bluuebunny/crossref_metadata_2025 huggingface dataset:
Title N/S-doped hierarchical porous bamboo carbon fibers with ultra-large surface area and highly exposed active sites for flexible zinc-air battery
Authors: Qian Yuhang , Liu Xinye , Zheng Xiangjun , Yang Zilong , Yu Yanjie , Gao Fei , Guo Xingmei , Liu Yuanjun , Cao Xuecheng , Zhang Junhao
Published: June 2024

Facile mass transport channel and accessible active sites is crucial for
binder-free air electrode catalysts in rechargeable flexible zinc-air
battery (ZAB). Herein, a ZnS/NH3 dual-assisted pyrolysis strategy is
proposed to prepare N/S-doped hierarchical porous bamboo carbon cloth
(HP-NS-BCC) as binder-free air electrode catalyst for ZAB. BCC fabric
with abundant micropores is firstly used as flexible carbon support to
facilitate the heteroatom-doping and construct the hierarchical porous
structure. ZnS nanospheres and NH3 activization together facilitate the
electronic modulation of carbon matrix by N/S-doping and optimize the
macro/meso/micropores structure of carbon fibers. Benefiting from the
highly-exposed N/S-induced sites with enhanced intrinsic activity, the
optimized mass transport of biocarbon fibers, as well as the ultra-large
specific surface area of 2436.1 m2 g-1, the resultant HP-NS-BCC catalyst
exhibits improved kinetics for oxygen reduction/evolution reaction. When
applied to rechargeable aqueous ZABs, it achieves a high open-circuit
voltage of 1.516 V and a significant peak power density of 249.1 mW
cm−2. As binder-free air electrode catalyst, the flexible ZAB also
displays stable cycling over 500 cycles with a minimal voltage gap of
0.42 V, showcasing promising applications in flexible electronic
devices.
Identifying Gaps in Sickle Cell Disease Healthcare Resources across Hematology Clinics in California
Authors: San Ali , Clyde Catie , Yap Dennis , Paulukonis Susan T. , Valle Jhacqueline , Quirolo Keith
Published: June 2024

Sickle cell disease (SCD) represents a major health challenge, affecting
more than 100,000 people in the United States. Patients develop severe
systemic manifestations from vaso-occlusive episodes, leading to severe
pain crises and reduction of life expectancy. Despite its prevalence,
individuals with SCD face not only dire health complications but also
encounter systemic barriers in healthcare access and treatment. This
study aims to illuminate these challenges by examining the healthcare
landscape for SCD patients in California, focusing on the accessibility
and distribution of hematology clinics’ resources. Through a
collaborative multi-site survey conducted, the study gathered insights
from 44 hematology clinics. We explored adherence to treatment
guidelines, the availability of specialty referrals, support services,
clinic operational hours, and the impact of patient population size on
service provision. The findings reveal significant gaps in guideline
adherence, specialty referrals, and clinic operation times in clinics
that serve ≤40 SCD patients. There is a scarcity of support roles such
as community health workers and healthcare navigators across all clinics
regardless of SCD population size. These disparities underscore the
urgent need for strategic interventions to improve access to
comprehensive care and support for SCD patients, advocating for a
multidisciplinary approach to healthcare delivery that addresses the
complex needs of this population. This study not only highlights the
disparities faced by SCD patients in California but also provides a
model for public health institutes to assess healthcare resources and
implement effective solutions to enhance patient outcomes and quality of
life.
Multi-decadal skill variability in predicting the spatial patterns of ENSO events
Authors: Wright Matthew , Weisheimer Antje , Woollings Tim
Published: June 2024

Seasonal hindcasts have previously been demonstrated to show
multi-decadal variability in skill across the twentieth century in
indices describing El-Niño Southern Oscillation (ENSO), which drives
global seasonal predictability. Here, we analyse the skill of predicting
ENSO events’ magnitude and spatial pattern, in the CSF-20C coupled
seasonal hindcasts in 1901-2010. We find minima in the skill of
predicting the first (in 1930-1950) and second (in 1940-1960) principal
components of sea-surface temperature (SST) in the tropical Pacific.
This minimum is also present in the spatial correlation of SSTs, in
1930-1960. The skill reduction is explained by lower ENSO magnitude and
variance in 1930-1960, as well as decreased SST persistence. The SST
skill minima project onto surface winds, leading to worse predictions in
coupled hindcasts compared to hindcasts using prescribed SSTs. Questions
remain about the offset between the first and second principal
components’ skill minima, and how the skill minima impact the
extra-tropics.
The Role of Family Support in the Well-Being of Older People: Evidence from Malaysia and Viet Nam
Authors: van der Meulen Rodgers Yana , E. Zveglich, Jr. Joseph , Ali Khadija , Xue Hanna
Published: June 2024

Rapid demographic changes in Malaysia and Viet Nam could disrupt traditional family support for older people. An analysis of unique panel data from the Malaysia Ageing and Retirement Survey and the Viet Nam Aging Survey points to the benefits of living conditions—including marital status and whether one’s children live nearby—for the physical and mental well-being of older people. Given the estimated protective effect of living arrangements examined in the paper, governments may need to adjust social safety nets to bolster the physical and mental health of senior citizens living alone.
Increased thalamocortical functional connectivity on discontinuation of treatment in painful diabetic peripheral neuropathy
Authors: Sloan Gordon , Teh Kevin , Caunt Sharon , Wilkinson Iain , Selvarajah Dinesh , Tesfaye Solomon
Published: June 2024

Abstract

Altered functional connectivity has been demonstrated in key brain regions involved in pain processing in painful diabetic peripheral neuropathy (Painful-DPN). However, the impact of neuropathic pain treatment on functional connectivity has not been investigated. Sixteen participants underwent resting state functional MRI (rs-fMRI) when optimally treated for neuropathic pain during their involvement in the OPTION-DM trial and 1-week following withdrawal of treatment. On discontinuation of pain treatment, there was a rise in functional connectivity between the left thalamus and primary somatosensory cortex (S1) and the left thalamus and insular cortex, key brain regions that are involved in cerebral processing of pain. The changes in functional connectivity between scans also correlated with measures of pain (baseline pain severity and neuropathy pain symptom inventory). Moreover, when participants were stratified into higher and lower than average baseline pain sub-groups, the change in thalamic-S1 cortical functional connectivity between scans was significantly greater in those with high baseline pain compared with the lower baseline pain group. This study shows that thalamo-cortical functional connectivity has the potential to act as an objective biomarker for neuropathic pain in diabetes for use in clinical pain trials.

