bluuebunny/crossref_metadata_2025 huggingface dataset:
DISTRIBUTION SERVICE PERFORMANCE OPTIMIZATION OF PDAM TIRTA TAMAN BONTANG CITY EAST KALIMANTAN PROVINCE
Authors: Nugraha Vian Aviantara Wahyu , Anwar M. Ruslin , Suryo Eko Andi
Published: April 2023

To achieve the level of service performance from PDAM Tirta Taman Kota Bontang , obtained based on user perceptions of PDAM Taman Tirta obtained from the results of a questionnaire with a Likert scale using the Importance Performance Analysis (IPA) method. From the results of the IPA analysis, interviews were then conducted using the Strength Weakness Opportunities Threats (SWOT) method . The results of the IPA analysis were used in quadrant I, namely service to the registration process (x11), survey of prospective customer locations (x12), time of survey implementation (x13) , Payment orders before installation (x15), Notice the length of the installation process (X15). Registration up to installation (X16), the supplied water meets health standards, attributes (X21 ), the quality of the supplied water (color, smell, taste) (X22) , report to PDAM Tirta Taman if there is a disturbance or it doesn't work smoothly (x 33 ), the duration of handling the damage house connection (x 43 ), customer or prospective customer database of PDAM Tirta Taman (x 71 ). Then the SWOT quadrant matrix with the SO ( Strengths-Opportunities ) strategy, namely development with IT and with social media Periodic pipe rejuvenation to avoid pipe leaks that can affect quality, Providing Customer Service via WhatsApp for service notifications, disruptions and payment orders, Issuing SOPs new and regular schedule for maintenance., Continue to perform security updates on the database storage system , Use of official forms for prospective customers with the interest of installing a new connection
Coronary CT Angiography for Coronary Artery Disease: The Current Status and Future Challenges
Authors: Dyah Handari Saskia
Published: April 2023

Coronary computed tomographic angiography, often known as CCTA, is quickly becoming the diagnostic technique of choice for determining the existence of coronary artery disease (CAD). In the future, CCTA may play an essential part as a "one-stop shop" in the screening, diagnosis, decision making, and treatment planning processes. Plaque burden, high-risk plaque, non-invasive angiography, perfusion with hyperemia, fractional flow reserve (FFR), percent of myocardium at risk, inflammation, myocardial scar, wall motion analysis, and risk scores are some of the many measures that are utilized.
Arterial Stiffness as A Predictor of Future Cardiovascular Events: Methods of Measurement and Clinical Implications
Authors: Galih Ardani , Tri Tjahjono Cholid , Saifur Rohman Mohammad , Kurniningsih Novi
Published: April 2023

Arterial stiffness has recently emerged as strong predictor of cardiovascular events, including coronary heart disease. The cardio-ankle vascular index (CAVI) is a novel index that measures the overall stiffness of the artery all the way from the point where it branches off from the aorta to the ankle. CAVI's ability to provide accurate results regardless of the patient's blood pressure at the moment of measurement is without a doubt its most valuable characteristic. CAVI is related to many cardiovascular risk factors, including hypertension, diabetes mellitus, dyslipidemia, and smoking. It also increases with age and in many arteriosclerotic diseases, such as coronary artery disease, carotid arteriosclerosis, chronic kidney disease, and cerebrovascular disease. CAVI also increases in patients who have cerebrovascular disease. Controlling conditions such as diabetes mellitus and hypertension, in addition to quitting smoking, may also reduce the risk of CAVI. This indicates that CAVI is a physiological surrogate measure of atherosclerosis, and it also implies that it might be a signal of lifestyle change. Recent research has shown that CAVI and numerous functions of the left ventricle are linked to one another, which points to a linkage between the heart muscle and vascular function. This study discusses the fundamentals of CAVI as well as our present understanding of the measurement, with a particular emphasis on its functions and potential future use.
Correlation Between Jakarta Cardiovascular Score and Coronary Artery Calcium Score in High-Risk Women at Siloam Hospital Surabaya, Indonesia, 2020-2021
Authors: Mi'raj Suprayoga Imam , Dyah Handari Saskia
Published: April 2023

Background: Coronary Artery Calcium Score (CAC) is an indicator of atherosclerosis and could be used as a reliable noninvasive assessment of coronary artery disease. The Jakarta Cardiovascular Assessment (JAKVAS) is a modified Framingham risk score based on the Indonesian population targeted for developing countries. This study was aimed todetermine the correlation between Jakarta Cardiovascular Score and Coronary Artery Calcium Score in High-Risk Women in Surabaya, Indonesia, in 2020-2021. Method: This study was a retrospective study looking for a correlation between JAKVAS and CAC, with data taken from the medical records of Siloam Hospital Surabaya from 2020-2021. Result: The association between JAKVAS and CAC risk stratification was significant (P < 0.05). Conclusion: Theabsence of CAC is related to a lower risk of cardiovascular events (JAKVAS) than CAC > 0 in high-risk women.
Left Ventricular Hypertrophy and Clinical Outcomes in Heart Failure Patients Based on Hypertension Subtypes: Insights from a Tertiary Hospital Heart Failure Registry in Malang, Indonesia
Authors: Satrijo Budi , Murni Maharani Andona , Rizki Fadlan Muhammad , Suryo Baskoro Shalahuddin
Published: April 2023

