bluuebunny/crossref_metadata_2025 huggingface dataset:
Gestión participativa del agua para uso doméstico: el caso de San Francisco Huilango, Tochimilco, Puebla.
Authors: Tomé Hernández Griselda , Villarreal Manzo Luis Alberto
Published: June 2023

En este estudio se analiza el sistema de gobernanza del agua del modelo de gestión comunitaria para uso do­méstico en San Francisco Huilango, Tochimilco, Puebla a partir de los principios de gobernanza propuestos por la Organización para la Cooperación y el Desarrollo Económicos (OCDE), con el objetivo de evaluar si el sistema es eficaz, eficiente e incluyente, y ayudar a ajustarlo en donde sea necesario. Para el efecto, se combinó trabajo de campo y análisis en gabinete para efectuar la revisión de diversas fuentes secundarias. Se aplicaron 68 encuestas a actores sociales y 12 entrevistas semi estructuradas dirigidas a actores clave. El modelo estu­diado, una adaptación local comunitaria a partir de la gestión integrada de recursos hídricos (GIRH) reflejó seis de doce indicadores analizados; por lo tanto, desde el planteamiento y con la puntuación de la OCDE, el sistema de gobernanza del agua no es efectivo y es solo medianamente eficiente. Sin embargo, destaca su capacidad para crear confianza entre la población y en garantizar que la toma de decisiones se efectué de abajo hacia arriba, de manera incluyente y transparente. La conclusión del estudio es que para lograr una gobernanza efectiva y eficaz del agua resulta inaplazable fortalecer las capacidades de gestión de las comunidades rurales y promover su reconocimiento social, político y jurídico.
Transmisión del conocimiento herbolario y sus beneficios en la comunidad mazahua otomí, Estado de México.
Authors: Zúñiga Joel Rodríguez , Marín Togo María Consuelo , González Guillén Manuel de Jesús
Published: June 2023

En México, el uso de las Plantas Medicinales (PM) como remedio natural es una práctica ancestral. Sin embargo, hay poca información de vinculación entre el conocimiento empírico y fenomenológico del uso y utilidad de ellas. El objetivo fue analizar la transmisión del conocimiento (TC) de la herbolaria de padres a hijos de la comunidad mazahua otomí, y determinar el beneficio económico familiar. La investigación sobre conocimiento, usos y beneficios de las PM se realizó a través de observación y aplicación de una encuesta estructurada a estudiantes mazahuas otomís de las ciencias de la salud, a sus padres o tutores y a personas de sus comunidades. De los estudiantes 84% se identifican con la etnia. Existe una TC sobre PM de 10% de padres o tutores a hijos, y 32% opina que hay un ahorro económico por uso de PM entre 10% y 50%. La TC se da mayormente en plantas menos conocidas y de distribución local. El estudiante rescata y fomenta el uso tradicional de las PM y existe una relación en sus usos con la etnia y ahorro económico por gastos médicos. Esto puede contribuir a aliviar la pobreza de manera efectiva, justa y sostenible.
Digital Detox
Authors: Gray Brenna Clarke
Published: June 2023

This paper reviews the Digital Detox project at TRU. At TRU, the Digital Detox is not necessarily about abstaining from technology altogether, but rather establishing a more ethical, healthier approach to the tools we are required to use every day. Conceived this way, a Digital Detox offers an approachable opportunity to discuss difficult and controversial topics in educational technologies. The objective of this paper is to offer description and analysis of one strategy to improve university community engagement on issues of ethics and educational technologies. In addition to understanding our own process for creating this resource at TRU, this paper provides a “toolkit” for starting a Digital Detox event at any campus.
A Protocol for Co-Authored Academic Writing: The “Draft-in-a-Day”
Authors: Locke Sean , Jung Mary , Osborne Jenna
Published: June 2023

The iterative process of writing a co-authored manuscript in sport and exercise psychology may take several months to complete. Draft-in-a-day is an alternative group-based approach to writing that draws on concepts from sport and exercise psychology to efficiently write the first draft of a manuscript, while providing rich opportunities for trainees to develop their writing skills. The purpose of this paper was to explore the usefulness and acceptability of draft-in-a-day by examining individuals’ experiences using the draft-in-a-day protocol.  Twelve participants (4 professors, 8 trainees) who had used the draft-in-a-day protocol completed an online questionnaire about their experiences. Participant responses were inductively content analyzed. Participants were receptive to the draft-in-a-day method of writing, reported being very likely to use it in the future (M = 4.9, SD = 0.28; scale 1-5), and provided suggestions for improvement. This early stage research provides a framework for efficient group-based writing in sport and exercise psychology.
Hydrothermal Synthesis of Mordenite Type Zeolite
Authors: ANAS BOUSSAA Sabiha , NIBOU Djamel , BENFADEL Karima , TALBI Lamia , BOUKEZZATA Assia , OUADAH Yahia , ALLAM Djaouida , KACİ Samira
Published: June 2023

Zeolite is a crystalline alumino-silicate microporous material, which has been widely used as ion-exchangers, adsorbent and catalyst.

Recently, several researches highlights the progress of zeolite-based catalysts in the CO2 conversion to valuable products.