Article Highlights

· Why did we undertake the study? Functional connectivity alterations have been found in the brain in painful diabetic neuropathy (Painful-DPN), but the impact of treatment on these measures is unknown.

· What is the specific question we wanted to answer? Will functional connectivity between key pain processing brain regions rise on withdrawal of treatment?

· What did we find? Discontinuation of neuropathic pain treatment leads to increasesin functional connectivity between the thalamus and primary somatosensory and insular cortices.

· What are the implications of our findings? Cerebral functional connectivity demonstrate the potential to act as objective biomarkers for Painful-DPN in clinical trials.
“In the USSR, Philately Will Either Be Accessible to the Masses or Will Not Exist at All”: The Genesis of Soviet Mass Collecting in the 1920s–1930s
Authors: Иванов А.С.
Published: June 2024

В статье представлены результаты исследования дискурса коллекционирования в РСФСР/СССР в период 1922–1932 гг., развернувшегося на страницах тематических журналов. Источниковой базой работы стали журналы, выходившие в разных регионах страны. Особое внимание уделено установлению монополии на коллекционирование и деятельности основателей советского коллекционирования – уполномоченного Центральной Комиссии помощи голодающим при ВЦИК по филателии и бонам Ф.Г. Чучина и историка-византиниста М.Я. Сюзюмова. Изучение литературы по указанной теме позволило систематизировать историографию, а также предложить объяснительную модель советского коллекционирования, которое зиждилось на политическом (идеологическом), экономическом, социальном и культурном аспектах. Анализ литературы и источников позволяет сделать вывод, что легальное коллекционирование в этот период, во-первых, сужается до филателии и других форм собирательства, и, во-вторых, проходит путь от беспартийности и аполитичности к многофакторному вспомогательному средству воспитания советских граждан в рамках досуговых практик. Вопреки устоявшемуся в историографии тезису, массовое коллекционирование в СССР на этом этапе не прекращало своего существования, а стало распространенной детской досуговой практикой в созданных ранее институтах.

The article presents the results of the study of the discourse of collecting in the pages of thematic magazines in the RSFSR/USSR in the period between 1922 and 1932. The source base of the research includes magazines that were published in different regions of the country. Special attention is paid to the establishment of a monopoly on collecting and to the activities of the founders of Soviet collecting (F. Chuchin, Commissioner of the Central Commission for Famine Relief under the VTsIK on Philately and Notaphily, and M. Syuzyumov, an expert in Byzantine history). The study of literature on the topic made it possible to systematize historiography and to offer an explanatory model of Soviet collecting, which was based on political (ideological), economic, social, and cultural aspects. The analysis of literature and sources allows us to conclude that, firstly, legal collecting during that period narrowed down to philately and other forms of collecting, and secondly, from being non-partisan and apolitical, it evolved into a multifactorial auxiliary means of educating Soviet citizens within leisure practices. Contrary to the well-established in historiography thesis, mass collecting in the USSR did not cease to exist at that stage, but it became a widespread children’s leisure practice in the institutions that had been created earlier.
Numerical Aerodynamic and Aeroacoustic Analysis of Toroidal Propeller Designs
Authors: Vu Xuan-Duc , Nguyen Anh-Tuan , Nha Tuong-Linh , Chu Hoang-Quan , Dinh Cong-Truong
Published: June 2024

Drones have a major drawback which prevents them from being used extensively - the excessive noise they produce. This article presents an optimization process of aerodynamic noise reduction for a novel design called the Toroidal Propeller, which consists of two blades looping joined in a manner where the end of one blade arches back into the other, has been designed by the Aerospace Propulsion Systems (APSs) research team at School of Mechanical Engineering, Hanoi University of Science and Technology. In addition, four toroidal propellers with different curved shapes (pitch) and Number of Blades (NOB) are considered. The goal of this research is to evaluate the effects of modifying the geometry design of the Toroidal Propeller on the intensity of blade tip vortex and aerodynamic flow characteristics passing through the blade. The ultimate goal is to decrease blade tip vortex and turbulence produced by the blade, which can help estimate the sound pressure level and minimize it without causing significant performance losses. Based on the outcome results, the models of the four geometry studies are compared in terms of Acoustic Power Level (APL), Surface Acoustic Power Level (SAPL), Thrust, Torque, and Power. In general, the propeller model with NOB of 3 provides the most optimal efficiency in terms of both Thrust and APL. At the output cross-section, the APL dropped from nearly 139 dB to 121 dB, while thrust increased from almost 6.2N to 8.7N compared to the first version of the Toroidal Propeller model.
Hydrodynamic and kinetic patterns of yellow iron oxide pigment filtration drying
Authors:   Lviv Polytechnic National University, Kindzera D. P. , Atamanyuk V. M. ,   Lviv Polytechnic National University, Helesh A. B. ,   Lviv Polytechnic National University, Tsiura N. Y. ,   Lviv Polytechnic National University
Published: June 2024

