bluuebunny/crossref_metadata_2025 huggingface dataset:
Predictive Activation Strategy for Health-Conscious Energy Management of Multi-Module Fuel Cell Systems in Heavy-Duty Long-Haul Electric Trucks
Authors: Ferrara Alessandro , Hametner Christoph
Published: August 2023

Fuel cell systems for heavy-duty applications typically consist of multiple modules that can supply power jointly or individually. This work presents a novel energy management concept for the health-conscious activation of multi-module fuel cell systems to mitigate degradation in short or low-demanding driving cycles. The proposed activation strategy contributes to developing intelligent control systems for fuel cell electric trucks that optimally decide between battery-only, one-module, or two-module operation depending on the expected driving scenarios. The strategy derives from an optimal energy management problem formulation solved using dynamic programming, considering factors such as truckload, initial battery charge, route elevation, and trip length. Activation strategies for multi-module fuel cell systems are of significant interest because fuel cell degradation is severely affected by start-up/shut-down cycles. This type of degradation is dominant in urban or rural driving cycles because they are significantly shorter than motorway ones. By avoiding start-up/shut-down cycles in short and low-demanding driving scenarios, the proposed strategy significantly reduces the overall number of cycles over the fuel cell lifetime, mitigating degradation. In conclusion, this paper presents an innovative solution to improve the durability of fuel cell powertrains, which is still a significant barrier to their market penetration and advancement in automotive applications. In particular, the activation strategy contributes to developing intelligent control systems for fuel cell electric trucks, which can optimally decide the number of active fuel cell modules depending on the driving scenario, ultimately leading to more durable fuel cell systems.
Control Algorithms for xEV Powertrain Efficiency and Thermal Comfort
Authors: Aletras Nikolaos , Besinas Dimitrios , Livitsanos Georgios , Koltsakis Grigorios , Samaras Zissis , Ntziachristos Leonidas
Published: August 2023

This paper investigates how different on-board energy management system (EMS) algorithms can affect the total energy consumption considering propulsion, heating, ventilation, and air conditioning (HVAC) operation and thermal comfort requirements. Firstly, an integrated plug-in hybrid electric vehicle (PHEV) powertrain and HVAC model including vehicle cabin has been developed as a demonstrator. Two different EMS algorithms - namely a rule-based and an equivalent consumption minimization strategy (ECMS) one - are applied to the integrated PHEV model and evaluated under different environmental conditions. The results showed that the HVAC system operation affects the total energy consumption benefits when ECMS algorithm is used over the rule-based. ECMS reduces the total energy consumption by 2.5% compared to rule-based without HVAC operation, while the total energy consumption reduction changes to 5.3% and 6.3% when HVAC provides heating and cooling power respectively. Furthermore, the ECMS algorithm can reach the target of sufficient thermal comfort 1 minute earlier than rule-based in WLTC cycle. Based on the above findings we recommend evaluating the EMS algorithms with integrated propulsion and the HVAC system modeling. By applying it to real EMS unit energy consumption reduction of new vehicles under real-world operating conditions can be expected.
Comparative Assessment of Zero CO2 Powertrain for Light Commercial Vehicles
Authors: Pipicelli Michele , Sedarsky David , Koopmans Lucien , Gimelli Alfredo , Di Blasio Gabriele
Published: August 2023

The transport sector is experiencing a shift to zero-carbon powertrains driven by aggressive international policies aiming to fight climate change. Battery electric vehicles (BEVs) will play the main role in passenger car applications, while diversified solutions are under investigation for the heavy-duty sector. Within this framework, Light Commercial Vehicles (LCVs) impact is not negligible and accountable for about 2.5% of greenhouse gas (GHG) emissions in Europe. In this regard, few LCV comparative assessments on green powertrains are available in the scientific literature and justified by the fact that several factors and limitations should be considered and addressed to define optimal powertrain solutions for specific use cases. The proposed research study deals with a comparative numerical assessment of different zero-carbon powertrain solutions for LCV. BEVs are compared to hydrogen-based fuel cells (FC) and internal combustion engines (ICE) powered vehicles. The analysis is conducted through specifically developed vehicle models. Vehicle performance in terms of energy efficiency, well-to-wheel GHG, range, payload, and total cost of ownership (TCO) are compared. Optimal powertrain configurations based on predefined vehicle ranges have been identified, and the impact of various cost scenarios has been analyzed. The most influencing factors on TCO have been identified, and a sensitivity analysis has been carried out. The numerical tool developed, and the methodology adopted allows the definition of the domains in which one solution prevails over the others in terms of vehicle range, fuel, and electricity cost.
Model-Based Energy Consumption Optimization of a Twin Battery Concept Combining Liquid and Solid-State Electrolyte Cells
Authors: Fandakov Alexander , Tourlonias Paul , Herzog Alexander , Özkan Emre , Mehnert Ronny Kurt , Sens Marc
Published: August 2023