In the present work, hydrothermal synthesis of mordenite zeolite crystals, with composition of the chemical products Al2O3, 12.5 SiO2,2.4 NaOH, 110 H2O at 160°C for 96 hours (4 days) at Ph 11 is described.

Results of characterization of the mordenite zeolite by XRD, FTIR, EDAX, SEM, TGA, are presented and discussed.

In the present work, hydrothermal synthesis and characterization of mordenite zeolite crystals is described.
Literacy Training of Halal Food for SMEs as the Opportunity to Penetrate the Global Market
Authors: Wibowo Mas Wahyu , Indrajaya Sonny , Permana Dudi
Published: June 2023

Halal food has become the global phenomenon, where the demand of the product are rising due to the growth of Muslim consumers worldwide. Halal food also perceived beyond its basic function where the consumers consider the product to fulfill their halal lifestyle. During the sperad of Corona-19 virus, halal food economic performance remains the strongest amongst the other sector within the halal industry. In this regard, the current community service aims to provide literacy to the SMEs related to the potential of halal food business during the pandemic era. Further, the Indonesian halal certification body has recognized by more than 50 international halal certification bodies. Therefore, SMEs has the opportunity to penetrate the global market with halal food.
“Let Your Stress Go and Be the Winner!” Pelatihan Manajemen Stres Bagi Siswa dalam Menhadapi Ujian
Authors: Risnawati Erna , Kartiningtyas Ratri , Aqmarina Fatma Nur
Published: June 2023

Adolescence is a time when individuals develop their ideal self that they will achieve in the future. A teenager begins to think abstractly and has various hopes in the future or achieves goals. In an effort to achieve this dream, teenagers are required to take various school exams such as the UN, SBMPTN, UTBK, etc. Unfortunately, teenagers often feel pressured and stressed when facing these various tests which have an impact on psychological health. Often we find teenagers who have "lost" mentally before facing the real school exam. This happens because of unstable emotional conditions in adolescence, low ability to regulate emotions, lack of support from the environment to support adolescents not only in cognitive aspects but also in emotional aspects. When teenagers are able to regulate emotions by doing a good stress management, it will increasingly support teenagers in reaching their goals and future with more focus and calm in facing exams.
Pemasaran Hasil Sayuran Hidroponik Dalam Perkembangan Hasil Tanaman Hidroponik Yang Telah Dilakukan di Desa Penebel Kecamatan Penebel Kabupaten Tabanan
Authors: Arcana Gede Bagus , Permana Gusi Putu Lestara , Wedananta Kadek Adyatna
Published: June 2023

Tanaman hidroponik saat ini sudah menjadi hits di kalangan anak muda karena pemerdayaan nya yang sangat gampang dan hasil dari tanaman hidroponik pun bisa sangat menguntungkan. Maka dari itu penulis sangat ingin mengembangkan tanaman hidroponik sampai ke pelosok negara agar setiap masyarakat dapat mengetahui manfaat dari tanaman hidroponik, selain itu penulis juga mengembangkan cara pemasaran tanaman hifroponik di desa penebel dengan cara melakukan penyuluhan langsung ke masyarakat. Sudah banyak cara di lakukan agar masyarakat dengan mudah dapat memahami hal-hal yang ingin di sampaikan penulis melalui kegiatan kkn yang di lakukan, ternyata sudah banyak masyarakat yang mengetahui tentang tanaman hidroponik, kemudian penulis melakukan penyuluhan tentang cara pemasaran yang benar dan tepat agar setiap penjualan yang di lakukan dari hasil tanaman hidroponik dapat bermanfaat besar bagi perekonomian masyarakat.
Understanding Eco-Sustainability through Lotha Naga Folktales: Analyzing Jasmine Patton’s A Girl Swallowed by a Tree
Authors: Bhattacharya Panchali
Published: June 2023

The Lotha Nagas are one of the major Indigenous communities of Nagaland who inhabit the hilly mid-western part of the state. The tribe has a rich reservoir of folktales that have not been written about through the medium of literature. Nzanmongi Jasmine Patton’s A Girl Swallowed by a Tree: Lotha Naga Tales Retold (2017) is the first-ever anthology of Lotha Naga folktales in English which provides the readers with a concise but comprehensive account of the unique Lotha Naga culture. Besides exploring the various aspects of Lotha Naga life in all its complexities and diversities, the thirty folktales in this collection offer an in-depth view of the ecological philosophy of the community which has the potential to offer commonsensible solutions to environmental issues and promote holistic sustainability. The aim of the present study is to unravel the ecological wisdom of the Lotha Nagas as depicted through their oral lore, wisdom that is usually marginalized by the mainstream environmental pedagogy, yet is capable to offer local solutions to the global environmental conundrum. The paper also attempts to draw attention to the rich oral tradition of the Lotha Nagas, traditions that are usually peripheralized but have the potential to be regarded as an invaluable treasure for the other communities living in the country.
A Treatise on the Unpublished Manuscript of The Little Prince Discovered in 2012
Authors: Montoneri Bernard
Published: June 2023

Short article with no abstract
Probiotics alleviate depression-like behavior in mother-infant separation stress rats
Authors: Li Jinling , LI Lingyu , Xiao Wudian , Tang Yong , Dong Wenbin , Liao Xiaoyu , Luo Wen , Li Na , Wang Yaxin , Lei Qing , She Guifang , Du Peiyang , Lei Xiaoping , Sun Hongyan
Published: June 2023

