan. Analisis data menggunakan statistik deskriptif. Hasil penelitian menunjukkan adanya peningkatan hasil belajar peserta didik yang signifikan setelah penerapan metode demonstrasi dibandingkan sebelum dilaksanakan metode demonstrasi, dengan rata-rata sebelum tindakan 30,30%, pada siklus 1 ketuntasan individual sudah tuntas dan ketuntasan klasikal rata-rata 66,66%. Hanya saja pada siklus 1, hanya 6 peserta didik yang bergabung karena regulasi pencegahan Covid 19. Penulis mencari solusi dengan berusaha mendapatkan izin dari kepala sekolah dan orang tua peserta didik agar bisa masuk secara bersamaan. Hasilnya pada siklus 2 didapatkan rata-rata 81,81% dan pada siklus 3 rata-rata 90,90%. Dengan demikian dapat disimpulkan bahwa metode demonstrasi terbukti dapat meningkatkan kemampuan berwudu peserta didik kelas II SDN Tindang Kecamatan Bontonompo Selatan Kabupaten Gowa.
MENINGKATKAN HASIL BELAJAR PAI PADA MATERI AKU ANAK SALEH MELALUI MODEL DISCOVERY LEARNING BAGI SISWA
Authors: Nasir Muhammad
Published: November 2022

Penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar PAI pada materi Aku Anak Saleh melalui model discovery learning bagi siswa kelas IV SD Inpres Kampung Beru Kecamatan Biringbulu Kabupaten Gowa. Penelitian ini dilaksanakan di SD Inpres Kampung Beru Kecamatan Biringbulu Kabupaten Gowa. Adapun objek penelitian ini yakni peserta didik kelas IV. Penelitian tindakan ini terdiri dari dua siklus. Instrumen yang digunakan untuk mengumpulkan data dalam penelitian ini terdiri dari pencatatan laporan dan tes/kuis. Data yang diperoleh dalam penelitian dianalisis dengan menggunakan model analisis data kuantitatif deskriptif. Hasil penelitian menunjukkan adanya peningkatan setelah diadakan pembelajaran dengan menggunakan model discovery learning dengan indikasi sebagai berikut: (1) Skor rata-rata hasil belajar PAI siswa kelas IV SD Inpres Kampung Beru Kecamatan Biringbulu Kabupaten Gowa pada siklus I pertemuan I dan II berada dalam kategori rendah dan sedang skor rata-rata sebesar 63,66 dan 70,0 dari skor ideal 100. (2) Skor rata-rata hasil belajar PAI siswa kelas IV SD Inpres Kampung Beru Kecamatan Biringbulu Kabupaten Gowa pada siklus II pertemuan III berada dalam kategori tinggi skor rata-rata sebesar 80,33 dari skor ideal 100.
PENINGKATAN HASIL BELAJAR PAI MATERI BERSUCI DARI HADAS KECIL MELALUI METODE DEMONSTRASI PADA PESERTA DIDIK KELAS IV
Authors: Patmawati Patmawati
Published: November 2022

Penelitian ini bertujuan untuk meningkatkan hasil belajar PAI materi bersuci dari hadas kecil melalui metode demonstrasi peserta didik kelas IV UPT SDI Todakke No 72 Kepulauan Selayar. Jenis penelitian ini yakni penelitian tindakan kelas (classroom action research) yang dilaksanakan dalam tiga siklus yaitu siklus I, siklus II dan siklus III. Tiap siklus ada empat tahapan yaitu perencanaan, pelaksanaan, pengamatan, dan refleksi. Adapun metode pengumpulan data yang digunakan meliputi observasi, tes, dan dokumentasi. Hasil yang diperoleh dalam penelitian ini adalah terjadi peningkatan hasil belajar peserta didik untuk mata pelajaran PAI materi bersuci dari hadas kecil kelas IV. Hal ini dapat dilihat dari kondisi siklus I yaitu nilai rata-rata hasil belajar peserta didik yang awalnya 5 atau 50 % peserta didik yang tuntas, pada siklus II meningkat menjadi 7 atau 70 % dan meningkat lagi pada siklus III menjadi 10 atau 100% peserta didik yang tuntas. Berdasarkan hasil belajar tersebut, dapat disimpulkan bahwa melalui metode demonstrasi dapat meningkatkan hasil belajar PAI materi bersuci dari hadas kecil pada peserta didik kelas IV UPT SDI Todakke No.72 Kepulauan Selayar.
PENDAMPINGAN PENINGKATAN HASIL BELAJAR MATEMATIKA SISWA KELAS XI MA YPPI KABUPATEN BULUKUMBA MELALUI PEMBERIAN TUGAS
Authors: Jamil Haeruddin , Ibrahim Misykat Malik , Sriyanti A. , Munirah Munirah , Idris Ridwan
Published: November 2022