The majority of powertrain types considered important contributors to achieving the CO2 targets in the transportation sector employ a battery as an energy storage device. The need for batteries is hence expected to grow drastically with increasing market share of CO2-optimized powertrain concepts. The resulting huge pressure on the development of future electrochemical energy storage systems necessitates the application of advanced methodologies enabling a fast and cost-efficient concept definition and optimization process. This paper presents a model-based methodology for the optimization of BEV thermal management concept layouts and operation strategies targeting minimized energy consumption. Starting at the vehicle level, the proposed methodology combines appropriate representations of all primary powertrain components with 1D cooling and refrigerant circuit models and focuses on their interaction with the battery chemistry. To this end, the battery cells are thermally modeled in 3D, complemented by a P2D electro-physicochemical approach. Thanks to online coupling the cell representation with the 1D powertrain and thermal management models, heat transfer and cell temperatures can be calculated as a function of the boundary conditions at each simulation step. The model-based methodology is subsequently employed for the optimization of a novel Twin Battery concept combining sodium-ion and solid-state lithium-ion battery cells. The approach enables the cost-efficient adaption of both thermal management layout and operation strategy, resulting in reduced energy input and shorter time required for reaching operation temperature of the solid-state cells. Ultimately, a minimization of the overall powertrain energy consumption can be achieved while ensuring chemistry-specific optimal temperature levels and hence reduced battery aging.
A State of Health Estimation Technique based on a Temperature and Ah Throughput Dependency Model of the Capacity Fade
Authors: Broatch Alberto , Olmeda Pablo , Margot Xandra , Agizza Luca
Published: August 2023

This work proposes a novel approach for state of health estimation of lithium-ion cells by developing a capacity fade model with temperature and Ah throughput dependencies. Two accelerated life cycle testing datasets are used for model calibration: a multi discharge rate dataset of an NMC/graphite cylindrical cell and a multi temperature dataset for an LCO/graphite pouch cell. The multi discharge rate dataset has been recorded at 23 °C and for 4 discharge-rates (C/4, C/2, 1C and 3C). The multi-temperature dataset considers the accelerated ageing of the cells at 4 temperatures (10, 25, 45 and 60 °C). An Arrhenius model is chosen for describing the temperature dependency while a power law model is chosen for cycle (Ah throughput) dependency. The model shows a good agreement with experimental data in each analyzed condition, allowing a precise description of the capacity degradation over time. From the single-temperature analysis, it is found that the activation energy decreases with respect to the C-rate: this is due to the fact that at higher C-rates, the irreversible chemical phenomena accelerate, leading to an overall faster ageing of the cell. From the multi-temperature analysis, the power law coefficient shows a quadratic dependency relative to temperature: a minimum for the power law coefficient is found corresponding to 25 °C, due to the fact that both for lower and higher temperatures, the ageing mechanisms are accelerated. Finally, an analysis of the impact of fast charging on cell ageing, in different charging scenarios is provided: the fast degradation of the cells at very low temperatures highlights the importance of an appropriate cooling of the battery during charging operations. This empirical methodology can be easily integrated in battery management system algorithms due to the easiness of the calibration and the low calculation time.
Experimental and Numerical Electro-Thermal Characterization of Lithium-Ion Cells for Vehicle Battery Pack Applications
Authors: Mendecka Barbara , Krastev Vesselin Krassimirov , Serao Paola , Bella Gino
Published: August 2023

Batteries are the key elements for the massive electrification of the transport sector. With the rapidly growing popularity of electric vehicles, it is becoming increasingly important to characterize the behavior of battery packs through fast and accurate numerical models, in order to support experimental activities. A coupled electro-thermal simulation framework is required, as it is the only way to realistically represent the interactions between real world battery pack performances and the vehicle-level thermal management strategies. The purpose of this work is to pave the way for a comprehensive methodology for the development of a supporting modeling framework, to efficiently complement experiments in the optimal design and integration of battery packs.

The full methodology consists of the following steps: i) an experimental analysis of the temperature and current dependence on various internal parameters of selected lithium-ion cells based on their electrochemical properties, ii) development and implementation of a battery cell electric model that takes into account the aforementioned dynamics and their dependencies; the electrical model is based on the Equivalent Circuit Model (ECM) and can be used to calculate the electrical output and losses of Li-ion cells as a function of state of charge and current; iii) development of a cell-level multi-domain computational framework for coupled electro-thermal simulations, based on state-of-the art CFD software tools; iv) validation and tuning of the multi-domain framework through ad-hoc designed experiments with controlled cell charge-discharge profiles and temperature measurement; v) extension of both the ECM and multi-domain approaches to full-scale battery packs, to be adopted for electric vehicle characterization under realistic driving conditions, with detailed battery thermal management.

Results shown in the present paper cover steps i) to iv) and include a series of static and dynamic experimental tests with voltage response and temperature measurements performed on the selected Li-ion cells. It is shown that the proposed modeling tools can accurately predict the electro-thermal behavior of the cells under static and dynamic current conditions. Most of the average relative errors between predicted values and test values obtained do not exceed 10%.
Co-Simulation Framework for Electro-Thermal Modeling of Lithium-Ion Cells for Automotive Applications
Authors: El Idrissi Faissal , Ramesh Prashanth , D'Arpino Matilde , Canova Marcello
Published: August 2023