Objective: To observe the changes of depression-like behavior in SD rats
induced by maternal separation (MS) stress and to explore the effects of
probiotics on antidepressant-like behavior and cAMP/CREB signaling
pathway. Methods: Newborn SD rats were selected as experimental subjects
and divided into MS+NS group, CON+NS group, MS+P group and CON+P group
using random number table method, 12 rats in each group. At PND 22-49,
the MS+P and CON+P groups were given 1×109 CFU (0.1 ml) of probiotic
colonies by gavage daily and the corresponding dose (1 ml/100g)
according to the change of body weight, and the MS+NS and CON+NS groups
were given the corresponding saline dose (1 ml/100g). Behavioral tests
were performed at PND50-56, and rats were executed at PND57 for
laboratory tests. Results: FST increased, OPT increased and SPT
decreased after probiotic intervention. It was suggested that the
MS-induced depression-like behavior was improved to some extent.
Compared with the model group, probiotic intervention increased the
number of neurons in the CA1 region of the hippocampus, decreased
serum-associated inflammatory factors, increased serum 5-HT
concentration, and decreased CORT concentration in rats. In addition,
the intervention increased the expression levels of cAMP, CREB and BDNF
in the hippocampus of MS rats. Conclusion: Probiotics can alleviate
anxiety/depression-like behavior in SD rats, which may be related to the
activation of cAMP/CREB signaling pathway. The protective effect of
probiotics as therapeutic food care in preventing or alleviating
MS-induced depression-like behaviors provides an experimental basis for
the application of probiotics to alleviate or improve
anxiety/depression.
Left atrial appendage occlusion for atrial fibrillation and bleeding diathesis
Authors: Kailey Balrik Singh , Koa-Wing Michael , Sutaria Nilesh , Mott Tom , SMA Sohaib , Qureshi Norman , Shi Christine , Padam Pritpal , Howard James , Kanagaratnam Prapa
Published: June 2023

Background: Patients with AF and likelihood of bleeding can
undergo left atrial appendage occlusion (LAAO) as an alternative method
of stroke prophylaxis. Short-term anti-thrombotic drugs are used
post-procedure to offset the risk of device-related thrombus, evidence
for this practice is limited. Objectives: To investigate
optimal post-implant antithrombotic strategy in high bleeding-risk
patients. Methods: Patients with AF and high-risk for both
stroke and bleeding undergoing LAAO were advised their peri-operative
drug therapy by a multi-disciplinary physician panel. Those deemed to be
at higher risk of bleeding from anti-thrombotic drugs were assigned to
minimal treatment with no antithrombotics or aspirin-alone. The
remaining patients received standard care (STG)with a 12week course of
dual-antiplatelets or anticoagulation post-implant. We compared
mortality, device-related thrombus, ischemic stroke and bleeding events
during the 90 days post-implant and long-term. Event-free survival was
assessed using Kaplan-Meier survival analysis, with logrank testing for
statistical significance. Results: 75 pts underwent LAAO of
whom 63pts(84%) had a prior serious bleeding event. The 42pts on
minimal treatment were older(74.3±7.7vs71.2±7.2) with higher HASBLED
score (3.6±0.9vs3.3±1.2) than the 33pts having standard care. There were
no device-related thrombi or strokes in either group at 90 days
post-procedure; STG had more bleeding events (5/33vs0/42,p=0.01) with
associated deaths (3/33vs0/42,p=0.05). During long-term follow up
(median 2.2yrs), all patients transitioned onto no antithrombotic drugs
(43pts(61%)) or a single-antiplatelet (29pts(39%)). There was no
evidence of early minimal treatment adversely affecting long-term
outcomes. Conclusions: Short-term anti-thrombotic drugs may not
be needed after LAAO implant in patients with high bleeding risk and
could be harmful. Larger, prospective studies would be warranted to test
these findings.
Formation Adaption for Obstacle Avoidance and Environment Survey with UAVs
Authors: Xiong zhengqiang , Han chang , Wang xiaoliang
Published: June 2023

A formation adaption algorithm is proposed for obstacle avoidance and
environment survey in three dimension space. Firstly, singular value
feature of incidence matrix for feasible control graph is derived. Then,
an effective diameter has been proposed to characterize the dimension of
3D formations, and been estimated under various operations including
transition, rotation, scaling as well as inner motions. Finally, an
optimal scale factor is figured out for uniform scaling on the basis of
a similarity function. Numerical experiments demonstrate the
effectiveness and efficiency of the proposed algorithm.
Comparative Analysis of Lumped and Semi-distributed Hydrological Models in Humid Mediterranean Environments
Authors: Abbenante Sergio Eduardo , Althoff Ingrid , Valdes-Abellan Javier
Published: June 2023