Background Left ventricular hypertrophy (LVH) is a maladaptive response to chronic pressure overload and an important risk factor sudden death in patients with heart failure. Previous studies show that LVH is a risk factor for systolic heart failure. It’s interesting to examine whether Isolated Systolic Hypertension (ISH) in the presence of LVH contribute to clinical outcome. Objective: The aims of this study to examined association of ISH with cardiovascular outcomes and to examined associations of ISH and LVH in Heart failure registry patient Methods: A total of 120 subject’s were collected from Saiful Anwar Heart Failure Registry from January 2019 to December 2019. All participants were individually interviewed with a structured questionnaire for collecting baseline characteristic. Subject were classified into 2 group of hypertension (ISH and Systolic Diastolic Hypertension (SDH)). ISH based on the criteria of SBP ≥ 140 and DBP < 90 mmHg and SDH based on SBP ≥ 140 and DBP ≥ 90 mmHg. The EF and volumes were measured with 2D-biplane Simpson's method by measured as a standart manner Result’s: ISH commonly found among older hypertensive patients than SDH (Mean age 61,23±11,2 yo vs 53,52±11,1 yo, respectively, p<0,04)). LVH was more prevalence among ISH than SDH. No difference in clinical outcome such as in hospital mortality, Rehospitalization, and Lengt of stay were observed in both groups. Complication of hypertension was similar in both groups such as stroke, Myocardial Infarct, and Chronic Kidney Disease. Intrestingly, no difference also observe in compliance to the drug between ISH and SDH. We also examined subgroup analysis of subject’s with ISH. There was no statistically significant difference in clinical outcome between ISH with LVH and ISH without LVH. Conclusion: In this study, we suggest that ISH more common in older patient with HF than SDH but had similar associations with cardiovascular mortality and rehospitalization. ISH was associated with a higher prevalence of left ventricular hypertrophy than SDH.
The Experience of Using Plain Balloon Percutaneous Venoplasty in Central Vein Stenosis in Hemodialysis Patient; Insight for Future Better Development Strategy
Authors: Satwikajati Sawitri , Kurnianingsih Novi , Martini Heny , Satrijo Budi
Published: April 2023

Background : Central vein stenosis is a most complication among hemodialysis patient who inserted catheter or access for dialysis. The proper management is still challenging because venoplasty as the main recommendation but it had potential complication. The comparable datas of plain vs drug coated balloon were still exist. In this case presentation we will discuss about the use of plain ballon venoplasty as an urgent strategy to relieved central vein stenosis in hemodialysis patient and it’s outcome after procedure in our hospital. Case : Female, 56 years old came to Saiful Anwar Hospital with unilateral upper extremity edema, she felt heavy to move her arm, a litte bit numbness, and no history of pain on her arm. She had been undergo routine hemodialysis and had history of AV shunt inserted for 3 months ago. She came with compos mentis, GCS 456, BP 160/92 mmHg, HR 68 bpm, RR 20 tpm, SpO2 98% RA, temp 36.4oC, Hb 8.0 mg/dL, Ur 53.6 mg/dL, Cr 5.4 mg/dL, eGFR 1.73. From physical examination we got good peripheral oxygen saturation, we suggested this patient with central vein stenosis. We performed venography resulted stenosis 95% at brachiocephalic vein and undergo plain balloon percutaneous venoplasty. After procedure her right upper extremity was getting better. We observes this patient, but in the next three months after procedure of plain balloon percutaneous venoplasty she complained that her right upper extremity became swollen again. We performed re-venography and resulted with restenosis of brachiocephalic vein. She underwent percutaneous venoplasty again and the evaluation untik now was better, the diameter of upper right extremity became smaller and she can do her daily activity. Conclusion : Central vein stenosis was one of the most complication after dialysis catheter insertion. We performed percutaneous venoplasty and observed the outcome of this patient. After 3 months, the symptom was recurrent and we performed percutaneous venoplasty again.
Analysis of Hospital Service Management from the Perspective of Local Balinese Wisdom
Authors: Sunariani Ni Nyoman , Suidarma I Made
Published: April 2023

This study aims to analyze the health service management of provincial hospitals (RSUDs) in Bali from the perspective of local wisdom, especially Tri Kaya Parisuda values and the integration of Tri Kaya Parisuda values with human capital theory (HCT). Structural equation modeling (SEM) was applied as the analysis technique in the study. The results showed that the management of health services at Bali’s provincial hospitals was considered satisfactory and in accordance with the existing health service standards, although there were certain staff members who had not provided maximum service. Intellectual intelligence to think properly (manacika), communication equivalent to correct sayings (wacika),  and good employee behavior (kayika) contributed significant effects on the performance and service quality of RSUDs in Bali. This study discovered that the performance and quality of service were more dominantly affected by employee behavior than by intellectual intelligence or communication.
Analysis of Implementation Indonesia-Japan Economic Partnership Agreement (IJEPA) Toward Export Value Growth in Indonesia
Authors: Yuliati Lilis , Komariyah Siti , Khusnul Khatimah Diah Ayu
Published: April 2023

This study aims to analyze the impact of the Indonesia-Japan Economic Partnership Agreement (IJEPA) bilateral trade agreement on Indonesia's export value in the long term. The secondary data time series used for the research is from 2005Q1 to 2019Q4, and the research method employed is the VECM (Vector Error Correction Model). The results of the VECM analysis show that the IJEP bilateral agreement has a significant negative effect, the inflation variable has a significant positive effect, and the FDI and exchange rate variables have a negative but not significant effect on the value of Indonesia's exports to Japan. Implementation of the recommended policies to increase export value and economic growth, namely compliance with product standardization, especially for destination countries, actively and openly providing information related to the IJEPA tariff scheme and utilizing capacity building.
Молекулярно-динамическое исследование развития дислокационной структуры ГЦК-кристалла, содержащего ансамбль сферических пор, при внешнем силовом воздействии
Authors: Маркидонов А.В. , Старостенков М.Д. , Липунов В.Н. , Лубяной Д.А. , Захаров П.В.
Published: April 2023

