bluuebunny/crossref_metadata_2025 huggingface dataset:
ETOPS Operations Applied to Helicopters
Authors:   Leonardo Helicopters, Ragazzi Matteo , Dossena Giorgio , Barosio Francesca , Talbot Nigel
Published: August 2024

Rotorcraft operations have come under scrutiny over recent years because of their safety record compared to that of fixed wing platforms, especially for Commercial Air Transport. In the framework to improve the safety level, this paper explores the application of a model used successfully for fixed wing Commercial Air Transport consisting of the introduction of Extended Twin Operations (ETOPS) airworthiness and operations standards leveraging on the successful safety record since their introduction on intercontinental flights in 1985.
Estimating On-condition Direct Maintenance Cost (DMC)
Authors:   Bell, Munene Isaac
Published: August 2024

Aftermarket support has become a key component of cost and competitiveness in the rotorcraft industry. Both the operator and the rotorcraft manufacturer play a role in aftermarket support. Many rotorcraft original equipment manufacturers (OEMs) are offering fixed price maintenance service programs in their after-market support programs. Since product support may last well over two decades, the desire for low direct operating cost (DOC) and lower life cycle cost (LCC) has become a more visible consideration in the rotorcraft design phase. Direct maintenance cost (DMC), forms a significant part of the DOC and LCC. A subset of DMC, On-condition maintenance cost is a category with unspecified maintenance intervals and presents one of the more challenging estimating efforts, particularly on a new rotorcraft program with no history. The approach used for estimating maintenance costs can strongly influence decision making within the OEM while also educating the customer on better maintenance philosophy and planning. Incorrectly minimizing or excluding the effect of on-condition cost (within the DMC estimate) could have a profound impact on operator and service organizations of the OEM. This paper presents a high-level discussion on the potential refinements that can be made to the Helicopter Association International’s Economic Committee’s Guide for the Presentation of Helicopter Operating Cost Estimates 2010. Estimating the on-condition direct maintenance cost for airframe manufacturers is the focus of the discussion.
Fatigue Life Prediction of Flaw-Tolerant Damaged Rotorcraft Structures
Authors:   Naval Air Systems Command, Rusk David ,   ESRD Inc., Actis Ricardo , Szabó Barna
Published: August 2024

A phenomenological model has been developed to predict the remaining useful life of flaw-damaged Ti-6Al-4V Beta-STOA titanium and 7075-T73 aluminum rotorcraft components. The model extends the use of traditional notched fatigue analysis methods that were developed for machined notches, down to the scale of small surface flaws such as dents, dings, scratches, gouges and corrosion pits. The highly stressed volume in the vicinity of flaws is used for reference in the model calibration. This eliminates the requirement to define an equivalent notch root radius for an arbitrary flaw shape. Calibration of the model was performed using sets of dogbone fatigue coupons with embedded surface flaws. Validation of the model was performed using other sets of dogbone and double-edge notched tension (DENT) flawed coupon fatigue test data, under both constant-amplitude and spectrum loading. Validation results have shown that the model provides reasonably accurate life predictions within the range of calibration of the model, when compared to a reference S-N working curve. The analytical capability demonstrated here has important implications for current life management practices of rotorcraft dynamic components. Fatigue life prediction of flaw damaged components is a key enabling technology for the application of Condition Based Maintenance (CBM) practices to rotor system structures.
Closed Loop Approach to Structural Health Monitoring of Critical Rotorcraft Components
Authors:   Georgia Institute of Technology, Shah Aarohi , Gunderson Katelyn , Rimoli Julian , Ruzzene Massimo
Published: August 2024

We present a model-based structural health monitoring approach to mitigate fatigue damage of critical rotorcraft components in real time. The overall concept is demonstrated with aerodynamic loads for a utility helicopter similar to the UH-60 Black Hawk and a structural model of the main rotor's pitch link. The potential of reducing computational costs associated with modeling by utilizing a quasi-static analysis was considered in this study, however, it was concluded that a dynamic analysis was indeed necessary to accurately capture the inertial effects of the vehicle. Maximum stress results extracted from the model can be sent to a controller to apply a load alleviation control scheme to appropriately modify the input to the rotorcraft controls and reduce air loads to the vehicle. The modeling, analysis, and load alleviation process were also automated. We also completed an investigation into the impact of vehicle control input parameters on stress experienced by the component.
Bell V-280 Valor: A Flight Test Update
Authors:   Bell, Ehinger Ryan , McMenemy Matt , Wilson Paul
Published: August 2024

The Bell V-280 Valor is Bell's next-generation tiltrotor, designed, built, and tested to provide a revolutionary capability in vertical lift while informing the affordability and mission performance needs of a Future Vertical Lift program of record. The V-280 Valor Joint Multi Role Technology Demonstrator (JMR-TD) entered flight test with its First Flight on Dec 18, 2017 following extensive Safety of Flight component tests, systems integration lab (SIL) development, aircraft assembly, functional tests, and restrained ground runs. The partnership between Bell and the US Army spanned all phases of the V-280 design, assembly, and testing, including experimental flight testing by a US Army pilot on February 7, 2018. The V-280 Valor demonstrates the incorporation of advanced technology on an advanced rotorcraft platform, now undergoing validation testing and envelope expansion. In the coming months, flight testing will continue toward the demonstration of its Key Performance Parameters (KPPs).
Modal Analysis of the Cycle-to-Cycle Variations Observed in Dynamic Stall
Authors:   University of Wyoming, Harms Tanner , Nikouccyan Pourya , Naughton Jonathan
Published: August 2024