We inter-compare four hydrological models in terms of their surface
water response simulations and their ability to capture the particular
features of humid Mediterranean climates. We selected the Maule River
basin (central Chile), in particular the Longaví basin as the paradigm
of humid Mediterranean climate to run the study. The area is under
intensive irrigated agricultural exploitation, which jeopardizes
groundwater recharge and may be further pressurized by precipitation
changes due to global warming. The Longaví basin in the south of the
Maule, was studied and its hydrological cycle was simulated using four
simulation tools: GR4J, HBV-light, HEC-HMS and WEAP, hence including
lumped as well as a semi-distributed approaches. For model performance
assessment, the Longaví was sub-divided into three zones with comparable
characteristics in terms of climate, physical soil properties and
altitude classes. Daily hydro-meteorological forcing time series were
provided by official institutions of Chile for the 1979 to 2015 period.
The individual model efficiency was evaluated through usual
deterministic performance indicators. The models exhibit different
strengths in terms of hydrologic response simulations. The results
obtained with GR4J, HEC-HMS and WEAP perform better during southern
hemisphere Winter between June and October, while HBV-light produces
stronger results during the November to May Summer season. The more
heavily parameterized WEAP model tends to better represent the stream
flow variability observed during the rainy season with respect to the
dry season.
Usage rate and Influencing Factor of Internet + Nursing for homebound older patients with chronic illness
Authors: wang xiaoli , Suding Fei , Ning Sun , Mingjun Chen , LiJuan * , LiBinglei *
Published: June 2023

Abstract Aims and Objectives :The purpose of this paper is to
investigate the current state of internet+ nursing for homebound older
adults with Chronic illness Background: The prevalence of chronic
disease is high, but the usage rate of internet + nursing for homebound
older patients is suboptimal in China. Internet+ nursing aims to
maximize olders’ quality of life. However, the service quality does not
match this. Design: This is a cross-sectional observational study.
Methods:A general information questionnaire and an Internet + nursing
questionnaire were developed, and 738 older with chronic illness from
six general hospitals in Zhejiang were randomly sampled and
statistically analyzed. This study was conducted according to the STROBE
guideline. Rresults : Overall, 287 people (38.92 %) were aware of
Internet + nursing, with 132 (17.89 percent) having used Internet +
nursing; 286 people (63.42 %) did not use internet + nursing. 63.42%
were unaware of it, and 43.9 % had no idea how to use a smartphone.
There is a high demand for “Internet+” nursing .Some factors, such as
degree of education, Number of hospitalizations, Course of disease,
Income level, contracted family doctor service, training received, and
smartphone use, which have a statistically significant effect on the use
of Internet + nursing. Conclusions: there is a high demand as well as
low usage rate of Internet + nursing for older patients, and a mismatch
between supply and demand. Relevance to Clinical Practice: Regulation
and policy reforms are needed to optimize the discharge planning ,and
develop high-quality “Internet+” continuous care for older adults with
chronic illness. Patient or Public Contribution: Older patients with
chronic diseases and registered nurses participated in the surveys of
this study. Registered nurses facilitated community-based family doctor
contracting by identifying and introducing the study to patients who
were eligible for study participation.
IoT Based Smart Lead-Acid Battery Management System for Solar and Off-Peak Energy Storage Systems
Authors: Muzammal Muhammad , Awan Laiba , Farooq Asim
Published: June 2023

The new era of automation is obsoleting the antiquated manual systems
rapidly. Global trends are shifting towards small integrated systems
which are smarter, more user-friendly and remotely accessible. This
project presents an intelligent battery management system for solar and
off-peak energy systems to meet the global demands. This
micro-controller-based battery management system stores off-peak and
solar energy in the battery pack consisting of four batteries and aptly
supplies this energy to drive DC and AC loads. The controller is
programmed to automatically shift the load to the next battery in the
sequence when the previous battery is discharged below the permissible
limit. The controller also connects the discharged battery to a smart
charging system that automatically starts charging to maintain an
uninterruptible power supply. Moreover, the system has a monitoring and
control mechanism that prevents intrinsic and extrinsic factors (such as
temperature) from affecting the health of the batteries. The voltage
difference among cells within a battery undermines the battery life
severely. A smart charge equalizer is thus incorporated in the system to
deter this detrimental effect. In addition, the state of charge of each
battery is graphically illustrated through Internet of Things (IoT) so
that any anomaly can be detected and treated, and remote access can be
assured. Thus, this system provides a smart and effective way to store
energy and use it efficiently. Keywords: Battery Management,
Charge equalization, Uninterruptible power supply, Off-peak, Internet of
Things (IoT), Arduino (microcontroller)
One-Dimensional Variational Ionospheric Retrieval Using Radio Occultation Bending Angles: Part 2 - Validation
Authors: Elvidge Sean , Healy Sean B. , Culverwell Ian
Published: June 2023

Culverwell et al. (2023) described a new one-dimensional variational
(1D-Var) retrieval approach for ionospheric GNSS radio occultation
(GNSS-RO) measurements. The approach maps a one-dimensional ionospheric
electron density profile, modeled with multiple ”Vary-Chap’ layers, to
bending angle space. This paper improves the computational performance
of the the 1D-Var retrieval using an improved background model and
validates the approach by comparing with the COSMIC-2 profile
retrievals, based on an Abel Transform inversion, and co-located (within
200 km) ionosonde observations using all suitable data from 2020. A
three or four layer Vary-Chap in the 1D-Var retrieval shows improved
performance compared to COSMIC-2 retrievals in terms of percentage error
for the F2 peak parameters (NmF2 and hmF2). Furthermore, skill in
retrieval (compared to COSMIC-2 profiles) throughout the bottomside
(~90 km to 300 km) has been demonstrated. With a single
Vary-Chap layer the performance is similar, but this improves by
approximately 40% when using four-layers.
Emulation of cloud microphysics in a climate model
Authors: Perkins W. Andre , Brenowitz Noah Domino , Bretherton Christopher S. , Nugent Jacqueline M
Published: June 2023