The filtration drying method of the yellow iron oxide pigment has been proposed. The main characteristics of the stationary layer and the experimental results of the hydrodynamics of filtering the heat agent through the stationary layer of pigment of different heights have been presented, which allows us to conclude the application feasibility of the filtration method by taking into account insignificant values of pressure drops. The obtained kinetic regularities of the yellow iron oxide pigment filtration drying process at different heights of the material layer, pressure drops, and temperatures of the heat agent, make it possible to select, in a scientifically based way, the optimal parameters for the process implementation in the production conditions.
Technological features of the formation of film products from modified hydrogels by the centrifugal method
Authors:   Lviv Polytechnic National University, Grytsenko О. М. , Gajdoš I. ,   Technical University in Košice, Department of Technologies, Grytsenko T. О. ,   Lviv Polytechnic National University, Yakovenko М. М. ,   Lviv Polytechnic National University
Published: June 2024

Processing of polymers and composites based on them by centrifugal molding is important for production the bodies of revolution, which are used in various industries. This article analyzes the centrifugal molding and presents the results of research about new areas of such materials applications. For instance as method for the hydrogel films production of materials based on copolymers of 2-hydroxyethyl methacrylate (HEMA) with polyvinylpyrrolidone (PVP), including filled hydrogels, which can be applicable in medicine, electrical and tool engineering.
Рolymers in biomedical engineering:materials for prosthesis and orthosis production (review)
Authors:   Lviv Polytechnic National University, Dudok G. D. , Semenyuk N. B. ,   Lviv Polytechnic National University, Faryna V. D. ,   Lviv Polytechnic National University, Skorokhoda V. Yu. ,   Lviv Polytechnic National University
Published: June 2024

Amputation of limbs as a result of the muscovites war as well as appearance of various injuries, accidents, diseases is becoming widespread in Ukraine. In this regard, the problem of high-quality prosthetics became relevant. The review highlights the main types of prostheses, orthoses and materials applied for their production also the problems concerning the research of materials and products. Studies conducted over the past 30 years show that prostheses are being made mainly of metal and polymer composites, as well as natural fiber-reinforced composites. Studies have shown that the good mechanical properties of polymer matrix composites reinforced with fibers of various nature have made such materials promising for the prosthetics application.
Іnvestigation of hydrolytic degradation of polyhydroxyalkanoates and their mixtures with polylactides
Authors:   Department of Physical Chemistry of Fossil Fuels of the Institute of Physical-Organic Chemistry  and Coal Chemistry named after L. M. Lytvynenko of the National Academy of Sciences of Ukraine, Semeniuk І. V. , Koretska N. І. ,   Department of Physical Chemistry of Fossil Fuels of the Institute of Physical-Organic Chemistry  and Coal Chemistry named after L. M. Lytvynenko of the National Academy of Sciences of Ukraine, Pokynbroda Т. Y. ,   Department of Physical Chemistry of Fossil Fuels of the Institute of Physical-Organic Chemistry  and Coal Chemistry named after L. M. Lytvynenko of the National Academy of Sciences of Ukraine, Kochubei V. V. ,   Lviv Polytechnic National University, Semenyuk N. B. ,   Lviv Polytechnic National University, Melnyk Y. Y. ,   Lviv Polytechnic National University
Published: June 2024

The hydrolytic degradation of polyhydroxyalkanoates, polylactide and their mixtures in vitro in physiological solution and phosphate-salt buffer as well was researched. The hydrolysis intensity of biopolymers was evaluated via the mass loss, change in molecular weight as well as the water absorption applying the methods of infrared spectroscopy and complex thermal analysis. It was determined that films based on the researched biodegradable polymers thermostated in a phosphate-salt buffer have been degrading faster than in physiological solution.
PENGARUH FINANCIAL KNOWLEDGE, PERSEPSI, RELIGIUSITAS DAN DISPOSIBLE INCOME TERHADAP MINAT MENABUNG DI BANK SYARIAH (STUDI PADA PELAKU UMKM DI KECAMATANTERBANGGI BESAR LAMPUNG TENGAH)
Authors: Kurniawan Muhammad , Septiana Eka
Published: June 2024

Penelitian ini bertujuan untuk mengetahui pengaruh Financial Knowledge, Persepsi, Religiusitas, dan Disposable Income Terhadap Minat Menabung di Bank Syariah(Studi Pada Pelaku UMKM di Kecamatan Terbanggi Besar Lampung Tengah).Penelitian ini menggunakan metode kuantitatif dengan populasi yaitu Pelaku UMKM sebanyak 550 usaha dengan sampel yang digunakan yaitu tekhnikstratified random sampling yaitu sampel yang digunakan 41 Pelaku UMKM.Berdasarkan hasil uji secara parsial dapat disimpulkan bahwa Financial Knowledge berpengaruh positif dan signifikan terhadap minat menabung pelakuUMKM di bank syariah. Hal ini berdasarkan perhitungan uji T yaitu thitung > ttabel yaitu 2,408 > 2,02809. Persepsi berpengaruh positif dan signifikan terhadap minatmenabung pelaku UMKM di bank syariah. Hal ini berdasarkan perhitungan thitung > ttabel yaitu 2,490 >2,02809. Religiusitas berpengaruh positif dan signifikanterhadap minat menabung pelaku UMKM di bank syariah. Hal ini berdasarkanperhitungan thitung > ttabel yaitu 2,237 > 2,02809. Disposable Income tidakberpengaruh positif dan signifikan terhadap minat menabung pelaku UMKM di bank syariah. Hal ini berdasarkan perhitungan thitung < ttabel yaitu 1,976 < 2,02809.Dan berdasarkan uji simultan bahwa dapat disimpulkan Financial Knowledge,Persepsi, Religiusitas, dan Disposable Income berpengaruh secara positif dansignifikan terhadap minat menabung pelaku UMKM di bank syariah. Hal ini dapatdilhat dari nilai Fhitung sebesar 4,204 yang lebih besar dari Ftabel sebesar 2,63.
Pengaruh Liputan Media Terhadap Efisiensi Investasi Pada Perusahaan Non Keuangan dalam Perspektif Syariah
Authors: Selvina Mia , Aulia Darlin
Published: June 2024