Battery packs used in automotive application experience high-power demands, fast charging, and varied operating conditions, resulting in temperature imbalances that hasten degradation, reduce cycle life, and pose safety risks. The development of proper simulation tools capable of capturing both the cell electrical and thermal response including, predicting the cell’s temperature rise and distribution, is critical to design efficient and reliable battery packs. This paper presents a co-simulation model framework capable of predicting voltage, 2-D heat generation and temperature distribution throughout a cell. To capture the terminal voltage and 2-D heat generation across the cell, the simulation framework employs a high-fidelity electrical model paired with a charge balance model based on the Poisson equation. The 2-D volumetric heat generation provided by the charge balance model is used to predict the temperature distribution across the cell surface using CFD software. A co-simulation tool is designed to ensure the electrical and charge balance models designed in MATLAB and Simulink are synchronized with the thermal model implemented in STAR-CCM+. The electrical and thermal models are calibrated and validated using experimental data. The model output was compared to data collected in a controlled environment with the cell fixtured to emulate different boundary conditions. The model was exercised with various power levels and boundary conditions to simulate different operating conditions, such as an air-cooled or liquid-cooled battery pack, or the location of the cell within the battery pack itself.
Experimental Investigation on Thermal Effects of a Metal Foam-based Frame Application for Lithium-Ion Cells
Authors: Sequino Luigi , Capasso Clemente , Costanza Girolamo , Tata Maria Elisa
Published: August 2023

The use of electric propulsion systems for road vehicle applications is widely recognized as one of the most feasible solutions for sustainable mobility. On the other hand, improvement, and optimization of battery technologies remain challenging technical bottlenecks to be addressed. In particular, the design of proper packaging and heat dissipation structures can greatly support obtaining robust, high energy and power density battery packs. In this regard, this paper presents an experimental analysis of a metal foam-based frame used for the support and cooling of a small battery pack composed of 18650 cylindrical cells. The considered frame is manufactured in Al 6082 alloy according to the lost-PLA replication method. With a double extruder 3D printer it is possible to make polymer-based samples of the lost model. Through CAD modeling, different geometries can be replicated in order to get PLA samples. PLA foams are inserted into a plaster mix, and successively the polymer is thermally burned. The final step consists of the gravity casting of the Al-alloy in the plaster form, obtaining the metal foam-based frame with the same geometry as the 3D-printed PLA foam. The electro-thermal behavior of the cells is investigated with a laboratory test bench in natural convection conditions, with and without the metal foam support to highlight its effect. Specific thermal stress analyses have been performed through charging/discharging pulsed current profiles. Thermal imaging is used as non-contact diagnostics, to detect battery pack and frame temperature without interfering with the heating process. Experimental results highlight the advantages of using the considered metal foam in terms of temperature gradient for the battery pack under investigation. These advantages, combined with the structural characteristics of the metal frame, provide useful insight for future improvements.
Zero Emission Hydrogen Internal Combustion Engine for a 5 kW Mobile Power Generator: Conversion Strategy for Carburetted SI Engines
Authors: Bättig Rik Joël , Jasper Trevor , Hardalupas Yannis , Taylor Alexander , Dimopoulos Eggenschwiler Panayotis
Published: August 2023

A carburetted, spark ignited gasoline fuelled engine of a 5 kW rated power generator was converted to run on hydrogen. As opposed to large parts of current research, the engine conversion’s foremost goal was not to maximise efficiency and power output but rather to find a cost-effective and low-complexity conversion approach to introduce clean fuels to existing engines.

To allow for the increased volumetric fuel flow, the riser of the original carburettor was enlarged. The hydrogen flow into the venturi was metered with the help of a pressure regulator from a widely available conversion kit. The effects of different hydrogen-fuel-feed pressures on engine performance, operational stability and emission levels were examined experimentally.

It was found that the hydrogen-line pressure before startup has to be set precisely (±5 mbar) to allow for stable and emission free operation. While the rated power of the converted engine was lowered to 57% of the original’s generator, efficiency was increased by up to 9 percentage points while lowering NOx emissions drastically. In fact, under stable hydrogen supply conditions, it was shown that an average concentration of only 19 ppm NOx is feasible without any exhaust gas aftertreatment. An analytic derivation of lambda values from emission data has been examined. With a fairly constant offset of 4.3% between the measured and calculated lambda value, the stoichiometrically derived formula for lambda proved to yield precise results with little calculation effort.

As a main limiting factor for continuous low emission levels, pressure fluctuations in the hydrogen supply line were identified to strongly influence the fuel flow rate leading to inconsistent air-to-fuel ratios. Furthermore, large, abrupt reductions in engine load were identified to be critical regarding running stability and backfiring events.
Investigation via Finite Element Analysis of the Influence of Boiling on the Thermo-Structural Behavior of the Engine Head of a High-Performance Combustion Engine
Authors: Piergiacomi Andrea , Barbieri Saverio Giulio , Renso Fabio , Mangeruga Valerio , Giacopini Matteo
Published: August 2023