Abstrak

Tujuan pengabdian ini adalah untuk mengetahui peningkatan hasil belajar siswa pada mata pelajaran matematika siswa kelas XI MA YPPI Kabupaten Bulukumba dengan penerapan pemberian tugas. Populasi dalam pengabdian ini adalah seluruh siswa kelas XI MA YPPI Kab. Bulukumba yang berjumlah 52 orang dan terbagi menjadi 2 kelas. Teknik pengambilan sampel menggunakan teknik sampling jenuh. Kelas eksperimen adalah kelas XIa sebanyak 27 siswa, yang menjadi kelas kontrol adalah kelas XIb sebanyak 25 siswa. Instrumen yang digunakan yaitu tes essai sebanyak 5 soal, dan analisis data yang digunakan yaitu analisis deskriptif dan analisis inferensial. Hasil analisis statistik deskriptif diperoleh rata-rata post-test kelas eksperimen 83,06 dan rata-rata post-test kelas kontrol 72,48. Sedangkan hasil analisis inferensial dalam pengujian hipotesis data menunjukkan nilai thitung lebih besar daripada nilai ttabel (3,38>1,68) dan rata-rata hasil belajar kelas eksperimen lebih tinggi dibanding rata-rata hasil belajar kelas kontrol, dengan demikian dapat disimpulkan bahwa penggunaan pembelajaran pemberian tugas efektif dalam meningkatkan hasil belajar matematika pada siswa kelas XI MA YPPI Kab. Bulukumba.

 

Abstract

The dedication of this study were knowing the in crease in student learning out comes in mathematics Class XI students of MA YPPI, Bulukumba Regency with the implementation of assignments. The population in this study were all students of class XI MA YPPI Kab. Bulukumba, amounting to 52 people and divided into 2 classes. The sampling technique used a saturated sampling technique. The experimental class was class XIA with 27 students, the control class was class XIB with 25 students. The instruments used were 5 essay tests, and the data analysis used was descriptive analysis and inferential analysis. The results of the descriptive statistical analysis showed that thepost-test average for the experimental class was 83.06 and the post-test average for the control class was 72.48. While the result sofin ferential analysis in testing the data hypothesis show that the t-count value is greater than the t-table value (3.38> 1.68) and the average learning out comes of the experimental class are higher than the average learning outcomes of the control class, thus it can beconcluded that the use of learning assignment is effective in improving mathematics learning outcomes in class XI MA YPPI Kab. Bulukumba.
PERAN PELATIHAN PERENCANAAN DAN PENGELOLAAN KARIR DAN JABATAN AKADEMIK TERHADAP SIKAP DOSEN DALAM KENAIKAN PANGKAT
Authors: Damayanti Eka , Dewi Eva Meizara Puspita , Gunawan H.Z Arie , Ramdhani Paras Putri , Halima Andi
Published: November 2022

Abstrak
Penelitian pengabdian ini bertujuan untuk memberikan pembekalan pengetahuan dan keterampilan kepada peserta agar mereka paham regulasi dan mengetahui secara teknis hal yang harus dilakukan untuk kenaikan pangkat dan jabatan fungsional dosen. Kegiatan penelitian pengabdian yang dilakukan oleh APPI Sulawesi dalam bentuk Pelatihan Perencanaan dan Pengelolaan Karir dan Jabatan Akademik Dosen yang dilakukan secara online dengan menggunakan media zoom meeting. Jumlah peserta sebanyak 39 namun yang menjadi responden sebanyak 27 orang yang berasal dari latar belakang pendidikan dan jabatan yang berbeda dari berbagai kampus/instansi di Sulawesi Selatan, bahkan ada dari Jawa Barat dan Sulawesi Barat. Instrumen pengumpulan data menggunakan angket yang disebar melalui google form. Data diolah menggunakan analisis deskriptif. Pengabdian kepada masyarakat ini dinilai bermanfaat dan sesuai dengan kebutuhan peserta. Materi yang disajikan dapat menyadarkan peserta tentang pentingnya perencanaan dan pengelolaan karir mulai dari kegiatan pendidikan, penelitian dan pengabdian kepada masyarakat. Setelah pelatihan, keseluruhan peserta menyatakan akan membuat perencanaan karir dosen.
 
Abstract
This service research aims to provide participants with knowledge and skills of technical rules and regulations that lecturers must follow for the promotion and functional positions. The study was conducted by APPI Sulawesi in form of Lecturer Career Planning, Management Training, and Academic Position. It was carried out online by using the Zoom meeting media. The total number of participants was 39, with 27 respondents coming from various educational backgrounds and positions at many campuses and agencies in South Sulawesi, some even from West Java and West Sulawesi. The data instrument used was a questionnaire distributed via a google form. The data was analyzed descriptively. This community service is advantageous and meets the needs of the participants. The material presented has the potential to make participants aware of the significance of career planning and management, beginning with educational activities, research, and community service. People who have participated in the training agree will make career plans after they have completed their training.
SOSIALISASI PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE VAK (VISUALIZATION AUDITORY KINESTETIC) DAN TIPE AIR (AUDITORY INTELLECTUALLY REPETITION) PADA MTS NEGERI GOWA
Authors: Multazam Multazam , Sriyanti A , Angriani Andi Dian , Majid Ahmad Farham , Kusumayanti Andi , Yuliany Nur
Published: November 2022