This study examines the effect of media coverage on investment efficiency in non-financial companies that trade products according to Islamic law listed in the 2003 DSN-MUI article 3 paragraph 2. Media coverage reduces underinvestment but increases overinvestment. The negative effects of media coverage of under-investment are more pronounced in firms influenced by greater information asymmetry and poorer corporate governance. The positive effect of media coverage on overinvestment is driven by media-driven CEO overconfidence. Additional results show that both in general, higher news optimism is associated with less investment but more investment. In addition, media coverage influences investment efficiency through its information dissemination rather than its information generation function. Collectively, the results of this study indicate that corporate media promotes more investment (overinvestment) than underinvestment (underinvestment).
The Effect of Competence, Work Discipline, and Motivation on Employee Performance in an Islamic Perspective (Study at Bank DKI Syariah Lampung Branch)
Authors: Noviyanti Yeni Tri , Bahrudin Moh. , Rosilawati Weny , Amrina Dania Hellin
Published: June 2024

The achievement of a company is largely determined by the quality of the people who work in it. Changes in the environment require their ability to capture the phenomenon, analyze its impact and prepare steps to deal with these conditions. Superior performance has an impact on the company's reputation and growth. This research uses a quantitative approach with data collection methods in the form of questionnaires, observation and documentation. Primary data was obtained from answers to questionnaire questions given to all employees of Bank DKI Syariah Lampung Branch. While secondary data is obtained from various related references. The results showed that competence has a significant effect on employee performance, then the work discipline variable has a significant effect on employee performance, the motivation variable shows a significant effect on employee performance.
Investigating Factors Associating with Online Shoping Behavior on TikTok Live Streaming in Generation Z
Authors: Winarno Salomo Chandra Gupta , Harnadi Bernardinus , Retnawati Berta Bekti
Published: June 2024

TikTok is an application that is currently very popular with the public. This research aims to study the behavior of users/consumers from Generation Z in using the live streaming feature on TikTok which leads to the desire and interest in making online purchases/shopping. The research was carried out using a purposive sampling method and collected data from 300 respondents from Generation Z. The research analysis was directed at the correlation between factors and the technology acceptance factors studied to gain insight regarding the activity of using live streaming technology on TikTok for online shopping activities. The expected output from this research is factors that influence the acceptance of live streaming technology on TikTok for online shopping activities among Generation Z and the correlation between these factors and acceptance factors. The output of this research will help uncover the factors causing the increase in the use of the live streaming feature on TikTok in attracting online shopping interest from Generation Z. The elements found can be helpful for business people, online shopping consumers, and parties interested in increasing shopping interest online which is caused by the availability of technological features added to social media applications.
Vinblastine/prednisolone chemotherapy leads to hematological toxicity in dogs with high-grade or metastatic mast cell tumors
Authors: Soussa Ryan W. , Jaderberg Suzie , Williams Tim L. , Dobson Jane M.
Published: June 2024

OBJECTIVE

To determine the myelosuppressive effects/hematological toxicities, other general toxicities, and when these occur during vinblastine/prednisolone chemotherapy in dogs bearing high-grade or metastatic cutaneous/subcutaneous mast cell tumors (MCTs).

METHODS

Medical records were retrospectively reviewed between November 1, 2016, and March 1, 2023. Thirty client-owned dogs with histopathologically confirmed cutaneous high-grade MCTs/metastatic subcutaneous MCTs and that subsequently completed a 12-week vinblastine/prednisolone chemotherapy protocol were included. Hematology was assessed before commencing chemotherapy and before each vinblastine treatment. The effect of each treatment upon hematological values was evaluated. Measured outcomes included the type, frequency, and severity of hematological and other more general toxicities.

RESULTS

24 of 30 dogs experienced at least 1 hematological toxicity, 6 experienced gastrointestinal toxicity, and 4 experienced lethargy. The most common toxicity was anemia (15/30 [50%]), with 93.3% (14/15 dogs) classified as Veterinary Cooperative Oncology Group–Common Terminology Criteria for Adverse Events grade I and 6.6% (1/15) classified as grade II. The second most common toxicity was neutropenia (14/30 [46.6%]), with 71.4% (10/14) classified as grade I and 28.6% (4/14) as grade III. The least common hematological toxicity was thrombocytopenia (4/30 [13%]), all grade I. Neutropenia mainly occurred during weeks 2 and 3; however, there was no significant decrease in neutrophil count relative to baseline. Neutrophil count increased and Hct decreased during weeks 6 to 12 of treatment when compared to baseline. No change in platelet count was observed.