We present a machine learning based emulator of a microphysics scheme
for condensation and precipitation processes (Zhao-Carr) used
operationally in a global atmospheric forecast model (FV3GFS). Our
tailored emulator architecture achieves high skill (≥94%) in predicting
condensate and precipitation amounts and maintains low global-average
bias (≤4%) for 1 year of continuous simulation when replacing the
Fortran scheme. The stability and success of this emulator stems from
key design decisions. By separating the emulation of condensation and
precipitation processes, we can better enforce physical priors such as
mass conservation and locality of condensation, and the vertical
dependence of precipitation falling downward, using specific network
architectures. An activity classifier for condensation imitates the
discrete-continuous nature of the Fortran microphysics outputs (i.e.,
tendencies are identically zero where the scheme is inactive, and
condensate is zero where clouds are fully evaporated). A
temperature-scaled conditional loss function ensures accurate condensate
adjustments for a high dynamic range of cloud types (e.g., cold,
low-condensate cirrus clouds or warm, condensate-rich clouds). Despite
excellent overall performance, the emulator exhibits some deficiencies
in the uppermost model levels, leading to biases in the stratosphere.
The emulator also has short episodic skill dropouts in isolated grid
columns and is computationally slower than the original Fortran scheme.
Nonetheless, our challenges and strategies should be applicable to the
emulation of other microphysical schemes. More broadly, our work
demonstrates that with suitable physically motivated architectural
choices, ML techniques can accurately emulate complex human-designed
parameterizations of fast physical processes central to weather and
climate models.
Determination of a jump by (E,q) means of Fourier-Stieltjes series
Authors: Kim Jaeman
Published: June 2023

We generalize Fejer?s theorem for Fourier-Stieltjes series of functions of
bounded variation.
A numerical study for coating of ventilation ducts using jet injection
Authors: Sezer Cihan , Kaya Kenan , Onal Selenay , Heperkan Alpay , Ozcan Oktay
Published: June 2023

In this study, the performance of a novel method where an antibacterial solution is pressurized and sprayed into recirculated air through nozzles, is investigated numerically. This resembles a jet in a cross-flow problem where the antibacterial solution mixes with ventilation air and further adheres to the inner surfaces of the duct. The motion of particles dispersed in antibacterial solution is described as the advection of a passive scalar, i.e., temperature, allowing for a single-phase flow solution. The effectiveness of the coating is evaluated by the temperature distribution on the inner surfaces of the duct. Single phase 3-D turbulent flow of air at two different temperatures is modeled and the velocity and temperature fields in the ventilation duct were calculated using the commercial code ANSYS FLUENT. The numerical model is validated by experiments conducted on a full-scale test rig, in terms of temperature. The numerical calculations were conducted in four series: where the effect of the nozzle arrangement, the jet injection angle, the jet-to-cross-flow velocity ratio, and a time-dependent jet velocity profile of a sinusoidal wave form are investigated. The numerical solutions show that the coating is highly inefficient for velocity ratios less than 3.3, and the period of time-varying jet stream has little effect on the coating performance.
Enhancing pool boiling heat transfer of modified surface by 3-D Lattice Boltzmann method
Authors: Huang Qiang , Zhou Jingzhi , Huai Xiulan , Zhou Feng
Published: June 2023

In this study, pool boiling from micro-pillar modified surface has been simulated numerically by a 3-D lattice Boltzmann method. Effects of geometries and wettability of micro-pillar on boiling heat transfer performance were also systematically evaluated. Result showed that compared within micro-pillar surface, heat flux of cubic micro-pillar surface was the highest with the lowest wall temperature. In addition, compared to hydrophilic condition, Heat flux of cubic micro-pillar surface with hydrophobic wettability increased by 98.3%. This is because hydrophobic wettability influenced nucleation site density, vapor-liquid-flow field and heat transfer performance much more than cubic shaped geometry. Finally, heat flux of cubic micro-pillar surface with hybrid wettability increased by 430.7% compared to pure hydrophilic wettability. That is due to optimal hybrid wettability surface could control nucleate site location, restrict bubble growth, and increase obviously heat transfer performance.
A competitive study of a geothermal heat pump equiped with an intermediate economizer for R134a and R513A working fluids
Authors: Aryanfar Yashar , Mohtaram Soheil , Ghazy Ahmed , Kaaniche Khaled , Garcia-Alcaraz Luis , Sun Hongguang
Published: June 2023