Tujuan pengabdian ini untuk mengetahui perbedaan antara hasil belajar matematika siswa yang diajar dengan menggunakan model pembelajaran VAK (Visualization Auditory Kinestetic) dengan hasil belajar matematika siswa yang diajar dengan menggunakan model pembelajaran AIR (Auditory Intellectually Repetition) pada siswa kelas VIII MTs Negeri Gowa. Pengabdian ini berbasis penelitian menggunakan equivalent time series design. Pada pengabdian ini, kelas VIII 4 dan kelas VIII 5 sebagai subjek sosialisasi I dan II yang masing-masing terdiri dari 37 siswa. Analisis data menggunakan analisis deskriptif dan analisis inferensial menggunakan uji-t untuk sampel independen (independent sample t-test). Dari hasil analisis deskriptif menunjukkan bahwa model pembelajaran VAK dan AIR cukup efektif untuk meningkatkan hasil belajar matematika siswa sedangkan berdasarkan hasil uji hipotesis menunjukkan bahwa nilai signifikansi sebesar 0,183. Nilai ini menunjukkan bahwa sign > ∝ yaitu 0,183 > 0,025 sehingga H0 diterima atau dengan melihat nilai 𝑡ℎ𝑖𝑡𝑢𝑛𝑔 sebesar 1,345 maka jika dibandingkan dengan 𝑡𝑡𝑎𝑏𝑒𝑙 (𝑡(0,025,46)) sebesar 2,028 maka −𝑡𝑡𝑎𝑏𝑒𝑙 ≤ 𝑡ℎ𝑖𝑡𝑢𝑛𝑔 ≤ 𝑡𝑡𝑎𝑏𝑒𝑙 atau −2,028 ≤ 1,345 ≤ 2,012 artinya H0 diterima atau disimpulkan bahwa tidak terdapat perbedaan signifikan nilai rata-rata hasil belajar matematika antara siswa yang diajar menggunakan model pembelajaran VAK (Visualization Auditory Kinestetic) dengan model pembelajaran AIR (Auditory Intellectually Repetition) pada siswa kelas VIII MTs Negeri Gowa.
The Embedment of Risk Management in Enterprise Management System
Authors: Sylwia Bąk
Published: November 2022

Purpose

The purpose of this text is to diagnose the degree to which risk management is embedded in enterprise management system, and in particular to identify risk prevention activities taken in different management domains by enterprises listed on the Warsaw Stock Exchange, representing the following three sectors: financial services, construction, and IT.

Design/methodology/approach

The research was carried out using a triangulation of research methods. The following research methods were used: analysis of the content of source documentation generated by the analyzed enterprises, one-stage logical classification, exemplification, and comparative analysis. The research involved 107 enterprises listed on the Warsaw Stock Exchange and representing the sectors of financial services, construction, and IT.

Findings

The main conclusion resulting from the research is that risk management is firmly rooted in enterprise management systems, which manifests itself in the presence of measures taken against risk in various management domains, such as strategic, operational, financial, quality, human resources, project, investment, and innovation management. According to the obtained results, the enterprises under analysis the most often apply risk management measures in the areas of strategic management, operational management, and financial management.

Originality/value

The main added value of the results of the conducted research is the presentation of the management domains in which risk prevention activities are located and the identification of the analyzed enterprises’ specific preventive measures that fall within different management domains and allow the perception of risk management as an integrator of all processes carried out in the enterprise.
The Impact of Virtual Reality Training on Learning Gymnastic Elements on a Balance Beam with Simulated Height
Authors: Bürger D. , Ritter Y. , Pastel S. , Sprich M. , Lück T. , Hacke M. , Stucke C. , Witte K.
Published: November 2022

Virtual reality (VR) is a tool used in sports to train specific situations under standardized conditions. However, it remains unclear whether improved performances from VR training can be transferred into real world (RW). Therefore, the current study compares beginner training of balance beam tasks in VR (simulated balance beam height, n = 17) with similar training in RW (n = 15). Both groups completed 12 training sessions (each 20 min) within six weeks in their respective environment. The training aimed to learn the one leg full turn on a balance beam with a height of 120 cm. Criteria were defined to analyze the movement quality before and after the intervention. Statistical analyses showed similar improvements in movement quality in RW for both training groups after the intervention (p < .05). These results indicate that the skills adapted in VR could be transferred into RW and that the VR training was as effective as the RW training in improving the movement quality of balance beam elements. Thereby, VR provides the advantages of a reduced risk of injury due to a simulated beam height, a faster beam height adjustment, and spacial independence from specific gyms.