CLINICAL RELEVANCE

Vinblastine/prednisolone chemotherapy leads to hematological toxicity; however, this was mostly low-grade and did not require major intervention. Vinblastine/prednisolone chemotherapy is well tolerated in dogs bearing high-grade or metastatic MCTs.
Modeling Financial Risk Attitude: The Role of Education And Financial Literacy
Authors: Iannario Maria , Monti Anna Clara , Scalera Domenico
Published: June 2024

This paper studies the relationship between risk propensity, education and financial literacy. The results of the empirical investigation confirm the importance of the key explanatory variables of education and financial competence. Since they are both included in the model, the different roles of each are singled out. In particular, while education turns out to be a factor contributing to raising risk tolerance, financial literacy tends to reduce risk propensity. Risk attitude is evaluated by self-reported assessment and modeled through cumulative logit models. In order to handle anomalous data, M estimators with a bounded influence function are considered.
Impact of Institutions on Financial Inclusion in Africa
Authors: Łaszewski Antoni Ludwik
Published: June 2024

Financial inclusion, for which the keystone is access to a bank account, is crucial to overcome the socioeconomic backwardness of African countries and to improve the African societies’ well-being. The study concentrates on this continent to better understand the nature of its development in terms of financial inclusion. The research aims to identify the institutions’ impact on financial inclusion in 35 African countries in the years 2010-2019. The analysis is based on a panel model with fixed individual effects. Novelty of the study rests in incorporation of four institutional variables: constraints on the executive, resolving insolvency, property rights, and WGI. The results showed a positive and statistically significant impact of resolving insolvency on financial inclusion (a measure covering people with financial institution accounts) across the entire sample. However, this relationship is especially visible in more developed countries, while constraints on the executive turned out to be crucial for low-income countries. Another novelty of the study is creation of an index of financial inclusion covering Mobile Money which was used to verify the obtained results. In this case, no positive impact of any institutional variable was identified which may mean that a favourable institutional environment is not required for the development of Mobile Money.
The Change of the Monetary Paradigm: Financial Security and Cryptocurrency
Authors: Mihus Iryna , Marchenko Volodymyr , Dombrovska Alla , Panchenko Oksana
Published: June 2024

This study aims to investigate the economic characteristics of cryptocurrencies and assess the current legal framework regarding the potential to regulate transactions involving cryptocurrencies and other virtual assets. To achieve this goal, a complex set of general scientific and specialized research methods was applied, including comparative legal analysis, system-structural examination, generalization method, as well as methods of analysis and synthesis, DFD to build a model of the influence of cryptocurrency on the financial security of the state. As a result, we delved into the economic essence of blockchain-based cryptocurrencies as an alternative to traditional fiat currencies based on the principle of decentralization. It has been established that Bitcoin has a unique "hardness", due to which this cryptocurrency is rightly called «digital gold». The article analyzed the dynamics of the development of the use of blockchain technologies for 2009-2022, the results of which indicated the continuation of their annual growth in use. The article presents the results of a study on the introduction of cryptocurrency in Ukraine, which made it possible to systematize the main risks associated with it. In further research, it is possible to continue studying the economic-legal mechanism of the introduction of the national cryptocurrency in Ukraine and the use of blockchain in other financial processes at the state level.
Pile–Soil Interaction during Static Load Test
Authors: Siemaszko Paweł
Published: June 2024

This study highlights the possibility of determining the shear stress distribution along the skin of a pile, which represents skin resistance. Geotechnical engineering is plagued by the challenge of designing appropriate piles as a sufficient foundation construction while being economically justified solution. Static load testing facilitates verification if the pile satisfies these requirements. In most cases, the pile skin resistance is undervalued. This study first introduces the general approach based on static load test results using an appropriate mathematical approach in the presence of linear, vertical shear stress distribution boundary conditions as well as phenomena such as pile shortening and Kirchhoff's principle. Moreover, a scientific approach for pile compression and shear stress distribution is presented. Further, the study expands upon previous work by applying mathematical calculus to displacement piles. The promising results indicate that further work on greater number of piles may lead to a better understanding of pile–soil interaction and a more accurate design process.
Stromgestehungskosten von Erneuerbaren sind kein guter Indikator für zukünftige Stromkosten
Authors: Grimm Veronika , Oechsle Leon , Zöttl Gregor
Published: June 2024

The falling levelised cost of electricity (LCOE) of renewables is often used to argue that electricity costs in Germany will decline. However, the LCOE is not a reliable basis for estimating future electricity costs because gaps between demand and supply of insufficient renewable production will have to be covered by complementary technologies such as battery storage or gas-fired power plants and, in the future, hydrogen-fueled power plants. The investment costs of these plants and their operation must be included in the calculation of the costs of meeting demand. The “Levelised Cost of Load Coverage” (LCOLC) calculated in this way does not indicate that electricity costs will fall significantly in the coming decade.
Evidenzbasierte Forschung – die Irrelevanz des Manipulationsverdachts
Authors: Winkler Adalbert
Published: June 2024

On the occasion of the 80th birthday of Hayek‘s “The Road to Serfdom“, Veronika Grimm, Stefan Kolev and Jens Weidmann have drawn attention to the core messages of the book. In doing so, they relativise the accusation of ideology levelled at the book by instead being suspicious of the manipulation by evidence-based research as it may potentially contain hidden normative statements. This relativisation attempt is contradicted in the following article.
Arbeits- und Lebensbedingungen in Deutschland und den USA im Vergleich
Authors: Priewe Jan
Published: June 2024

A comparison of working and living conditions in the USA and Germany in 2022 shows that Germany performs better than the USA on a large number of indicators. Working and living conditions are measured on the basis of twelve dimensions using over 80 sub-indicators. For comparison: the traditional indicator “gross domestic product”, which is often used for international comparisons, was higher in the USA than in Germany in 2022. In the following, the alternative measurement of prosperity is presented and its results analysed.
Evaluasi Resiko Ergonomi Postur Pekerja Pencelupan Batik Menggunakan Rapid Upper Limb Assessment dan Quick Exposure Check di UKM Batik Pasha
Authors: Amalia Amalia , Jannah Vivin Noviatun
Published: June 2024