This paper presents a numerical methodology for studying the effect of boiling on the structural behavior of high-performance internal combustion engines. Boiling occurs when the portion of engine coolant in contact with hot walls reaches high temperatures and vapor bubbles form. While incipient vaporization of the coolant can promote additional cooling, excessive vapor can act as an insulator and lead to potentially dangerous high temperatures in the engine. Boiling is typically analyzed using Computational Fluid Dynamic Analyses, which are usually computationally intensive. In this study, the authors propose a Finite Element methodology that combines semi-empirical formulations, less demanding than Computational Fluid Dynamic models, with thermal Finite Element simulations to detect and manage boiling. Two different empirical formulations for boiling were employed, proposed by Garro and Chen respectively, and their results were compared. Three thermal analyses were conducted: the first neglected the effect of boiling, which leads to results inconsistent with the assumption of single-phase fluid, while in the second and third simulations, the occurrence of boiling and its effects were managed using the Garro and Chen formulations. The results showed a significant decrease in wall temperatures around the regions where boiling was detected and a parallel reduction of the thermal gradients inside the component. The two semi-empirical approaches for boiling estimation produced similar results, suggesting their substantial equivalence. Then, the temperature fields obtained were employed in structural Finite Element Analyses to evaluate the effects of boiling on the fatigue life of the engine head. In the structural analyses, the more uniform thermal field leads to a reduction of thermal deformations and to a different stress state, affecting the safety factor distribution. This methodology has the potential to be a suitable tool for detecting boiling and its effect during the early stages of engine design.
Fogo no Cerrado em terras indígenas Xerente (Tocantins): pesquisa de opinião em comunidade indígena
Authors: Carvalho Edmar Vinícius de , Oliveira Lucicléia Mendes de , Cachoeira Jader Nunes , Silva Allan Deyvid Pereira , Batista Antônio Carlos , Giongo Marcos , Santos André Ferreira dos
Published: August 2023

O objetivo do trabalho foi avaliar o conhecimento de aspectos do fogo no Cerrado pelos indígenas da terra indígena Xerente (Tocantins). Ao todo, 28 aldeias foram visitadas e 32 respostas foram obtidas por meio de questionário, que foram submetidos às análises de fatores e descritivas. As aldeias visitadas podem ser caracterizadas por possuírem produção agropecuária, terem utilizado o fogo e reconhecerem a importância de cursos na área. Numa das análises de fatores, as respostas de 12 perguntas foram divididas em cinco grupos e, em outra, foram formados três grupos com base nas respostas a oito perguntas. Uma das relações observadas foi de que 56% dos entrevistados disseram ter conhecimento da existência de cursos de prevenção e combate ao fogo, os quais, porém, não estão de acordo com as suas necessidades. Outra relação positiva observada foi sobre o conhecimento do conceito de queima controlada, a divisão da propriedade para queimada, os locais que não devem ser queimados e os usos tradicionais do fogo. Foi possível verificar que os indígenas da região utilizam o fogo para diversos fins e que os malefícios decorrentes do uso inadequado são vistos no ambiente ou na produção econômica, e não de forma direta nos seres humanos.
Coinfection of Monkeypox, COVID-19 and Syphilis in a PrEP using MSM: A case report from Barcelona
Authors:   Andrology Department, Fundació Puigvert Barcelona, Spain, Vives Alvaro
Published: August 2023

Monkeypox virus (MPXV) is a zoonotic disease, with endemic circulation and it’s not considered a sexually transmitted infection. Recently, it has been reported a particularly high incidence among men who have sex with men (MSM). We report the first case of a male HIV-negative patient with HIV Pre-Exposition Prophylaxis (PrEP), and a simultaneous coinfection of Monkeypox Virus, COVID-19 and Syphilis.
Association between Provider-Patient Relationship, Communication, Accessibility Convenience, and Perceived Quality of Care from Patients Living with HIV before and during SARS-Cov-2 Pandemic
Authors:   Department of Healthcare and Management, Franklin University, Columbus, OH, USA, Caldwell Elisha
Published: August 2023

OBJECTIVE The study aims to determine the risk factors for endometrial hyperplasia and endometrial cancer in patient with abnormal uterine bleeding and thus early diagnostic investigations to detect the disease and limit its development. DESIGN Primary data were collected from an infectious disease clinic outpatient setting using the PSQ-18 short form. The data were collected between February and March 2021. The study population included (a) non-institutionalized individuals, (b) individuals aged 18 years and older, (c) individuals living with HIV/AIDS, and (d) individuals who had had a provider visit in the past 12 months at an infectious disease clinic. METHODS Multiple regression was used to assess the relationship between the dependent and independent variables using a cross-sectional quantitative analysis. RESULTS The study revealed a statistically significant relationship between PPR and perceived quality of care from the perspective of patients living with HIV before and during the SARS-CoV-2 pandemic. CONCLUSION The study results indicated that overall provider-patient relationship (PPR), communication, accessibility, and convenience were related to perceived quality of care. The study findings also revealed that PPRs can uniquely impact perceived quality of care. Provider accessibility was also found to uniquely impact a patient’s perceived quality of care. Finally, the study results demonstrated that HIV patients who have a good relationship with healthcare providers and a high level of satisfaction tend to perceive high-quality healthcare.
Alternative Periodic System of the Elements
Authors:   University of Niš, Faculty of Science and Mathematics, Department of Chemistry, Kostić Danijela , Krstić Nenad ,   University of Niš, Faculty of Science and Mathematics, Department of Chemistry, Blagojević Marina ,   University of Niš, Faculty of Science and Mathematics, Department of Chemistry
Published: August 2023