Radiation swelling is one of the most urgent problems in radiation materials science. Its successful solution requires an understanding of the features of the mechanisms of pore healing. In this regard, there are various experimental and theoretical works devoted to this topic. At present, due to the increase in the power of computing tools, computer simulation allows for more and more complex studies and is used, among other things, in the field of materials science. In this paper, we present the results of molecular dynamics simulations devoted to the study of the processes of healing of a group of spherical pores in an fcc crystal subjected to shear deformation. As the study showed, for pores located in close proximity to each other, the formation of a common dislocation loop is characteristic, which is formed as a result of the attraction of individual loops having sections with opposite signs of helical orientation. The formation and subsequent development of such a loop contributes to a decrease in the free volume localized in the crystal in the form of pores. In addition, structural transformations that occur when a shock wave is generated in the computational cell, which creates additional stresses, are considered separately. In this case, the formation of the loop described above and the subsequent collapse of individual pores are also observed. Taking into account that the simulation was carried out at temperatures insufficient to activate diffusion processes, and the temperature control procedure was used in model experiments with wave generation, we can conclude that the shock wave is the cause of pore collapse even in the absence of high temperatures, and one of the main mechanisms of this process is the development of the dislocation structure of the ensemble of pores.
Раннее образование поверхностных состояний в МОП-структурах при ионизирующем облучении
Authors: Александров О.В.
Published: April 2023

Разработана количественная модель раннего образования поверхностных состояний (ПС) в МОП-структурах при ионизирующем облучении (ИО) с лимитирующей стадией --- дисперсионным переносом дырок. Согласно модели основной вклад в раннее образование ПС происходит во время микросекундного импульса ИО для тонкого подзатворного диэлектрика и после окончания импульса для толстого полевого оксида. Рост плотности ранних ПС после окончания ИО связан с наличием локализованных состояний и дисперсионным переносом дырок. Позднее образование ПС лимитируется дисперсионным транспортом ионов водорода, что затягивает процесс образования поздних ПС от ~0.1 c до 104 и более секунд. Ключевые слова: МОП-структура, ионизирующее облучение, поверхностные состояния, дисперсионный транспорт.
Влияние условий возбуждения в переменном поле на кинетические и диэлектрические характеристики интеркалированных соединений Ag-=SUB=-x-=/SUB=-MoSe-=SUB=-2-=/SUB=-
Authors: Плещев В.Г.
Published: April 2023

Using the technique of impedance spectroscopy, data on the effect of the magnitude of the variable signal and the constant bias on the kinetic characteristics of the AgxMoSe2 samples were obtained . The effect of temperature on the parameters of the impedance spectra of the studied compounds and on their dielectric characteristics, which were analyzed within the framework of the electrical modulus formalism, is also shown.
Влияние механической деформации на магнитные свойства и магнитокалорический эффект в пленках Gd
Authors: Кашин С.Н. , Коплак О.В. , Валеев Р.А. , Пискорский В.П. , Бурканов М.В. , Моргунов Р.Б.
Published: April 2023

In W/Gd/W/MgO heterostructures, the dependence of mechanical stresses in the Gd film on the crystallographic orientation of the MgO substrate was revealed. Variations in the interplanar spacings in MgO in different orientations create tensile elastic stresses up to 0.22 GPa in the Gd film, which are transferred through the damping layer W. It is found that these stresses affect the isothermal magnetization curves, the corresponding change in the magnetic part of the entropy at the Curie point Tc = 293 K, and the relative cooling capacity (RCP). This allows us to consider mechanical stresses as a factor in controlling the magnetocaloric cycle, which increases the efficiency of the refrigeration machine, when mechanical loading is synchronized with the heating-cooling cycles of the ferromagnet.
Переориентация намагниченности гетероструктур GdFeCo/Ir/GdFeCo при критических температурах
Authors: Бахметьев М.В. , Бурканов М.В. , Валеев Р.А. , Пискорский В.П. , Моргунов Р.Б.
Published: April 2023

In GdFeCo/Ir/GdFeCo heterostructures with amorphous GdFeCo layers, three critical points were found in the temperature dependences of the magnetization. In the neighborhood of 100 K, the temperature of compensation for the magnetizations of the Gd and FeCo sublattices is observed, which is found in the form of a magnetization minimum and does not depend on the magnetic field. As the temperature decreases, a sharp stepwise transition is observed, which corresponds to the switching of the mutual magnetization’s orientation of the GdFeCo layers between their parallel and antiparallel configurations. This transition depends on the magnetic field in which the measurement is made. Its critical temperature shifts in the range of 70–300 K with a change in the field in the range of 0.5–5 T. At low temperatures < 50 K, a transition to the spin glass state is observed, which is accompanied by a decrease in the magnetic moment to zero and disappears when the field is applied.
Влияние большой одноионной анизотропии на динамические и статические свойства негейзенберговского ферримагнетика
Authors: Космачев О.А. , Матюнина Я.Ю. , Фридман Ю.А.
Published: April 2023