ABSTRAKBatik pasha adalah salah satu UKM yang memproduksi berbagai kerajinan batik. Batik Pasha melakukan proses pencelupan secara manual yaitu menggunakan bak pencelupan dilantai dengan postur kerja yang jongkok atau membungkuk. Hal tersebut menyebabkan pekerja mengalami keluhan tubuh. Penelitian ini bertujuan untuk mengetahui bagian tubuh yang mengalami nyeri serta tingkat resiko postur kerja pada proses pencelupan di UKM Batik Pasha. Metode yang digunakan adalah Nordic Body Map (NBM), Rapid Upper Limb Assesment (RULA), dan Quick Exposure Check (QEC). Hasil pengukuran ergonomi pekerja mengalami keluhan pada beberapa bagian tubuh, serta final score metode Rapid Upper Limb Assesment (RULA) yaitu 7, dan Quick Exposure Check (QEC) level 3, hasil tersebut menunjukkan perlunya identifikasi dan perubahan segera. Tindakan perbaikan kerja yang dapat dilakukan adalah pekerja melakukan peregangan otot dan melakukan perubahan bentuk bak pencelupan yang sesuai dengan anthropometri. Kesimpulan dari penelitian ini adalah postur kerja stasiun pencelupan di UKM Batik Pasha dibutuhkan perubahan segera. Kata kunci: Pencelupan, Nordic Body Map (NBM), Rapid Upper Limb Assesment (RULA), Quick Exposure Check (QEC), Postur Kerja.  ABSTRACTBatik pasha is one of the SMEs that produces various batik crafts. Batik Pasha does the dyeing process manually by using a dyeing bath on the floor with a squat or dyeing work posture. This causes workers to experience body complaints. This study aims to determine the parts of the body that are affected and the level of risk of work posture in the dyeing process at SME’s Batik Pasha. The methods used are Nordic Body Map (NBM), Rapid Upper Limb Assessment (RULA), and Quick Exposure Check (QEC). The results of the ergonomics measurement of workers experience complaints in several parts of the body, as well as the final score of the Rapid Upper Limb Assessment (RULA) method of 7, and the Quick Exposure Check (QEC) level 3, these results indicate the need for an immediate view and change. The work action that can be done is that the worker stretches the muscles and changes the shape of the immersion bath according to anthropometry. The conclusion of this study is that the work posture of the dyeing station at SME’s Batik Pasha needs immediate changes. Keyword: Dyeing, Nordic Body Map (NBM), Rapid Upper Limb Assesment (RULA), Quick Exposure Check (QEC), Work Posture
Perbaikan Kemasan Kripik Kulit Singkong pada UMKM ‘The Jambal’s’ dengan Menggunakan Metode Kansei Engineering dan Quality Function Deployment
Authors: Jatmiko Hapsoro Agung , Rahmadia Safinta Nurindra , Kurniawan Afan , Rufi’i Imam , Reicardi Arjuna
Published: June 2024

Kemasan memainkan peranan penting dalam sebuah pembungkus makanan, selain sebagai perlindungan makanan dari beberapa zat berbahaya dan tidak diinginkan, kemasan memiliki fungsi lain yang dapat dipergunakan sebagai identitas ataupun sarana informasi bagi perusahaan yang memiliki produk makanan tersebut. Kemasan yang menarik juga dapat menjadi selling point karena dapat menarik minat dari para pembeli untuk kembali membeli produk terkait, namun permasalahan kemasan ini masih belum banyak diperhatikan oleh UMKM, padahal hal tersebut bisa menjadi faktor pendorong bagi UMKM untuk terus berkembang. The Jambal’s, adalah UMKM yang bergerak di produk kripik kulit, memiliki potensi besar sebagai penyedia layanan jajanan makanan, namun kemasan yang dipergunakan masih belum sepenuhnya membangkitkan potensi dari UMKM tersebut. Salah satu metode yang memasukkan unsur emosi, salah satunya estetika dalam pengembangan produk, adalah Kansei Engineering (KE), metode ini kemudian dikolaborasikan dengan Quality Function Deployment dimana pengembangan kemasan tetap berdasarkan dari kebutuhan konsumen yang didapat dari emosi melalui proses KE. Hasil akhir pada penelitian ini adalah kemasan yang telah sesuai dengan apa yang diinginkan konsumen serta memunculkan unsur estetika di dalamnya.
EVALUASI PENERAPAN SISTEM MANAJEMEN MUTU ISO 9001 : 2008 MENGGUNAKAN METODE GAP ANALYSIS PADA PERUSAHAAN MANUFAKTUR
Authors: Mutmainah Mutmainah , Matawae Muhammad Firmansyah
Published: June 2024