For more than 150 years since the discovery of the periodic table of elements, there has been a need for its constant supplementation and improvement. As a result, today there are over 700 different periodic systems that aim to present the position of the elements more simply, effectively in the periodic table, their interrelationships and the possibility of building different compounds. In addition to two- dimensional, both three- and four-dimensional systems of elements have appeared. All of them, in addition to their great didactic significance, also have great scientific significance and represent guidelines for scientists in various multidisciplinary research. The exploration of new elements of both a more perfect and a comprehensive periodic table continues.
The Influence of Metal Microelements, Colloids and Organic Phase on Physical-chemical Properties and Processes in Peloids
Authors:   University of Kragujevac, Faculty of Technical Sciences, Čačak, Purenović Jelena , Purenović Milovan M. ,   University of Niš, Faculty of Science and Mathematics, Department of Chemistry, Ranđelović Marjan S. ,   University of Niš, Faculty of Science and Mathematics, Department of Chemistry
Published: August 2023

The main emphasis in this study was on the modification of peloid characteristics through maturation processes, physical-chemical analysis of salty geothermal water and intact geomaterial, content of toxic heavy metals, radionuclides, and microorganisms in matured peloid, and physical-chemical processes that occur in a highly heterogeneous and microheterogeneous system solid-water. Main processes were considered to be mass transfer, colloidal processes, adsorption and surface compounding by macro- and micronutrients from salty mineral water with surface groups of intact geomaterial. This study indicated that inorganic and organic components of peloid could be in the form of colloids, suspended macro- and microparticles, ions and molecules. Colloidal silica had special importance in peloids. Due to low maximum solubility of silica, there were a number of processes in which coagulated and floculated particles were created during maturation, especially in the presence of metal cations (e.g., Fe3+ and Al3+) and colloidal metal hydroxides which noticeably reduced the solubility of silica. Single charged alkali metal cations caused coagulation of colloidal silica occupying bridging positions between negatively charged colloidal particles. Colloidal silica in peloid together with other micro- and macro phases, and with the help of numerous microelements, comes in interaction, building a complex surface and occluded compounds. In the multiphase system, very complex organic and inorganic compunds are formed, which are important for therapeutic purposes.
PLASMA TREATMENT OF TITANIUM DIOXIDE FILM FOR BLACK TiO2
Authors: Frolova E.K. , Khomych V.O. , Kravchuk R.M. , Kolomys O.F. , Gudenko Yu.M. , Pylypchuk O.S. , Styopkin V.I. , Dobrovolskiy A.M.
Published: August 2023

The results of the treatment of TiO2 film in volume discharge with an Ar/H2 mixture are presented. The treated film demonstrates the changes in transparency and conductivity. Raman spectra show no changes in the phase state of the film after plasma treatment.
AgriAdapt: Strategies for Participatory Design and Development of a Climate Risk Tool
Authors: Tuur Tea , Beal Catherine , Kapoor Kritika , Tye Stefanie , Hess Meredith
Published: August 2023

This paper documents the participatory approach taken to design and development AgriAdapt, a free map-based climate risk assessment tool for agricultural value chains. Guided by the Principles for Digital Development, a diverse team of stakeholders both within and beyond WRI was mobilized to co-create AgriAdapt (beta). The paper also describes five key aspects of the project that enabled participatory design and development, and includes lessons for the future.
Analysis of Emotional Intelligence and Work Stress on Nurse Performance at Rsi Darus Syifa’ Surabaya
Authors:   Department of Management, Faculty of Economics and Business, National Development University ", Abdurrohman Muhammad Fikri ,   Veteran",   of East Java, Kustini Kustini ,   Department of Management, Faculty of Economics and Business, National Development University "Veteran" of East Java
Published: August 2023

The significance of performance in generating human resources needs to be supported by employees' emotional intelligence and effective work-related stress management. This is essential for employees to effectively master and responsibly execute their tasks. The objective of this research is to determine the influence of emotional intelligence and work-related stress on the performance of nurses at RSI Darus Syifa' Surabaya. The sampling technique employed was probability sampling, specifically the simple random sampling technique utilizing the Slovin Formula. This resulted in a sample size of 51 nurses being selected. The research method employed for this research is a quantitative research method. The data analysis technique utilized in this research is Partial Least Squares (PLS). The research findings indicate that emotional intelligence and work-related stress have an impact on the performance of nurses at RSI Darus Syifa' Surabaya.
The Influence of Motivation, Compensation, and Workplace on Employee Performance at PT. UMC Suzuki Surabaya
Authors:   Management Study Program, Faculty of Economics and Business, National Development University ", Putri Aqila Nafisa Dean ,   Veteran",   of East Java, Santoso Bowo ,   Management Study Program, Faculty of Economics and Business, National Development University "Veteran" of East Java
Published: August 2023

