bluuebunny/crossref_metadata_2025 huggingface dataset:
Korean Adoption to Australia as Quiet and Orderly Child Migration
Authors: Song Jay , Gustafsson Ryan
Published: June 2023

Approximately 3600 Korean children have been adopted to Australia, as of 2023. Existing studies have tended to approach transnational or intercountry adoption from child development, social welfare, or identity perspectives. Research on Korean adoption to Australia is relatively scarce. The current article approaches the population from a migration perspective, building on Richard Weil’s conceptualization of transnational adoption as “quiet migration.” Drawing on both Korean-language data from South Korean governments and Australian data, the authors analyse Korean adoption to Australia as a state-sanctioned transnational migratory mechanism that facilitated the orderly movement of children from so-called “deficient” families of predominantly single mothers in South Korea to adoptive families in Australia. Situating adoption practices within the socio-political contexts and larger migration trends of both countries, the authors identify multiple enabling factors for channelling the ‘quiet’ flow of Korean children for adoption and argue the very ‘quietness’ of the adoption system is a source of concern despite Australia’s relatively stringent regulations. A migration perspective and analysis of these enabling factors contributes to the conceptualization of adoption as a socio-political state-sanctioned phenomenon, rather than a solely private family affair.
Grafting and Plant Density Influence Tomato Production in Organic Farming System
Authors: Caradonia Federica , Francia Enrico , Alfano Vincenzo , Ronga Domenico
Published: June 2023

The tomato is a key crop cultivated worldwide for the fresh and processing markets. Only a small percentage of the tomatoes processed by industries were produced following the guidelines of the organic farming system. Potential reasons for the limited share of organic tomato production are probably related to the lower yield obtained in organic farming in comparison with conventional farming. In this study, the use of the cherry tomato genotype ‘Tomito’ as a rootstock and two different plant densities (2.5 and 1.25 plant m−2) were evaluated in order to improve the agronomic performances of the commercial processing tomato genotype ‘H3402′ cultivated in the organic farming system. Agronomic and quality parameters were assessed at harvest time. The plant density influenced the plant biometric parameters, mass and marketable yield, and fruit health and quality. The use of a rootstock improved the marketable yield per plant (more than 59%), with the quality of the fruit decreasing the number of sunburnt fruits (−27.7%). The use of the ‘Tomito’ as a rootstock and a plant density of 2.5 plant m−2 are the better choices to achieve good performances in optimal environmental conditions. However, further studies are required to validate these results both in other environments and using different scions.
Determining the Appropriate Support for Older Adults with Different Levels of Vitality and Health-Related Quality of Life: An Explanatory Study
Authors: Broekharst Damien S. E. , Bloem Sjaak , Blok Marije , Raatgever Mariët , Hanzen Nathascha , de Vette Jasmien J. E.
Published: June 2023

Vitality and health-related quality of life are often assessed in older adults. However, these assessments do not provide guidance on support for older adults with different levels of vitality and health-related quality of life. This guidance can be established through segmentation. The Subjective Health Experience model segments individuals and indicates support for each segment. By examining how older adults with different levels of vitality and health-related quality of life correspond with each segment and by specifying the indicated support to older adults, guidance can be established. This was examined by administering a questionnaire to 904 older adults and interviewing 8. Analysis was performed using one-way ANOVA and the matrix method. In segment 1, older adults sustained higher levels of vitality and health-related quality of life relative to other segments. They need information and certainty. In segment 2, older adults sustained lower levels of vitality and health-related quality of life relative to segment 1, and higher levels relative to segment 3 or 4. They need planning and structure. In segment 3, older adults sustained lower levels of vitality and health-related quality of life relative to segment 1 or 2, and higher levels relative to segment 4. They need emotive assistance. In segment 4, older adults sustained lower levels of vitality and health-related quality of life relative to other segments. They need personal coaching. As levels of vitality and health-related quality of life correspond with the segments, deploying vitality and health-related quality of life measures together with the model might be beneficial.
Newborn Screening for Fabry Disease: Current Status of Knowledge
Authors: Gragnaniello Vincenza , Burlina Alessandro P. , Commone Anna , Gueraldi Daniela , Puma Andrea , Porcù Elena , Stornaiuolo Maria , Cazzorla Chiara , Burlina Alberto B.
Published: June 2023