The influence of a large single-ion anisotropy of the “easy plane” type on the phase states and spectra of elementary excitations of a ferrimagnet with sublattices S=1 and σ=1/2 and non-Heisenberg exchange interaction for a sublattice with S=1 is studied. It is shown that for different ratios of the material parameters of the system, only one phase state is possible, characterized by both vector and tensor order parameters (quadrupole-ferrimagnetic). The condition for sublattice spin compensation is determined, as well as the behavior of the spectra of elementary excitations near the spin compensation line. In the vicinity of the spin compensation line, the magnon spectra are "antiferromagnetically similar".
Исследование in situ механизма распространения деформационных полос Портевена-Ле Шателье
Authors: Шибков А.А. , Золотов А.Е. , Гасанов М.Ф. , Денисов А.А. , Кольцов Р.Ю.
Published: April 2023

На основе анализа данных высокоскоростной видеосъемки распространяющихся деформационных полос в алюминиево-магниевом сплаве установлено, что подвижная полоса деформации содержит избыток дислокаций одного механического знака, а основным механизмом распространения фронта локализованной пластической деформации вдоль оси образца является эстафетная передача скольжения в антипараллельном направлении для релаксации изгибающего момента, создаваемого первичной полосой деформации. Показано, что "мгновенная" скорость пластической деформации в течение ~1 ms в растущей полосе достигает значения ~103 s-1, сравнимого со скоростью деформации при ударных испытаниях. Ключевые слова: прерывистая деформация, полосообразование, дислокации, механический заряд, алюминиево-магниевый сплав.
Эволюция спектральных и структурных характеристик боратов, образующихся при взаимодействии оксидов лантана и скандия с расплавом тетрабората калия
Authors: Шмурак С.З. , Кедров В.В. , Киселев А.П. , Фурсова Т.Н. , Зверькова И.И.
Published: April 2023

The structure, morphology, IR spectra, as well as luminescence spectra and luminescence excitation spectra of europium-doped borates formed during the interaction of lanthanum and scandium oxides with a potassium tetraborate melt at 970°С with the general formula La0.99-xScxEu0.01BO3 were studied. It is shown that with an increase in the Sc3+ concentration, three compounds are successively formed: LaBO3, LaSc3(BO3)4, and ScBO3. At 0 ≤ x ≤ 0.26, the samples are single-phase and have the structure of LaBO3 aragonite. Within the range of 0.26 < x < 0.75, the samples are two-phase and contain the structures of LaBO3 aragonite and LaSc3(BO3)4 huntite. At 0.75 ≤ x ≤ 0.85, LaSc3(BO3)4 is observed. Within the range of 0.85 < x ≤ 0.97, the samples are two-phase and consist of LaSc3(BO3)4 huntite and ScBO3 calcite. At 0.97 < x ≤ 0.99, the ScBO3 samples have a calcite structure. Correspondence between the structure and spectral characteristics of these compounds was established.
Особенности изменения интенсивностей основных полос фотолюминесценции ионов Tb-=SUP=-3+-=/SUP=- и их сателлитов в поликристаллическом люминофоре Gd-=SUB=-2-=/SUB=-O-=SUB=-3-=/SUB=-:Tb(3 mol%)
Authors: Баковец В.В. , Плюснин П.Е. , Юшина И.В. , Рахманова М.И. , Сотников А.В. , Долговесова И.П. , Пивоварова Т.Д.
Published: April 2023

Samples of Gd2O3:Tb(3 mol%) phosphor were obtained by sol-gel method followed by annealing at 800oC and 1200oC in air. At high annealing temperature, the intensities of the main emission bands 484 and 541 nm increase, but the ratio of the intensities of these emission bands to their satellites 493 and 549 nm respectively decreases. Based on the analysis of X-ray diffractometry, radiation spectra, far-infrared and Raman spectroscopy, as well as diffuse reflectance spectroscopy, we established: the increase in the crystallinity of the samples with a significant reduction of the lattice strain stress at elevated annealing temperatures, changes in the structure of the bandgap with degenerated acceptor and donor zones of impurities Tb4+ and Tb3+ respectively. The diffuse reflection spectra of the sample after annealing at 800oC under optical excitation showed a direct charge transition through the bandgap with Eg = 2.56 eV. After elevated annealing temperature the concentration of Tb4+ ions decreases due to reduction to Tb3+. As a result, at low excitation energies the degeneracy of the acceptor zone is still preserved and there is a direct transition of charges through the bandgap with Eg = 2.55 eV. At high excitation energies the degeneracy of the acceptor zone is removed and there is a direct transition through the bandgap with Eg = 3.39 eV. These effects are accompanied by a relatively large increase in the emission intensity of the satellites, especially at the 549 nm.
Возбуждение терагерцевого излучения в p-n-гетероструктурах на основе a-Si:H/c-Si
Authors: Андрианов А.В. , Алешин А.Н. , Аболмасов С.Н. , Теруков Е.И. , Захарьин А.О.
Published: April 2023