At temperatures below 60?C, the best way to use geothermal sources for heating is to use heat pumps. A heat pump can provide air conditioning for a residential, commercial, etc., all year round by heating in winter and cooling in summer using a low temperature source. Also, a heat pump can be used for water distillation through evaporation. The ground source heat pump with a high COP and low temperature thermal energy sources is one of the best technologies for using RES. In the present study, the effects of changing ambient temperature and soil temperature on a heat pump?s overall COP and energy efficiency are investigated using a simulated geothermal heat pump with an economizer. The system?s thermodynamic simulation is first performed in the engineering equation solver software for R134a and R513a working fluids. The exergy destruction of different components for both working fluids was calculated and displayed as a figure. The COP of the heat pump for R134a working fluid is equal to 3.916, equal to 3.729 for R513a working fluid, which indicates that R134a fluid has about 5% better performance. The COP of the system for R134a working fluid is equal to 3.662, which is equal to 3.504 for R513a working fluid, which indicates that R134a fluid has about 4.5% better performance.
Speed and tensile force control of the pulling devices of the continuous line
Authors: Nikolic Sasa , Kocic Igor , Antic Dragan , Mitic Darko , Dankovic Nikola , Milovanovic Miroslav , Djekic Petar
Published: June 2023

In cable production, it is imperative to control speed and tension. This paper proposes a web tensile force regulation between input and output pulling caterpillar devices. The web tensile force is controlled indirectly using a PI controller based on feedback information about tensile force using a tensile observer. This paper also deals with the regulation speed of the input-pulling caterpillar device and the speed and torque (current) of output pulling caterpillar device and deals with the effect of line speed on the temperature change at the extruder zones. The input and output-pulling caterpillar devices are connected by the web material that is processed on them. The input and output-pulling caterpillar devices are connected by the web material that is processed on them. The task was realized using a programmable logic controller Micrologix 1200 controller and SIMOREG DC drives, which regulate the input caterpillar's speed and output caterpillar's torque. The identification of separately excited DC motors parameters was made. Models for the input, output caterpillars and web zone were simulated in MATLAB and SIMULINK. The controllers of the current loop, velocity loop, and tension loop are all integral isolated PI regulators. Speed signal is obtained by tacho generator. In practical realization, tensile force is observed directly from the Simoreg DC converter, eliminating the tension sensor. The tensile force controller is realized with the PI controller, which was realized with programmable logic controller. Setting optimal parameters is performed using ITAE criteria. The ITAE function is calculated using a complex Simpson's quadrature formula.
Comments of the Auditing Standards Committee of the Auditing Section of the American Accounting Association on the PCAOB’s A Firm’s System of Quality Control and Other Proposed Amendments to PCAOB Standards, Rules, and Forms
Authors: Boland Colleen M. , Ege Matthew S. , Harding Noel , Hermanson Dana R. , Prewett Kyleen W. , Pyzoha Jonathan S.
Published: June 2023

On November 18, 2022, the Public Company Accounting Oversight Board (the Board or PCAOB) issued a request for comment on its proposed quality control standard, A Firm’s System of Quality Control and Other Proposed Amendments to PCAOB Standards, Rules, and Forms (Public Company Accounting Oversight Board (PCAOB) 2022). This commentary summarizes the participating committee members’ views on (1) the overall standard and selected questions and (2) recent research that we encourage the PCAOB to consider.
Resilience of laser powder bed fusion additive manufacturing to programmatically induced laser power anomalies
Authors: Cummings Christine , Corbin David J. , Reutzel Edward W. , Nassar Abdalla R.
Published: June 2023

Spatter interactions, varying power or scanner parameters, and uneven powder spreading in laser powder bed fusion (LPBF) can trigger the formation of lack-of-fusion or keyhole pores. In this paper, a strategy to mimic natural process anomalies is developed by varying the programmed laser power in a predefined region over sequential layers in order to understand the physics of pore formation and enable the systematic study of the sensitivity of LPBF processed Ti-6Al-4V to process anomalies. Results indicate that lack-of-fusion pores, caused by a decreased laser power input, and located at a depth equal to or less than the subsequent melt pool depth, are partially or fully healed by subsequent, nominally processed layers. Under conditions tested here, lack-of-fusion pores as deep as two layers (∼120 μm) below the surface are healed on subsequent layers. Conversely, local increases in laser power cause persistent keyhole pores, owing to the depth at which keyhole pores become entrapped into the melt—in this work, up to eight layers or 420 μm deep. These results show that while keyhole-induced porosity remains unaffected by the processing of subsequent layers, LPBF is resilient to a set of process anomalies, which would result in lack-of-fusion if not for subsequent remelting on layers above.
Pérdida de suelo por erosión hídrica superficial en caña de azúcar para producción de panela
Authors: Tauta-Muñoz Jose Luis , Camacho -amayo Jesús Hernán , Rodríguez-Borray Gonzalo Alfredo , Sánchez-Jiménez Richard John , Pulido-Blanco Víctor Camilo
Published: June 2023