An experiment was conducted on a two-dimensional SC1094R8 airfoil model with the intention of investigating the cycle-to-cycle variations observed in dynamic stall. Unsteady surface pressure measurements were recorded at numerous points along the airfoil surface at specific pitching conditions that displayed more than one preferred reattachment process. Sets of individual cycles that represented the dominant reattachment processes were identified and compared to the phase-average, showing significant differences in pressure distributions and aerodynamic loads. Proper Orthogonal Decomposition was then employed to the unsteady pressure distributions with the intent of isolating the influence of specific modes on the cycle-to-cycle variations. The results indicate that the importance of the modes changes depending on the particular reattachment process observed. Approved for public release: distribution unlimited. Review completed by the AMRDEC Public Affairs Office (PR3 3750, 10 April 2018).
A Methodology towards Rotorcraft Piloting Autonomy for Approach on Moving Offshore Platforms
Authors:   Technical University of Munich, Halbe Omkar , Hajek Manfred
Published: August 2024

Helicopter operation on moving offshore platforms poses a challenge in terms of human factors and flight control. Higher control modes are essential to relieve pilot workload and enable autonomous shipdeck recovery. This paper focuses on control laws for fully autonomous approach guidance from cruise to relative hover on a moving shipdeck. First, the engagement geometry of a typical helicopter-ship combination is described. An instrument-like procedure including arrival and approach phases is defined and the necessary conditions for successful guidance based on ground track, altitude and ground speed parameters are specified. Second, outer loop control laws for real-time generation of the flight path vector commands are developed. The control laws use state feedback from the helicopter-ship system. Control gains are defined in terms of the distance to next waypoint to achieve smooth and gradual state tracking. Third, a model-based inner loop control is implemented to command the required collective, cyclic and pedal inputs for accurate flight path vector tracking, stabilization and axes cross-coupling compensation tasks. Simulation studies are performed using a comprehensive real-time capable helicopter flightmechanics code. Operational scenarios with nominal approach and steep approach profiles are simulated in still air and in wind up to 30 knots with gusts. Simulation results have demonstrated precise tracking of the shipdeck's position, course and speed with robustness to wind gusts and the feasibility to fly steep approaches.
Human-intuitable Collision Avoidance for Autonomous and Semi-Autonomous Aerial Vehicles
Authors:   Pennsylvania State University, Lakhmani Sagar , Langelaan Jack , Wagner Alan
Published: August 2024

This paper addresses the problem of path planning and collision avoidance for multiple aerial vehicles. We develop an algorithm that is scalable, operates in real-time, and is implementable on a UAV's onboard computers. Our method makes use of velocity-based potential field methods for collision avoidance. Potential field methods utilize attractive and repulsive potential to guide the robot towards the goal. We demonstrate the system in a simulation involving 50 vehicles. Next, on physical platforms, we conduct experiments with two and three UAVs capturing the system's ability to avoid other moving vehicles and measuring closest approach. We find that the UAVs not only avoid the collisions but also maintain a minimum distance specified. This method can be used in the future for trajectory planning of multiple aerial vehicles in dense airspaces.
The amount of DNA and RNA in primary cancer cells and their metastases
Authors: Herasymenko Oleksandr , Gerasymenko Kostyantyn , Herasymenko Olha
Published: August 2024

Considering the significant impact of oncopathology on global morbidity and mortality, as well as changes in its prevalence and typology, research into the molecular-genetic mechanisms of oncogenesis and metastasis, particularly the role of nucleic acids, becomes crucial. The aim of this study is to determine the content of DNA and RNA in cells of primary cancer and its metastases through microspectrophotometric analysis of malignant cells collected from 30 patients with primary and metastatic oncological processes. The following methods were employed: microspectrophotometric analysis using the automated complex “Protva-PM11-DVK-3m,” staining of histological specimens with halo cyanin-chrome alum, the discrete statistics method, frequency and cluster analysis, and the bibliographic method. Changes in the concentration of nucleic acids in the cells of primary and metastatic tumors were identified during the study. The changes did not always correlate with each other, indicating morphofunctional polymorphism in tumor cell populations. A trend towards a decrease in nuclear RNA concentration and an increase in cytoplasmic RNA concentration in metastases were observed, suggesting alterations in metabolic and synthetic processes in cells and a decrease in their differentiation degree.
Table of Contents Vol 12, No 2 (2024)
Authors: Office Editorial
Published: August 2024

N/A
Gadoxetic acid-enhanced magnetic resonance imaging in the assessment of hepatic sinusoidal obstruction syndrome in a mouse model
Authors: Chen Yuan-Yuan , Yang Li , Li Jun , Rao Sheng-Xiang , Ding Ying , Zeng Meng-Su
Published: August 2024

BACKGROUND

Neoadjuvant chemotherapy can cause hepatic sinusoidal obstruction syndrome (SOS) in patients with colorectal cancer liver metastases and increases postoperative morbidity and mortality.

AIM

To evaluate T1 mapping based on gadoxetic acid-enhanced magnetic resonance imaging (MRI) for diagnosis of hepatic SOS induced by monocrotaline.