The results of studying the generation of terahertz (THz) radiation in p-n-heterostructures based on a-Si:H//c-Si upon their photoexcitation by radiation from a femtosecond titanium-sapphire laser with a wavelength of 800 nm are presented. The properties of the observed THz radiation can be explained by excitation of fast photocurrent of nonequilibrium charge carriers created in the region of the potential barrier under femtosecond interband photoexcitation of the structure. The fast photocurrent, in turn, emits a THz electromagnetic wave. The waveforms and amplitude spectra of the observed THz radiation reflect the dynamics of photoexcited charge carriers in structures. In terms of intensity, the THz radiation observed from the studied p–n heterostructures based on a-Si:H//c-Si is comparable to the THz radiation generated in n-InAs crystals, which are widely used as emitters in systems of THz time-domain spectroscopy. Therefore, a-Si:H//c-Si p-n-heterostructures can be used as THz emitters for solving tasks of THz spectroscopy.
Эволюция фазовых переходов и эффект сохранения энергии в твердых растворах SrTiO_3-PbZrO-=SUB=-3-=/SUB=-
Authors: Смирнова Е.П. , Пассет Р.С. , Сотникова Г.Ю. , Зайцева Н.В. , Гук Е.Г. , Гаврилов Г.А.
Published: April 2023

Синтезированы твердые растворы (1-x)SrTiO_3-xPbZrO3 (x=0.5, 0.6, 0.7, 0.8, 0.9) и исследованы их диэлектрические свойства. Измерение петель диэлектрического гистерезиса позволило получить полевые зависимости основных параметров, характеризующих эффект сохранения энергии в этих материалах. Обсуждается связь полученных параметров с эволюцией состояния твердых растворов от релаксоров до антисегнетоэлектриков в данной системе. Ключевые слова: твердые растворы, эффект сохранения энергии, релаксоры, антисегнетоэлектрики.
Микромеханизм повышения пластичности в ультрамелкозернистом сплаве Al-Cu-Zr после отжига и дополнительной деформации
Authors: Гуткин М.Ю. , Орлова Т.С. , Скиба Н.В.
Published: April 2023

A theoretical model which describes a micromechanism of plasticity enhancement in an ultrafine-grained Al-Cu-Zr alloy after annealing and additional deformation is suggested. Within the framework of the model, it was shown that nanoprecipitates of the secondary phase Al2Cu in the grain boundaries become the effective sources of the lattice dislocations in the presence of a large number of the grain boundary dislocations. The theoretical dependences of the flow stress on the degree of the plastic deformation demonstrate good qualitative and quantitative agreement with the experimental data. The emission of the lattice dislocations from nanoprecipitates provides higher plasticity compared to the emission of the lattice dislocations from the triple junctions of the grain boundaries.
Efecto de diferentes formulaciones de recubrimiento con proporción de mezcla polisacárido/proteína para la conservación de lulo (Solanum quitoense L)
Authors: Osorio Mora Oswaldo , Benavides Caicedo Jhein Fiorela , Bastidas Legarda Angie Paola , López Enriquez David Fernando
Published: April 2023

El sector hortofrutícola enfrenta problemáticas relacionadas con el mal manejo poscosecha, lo que genera altos porcentajes de pérdidas. El lulo (Solanum quitoense), fruto andino altamente apetecible en el mercado nacional e internacional, presenta una fisiología climatérica que acelera su metabolismo y disminuye su vida útil, por tal motivo, se ha impulsado el desarrollo de recubrimientos comestibles a partir de materiales biopoliméricos. El objetivo de la investigación fue comparar el efecto de diferentes formulaciones de recubrimientos a base de polisacáridos (pectina o hidroxipropilmetilcelulosa (hpmc)) y proteína (gelatina) sobre la pérdida de peso (%), índice de color y firmeza (n) en lulo. Los frutos fueron seleccionados, acondicionados y distribuidos en nueve (9) tratamientos con proporciones 75/25 %, 50/50 %, 25/75 % y 100 % del total de biopolímeros (3 % p/v) y frutos sin recubrimiento como control. Todos se almacenaron durante 15 días en condiciones ambientales (18,84 ± 1,07 °C y 51,33 ± 4,55 % de humedad relativa (hr)). Los resultados indicaron que T2 (50/50 % pectina/gelatina) presentó la menor pérdida de peso (9,654 ± 0,9 %) para el último día de evaluación y se redujo en 16,40 % respecto al control, preservó el color (9,909 ± 0,3) y mantuvo la firmeza del fruto (26,879 ± 4,0 n). Lo anterior permitió evidenciar un mejor efecto sinérgico entre la proteína y el polisacárido sobre las propiedades del fruto, convirtiéndose así en una alternativa viable y aplicable para la conservación y su contribución en la disminución de las perdidas poscosecha.
A Nurse-Led Telehealth Program for Diabetes Foot Care: Feasibility and Usability Study
Authors: Ju Hsiao-Hui , Momin Rashmi , Cron Stanley , Jularbal Jed , Alford Jeffery , Johnson Constance
Published: April 2023

Background

Diabetes mellitus can lead to severe and debilitating foot complications, such as infections, ulcerations, and amputations. Despite substantial progress in diabetes care, foot disease remains a major challenge in managing this chronic condition that causes serious health complications worldwide.

Objective

The primary aim of this study was to examine the feasibility and usability of a telehealth program focused on preventive diabetes foot care. A secondary aim was to descriptively measure self-reported changes in diabetes knowledge, self-care, and foot care behaviors before and after participating in the program.

Methods

The study used a single-arm, pre-post design in 2 large family medical practice clinics in Texas. Participants met individually with the nurse practitioner once a month for 3 months using synchronous telehealth videoconferencing. Each participant received diabetes foot education guided by the Integrated Theory of Health Behavior Change. Feasibility was measured with rates of enrollment and program and assessment completion. Usability was measured with the Telehealth Usability Questionnaire. Diabetes knowledge, self-care, and foot care behaviors were measured with validated survey instruments at baseline, 1.5 months, and 3 months.