La pérdida de suelo por erosión hídrica superficial es uno de los procesos de degradación que más afecta la calidad física del suelo, y produce más área de degradación a nivel mundial. En este estudio se comparó la pérdida de suelo presente en dos métodos de cosecha de caña de azúcar para la producción de panela, donde se consideraron factores como la intensidad de la precipitación, la pendiente del terreno y el tiempo de crecimiento de la planta. Se observó que el momento justo después de la cosecha es cuando se presentan mayores diferencias entre los métodos de corte, donde la pérdida de suelo es mayor al cosechar por “parejo” que al cosechar por “entresaque”. A medida que se desarrolla el cultivo, esta diferencia disminuye, y la pérdida de suelo se ve más influenciada por la intensidad de la precipitación. Finalmente, se compararon las mediciones realizadas después del corte, con una condición de suelo sin cobertura vegetal, donde se observó que las pérdidas de suelo en cultivos ya establecidos con caña eran notablemente menores con respecto a esta condición. Este estudio establece la importancia del mantillo de hojas como factor protector de suelos en cultivos de caña de azúcar para panela.
The Effect of Using a Traditional Mask of Moringa Leaves for Dry Facial Skin Care
Authors: Meilinda Fuji Rahma , Astuti Murni
Published: June 2023

Dry facial skin can be caused by several factors including age, sun exposure, weather, genetics, skin structure, diet, environmental factors, and skin diseases. The purpose of this study was to determine the effect of using traditional Moringa leaf masks for dry facial skin care. This type of research is experimental research with quasi-experimental methods. The research sample consisted of 6 samples using the purposive sampling method. The type of data used is primary data. Data analysis used the normality test, homogeneity test, and hypothesis testing (ANOVA), followed by the Duncan test. Analysis of normality and homogeneity of the data is used to test prerequisite analysis before testing the hypothesis. The results showed that in the control group (X0) without the use of traditional moringa leaf masks, there was no change in the level of skin moisture and the level of smoothness of facial skin texture. In the experimental group X1 and X2 using a traditional leaf mask showed a significant change in the level of moisture and smoothness of facial skin texture. There are differences in the effect of treating dry faces on women aged 35-45 years using traditional masks from Moringa leaves in three different treatments for indicators of moisture and facial skin texture with a significance of 0.016 <0.050.
thestats: An Open-Data R Package for Exploring Turkish Higher Education Statistics
Authors: Çavuş Mustafa , Aydın Olgun
Published: June 2023

There are open datasets available for official statistics, finance, education, and a variety of other domains. The open datasets are published by third-party vendors as well as official authorities. For example, The Turkish Higher Education Council maintains a web portal dedicated to higher education in Türkiye. Detailed datasets about universities, faculties, and departments can be obtained from the portal. Using the data provided by the portal, detailed analysis can be done such as the understanding impact of higher education on activities in the economy connected to movements of the students within or between cities. Especially such activity can be observed in real estate since students rent flats or rooms. Moreover, this data helps researchers analyze changes in students’ preferences in terms of higher education over time. Although this site contains a variety of important information, it does not provide any Application Programming Interfaces (API) or any other possibilities to easily download or query the data in one place. This paper introduces thestats, a user-friendly R data package designed to make higher education statistics easily accessible. Researchers can use the package to query data, which is already scraped from the portal, using the R functions provided by the package. Thanks to the package, researchers do not need to perform any further effort to delve into Turkish higher education statistics. It is sufficient for the researchers to use the package to begin exploring.
Influence of Resource Allocation on Strategy Implementation in Commercialised State Enterprises in Zimbabwe’s Communication Technology and Courier Services Sector
Authors: Mapetere Denver , Manhiwa Esnath Thelma Rumbidzayi , Mangoma Shingai
Published: June 2023

The study sought  to empirically examine the influence of resource allocation on strategy implementation in Commercialised State Owned Enterprises in the Communication Technology and Courier Services Sector of Zimbabwe (CSOEZ). The inquiry was based on a 5-point level of agreement Likert scale questionnaire with a total of 478 respondents completing the questionnaire out of a target population of 836, giving a 57% response rate. Survey data was presented through percentile descriptive statistics and measures of central tendencies of mean, mode and standard deviation whilst ANOVA was used for statistical analysis. The study’s regression analysis confirmed the positive relationship between adequate resource allocation and the number of unattained objectives during strategy implementation. The results of the study concluded that there is inadequate resource allocation during strategy implementation in commercialised state enterprises in Zimbabwe. The study recommended that strategy implementation direct workforce should actively participate in resource allocation; allocation of correct and adequate resources should be timely availed to support strategy execution processes and activities.
Migrant and Refugee Students in New Experiences of Family Ties: Media, Surveillance and Sociability
Authors: Konstantinou Iossif
Published: June 2023

Based on the highly mediatized arrival of migrants and refugees in Greece, over the last decades, this paper focuses on media technologies consumption of Albanian and Syrian students, and analyzes the way family ties are experienced at a distance. Civil wars, anti-regime protests, economic difficulties and climate change have forced large numbers of people to escape from their countries, to live as refugees or displaced from their homeland and to remain in a context of surveillance, uncertainty and insecurity. Media technologies and digital platforms contribute to the communication of family members and national communities in diaspora, give access to information and education. Thus, the aim of this paper is to describe the new experiences of sociability and education for children who have been, or still are in transition and temporary situation. Drawing on two ethnographic studies - one in 2005 on migrant children from Albania living in the agricultural area in Greece, and the other on Syrian refugee families staying in a refugee camp in Athens - the paper presents everyday media practices in the context of the mobility.
What was David Cameron Thinking? Thoughts of a British Prime Minister Regarding
Brexit
Authors:   University of Pécs,
            Hungary, Varga Timea
Published: June 2023