METHODS

Twenty-four mice were divided into control (n = 10) and experimental (n = 14) groups. The experimental groups were injected with monocrotaline 2 or 6 days before MRI. MRI parameters were: T1 relaxation time before enhancement; T1 relaxation time 20 minutes after enhancement (T1post); a reduction in T1 relaxation time (△T1%); and first enhancement slope percentage of the liver parenchyma (ESP). Albumin and bilirubin score was determined. Histological results served as a reference. Liver parenchyma samples from the control and experimental groups were analyzed by western blotting, and organic anion transporter polypeptide 1 (OATP1) was measured.

RESULTS

T1post, △T1%, and ESP of the liver parenchyma were significantly different between two groups (all P < 0.001) and significantly correlated with the total histological score of hepatic SOS (r = -0.70, 0.68 and 0.79; P < 0.001). △T1% and ESP were positively correlated with OATP1 levels (r = 0.82, 0.85; P < 0.001), whereas T1post had a negative correlation with OATP1 levels (r = -0.83; P < 0.001).

CONCLUSION

T1 mapping based on gadoxetic acid-enhanced MRI may be useful for diagnosis of hepatic SOS, and MRI parameters were associated with OATP1 levels.
Mitigating Mushroom Risks: Evaluating Cooking Practices for Salmonella Reduction in Dried Mushrooms
Authors: Patil Kavita , Desiree Karina , Adhikari Manita , Christmas Kennedy , Rubinelli Peter , Acuff Jennifer C.
Published: August 2024

This study determines the inactivation of Salmonella enterica Stanley on dried mushrooms when prepared by one of three distinct consumer preparation techniques. Sliced and powdered wood ear mushrooms were inoculated with Salmonella Stanley and equilibrated for 2 days at 50% relative humidity. Samples were treated with different water temperatures and time parameters: 80°C water allowed too cool naturally or 100°C water and held for 10 min. Samples were removed at predetermined time intervals to determine log reductions. Sliced mushrooms soaked in room temperature water and subsequently treated with 100°C water had significantly higher log reductions at each time point (P < 0.05), yielding a 5-log reduction of Salmonella after 2 min. Sliced mushrooms that underwent treatment with 80°C water demonstrated a 5-log reduction of Salmonella after 10 min. A maximum of 4-log reduction of Salmonella was observed for powdered mushrooms treated with 80°C water. This study provides preparation recommendations to reduce Salmonella spp. populations in dried mushrooms.
Ambient Temperature and Relative Humidity Remained Stable after Prolonged Application of Superheated Steam in Enclosed Spaces
Authors: Cai Shiyu , Woo Park Hyeon , Feng Jingzheng , Baker Jakob , Balasubramaniam V. M. , Snyder Abigail B.
Published: August 2024

Superheated steam has been proposed as a novel tool for surface sanitation, yet its impact on the relative humidity (RH) and temperature within enclosed dry food processing environments for extended exposure is unknown. This study measured RH and temperature within 12 enclosed and semi-enclosed indoor spaces of varied size, air handling systems, and ventilation rates during prolonged (<5 h) superheated steam operation at 135°C. The RH and temperature were monitored at locations near (0.3 and 1.5 m) the steam nozzle, entrances, vents, and walls. Superheated steam application did not significantly (P > 0.05) increase the ambient temperature or RH among all spaces, except near the steam source (0.3 m). A significant increase in RH and temperature occurred near the steam source (0.3 m), where the maximum increase in RH (47%; small facilities, high ventilation rate) and temperature (9.3°C; large facilities, low ventilation rate) was observed, resulting in limited steam cooling and surface condensation. The results suggested that prolonged superheated steam exposure did not substantially increase the RH or temperature, except for small facilities with low ventilation rates and locations near the steam source. This indicates that the application of superheated steam could enhance sanitation efforts in dry processing environments.
IMPLEMENTASI WIENER, CONTRAST STRETCHING, SHARPENING FILTER PADA CITRA SEMANGKA MENGGUNAKAN MSE,RMSE, DAN PSNR
Authors: Aviantoro Kevin , Darnita Yulia
Published: August 2024

Penelitian ini mengkaji tiga metode pemrosesan citra Wiener Filter, Contrast Stretching, dan Sharpening Filter untuk meningkatkan kualitas citra semangka. Evaluasi kinerja dilakukan menggunakan Mean Squared Error (MSE), Peak Signal-to-Noise Ratio (PSNR), dan Root Mean Square Error (RMSE). Wiener Filter efektif mengurangi noise, Contrast Stretching meningkatkan kontras, dan Sharpening Filter menonjolkan detail. MSE mengukur rata-rata kesalahan kuadrat antara citra asli dan citra yang diproses, dengan nilai < 1 menunjukkan kualitas bagus dan > 1 kualitas kurang bagus. PSNR mengukur rasio sinyal maksimum terhadap noise, dengan nilai < 20 dB menunjukkan kualitas kurang bagus dan > 40 dB kualitas bagus. RMSE, sebagai akar dari MSE, memberikan ukuran kesalahan absolut antara citra asli dan citra yang diproses. Nilai RMSE yang lebih rendah menunjukkan kualitas yang lebih baik dan memudahkan pemahaman besaran kesalahan.
World in Crises: Towards Qualitative Interviewing through Existential Questions
Authors: Balasanyan Sona , Gevorgyan Hasmik
Published: August 2024