Results

Of 50 eligible individuals, 39 (78%) enrolled; 34 of 39 (87%) completed the first videoconference and 29 of 39 (74%) completed the second and third videoconferences. Of the 39 who consented, 37 (95%) completed the baseline assessment; 50% (17/34) of those who attended the first videoconference completed the assessment at 1.5 months, and 100% (29/29) of those who attended the subsequent videoconferences completed the final assessment. Overall, participants reported a positive attitude toward the use of telehealth, with a mean Telehealth Usability Questionnaire score of 6.24 (SD 0.98) on a 7-point scale. Diabetes knowledge increased by a mean of 15.82 (SD 16.69) points of 100 (P<.001) from baseline to 3 months. The values for the Summary of Diabetes Self-Care Activities measure demonstrated better self-care, with participants performing foot care on average 1.74 (SD 2.04) more days per week (P<.001), adhering to healthy eating habits on average 1.57 (SD 2.12) more days per week (P<.001), and being physically active on average 1.24 (SD 2.21) more days per week (P=.005). Participants also reported an improvement in the frequency of foot self-examinations and general foot care behaviors. The mean scores for foot care increased by a mean of 7.65 (SD 7.04) points (scale of 7 to 35) from baseline to 3 months postintervention (P<.001).

Conclusions

This study demonstrates that a nurse-led telehealth educational program centered on diabetes foot care is feasible, acceptable, and has the potential to improve diabetes knowledge and self-care, which are precursors to preventing debilitating foot complications.
Accuracy of a Standalone Atrial Fibrillation Detection Algorithm Added to a Popular Wristband and Smartwatch: Prospective Diagnostic Accuracy Study
Authors: Selder Jasper L , Te Kolste Henryk Jan , Twisk Jos , Schijven Marlies , Gielen Willem , Allaart Cornelis P
Published: April 2023

Background

Silent paroxysmal atrial fibrillation (AF) may be difficult to diagnose, and AF burden is hard to establish. In contrast to conventional diagnostic devices, photoplethysmography (PPG)–driven smartwatches or wristbands allow for long-term continuous heart rhythm assessment. However, most smartwatches lack an integrated PPG-AF algorithm. Adding a standalone PPG-AF algorithm to these wrist devices might open new possibilities for AF screening and burden assessment.

Objective

The aim of this study was to assess the accuracy of a well-known standalone PPG-AF detection algorithm added to a popular wristband and smartwatch, with regard to discriminating AF and sinus rhythm, in a group of patients with AF before and after cardioversion (CV).

Methods

Consecutive consenting patients with AF admitted for CV in a large academic hospital in Amsterdam, the Netherlands, were asked to wear a Biostrap wristband or Fitbit Ionic smartwatch with Fibricheck algorithm add-on surrounding the procedure. A set of 1-min PPG measurements and 12-lead reference electrocardiograms was obtained before and after CV. Rhythm assessment by the PPG device-software combination was compared with the 12-lead electrocardiogram.

Results

A total of 78 patients were included in the Biostrap-Fibricheck cohort (156 measurement sets) and 73 patients in the Fitbit-Fibricheck cohort (143 measurement sets). Of the measurement sets, 19/156 (12%) and 7/143 (5%), respectively, were not classifiable by the PPG algorithm due to bad quality. The diagnostic performance in terms of sensitivity, specificity, positive predictive value, negative predictive value, and accuracy was 98%, 96%, 96%, 99%, 97%, and 97%, 100%, 100%, 97%, and 99%, respectively, at an AF prevalence of ~50%.

Conclusions

This study demonstrates that the addition of a well-known standalone PPG-AF detection algorithm to a popular PPG smartwatch and wristband without integrated algorithm yields a high accuracy for the detection of AF, with an acceptable unclassifiable rate, in a semicontrolled environment.
Remote Patient Monitoring and Teleconsultation to Improve Health Outcomes and Reduce Health Care Utilization of Pediatric Asthma (ALPACA Study): Protocol for a Randomized Controlled Effectiveness Trial
Authors: van der Kamp Mattienne , Hengeveld Vera , Willard Nico , Thio Boony , de Graaf Pascal , Geven Inge , Tabak Monique
Published: April 2023

Background

Childhood asthma is imposing a great financial burden on the pediatric health care system. Asthma costs are directly related to the level of asthma control. A substantial part of these costs may be preventable by the timely and adequate assessment of asthma deterioration in daily life and proper asthma management. The use of eHealth technology may assist such timely and targeted medical anticipation.

Objective

This paper describes the Ambulatory Pediatric Asthma Care (ALPACA) study protocol to investigate the effectiveness of an eHealth intervention consisting of remote patient monitoring and teleconsultation integrated into the daily clinical care of pediatric patients with asthma. This intervention aims to reduce health care utilization and costs and improve health outcomes compared to a control group that receives standard care. In addition, this study aims to improve future eHealth pediatric asthma care by gaining insights from home-monitoring data.

Methods

This study is a prospective randomized controlled effectiveness trial. A total of 40 participants will be randomized to either 3 months of eHealth care (intervention group) or standard care (control group). The eHealth intervention consists of remote patient monitoring (spirometry, pulse oximetry, electronic medication adherence tracking, and asthma control questionnaire) and web-based teleconsultation (video sharing, messages). All participants will have a 3-month follow-up with standard care to evaluate whether the possible effects of eHealth care are longer lasting. During the entire study and follow-up period, all participants will use blinded observational home monitoring (sleep, cough/wheeze sounds, air quality in bedroom) as well.