Human resources play a crucial role in the success of an organization or firm. This study has the purposes to determine the influence of motivation, compensation, and Workplace on employee performance. The population and sample for this study consist of 60 marketing department employees of PT. UMC Suzuki Surabaya. The study method employed in this study is quantitative, involving the direct distribution of questionnaires to respondents, and the assessment technique utilizes a Likert scale ranging from 1 to 5 to measure the variables. The data analysis technique utilized was Partial Least Squares (PLS) analysis. According to the study outcomes, motivation, compensation, and Workplace have a Remarkable contribution to enhancing the employee performance at PT. UMC Suzuki Surabaya.
The Effect of Financial Literacy, Investment Knowledge, and Minimum Capital on Student Interest in Investing in the Capital Market
Authors:   Management Study Program, Faculty of Economics and Business, UPN “Veteran” Jawa Timur, Indonesia, Febrianti Novia , Takarini Nurjanti ,   Management Study Program, Faculty of Economics and Business, UPN “Veteran” Jawa Timur, Indonesia
Published: August 2023

Investment interest is a person's intense desire to learn everything about investing. The aim of this study is to examine the effect of financial literacy, investment knowledge, and minimum capital on student interest in investing in the capital market. The quantitative method of distribution of questionnaires was utilized for the research. The population in this study consisted of 3,743 students from the Faculty of Economics and Business at Universitas Pembangunan Nasional "Veteran" Jawa Timur, with a sample size of 100. The sample was drawn using the proportional stratified random sampling method using the Slovin formula. The data analysis method used was Partial Least Squares (PLS). According to the study's findings, financial literacy and minimum capital has an effect on investment interest. Meanwhile, investment knowledge has no effect on investment interest.
Comparative Study of the Different Therapeutic Strategies of Stroke Patients in the Spanish Health System: About a Bibliographic Narrative Review
Authors:   Physiotherapy, Nursing and Physiology Department, Faculty of Health Sciences, University of Castilla-La Mancha, 45600 Toledo, Spain, Astasio-Picado Álvaro
Published: August 2023

Stroke is a focal or general neurological pathology of sudden onset. This condition is usually of vascular origin. It is considered a medical emergency, which requires rapid action and its evolution and cure is time-dependent, which requires immediate decisions based on evidence. The most widely used treatment is reperfusion by fibrinolysis. Objective: to compare the therapeutic strategies in the management of the stroke care plans of the different autonomies of the Spanish territory.
Analysis of numerical integration schemes for the Heston model: a case study based on the pricing of investment certificates
Authors: Fusaro Michelangelo , Giribone Pier Giuseppe ,   BPER Banca,   University of Genoa, Italy, Tissone Alessio
Published: August 2023

The Heston model is one of the most used techniques for estimating the fair value and the risk measures associated with investment certificates. Typically, the pricing engine implements a significant number of projections of the underlying until maturity, it calculates the pay-off for all the paths thus simulated considering the characteristics of the structured product and, in accordance with the Monte Carlo methodology, it determines its theoretical value by calculating its mean and discounting it at valuation time. In order to generate the future paths, the two stochastic differential equations governing the dynamics of the Heston model should be integrated simultaneously over time: both the one directly associated with the underlying and the one associated with variance. Consequently, it is essential to implement a numerical integration scheme that allows such prospective simulations to be implemented. The present study aims to consider alternatives to the traditional Euler method with the aim of reducing or in some cases eliminating the probability of incurring unfeasible simulated values for the variance. In fact, one of the main drawbacks of the Euler basic integration scheme applied to the Heston bivariate stochastic model is that of potentially generating negative variances in the simulation that should be programmatically corrected each time such undesired effect occurs. The methods which do not intrinsically admit the generation of negative values of the variance proved to be very interesting, in particular the Transformed Volatility scheme.
Role of Sestrin 1 in Women with Polycystic Ovary Syndrome
Authors: Assala Abdullah Abd n lhusseiAbd_ A , Kaem Ghosoun Ghanem , Hasan Liqaa Hameed
Published: August 2023

Polycystic ovary syndrome (PCOS) is a common reproductive endocrine disorder that affects at least 10% of women of reproductive age. Cystic ovaries, low or absent ovulation, and high circulating testosterone levels are the the group of symptoms that define polycystic ovary syndrome (PCOS).The aim of study: To investigate whether sestrin 1 can serve a prognostic indicator in polycystic ovary syndrome. The study included 100 women  with age ranged between (18 – 44) years involving 70 PCOS patients and 30 apparently healthy women as a control in reproductive age, at the reproductive fertility consultant of gynecological and obstetric teaching hospital, Kerbala health directorate Iraq and College of Applied Medical Sciences, University of Kerbala Iraq during the duration from October ., 2022 to April, 2023. The Rotterdam criteriOn-2003 was presumed to PCOS females. The result showed there were highly significant decreasing in woman with PCOS in contrast to woman without PCOS. According to BMI showed highly significant in the overweight at( P =0.001) whereas in the obesity at( P= 0.004) and normal weight at (P= 0.004). According to age showed highly significant in age group (18_23) while  in the age group( 24_29)at (P =0.000) and age group (30_35) at (P=0.006)  whereas age group (36_41) at( P=0.274) The conclusion indicated that reduced serum sestrin 1 levels may be has potential as a new PCOS diagnostic biomarker .
Evaluation of some immunological parameters for Staphylococcus xylosus infections in patients with Systemic lupus erythematosus
Authors: Burhan Burhan T. , Abdul-Hassan Layla S.
Published: August 2023