Qualitative interviewing is a widely applied method of data collection in social sciences. Over time, continual diversification of this method led to more multi-modal and participant-centered qualitative research paradigms. This methodological article examines the role of qualitative interviews within the context of the psychosocial approach and its application in understanding interview experiences in critical life situations. Accounting for research ethics and embracing existential questions, qualitative interviewing gains added value in understanding and responding to interviewees who face crises. Drawing on various methodological approaches, including oral history, biographical, feminist, phenomenological, and cross-cultural, this study explores how interviewing evolves into a complex research practice. It shows that existential philosophy offers valuable insights into conducting qualitative interviews in multidimensional disasters, such as the COVID-19 pandemic, ecological and economic crises, conflicts, and wars. By utilizing existential questioning as an interviewing technique, interviewers engage with interviewees as they make sense of critical life conditions. Outlining the sensitive boundaries between the critical contexts and personal reflections in interviews, the article signifies the interactionist nature of interviewing, emphasizing moments where existential questions enhance the symbolic interaction between an interviewer and an interviewee. Ultimately, this methodological study demonstrates how specific existential questions - either standalone or as probes and prompts - lead to the emergence of new meanings during interviews, enabling the researchers and research participants to make sense of crises and critical life situations.
Co-Design to Evaluate the Impact of Gender Equality Initiatives: Lessons for Practitioners, Evaluators and Researchers
Authors: Taylor Helen , Williamson Sue
Published: August 2024

Achieving gender equality is an ongoing challenge in science, technology, engineering, mathematics, and medicine (STEMM) disciplines in universities globally, including in Australia, where our study was located. As institutions that deliver research and teaching in STEMM, universities have committed to a range of initiatives and programs to address this challenge. The Athena Swan Institutional Award is one such program, operating as an accreditation process that measures progress towards gender equality, and is reliant on demonstrating impact. The work required to meet accreditation standards is extensive. Very little academic literature has advanced qualitative methodology suited to delivering the evaluation of gender equality initiatives. This paper describes our approach to evaluation, informed by a feminist paradigm and incorporating research co-design as our methodology. We discuss engaging co-designers and forming co-designed research projects, as well as applying and undertaking fieldwork using this methodology. Our successful approach is intended as a guide for practitioners and academics evaluating gender equality programs in higher education, and in other sectors.
Effectiveness of prehospital intervention protocols in improving survival rates in patients with acute myocardial infarction: a systematic review
Authors: Suárez Sheyla Andrea Ponce , Garzón Nicolás Camilo Mora , Vasquez Elias David Suarez , Baños Kevin Mora , Guarin-Rivera Syndy Katherine , Correa Juan Felipe Perez , Martínez Diana Sofía Guerrero , Perlaza Lorena Medina
Published: August 2024

Acute myocardial infarction (AMI), also referred to as a heart attack is responsible for one the most prevalent cardiovascular mortality among patients. It is time sensitive with prehospital protocols holding a significant importance. This systematic review aims to assess the effectiveness of prehospital strategy among acute myocardial infarction (AMI) patients. The review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, which have played a crucial role in maintaining the transparency and thoroughness of this review. The review included five studies that significantly contributed to the importance of prehospital intervention protocols in managing AMI. Direct referral to PPCI centers, rapid prehospital ECG diagnosis, and protocol-driven EMS transportation significantly reduce ischemic time and mortality rates. Prehospital triage improves survival rates and reduces both short-term and long-term mortality. Integrating prehospital and hospital-based care is crucial for optimizing patient outcomes. However, variations in outcomes suggest the need for standardized protocols and continuous training for EMS personnel.
Dengue Shock Syndrome with Unusual Cardiac Manifestation in a Child: A Case Report
Authors:   Department of Child Health, Sanjiwani Regional General Hospital, Gianyar, Bali, Indonesia Jl. Ciung Wanara-Gianyar No.2, Gianyar, Kec. Gianyar, Kabupaten Gianyar, Bali 80511, Gitari Ni Made , Windiyanto Romy ,   Department of Child Health, Sanjiwani Regional General Hospital, Gianyar, Bali, Indonesia Jl. Ciung Wanara-Gianyar No.2, Gianyar, Kec. Gianyar, Kabupaten Gianyar, Bali 80511
Published: August 2024

Introduction: Dengue fever is a viral infectious disease transmitted through arthropods (arboviruses) that is most common throughout the world with the greatest burden occurring in tropical and subtropical regions. The clinical manifestations of dengue infection range from asymptomatic to severe dengue. Neutofil to lymphocyte ratio (NLR) was reported can predict the severity of myocarditis and the severity of dengue infection in children. Cardiac involvement in dengue patients has been reported in some cases and may be characterized by abnormal heart rhythms. Case Presentation: We describe the case of an 11-year-old patient with dengue shock syndrome and cardiac manifestation. The patient was given fluid therapy according to WHO guidelines for dengue shock syndrome and supportive treatment. In the convalescence phase, ECG examinations were carried out and the results showed sinus bradycardia and premature atrial complex. NLR was also found to increase in the early phase and decrease with the convalescence phase. The patient had no clinical manifestation of myocarditis, dyspnea or chest pain so there were no additional treatments for this condition. After four days of treatment, the patient was discharged from the hospital with an improved condition. Conclusion: Cardiac involvement can occur in dengue shock syndrome which can be characterized by abnormal cardiac rhythm on the ECG. NLR is a laboratory parameter that can be used as a predictor of the severity of dengue and myocarditis. Early diagnosis, supportive management and close monitoring with clinical and a laboratory parameter can reduce the mortality of dengue shock syndrome with cardiac manifestation in pediatric patients.
Prevalence of Normozoospermic, Oligozoospermic, Asthenozoospermic, Oligoasthenoteratozoospermic and Azoospermia Disorder in 394 Semen Samples
Authors:   Pathological Analyses Department /Faculty of Science University of Kufa, Al-Murshedy Dr. Sahib , Ali Montadher Ghassan ,   Pathological Analyses Department /Faculty of Science University of Kufa, abd Adel Reda ,   Pathological Analyses Department /Faculty of Science University of Kufa, abd alsada Doaa Abbas ,   Pathological Analyses Department /Faculty of Science University of Kufa, Mahdi Maytham Fadel ,   Pathological Analyses Department /Faculty of Science University of Kufa
Published: August 2024