Results

This study was approved by the Medical Research Ethics Committees United. Enrollment began in February 2023, and the results of this study are expected to be submitted for publication in July 2024.

Conclusions

This study will contribute to the existing knowledge on the effectiveness of eHealth interventions that combine remote patient monitoring and teleconsultation for health care utilization, costs, and health outcomes. Furthermore, the observational home-monitoring data can contribute to improved identification of early signs of asthma deterioration in pediatric patients. Researchers and technology developers could use this study to guide and improve eHealth development, while health care professionals, health care institutions, and policy makers may employ our results to make informed decisions to steer toward high-quality, efficient pediatric asthma care.

Trial Registration

ClinicalTrials.gov NCT05517096; https://clinicaltrials.gov/ct2/show/NCT05517096

International Registered Report Identifier (IRRID)

PRR1-10.2196/45585
Rationale, Design, and Methods for the Sedentary Behavior Reduction in Pregnancy Intervention (SPRING): Protocol for a Pilot and Feasibility Randomized Controlled Trial
Authors: Barone Gibbs Bethany , Kozai Andrea C , McAdoo Shannon N , Bastyr Meghan C , Davis Kelliann D , Hauspurg Alisse , Catov Janet M
Published: April 2023

Background

Adverse pregnancy outcomes (APOs) identify cardiovascular disease risk, but few effective interventions are available. High sedentary behavior (SED) has recently been associated with APOs, but very few randomized controlled trials (RCTs) have tested SED reduction in pregnancy.

Objective

The Sedentary Behavior Reduction in Pregnancy Intervention (SPRING) pilot and feasibility RCT addresses this gap by testing the feasibility, acceptability, and preliminary pregnancy health effects of an intervention to reduce SED in pregnant women. The objective of this manuscript is to describe the rationale and design of SPRING.

Methods

Pregnant participants (n=53) in their first trimester, who are at risk for high SED and APO and without contraindications, are randomized in a 2:1 ratio to an intervention or control group. SED (primary outcome) and standing durations, and steps per day, are measured objectively in each trimester for 1 week with a thigh-mounted activPAL3 accelerometer. SPRING also seeks to demonstrate feasibility and acceptability while estimating preliminary effects on maternal-fetal health outcomes assessed during study visits and abstracted from medical records. The pregnancy-customized intervention promotes daily behavioral targets of less than 9 hours of SED and at least 7500 steps, achieved via increased standing and incorporating light-intensity movement breaks each hour. The multicomponent intervention provides a height-adjustable workstation, a wearable activity monitor, behavioral counseling every 2 weeks (through videoconference), and membership in a private social media group. Herein, we review the rationale, describe recruitment and screening processes, and detail the intervention, assessment protocols, and planned statistical analyses.

Results

This study was funded by the American Heart Association (20TPA3549099), with a funding period of January 1, 2021, and until December 31, 2023. Institutional review board approval was obtained on February 24, 2021. Participants were randomized between October 2021 and September 2022, with final data collection planned for May 2023. Analyses and submission of results are expected for winter of 2023.

Conclusions

The SPRING RCT will provide initial evidence on the feasibility and acceptability of an SED-reduction intervention to decrease SED in pregnant women. These data will inform the design of a large clinical trial testing SED reduction as a strategy to reduce APO risk.

Trial Registration

ClincialTrials.gov NCT05093842; https://clinicaltrials.gov/ct2/show/NCT05093842

International Registered Report Identifier (IRRID)

DERR1-10.2196/48228
Research on the Theoretical Logic and Practical Application of College Mental Health Education from the Perspective of Social Learning Theory
Authors: Xiaojun Xie
Published: April 2023

This paper mainly explores the theoretical logic and practical research of college mental health education from the perspective of social learning theory. The study suggests that social learning theory provides a new perspective and approach for college mental health education, and the application of this theory can promote the comprehensive development of students’ mental health. At the same time, this theory also provides guidance and support for the practice of college mental health education. By establishing a diversified and autonomous learning environment, enhancing the cooperation and coordination between school and society education, and establishing feedback and evaluation mechanisms, the effectiveness and quality of students’ learning can be improved. This study has certain reference value for the theoretical research and practical promotion of college mental health education.
Community-based selection indicators in Borgou cattle farming systems in north Benin
Authors: Worogo Hilaire S.S. , T. Alkoiret Ibrahim
Published: April 2023

Owning the best productive animals is among of the production goals of cattle farmers. This study aimed at exploring the selection indicators used by farmers to identify best promising cattle. Data were collected through surveys from 105 cattle farmers identified as Borgou cattle farmers. The data collected enabled to determine the scores and indices of each criterion mentioned according to the performance sought by the farmers. In general, farmers mentioned several indicators (≥ 5) for each performance sought and considered that the first three of each list were the best. The results showed that for the selection of animals for the improvement of dairy performance, farmers considered long teat (index=0.28; rank=1), the presence of veins in the udder (index=0.18; rank=2) and well-shaped udder (index=0.17; rank=3) as the three main best of the nine indicators mentioned. For meat production, the best selection indicators mentioned were thoracic development (index=0.23), body length (index=0.19), and straight legs (index=0.17) among the seven indicators mentioned. For selecting breeding males, five major indicators were mentioned and indicators such as large scrotum, long tail, and large hump were ranked as the top (index=0.31;0.22 and 0.19 respectively). As for the selection of breeding females, farmers mentioned the presence of large rump much more (rank=1); docility (rank=2), and straight legs of the animal (rank=3). This study enables to take into account cattle farmers’ knowledge for designing community-based conservation of the Borgou cattle in its native range.
Agripreneurship as a sustainable panacea of food security; an emerging issue
Authors: Naz Madiha , Hashmi Rakhshanda , Ahmad Sibtain
Published: April 2023