Purpose: Systemic lupus erythematosus (SLE) is a chronic, systemic autoimmune illness that manifests clinically as well as immunologically and in several lab tests abnormalities. Patients with SLE frequently get infections, which account for 30–50% of morbidity and death. The bacterial species Staphylococcus xylosus is a member of the Staphylococcus genus. This study's objective was to assess several immunological indicators of S.xylosus infections in individuals with systemic lupus erythematosus in the Najaf Governorate of Iraq.
Subjects and Methods: Blood samples were taken from 60 SLE patients ranging in age from 16 to 56. Each patient has had a sample of 10 milliliters of blood taken. 5 ml were used to measure immunologic parameters, and another 5 ml were used to diagnose S. Xylosus by culturing a sample on blood agar and mannitol salt agar. culture on mannitol salt agar and blood agar.
Results: According to the microbiological tests, 26 specimens (or 43.3%) had isolated bacteria, whereas 34 specimens (or 56.7%) had no sign of bacterial growth. Out of the 26 blood samples collected, S.xylosus was detected in 2 samples. normal amounts of ANA and anti ds-DNA despite SLE sufferers. The results of this study showed that serum levels of CD69, IL-21, and IL-35 significantly increased when compared with controls, despite a substantial drop in Hb, WBC, and platelet counts but an elevated ESR.
Conclusions: xylosus produces normal autoantibody levels that are utilized to diagnose SLE. An important factor in the pathophysiology of SLE, which causes the disease to develop, is a high concentration of inflammatory cytokines.
PENERAPAN KEBIJAKAN HUKUMAN MATI TERHADAP KORUPTOR DALAM PEMBERANTASAN TINDAK PIDANA KORUPSI PERSPEKTIF HAK ASASI MANUSIA
Authors: Rinaldi Asrul , Marzuki Marzuki , Mukidi Mukidi
Published: August 2023

Penerapan hukuman mati terhadap pelaku korupsi masih menimbulkan perdebatan-perdabatan di kalangan ahli. Rumusan masalah dalam penelitian dalam tesis ini adalah  bagaimana pengaturan pidana mati dalam Undang-Undang Pemberantasan tindak pidana korupsi, faktor-faktor apakah yang mempengaruhi penerapan pidana mati dalam tindak pidana korupsi, bagaimana kebijakan hukum pidana dalam  penerapan ancaman pidana mati dalam tindak pidana korupsi. Hasil pembahasan menyimpulkan bahwa Faktor-faktor yang mempengaruhi penerapan pidana mati dalam tindak pidana korupsi sulit diterapkan terutama pada unsur kondisi darurat. Kebijakan hukum pidana dalam  penerapan ancaman pidana mati dalam tindak pidana korupsi di Indonesia saat ini masih banyak terdapat kelemahan-kelemahan, seperti alasan teknis juridisnya, sehingga masih sangat sulit untuk diterapkan saat ini. Belum ada satupun kasus tindak pidana korupsi yang dijatuhi pidana mati
Tugas dan Wewenang KOMPOLNAS dalam Pengawasan Fungsional terhadap Kinerja Penyidik POLRI
Authors: Dharma I Putu Satya , Parman Lalu , Ufran Ufran
Published: August 2023

Dasar Hukum Kewenangan KOMPOLNAS di atur dalam Pasal 38 ayat (2) Undang-undang Nomor 2 Tahun 2002 tentang POLRI dan Peraturan Presiden Nomor 17 Tahun 2011 tentang KOMPOLNAS Pasal 7 yang memiliki kewenangan yang sama yaitu mengumpulkan dan menganalisis data, memberikan saran dan pertimbangan lain kepada Presiden dan menerima saran dan keluhan dari masyarakat mengenai kinerja kepolisian dan menyampaikan kepada Presiden dan Peraturan Kapolri Nomor 12 Tahun 2009 tentang Pengawasan dan Pengendalian Penanganan Perkara Pidana di Lingkungan  POLRI Pasal 3–4 dan Pasal 133-138. Kewenangan eksternal (KOMPOLNAS) dan kewenangan internal (Wassidik dan Propam) dalam pengaturannya jika ditelisik berdasarkan dasar hukumnya tidak terdapat konflik kewenangan walaupun KOMPOLNAS sebagai lembaga pengawas independen memiliki peran dalam melakukan pengawasan terhadap kinerja POLRI secara umum termasuk juga didalamnya terkait penyidikan yang dilakukan penyidik POLRI. Namun di satu sisi, Wassidik dan Propam juga memiliki peran dalam mengawasi penyidikan tersebut. Hal ini dalam praktiknya bisa saja terjadi jika terdapat interpretasi atau perbedaan pandangan yang berkaitan dengan pengawasan penyidikan yang meliputi prosedur, standar atau kebijakan lain yang berlaku dalam penyidikan, sehingga diperlukan koordinasi antara KOMPOLNAS dengan POLRI. Ruang lingkup pengawasan fungsional KOMPOLNAS terhadap kinerja POLRI adalah terbatas pada fungsi Sumber Daya manusia (SDM) yaitu kegiatan pemantauan dan penilaian terhadap kinerja dan integritas anggota dan pejabat POLRI sesuai dengan ketentuan Perundang-undangan. Pengawasan yang dilakukan terhadap penyidik POLRI ruang lingkupnya terbatas pada pengawasan internal yang dilakukan oleh Perwira Pengawas.
Aspek Pengubah Hukum dari Segi Sosial Budaya
Authors: Fadillah Jihan , Ritonga Indah Irawan , Yusnita Windy , Putra Muhammad Arya , Munthe Indra Kumalasari
Published: August 2023