Perusahaan yang memproduksi stamping logam dan komponen las untuk pembuatan otomotif dan alat musik telah mempertahankan akreditasi ISO 9001:2008. Perusahaan saat ini sedang dalam proses transisi ke ISO 9001:2015. Meskipun ada perubahan pada divisi secara keseluruhan, perusahaan masih menggunakan prosedur kerja kuno. Instruksi kerja dan formulir yang digunakan saat ini juga telah mengalami penambahan atau penyesuaian sebagai akibat dari perubahan berbagai tahapan pekerjaan dan perlunya pencatatan yang lebih luas dalam proses produksi. Oleh karena itu penelitian ini menggunakan metode gap analysis yang bertujuan untuk mengevaluasi kondisi perusahaan saat ini. Hasil yang didapat dari metode gap analysis berupa perbandingan antara kondisi sebenarnya yang ada di perusahaan dengan persyaratan klausul-klausul yang ada di sistem manajemen mutu ISO 9001: 2008 sehingga dapat diketahui kekurangan dari sistem yang ada sebelumnya untuk melakukan perbaikan dalam rangka kesiapan menuju sistem manajemen mutu ISO 9001: 2015. Hasil pengolahan data didapatkan bahwa penerapan sistem manajemen mutu ISO 9001: 2008 sudah berjalan dengan cukup baik. Klausul 4 mendapatkan pencapaian sebesar 88% dengan gap sebesar 12%, klausul 5 mendapatkan pencapaian sebesar 89,50% dengan gap sebesar 10,50%, klausul 6 mendapatkan pencapaian sebesar 89% dengan gap sebesar 11%, klausul 7 mendapatkan pencapaian sebesar 87,25% dengan gap sebesar 12,75%, dan klausul 8 mendapatkan pencapaian sebesar 86,50% dengan gap sebesar 13,50%. Sehingga untuk hasil tertinggi berada pada tingkat implementasi klausul 5 dengan rata-rata nilai persentase pencapaian sebesar 89,55% dan hasil terendah pada tingkat implementasi klausul 8 dengan rata- rata nilai persentase pencapaian sebesar 86,50%.
Analisis Penyebab Risiko pada Rantai Pasok Darah di Masa Pandemi COVID-19 Menggunakan Model Supply Chain Operations Reference (SCOR) dan Failure Modes and Effects Analysis (FMEA)
Authors: Amalina Ninda Nurseha , Liputra David Try , Heryanto Rainisa Maini
Published: June 2024

Kebutuhan darah merupakan sesuatu hal yang perlu mendapat prioritas perhatian karena dapat menyangkut keberlanjutan hidup manusia. Entitas dalam suatu rantai pasok darah dapat terdiri dari Palang Merah Indonesia (PMI) sebagai pemasok darah, bank darah rumah sakit (BDRS) sebagai penyalur darah, dan pasien sebagai konsumen darah. BDRS merupakan unit pelayanan yang bertanggung jawab terhadap ketersediaan darah yang dapat memadai untuk menunjang pelayanan medis. Semenjak masa pandemi COVID-19, kemampuan pemenuhan produk darah di BDRS Kota Bandung mengalami penurunan. Banyak faktor yang menyebabkan terjadinya penurunan pemenuhan produk darah. Pada penelitian ini akan dilakukan identifikasi risiko dan analisis penyebab risiko pada suatu rantai pasok darah di masa pandemi khususnya di BDRS Kota Bandung. Penelitian diawali dengan tahap identifikasi risiko dengan model Supply Chain Operations Reference (SCOR). Penyebab risiko di BDRS dianalisis menggunakan metode Fishbone Analysis. nilai risiko (severity), dan penyebab risiko (occurrence) dinilai menggunakan metode Failure Mode and Effect Analysis (FMEA). Hasil penelitian menunjukkan terdapat 34 risiko dan 29 penyebab risiko yang teridentifikasi. Melalui penelitian ini diharapkan BDRS dapat mengidentifikasi dan menganalisis risiko serta penyebabnya agar BDRS dapat segera melakukan penanganan sehingga permasalahan dalam rantai pasok darah dapat diminimasi.
Penerapan Metode AHP dalam Pemilihan Material Pembuatan Alat Bantu Kerja Proses Pengukuran
Authors: Nelfiyanti N , Yudistirani Sri Anastasia , Bakar Yusrizal , Setiawan Andry , Pangestu Rayhan
Published: June 2024

Industri UMKM memberikan kontribusi terhadap pertumbuhan ekonomi di Indonesia. Proses produksi pada industri UMKM ini merupakan hal yang penting dikarenakan pada proses ini terjadi perubahan dari material bahan baku menjadi produk jadi. Proses produksi pada bagian pengukuran di industri UMKM ini dilakukan bukan di meja melainkan dilakukan dilantai, hal ini sangat berbahaya jika dilakukan secara terus – menerus. Diperlukan alat bantu untuk membatu proses tersebut. Penelitian ini bertujuan untuk memprioritaskan alternatif material yang akan digunakan dalam membuat alat bantu kerja. Penelitian ini menggunakan metode Analytical Hierarchy Process (AHP) untuk proses pengambilan keputusan. Berdasarkan perhitungan yang sudah dilakukan didapatkan prioritas pertama pemilihan material alat bantu pembuatan meja ini yaitu dengan menggunakan besi hollow dengan nilai bobot 0.449. alternatif material ke dua yaitu kayu degan nilai bobot sebesar 0.284 dan prioritas terakhir adalah aluminium dengan nilai bobot sebesar 0.267. Dapat disimpulkan bahwa material hollow merupakan material terpilih yang dapat digunakan dalam pembuatan alat bantu kerja.
Penentuan Jumlah Pegawai Bagian Farmasi untuk Mengurangi Total Waktu Menunggu Pasien Rawat Jalan dan Pasien Rawat Inap dengan Metode Simulasi
Authors: Liputra David Try , Arisandhy Vivi , Menori Christophorus Ivander
Published: June 2024