Objective: This study aimed to evaluate the prevalence normozoospermia compared to other abnormal sperm parameters included oligozoospermia, asthenozoospermia, oligoasthenoteratozoospermia for patients who attended a fertility center in al Najaf city in Iraq. Methods: The study was conducted in the laboratories of the Fertility Center of Al-Sadr Teaching Hospital in Al-Najaf Governorate - Iraq. The age of the patients ranged from 20 to 44 and the marriage period ranged from 1 to 8 years. The results of the semen analysis of the samples were recorded and a categories of male infertility factor were determined based on the World Health Organization’s guideline. normozoospermia had sperm concentration > 15 million, progressive motility > 32 %, normal morphology > 14 %. oligozoospermia had sperm concentration < 15 million. asthenozoospermia had progressive motility < 32 %. oligoasthenoteratozoospermia had sperm concentration< 15 million, progressive motility < 32 %, normal morphology < 14 %. Azoospermia had sperm concentration zero /ml. Results: The results showed that normozoospermia had higher prevalence (27.92) compared to other groups in study, oligozoospermia had (4.31), asthenozoospermia had (27.66), Oligoastheno had 25.63, Oligoasthenoterato had (6.09) and azoo had (8.38). Conclusion: from our finding we concluded that Normozoospermia has higher prevalence than other abnormal sperm parameters. Recommendation: study of prevalence of abnormal sperm parameters in the months of the years.
Application of Design Thinking Method to Increase Adoption of Electronic Land Certificates
Authors:   Telkom University, Bandung, Indonesia, Somantri Entis , Tricahyono Dodie ,   Telkom University, Bandung, Indonesia, Noviaristanti Siska ,   Telkom University, Bandung, Indonesia, Ghina Astri ,   Telkom University, Bandung, Indonesia
Published: August 2024

With the rapid advancement of information technology, the Government of the Republic of Indonesia issued Ministerial Regulation ATR/Ka BPN No. 1 of 2021 on Electronic Certificates and Government Regulation No. 18 of 2021 on Management Rights, Land Rights, Condominium Units, and Land Registration. Electronic land registration is essential to enhance productivity and efficiency in Indonesia's land registration system. This regulation shifts the previously paper-based land registration system to an electronics one. This study aims to identify the main issues in implementing the electronics land certificate program at the Ministry of ATR/BPN. Additionally, it seeks to find solutions for the Ministry of ATR/BPN in executing the electronics land certificate program. The phenomena in this study are explored using the design thinking method, which functions of five stages: empathize, define, ideate, prototype, and test. Data collection techniques include in- depth interviews, observations, and secondary data collection. The informants involved are 1 user of electronics land certificates, 6 prospective users, and 1 electronic land certificate officer. This type of research is qualitative, using the triangulation method to obtain valid data in the empathize stages .The study reveals the concerns of users and prospective users of electronics land certificates ( certel ) regarding data security, the complexity of the documentation process , and the lack of information and socialization . The main issue identified is the lack of clear and adequate information about electronics land certificates. Proposed solutions include a WhatsApp Chat Bots, Social Media Campaigns, and Digital Advertising, with the WhatsApp Chat Bot being the priority. The WhatsApp Chat Bot, named SERTEL chatbot, was developed to provide comprehensive information about electronics land certificates through WhatsApp. The trials showed positive reception from officers and prospective users, supporting the implementation of Chatbot SERTEL by the Ministry of ATR/BPN as an effective solutions.
Seasonal variability of phytoplankton community structure in a coastal station of the Argentine continental shelf based on a chemotaxonomic approach
Authors: Ruiz M. Guillermina , Mattera Coy M. Belén , Carignan Mario C. , Albornoz Macarena , Molinari Graciela N. , Montoya Nora G.
Published: August 2024