The law aims to coordinate the activities of community members where these activities always change according to changes in society. Therefore the law feels obliged to intervene more seriously and directly in the form of legal rules. This research is research literature using a descriptive qualitative approach. Social change in a society in this world is a normal thing, which is not normal even if there is no change. Likewise with law, the law used in a nation is a reflection of the social life of the society concerned. By paying attention to the character of a law that applies in a society (nation), the character of social life in that society will also be seen. Abstrak: Hukum bertujuan untuk mengkoordinir aktivitas-aktivitas warga masyarakat di mana aktivitas-aktivitas itu senantiasa berubah sesuai dengan perubahan masyarakat. karena itu hukum merasa berkewajiban turut campur secara lebih serius dan langsung dalam wujud kaidah-kaidah hukum. Penelitian ini adalah enelitian literature dengan menggunakan pendekatan kualitatif deskriptif. Perubahan sosial dalam suatu masyarakat di dunia ini merupakan suatu hal yang normal, yang tidak normal justru jika tidak ada perubahan. Demikian juga dengan hukum, hukum yang dipergunakan dalam suatu bangsa merupakan pencerminan dari kehidupan sosial suatu masyarakat yang bersangkutan. Dengan memperhatikan karakter suatu hukum yang berlaku dalam suatu masyarakat (bangsa) akan terlihat pula karakter kehidupan sosial dalam masyarakat itu.
Edukasi Penyakit Infeksi Pada Anak Dan Demonstrasi Pengolahan Jahe Dalam Meningkatkan Imunitas Tubuh Masyarakat Di Kelurahan 13 Ulu Palembang
Authors: Rohani Siti , Kesuma Putri Zalika Laila Mardiah , Al Farizi Ahmad Bayu , Zilda Malika , Umar Muhammad
Published: August 2023

Penyakit infeksi adalah penyakit yang disebabkan oleh patogen berupa virus, bakteri, parasit, maupun jamur. Penyakit ini bisa terjadi pada anak-anak serta orang dewasa. Salah satu upaya pencegahan penyakit infeksi dengan cara memanfaatkan tanaman herbal yaitu jahe. Jahe berfungsi sebagai antioksidan, antipiretik, anti-inflamasi, antimikroba maupun antivirus. Kegiatan pengabdian masyarakat ini berlokasi di Kelurahan 13 Ulu Palembang. Melalui kegiatan ini diharapkan para ibu yang memiliki anak balita mendapatkan pengetahuan mengenai penyakit infeksi dan upaya pencegahannya.  Kegiatan ini berupa penyuluhan secara langsung mengenai penyakit infeksi pada anak, jenis- jenis penyakit infeksi, serta upaya pencegahannya yang kemudian dilanjutkan dengan demonstrasi pembuatan olahan herbal jahe dalam bentuk makanan dan minuman yang dapat dikonsumsi oleh anak-anak hingga orang dewasa. Pengukuran tingkat pengetahuan peserta dilakukan melalui pre-test dan post-test menggunakan kuisioner yang terkait dengan materi penyuluhan dan demonstrasi kepada 22 orang peserta. Hasil pengukuran didapatkan peningkatan pengetahuan peserta dari 22,7 % menjadi 72,7%. Peserta antusias mengikuti kegiatan serta aktif pada sesi diskusi. Seluruh peserta mengikuti proses penyuluhan dan demonstrasi hingga selesai. Selain itu minuman dan makanan yang dibuat pada sesi demonstrasi telah dicoba dan dapat diterima karena rasanya enak. Kegiatan pengabdian masyarakat dapat meningkatkan pengetahuan dan kesadaran masyarakat mengenai penyakit infeksi dan pencegahannya menggunakan jahe.
Empowering Local Communities: Promoting Financial Management in Village-Owned Enterprises (BUM Desa) for Sustainable Tourism Development
Authors: Hakiki Moh. Saiful , Adinugroho Mukhtar , Fajariansyah Muhammad Dwi , Safiq Moh. Nur
Published: August 2023

Local communities have increasingly become players that have significant roles in the tourism sector, utilizing their unique cultural and natural resources to attract visitors and stimulate local economic growth. Village-Owned Enterprises (BUM Desa) play a crucial role in driving sustainable tourism development by allowing local communities to actively participate in managing and benefiting from tourism activities. However, effective financial management within these enterprises remains a critical aspect that requires attention and improvement. This journal manuscript presents the outcomes of a community service activity conducted to address the financial management challenges faced by Village-Owned Enterprises in the tourism sector. The community service activities involved a series of workshop sessions aimed at providing practical guidance and insights to BUM Desa representatives. These sessions were supplemented by the publication of a book titled "Financial Management of Village-Owned Enterprises in the Sector of Tourism" and an article in the mass media platform Kumparan about the workshop activities. Through these efforts, local communities were equipped with the necessary tools and knowledge to make informed financial decisions, optimize revenue generation, and mitigate financial risks. By improving financial literacy, we can unlock the full potential of local tourism, leading to sustainable economic growth, social empowerment, and enhanced community well-being.