The aim of my research is to examine what David Cameron, Prime Minister of the
United Kingdom, was thinking all the way through the process of the UK’s secession from
the European Union: why he made certain decisions and what influenced him. In order to
do that, I use speeches, parliamentary debates, and memoirs, including several
interviews with the former PM. The research methodology primarily uses the tools of
discourse analysis: I examine the semantic elements, words, sentences and other
characteristics of the political discourse, paying attention to the strategic structure
of speech modes. By interpreting his political thinking and analysing his speeches, I
wish to examine the impact of this leading politician on his own party’s and the
electorate’s views on the EU. Understanding this can help to interpret the relationship
between Britain and Europe, and perhaps in part, give an answer as to why the British
chose to continue outside the Union. Based on this, we can also try to assess what this
relationship will look like in the future.
Optimalisasi Kandang Edukatif (OKE) pada Kelompok Ternak Sapi Perah Tunas Mekar Tanjungsari, Sumedang
Authors: Tanuwiria Ujang Hidayat , Susilawati Iin , Salman Lia Budimulyati , Tasripin Didin Supriat , Mutaqin Bambang Kholiq
Published: June 2023

Rangkaian PPM telah dilaksanakan pada bulan April – September 2022 di Wilayah Tanjungsari, Kabupaten Sumedang. Tujuan dari PPM yaitu meningkatkan pengetahuan dan peningkatan tatalaksana peternakan sapi perah menuju peternakan yang terkategori peternakan sapi perah sesuai Good Dairy Farm (GDF) yang dapat menjadi Edukatif Dairy Farm. Sasaran kegiatan PPM yaitu peternak sapi perah kelompok peternak sapi perah Tunas Mekar Tanjungsari yang tergabung di KSU Tandangsari. Metode PPM yang dilaksanakan yaitu dengan kunjungan langsung dan tanya jawab terbatas dengan kelompok peternak sapi perah Tunas Mekar seputar peternakan sapi perah dan dilanjutkan dengan praktek pembuatan dedak aromatic dan penggunaan probiotik pada konsentrat sapi perah. Peserta yang hadir pada kegiatan penyuluhan terdiri atas kelompok peternak sapi dan mahasiswa. Hasil kegiatan disimpulkan bahwa secara umum peternak sapi perah Tunas Mekar dalam berdiskusi tentang optimalisasi kandang edukatif (OKE) mendapatkan wawasan tentang GDF dalam pengembangan Edukatif Dairy Farm.
Kant y sus filosofías de la historia
Authors: Arias Albisu Martín
Published: June 2023

En diversos textos relacionados con la filosofía de la historia, Immanuel Kant presenta los conceptos de “naturaleza”, “destino” o “providencia” que dan sentido y finalidad a la historia de la humanidad en su conjunto. Estos textos fueron publicados durante las décadas de 1780 y 1790. El objetivo de este artículo es examinar las diferentes formas que adopta la teleología de la naturaleza en estos textos kantianos. Intentaremos mostrar las coincidencias y las diferencias entre las formas mencionadas.
Apuntes acerca de la identificación en la teoría de Ernesto Laclau. Un enlace entre teoría política y psicoanálisis en el pensamiento contemporáneo
Authors: Zaidan Luca
Published: June 2023

El presente artículo toma como objeto de análisis las implicancias políticas de la categoría psicoanalítica de identificación en la obra de Ernesto Laclau, a partir del establecimiento de un vínculo epistemológico entre teoría política y psicoanálisis. A tales efectos, abordaré la apropiación laclausiana de las contribuciones de Sigmund Freud y de Jacques Lacan sobre este fenómeno, para señalar la especificidad de la identificación en tanto mecanismo habilitante de toda constitución subjetiva, en general, así como de toda subjetividad política, en particular.
Global trends in international research collaboration, 1980-2021①
Authors: Aksnes Dag W. , Sivertsen Gunnar
Published: June 2023

Purpose

The aim of this study is to analyze the evolution of international research collaboration from 1980 to 2021. The study examines the main global patterns as well as those specific to individual countries, country groups, and different areas of research.

Design/methodology/approach

The study is based on the Web of Science Core collection database. More than 50 million publications are analyzed using co-authorship data. International collaboration is defined as publications having authors affiliated with institutions located in more than one country.

Findings

At the global level, the share of publications representing international collaboration has gradually increased from 4.7% in 1980 to 25.7% in 2021. The proportion of such publications within each country is higher and, in 2021, varied from less than 30% to more than 90%. There are notable disparities in the temporal trends, indicating that the process of internationalization has impacted countries in different ways. Several factors such as country size, income level, and geopolitics may explain the variance.

Research limitations

Not all international research collaboration results in joint co-authored scientific publications. International co-authorship is a partial indicator of such collaboration. Another limitation is that the applied full counting method does not take into account the number of authors representing in each country in the publication.

Practical implications

The study provides global averages, indicators, and concepts that can provide a useful framework of reference for further comparative studies of international research collaboration.

Originality/value

Long-term macro-level studies of international collaboration are rare, and as a novelty, this study includes an analysis by the World Bank’s division of countries into four income groups.