The composition, abundance and size structure of the phytoplankton community at a coastal time series station (38° 28' S-57° 41' W, EPEA, Argentina) was characterized by applying the chemotaxonomic approach. The seasonal variability of pigment diversity determined by high-performance liquid chromatography (HPLC, n = 171), nutrient concentration (n = 934), and temperature, salinity and degree of stratification of the water column was identified (n = 190 CTD profiles). The CHEMTAX program was used to estimate phytoplankton abundance in terms of contribution to chlorophyll a concentration of the different phytoplankton pigmentary types (PPTs). Two different pigment indices were compared to estimate phytoplankton community size fractions throughout the year, giving contrasting results. Water column was mostly mixed, with minimum temperatures between July and September and maximum between January-March (range: 8-23 °C). Nitrate was the limiting nutrient, with minimal concentrations at the end of summer. It’s range varied between 0.010-13.330 μM, while silicate ranged between 0.016-10.670 μM without major seasonal variations, and phosphate between 0.120-2.180 μM. Fucoxanthin, chlorophyll c2, 19’-hexanoyl-oxy-fucoxanthin, diadinoxanthin, chlorophyll b, chlorophyll c3, peridinin and, alloxanthin, were the most frequent phytoplankton pigments. The PPT DINO-1 (dinoflagellates with peridinin), haptophytes types: HAPTO-6, HAPTO-7 and HAPTO-P showed a seasonal cycle with peaks of abundance in autumn and spring, while the diatoms DIATO-1 was high during the whole year and DIATO-2 mainly during winter. A pigment profile of a group of prymnesiophytes possessing MVChl_c3 was described. It was evident that at this site PPTs having potentially toxic species bloom under different hydrological conditions. DINO-1 is likely to bloom in April (autumn), with temperatures close to 18 °C and weak stratification conditions, while October bloom (spring) occurs with lower temperatures of 10-12 °C. DINO-4 was noted during January and February (summer), when temperature was > 18 °C, salinity < 33.7, and the water column showed maximum stratification. In contrast, the maximum abundances of DIATO-2 occurred between August and September (winter), under completely mixed conditions, high nitrate concentration and low temperature of 10 °C. This work constitutes the first description of the variability of the abundance of the main PPTs in a coastal a time series station in the southwestern Atlantic Ocean shelf throughout the annual cycle, demonstrating the power of chemotaxonomy and CHEMTAX to perform descriptive analysis of a large number of samples.
Diversidade microbiana, perfil fermentativo e estabilidade aeróbia de silagem de milho inoculada com cepas de Lentilactobacillus buchneri em diferentes períodos de armazenamentos
Authors:   , Freitas Gabriela Duarte
Published: August 2024

Objetivou-se investigar os efeitos da inoculação com a cepa de L. buchneri 90.14, obtida em condições tropicais, e cepa de L. buchneri comercial, sobre a diversidade microbiana fúngica, características fermentativas, perdas, estabilidade aeróbia e composição química de silagens de milho planta-inteira, com diferentes tempos de abertura dos silos após a ensilagem. Foi utilizado um esquema fatorial 3×3 [dois inoculantes (INOC) mais o controle e três tempos de abertura (TA)], no delineamento inteiramente casualizado, com quatro repetições. Os inoculantes avaliados foram: controle (CON; sem inoculante), Lalsil As, (Lallemand, Brasil), e, cepa de L. buchneri, isolado 90.14 (LB 90.14). Os tempos de abertura foram: 20 (D20), 40 (D40) e 60 (D60) dias. Houve efeito de TA para nitrogênio amoniacal (N-NH3) e ácido propiônico, com maiores teores em D60. Houve efeito de TA e INOC para o teor de MS das silagens; as silagens do D20 e D40 apresentaram maior teor de MS em relação a D60, com mais altos teores nas silagens inoculadas. Houve efeito do inoculante para ácido lático (AL), ácido propiônico (AP) e carboidratos solúveis em água (CHOS). Concentrações de AL foram menores para silagens inoculadas com cepa selvagem. Houve efeito de interação TA×I sobre as variáveis FDA, NIDA, amido, pH, bactérias do ácido lático, leveduras e ácido acético. Após sete dias de exposição aeróbia, houve efeito de interação TA×I para todas as variáveis avaliadas, exceto para recuperação de matéria seca (RMS), que foi afetada por local e por inoculante. O teor de matéria seca (MS) não foi afetado por nenhum dos fatores avaliados. As silagens inoculadas com o LB 90.14 apresentaram menor população de leveduras e de mofos e maior estabilidade aeróbia. Houve maior diversidade e abundância do grupo Candida ethanolica nas silagens inoculadas. Conclui-se que a cepa LB 90.14 melhora a estabilidade aeróbia de silagens de milho, portanto, apresenta potencial para a produção de silagens de boa qualidade e possibilita a abertura do silo após 20 dias de armazenamento. Palavras-chave: Composição química; Metagenômica; Heterofermentativo.
Associação rara de doenças em pré-escolar
Authors: Serafini C. B. , Barbosa L. A. , Torres A. M. R. , Vinhas A. S. , Godinho M. B. , Serafini N. B. , Barbosa T. A. , Kelly D. L. A.
Published: August 2024