Agripreneurship is an efficient tool to cope with food security issues worldwide. A questionnaire-based study was executed to analyze the trend in people regarding the role of Agripreneurship in minimizing food security issues. The statistics enclosed 499 scholars arbitrarily nominated from different institutions District of Bahawalnagar, Province Punjab. The selection of these areas is reasonable owing to a huge degree of youth joblessness, the eminence of smallholdings and a great numeral of private enterprises and non-government organization that hugely interfere in decreasing youth joblessness. A questionnaire-based study was carried out through an academic group comprising a lecturer and professor, besides student demonstrative assistance. Out of all listed participants, 499 of 18-35 years old were selected haphazardly for data acquisition. Principal statistics were obtained using smartphones furnished with the Open Data Kit (OKD) data gathering software. Participants were located at their institutions, workstations or homes. A question-based survey was executed to gather data that handled a board of specialists. The pairwise assessment established the rationality of the data, and a small scale verified its consistency. The collected data was analyzed and PLS (3.3.3) and SPSS (20.0) softwares, correspondingly.
Smart Walker Instrumentation Using Hand Gestures
Authors: R Keerthana , S Lavanya , M Negaa Vaidheesvari , B Saranya , M Yashini
Published: April 2023

Abstract: The passive walker devices currently in use may steer or brake spontaneously, requiring the user to urge them ahead. This project creates a smart walker system with sensors and actuators for enhanced support and assistance. Here, the user controls the walker with hand gestures. Better physical support, sensory support, cognitive support, health monitoring, and human-machine interface are the key benefits. The method incorporates gyroscopes that measure the angles of hand movements and start the smart walker moving in the user's chosen directions. The temperature sensor, EMG sensor and gyroscope are used, to measure the health factors such as temperature, muscle activity and leg position angles and hand angles. Arduino is used as a control unit. It is mostly applied for the use of senior persons and people with lower limb disabilities during the rehabilitation stage.
Retinal Image Segmentation and Disease Classification using Deep Learning
Authors: S Sreelatha. H. , K Sreeranjani. , R Sushumna. , Panditharadhya Vagesh , M Manu. H.
Published: April 2023

Abstract: Segmenting and classifying retinal blood vessels are essential ophthalmology tasks because they reveal important details regarding the health and condition of the retina and its blood vessels. However, there is still room for improvement in terms of accuracy and robustness. Deep learning models have demonstrated significant promise in precisely and quickly segmenting and categorizing retinal pictures. In this study, we suggest the Residual U-Net (ResUNet) model for segmenting retinal arteries and the Resnet50 model for classifying retinal arteries. For enhanced feature extraction and picture segmentation, the ResUNet model, a deep learning architecture, combines the benefits of the U-Net and ResNet50 models. Accuracy was required for segmentation and classification, which gave our study's focus on the project and potential survey results in its distinctiveness. The DRIVE, CHASE-DB1, STARE, and HRF datasets, which include retinal pictures with ground truth annotations, were used to train and test our model. These data were the resource for obtaining the segmented output with analysis in accordance with the initial input supplied to the model. Another sign of the robustness of our model is its strong generalization capacity. Overall, our study shows the usefulness of the ResUNet model for retinal vascular segmentation and classification and highlights its potential for enhancing the diagnosis and treatment of retinal illnesses, which has the potential to improve further with the potential for further development.
DigiVoter-Smart Voting System Using Biometrics-Based Facial Features
Authors: Gawali Ankita , Ithape Anjali , Nagar Shailly , Buchade Dr. Amar
Published: April 2023

Abstract: Although India is a democratic country, it still uses traditional voting machines that are costly and require manual labor. However, an alternative web-based voting system has been proposed that would allow voters to cast their ballots from anywhere in the world. To participate, voters must register on the government's website and provide their name, address, and biometric information, such as fingerprints and facial images. This information would be securely stored in a server database. On election day, voters would log in to the website using their biometric information, similar to unlocking a mobile phone. This process would eliminate the need for physical presence and save time for voters. Moreover, using biometric information would reduce the risk of fraudulent voting. The proposed system would use ten print images to match the correct voter's name. To enhance security, the system would also take into account the constant distance between a person's eyes and eyebrows, which does not change with age
Chassis Design of Self- Propelled Onion Harvester
Authors: Chikhalkar Yash
Published: April 2023

bstract: SAE TIFAN is an intercollegiate competition organized by Society of Automotive Engineers (SAE) to design, build and Agriculture harvesting vehicles. Chassis is an important part of the vehicle that supports the body and other different parts of the vehicle. It also surrounds and protects the occupant in case ofimpact and roll over incidents and also gives the aesthetics of the vehicle. The paper deals with selection of material and cross section forthe chassis and analysing the frame design for different loading conditions to predict whetherit will survive various impact scenarios using ANSYS workbench. The chassis design will be based on SAE TIFAN India 2021 rule book taking safety and other aspects into account. The results from these simulations indicate that the frame is safe enough for the variety ofworst-case scenarios tested