Penelitian Tamzil (2018) telah mengusulkan penambahan jumlah pegawai bagian farmasi yang melayani pasien rawat jalan dan pasien rawat inap untuk mengurangi waktu menunggu pasien. Pada penelitian ini akan dilakukan pengkajian kembali mengenai usulan penambahan pegawai tersebut, baik yang melayani pasien rawat jalan maupun pasien rawat inap. Hal ini bertujuan untuk memperoleh kombinasi jumlah pegawai yang lebih baik lagi sehingga total waktu menunggu dapat menjadi lebih singkat lagi. Penentuan jumlah pegawai tersebut akan menggunakan metode simulasi dimana skenario yang diusulkan adalah sebanyak 3 skenario. Selain itu, untuk mencapai ketentuan Standar Pelayanan Minimal Rumah Sakit, maka diterapkan juga alternatif perubahan. Alternatif perubahan untuk Bagian Rawat Jalan ada 2, yaitu penambahan pegawai rawat jalan sebanyak 2 orang serta penambahan pegawai rawat jalan sebanyak 1 orang dan pegawai input sebanyak 1 orang. Alternatif perubahan untuk Bagian Rawat Inap, yaitu penambahan pegawai yang mengantarkan obat menuju nurse station sebanyak 1 orang. Berdasarkan hasil penelitian, maka diketahui bahwa skenario usulan 3 alternatif 2 menghasilkan waktu menunggu obat yang lebih singkat untuk pasien rawat jalan, sedangkan untuk pasien rawat inap skenario 3 yang menghasilkan waktu menunggu obat yang lebih singkat. Waktu menunggu obat untuk pasien rawat jalan sudah memenuhi ketentuan Standar Pelayanan Minimal Rumah Sakit, namun untuk pasien rawat inap tidak ada alternatif yang memungkinkan untuk mencapai standar yang ditetapkan. Hal ini disebabkan pengantaran obat menuju ke nurse station sudah membutuhkan waktu 1,5 jam. Oleh karena itu, pihak rumah sakit perlu meninjau kembali sistem pelayanan pegawai rawat inap.
Pengaruh Kombinasi Akupresur Tuina dan Konsumsi Buah Pepaya Terhadap Berat Badan Balita
Authors: Anggraini Sekarlita Normaulida , Rinata Evi , Widowati Hesty
Published: June 2024

Latar Belakang: Akupresur tuina dan konsumsi buah pepaya bisa menjadi cara lain bagi orang tua untuk membantu anak menambah berat badan. Tujuan: Penelitian ini bertujuan untuk mengetahui pengaruh akupresur Tuina dan konsumsi buah pepaya terhadap berat badan anak. Metode: Metode penelitian berikut ialah Quasi eksperimen pre-test dan post-test, dimana 33 responden yang memenuhi kriteria inklusi dibagi menjadi 3 kelompok yaitu Kelompok 1 diberikan Akupresur Tuina, Kelompok 2 diberikan Kombinasi Akupresur dan konsumsi pepaya dan kelompok 3 tidak diberi perlakuan menggunakan teknik simple random sampling. Data yang diperoleh dari penelitian berikut akan dicatat pada lembar observasi dan formulir survei dan perbedaan akan dianalisis menggunakan uji Paired T Test dan analisis bivariat menggunakan uji ANOVA satu arah. Hasil: Hasil Paired T Test menunjukkan nilai signifikan p = 0,000 yang menunjukkan adanya peningkatan berat badan balita sebelum dan sesudah perlakuan dan hasil uji One Way ANOVA menunjukkan nilai signifikansi p = 0,441. yang tidak didapatkan perbedaan berat badan pada kelompok perlakuan akupresur Tuina, kelompok kombinasi dan kelompok kontrol. Simpulan: Kombinasi akupresur tuina dan konsumsi buah papaya memiliki pengaruh terhadap berat badan anak.
Carbon Footprint: Scientometric Analysis of Publications From The Capes Thesis and Dissertations Database, Brazil
Authors: Macedo Humberto Rodrigues , Luiz Junior Olavo José , Feiden Aldi
Published: June 2024

Objective: The aim of this study was to analyze the scientific interest in the theme of Carbon Footprint in postgraduate programs in Brazil.
 
Theoretical Framework: The impact of human activities on nature, based on the amount of carbon dioxide emitted into the atmosphere, forms the Carbon Footprint. Scientometrics is defined as the study of measuring and quantifying scientific progress on a given theme. The CAPES Catalog of Theses and Dissertations is the official database of the Brazilian government.
 
Method: Descriptive research, with a quantitative approach to the term carbon footprint, carried out by means of a bibliometric study. Data was collected from the CAPES Catalog of Theses and Dissertations and from published articles.
 
Results and Discussion: 87 scientific works were found on the theme of Carbon Footprint, from 2 works in 2010 to 13 works in 2023, which generated 44 papers, most of them classified as Qualis A1. Agrarian Sciences and Interdisciplinary were the areas that stood out among the postgraduate programs.
 
Research Implications: Knowledge and the need to advance research into estimating the carbon footprint of different production activities.
 
Originality/Value: This study contributes to the literature by highlighting scientific production on the theme of Carbon Footprint.
COVID-19 y participación ciudadana local en España: evaluación desde la perspectiva de responsables municipales y miembros de consejos consultivos
Authors: Becerril-Viera Isabel , Pasadas-del-Amo Sara
Published: June 2024

Objetivos: analizar las percepciones de los actores sobre el impacto de la pandemia de COVID-19 en la participación ciudadana en España e identificar los factores que influyen en la evaluación de su gravedad. Este análisis se basa en información de dos proyectos de investigación sobre participación ciudadana local, modificados tras la declaración de la pandemia por la OMS para incluir este nuevo contexto. Metodología: se utilizaron métodos mixtos de investigación. Los datos cuantitativos se recogieron mediante encuestas web dirigidas a responsables de participación ciudadana en municipios de más de 1000 habitantes en Andalucía y Madrid, así como a miembros de consejos consultivos andaluces. La información cualitativa se obtuvo mediante entrevistas semiestructuradas con informantes clave de los casos seleccionados. Resultados: la pandemia interrumpió o trasladó las iniciativas al formato online. La percepción de la gravedad es más pronunciada en municipios con mayores recursos para la participación y en aquellos gobernados por partidos de izquierda. El estudio identifica obstáculos significativos para la participación ciudadana debido a la pandemia, con variaciones según la gobernanza local y la disponibilidad de recursos. Conclusiones: estos hallazgos subrayan la importancia de considerar los factores políticos y de recursos al evaluar la resiliencia de las iniciativas participativas durante crisis.