A neurofibromatose tipo 1 (NF-1) é uma doença genética causada pela diminuição na produção da proteína neurofibromina, o que resulta em ausência no controle do crescimento e das divisões celulares. A doença de Moyamoya (DMM) é uma desordem vaso-oclusiva progressiva rara, com incidência estimada em 1:1.000.000, porém, é a doença pediátrica cerebrovascular isquêmica mais comum no leste Asiático. Relata-se o caso de uma criança não asiática, com AVE rapidamente progressivo, e diagnóstico tardio de DMM associado à NF-1. Paciente pré-escolar, dois anos de idade, sexo masculino, branco, natural do Rio de Janeiro, que apresentou episódio de crise convulsiva tônico-clônica, hemiplegia braquiocrural à direita, ataxia, afasia e disfagia. Foi internado para investigação com TC e RNM do crânio com imagens de injúria isquêmica. Ao exame clínico, observaram-se diversas manchas café-au-lait em tronco, dorso, ombro esquerdo, fossa ilíaca direita e extremidades e exame de fundo de olho normal. A AngioRNM do crânio evidenciou importante redução do calibre da artéria carótida interna direita com ausência de fluxo em sua porção supraclinóide; ausência de fluxo na artéria cerebral média esquerda e formação de múltiplos vasos colaterais. Houve melhora importante do quadro neurológico com persistência de pequenos déficits motores focais. Foi encaminhada para um serviço de neurocirurgia de referência para planejamento da abordagem cirúrgica das estenoses vasculares e se mantém em acompanhamento ambulatorial até o momento. A DMM é uma doença grave, que pode evoluir com curso neurológico desfavorável. Em pacientes com NF-1 associado com DMM o diagnóstico precoce e o planejamento cirúrgico adequado são de extrema importância tanto para melhorar a hemodinâmica cerebral quanto para reduzir os déficits neurológicos causados por ambas as doenças.
A Study of Behavioral Aspects of Financial Decision Making - A Women Perspective
Authors: Prof. Gauri S Kalmegh  , Prof. V. S. Kadu  , Prof. K. S. Bijawe
Published: August 2024

In the challenging and volatile financial markets, an investor must constantly modify his financial objectives, leading to a diversified investment portfolio. The capacity of each investor to make wise choices will dictate his or her financial destiny. Making financial decisions is a difficult process that is impacted by a wide range of social, psychological, and economic variables. Gender-specific perspectives on financial behaviors reveal distinct patterns, especially with regard to women. This study investigates the behavioral components of women's financial decision-making by looking at risk attitudes, social factors, psychological characteristics, and economic situations. This study examines the behavioral elements of financial decision-making from the viewpoint of women, looking at the particular difficulties, driving forces, and money-management techniques that women face. The study explores how women's financial behaviors are shaped by psychological variables, socioeconomic circumstances, and gender-specific prejudices. The intention is to comprehend the ways in which these variables affect women's financial wellbeing and to find strategies for assisting them in making wise financial decisions. The paper tries to shed light on how these elements interact to shape women's financial behaviors through an extensive review of the literature and an analysis of empirical findings. The design of financial services and products, financial education, and policy-making are all significantly impacted by the knowledge gathered from this research.
Environment and Indian English Novel: A Critical Study with Reference to Amitav Ghosh’s Novels
Authors: Dr. B. R. Lakshmi  , Dr. P. Kousar Basha
Published: August 2024

The intricate interdependence of life on Earth and its environs highlights the critical role that natural items play in ensuring the existence of living organisms. Trees are the most important of them all since they provide a wide range of species with the food, shelter, oxygen, and raw materials they require to live and grow. However, people have regularly abused nature due to our self-interest and constant pursuit of scientific and technological advancement, which has resulted in major environmental issues that endanger the continuation of life on Earth. In response to these expanding concerns, writings on environmental issues have proliferated, offering insightful viewpoints and increasing awareness. Eco-criticism, which studies the relationship between literature and the natural environment, has grown in popularity as a field of study.The paper examines how environmental concerns are portrayed in Amitav Ghosh’s Novelsand examine how these literary works both reflect and comment on the era’s environmental consciousness. The study will shed light on how Amitav Ghosh’s Novelscontribute to the larger conversation on environmental sustainability and the pressing need for ecological balance by analyzing the stories and characters in these novels.
Question Generation Based On Performance Analysis
Authors: Ms. S. Poornima  , Darius Jonathan D  , Karthikeya Vishwa N  , Prem Kumar D  , Ramesh V
Published: August 2024

The development of an application that generates questions across various levels of Bloom's Taxonomy, such as remembrance, understanding, analysis, and creation, represents a significant advancement in the field of education and assessment. The primary goal of this application is to provide a comprehensive platform for assessing and enhancing individual performance in a specific topic. At the core of this innovative project lies the utilization of Google's state-of-the-art LLM, PaLM 2's text-bison-001, which is a powerful language model known for its natural language processing capabilities. This model is harnessed to generate questions that span the cognitive domains of Bloom's Taxonomy, ensuring a well-rounded assessment of learners' knowledge and skills based on their past performances on respective domains. There are four main modules used in the project: Providing resources, Conducting test, Performance Analysis, Question Generation. In summary, this project aspires to revolutionize education by offering personalized, comprehensive, and evolving assessments that enhance individual performance and understanding of a specific topic. Through the synergy of advanced technology and educational theory, it paves the way for a more effective and efficient learning experience.
Conceptualizing the Relationship Between Course Management, Learning Styles and University Students’ Academic Challenges in China
Authors: Yang Chongchong , Bikar Singh Soon Singh
Published: August 2024

Improving the quality of higher education has become the main task of the reform and development of higher education. The pressure of students' study is increasing day by day, and the competition is becoming increasingly fierce. course management and students' learning styles in colleges and universities are all important indicators that affect students' academic challenges. Therefore, this paper investigates the relationship between current university course management, learning styles and students' academic challenges, conducts theoretical research and literature review, summarizes the current actual situation of students' academic challenges and course management, and proposes targeted improvement methods and suggestions for education management in order to further discover the problems. It provides reference for more effective education policy and implementation, and more targeted support measures.
Bridging Education and Enterprise: The Impact of Live Streaming Training on China's Digital Workforce
Authors: Xianxu Wang , Mohamed Shazleen , Adnan Wardatul Hayat , Padil Nagib Bin , Guanghe Ge
Published: August 2024

In the context of China's highly developed digital economy, there is significant attention on the training of talents related to e-commerce live streaming and short video production. This study explores the role and status of live streaming training institutions within China’s digital economy and education market. It examines the impact of training in live streaming and short video technologies on job seekers and digital entrepreneurs, as well as the effects on e-commerce platforms. Data was collected through semi-structured interviews with managers, course advisors, and live streaming course instructors from five live streaming training institutions. NVIVO software was used to conduct qualitative analysis on the institutions' background, teaching methods, courses, student profiles, corporate partnerships, and market demands. The research results indicate that live streaming training institutions play a significant supplementary educational and bridging role for job seekers and employers. Training in live streaming and short video skills significantly enhances the competitiveness of entrepreneurs in the fierce digital market. The rapid expansion of training institutions has also injected new vitality into the digital economy, while simultaneously contributing to negative phenomena in short video and live streaming sales on e-commerce platforms. This study provides the latest insights into China’s digital economy and live streaming training industry, offering valuable reference points for industry practitioners, policymakers, and researchers.
USE OF FUNCTIONAL FOODS OF MORINGA LEAF (MORINGA OLEIFERA) INTO VARIETY OF FOOD PRODUCTS IN ANEMIA MANAGEMENT EFFORTS
Authors: Momongan Nita , Montol Ana , Kereh Phembriah , Imbar Henry S
Published: August 2024

Pendahuluan :  Gizi yang baik menjadi landasan setiap individu mencapai potensi maksimal yang dimiliki. Anemia paling tinggi terjadi pada kelompok wanita. Salah satu upaya yang dilakukan untuk mencegah anemia pada remaja putri adalah memanfaatkan tanaman lokal sebagai pangan fungsional yang ada disekitar tempat tinggal masyarakat yaitu daun kelor (Yulianti dkk, 2016). Pengembangan produk aneka produk olahan daun kelor (moringo oliefera) dapat memberikan nilai tambah dalam pemanfaatannya untuk meningkatkan nilai gizi yang memberi konstribusi terhadap pencegahan dan penyembuhan pada kasus anemia gizi. Tujuan penelitian adalah mengetahui fungsi olahan makanan dari daun kelor untuk pencegahan anemia pada remaja. Metode : Jenis penelitian  adalah quasi eksperimen dengan  rancangan pre and  post tes contol group desain. Hasil :  Tidak terdapat perbedaan kadar Hb sebelum dan setelah penelitian pada kelompok kontrol (p=0.111).  Pada kelompok perlakuan yaitu yang diberikan intervensi menu daun kelor berupa Nuget, Kue talam dan Silky daun kelor menunjukkan ada perbedaan yang bermakna kadar Hb sebelum penelitian dan setelah intervensi.
THE INFLUENCE OF HEALTH EDUCATION ABOUT SEX ON ADOLESCENTS' KNOWLEDGE
Authors: Gandey Monica Christiani , Ransun Djony , Sarimin Dorce Sisfiani , Karundeng Yanni , Pantouw Lidya Anita
Published: August 2024

Background: Sex education that is still considered taboo in Indonesia is one of the causes of adolescents engaging in improper sexual behavior. The purpose of this study was to determine whether there is an effect of sexual health education on adolescent knowledge. This research method uses literature review research, which is research in the form of a literature review of the results of previous research either textbooks or research journals. To obtain data in accordance with the specified topic, researchers conducted a search for national and international journals through three databases, namely Scopus, Science Direct and Google Schoolar. Results with publication years 2010-2020 and researchers obtained 8 journals used for literature review. Conclusion: there is an effect of health education about sex on adolescent knowledge, and the method most often used is the lecture method, with the use of media such as leaflets or power points.
The Effectiveness of the Marmet Technique to Increase Breast Milk Production in Breastfeeding Mothers at the Tateli Community Health Center, Minahasa Regency
Authors: Pasambo Yourisna , Tumanken Greischa Audrey , Tamunu Esther , Ponidjan Tati S. , Sarimin Dorce Sisfiani , Kanine Esrom
Published: August 2024

Introduction: Newborn babies must receive the best care, including food, where breast milk is the best intake to meet the baby's nutritional needs. In 2021, exclusive breastfeeding coverage in North Sulawesi Province will be 30.2%, lower than the national target of 80%. Several factors influence a mother's failure to provide exclusive breastfeeding, including psychological factors, maternal age, maternal occupation, maternal knowledge, family support, and lack of oxytocin and prolactin reflexes which can be influenced by lack of physical preparation (such as breasts) when breastfeeding. One of the things that health workers can do in this case is to help increase breast milk production, one of which is through the marmet technique. The marmet technique is a combination of expressing breast milk and massaging the breasts to optimize the breast milk reflex. This research is objective to evaluate the effectiveness of the marmet technique in increasing breast milk production in mothers breastfeeding babies aged 0-6 months at the Tateli Community Health Center, Minahasa Regency. Method: Research design using Almost Experiment with 30 breastfeeding mothers as samples, selected through purposive sampling. Results showed a significant increase in breast milk production after the intervention (p-Value < 0.05). Concluded that the marmet technique is effective in increasing breast milk production in mothers breastfeeding babies 0-6 months, and it is recommended that health practitioners introduce and train the marmet technique to breastfeeding mothers as part of efforts to increase breast milk production.