Fabry disease is an X-linked progressive lysosomal disorder, due to α-galactosidase A deficiency. Patients with a classic phenotype usually present in childhood as a multisystemic disease. Patients presenting with the later onset subtypes have cardiac, renal and neurological involvements in adulthood. Unfortunately, the diagnosis is often delayed until the organ damage is already irreversibly severe, making specific treatments less efficacious. For this reason, in the last two decades, newborn screening has been implemented to allow early diagnosis and treatment. This became possible with the application of the standard enzymology fluorometric method to dried blood spots. Then, high-throughput multiplexable assays, such as digital microfluidics and tandem mass spectrometry, were developed. Recently DNA-based methods have been applied to newborn screening in some countries. Using these methods, several newborn screening pilot studies and programs have been implemented worldwide. However, several concerns persist, and newborn screening for Fabry disease is still not universally accepted. In particular, enzyme-based methods miss a relevant number of affected females. Moreover, ethical issues are due to the large number of infants with later onset forms or variants of uncertain significance. Long term follow-up of individuals detected by newborn screening will improve our knowledge about the natural history of the disease, the phenotype prediction and the patients’ management, allowing a better evaluation of risks and benefits of the newborn screening for Fabry disease.
Transcultural Comparison of Mental Health and Work–Life Integration Blurring in the Brazilian and Spanish Populations during COVID-19
Authors: Hincapié Pinzón Juanita , da Silva Andressa Melina Becker , Machado Wagner de Lara , Moret-Tatay Carmen , Ziebell de Oliveira Manoela
Published: June 2023

The study aimed to compare the impact of Role Blurring on mental health and Work-Life Integration in the Brazilian and Spanish populations during COVID-19. Role Blurring, which is related to resources and demands in the work context, affects coping with stressors arising from role overlapping and impacts individuals’ perception of work overload and mental health. The sample consisted of 877 adults from Spain (n = 498) and Brazil (n = 372), and various statistical analyses were conducted to compare the groups. Results showed that Role Blurring is linked to symptoms of anxiety, depression, and stress, as well as suicidal ideation. Therefore, it is essential to promote working conditions that limit expectations on availability and favor disconnection from work during leisure time. Public policies that intervene, promote, and prevent psychosocial risk factors in emergent contexts are crucial to prevent suicidal ideation and attempts. Considering the high expected influence of Blurring as a focus of interventions can be reflected in the medium term in the indicators of well-being and satisfaction of companies, institutions and organizations. This can result in the reduction of health costs aimed at cushioning post-COVID-19 impacts on mental health. The study is relevant to understand the impact of the pandemic and technology on mental health and suggests the need for interventions to promote work-life balance and prevent psychosocial risks.
Effect of Laminated Core Body Size on Motor Magnetic Properties
Authors: Yun Kyyoul
Published: June 2023

The magnetic characteristics of electromagnetic steel sheets used for motors are evaluated under ideal sinusoidal excitation. However, in actual equipment driving, excitation by pulse-width modulation (PWM) waves is the mainstream method. Therefore, it is necessary to clarify how the magnetic properties used in motors are changed by sinusoidal excitation and inverter excitation. To clarify the magnetic properties of the laminated core by inverter excitation, samples with different core sizes were prepared and the effects on the magnetic properties were then investigated. The magnetic properties were measured by changing only the input voltage VDC while maintaining the carrier frequency and modulation factor constant. As the results, the iron loss values of the small, medium, and large samples with inverter excitation were 6.05, 9.58, and 11.62 W/kg, respectively. The iron losses of the small, medium, and large toroidal cores with inverter excitation increased by 124.9, 256.1, and 332.0%, respectively, compared with the iron loss of each toroidal core with sinusoidal excitation. The larger the body, the higher the required voltage and iron loss. It can be inferred that a larger amount of energy was required to excite a larger toroidal core. This was because the change in magnetic flux density per unit time of the large toroidal core was greater than that of other cores. This indicates that the large toroidal core generated larger eddy currents than other cores. Therefore, it is possible to say that large toroidal cores generate greater eddy current losses than other cores.
Mathematical Modeling of Brain Swelling in Electroencephalography and Magnetoencephalography
Authors: Papargiri Athena , Fragoyiannis George , Kalantonis Vasileios S.
Published: June 2023

In the present paper, the forward problem of EEG and MEG is discussed, where the head is modeled by a spherical two-shell piecewise-homogeneous conductor with a neuronal current source positioned in the exterior shell area representing the brain tissue, while the interior shell portrays a cerebral edema. We consider constant conductivity, which assumes different values in each compartment, where the expansions of the electric potential and the magnetic field are represented via spherical harmonics. Furthermore, we demonstrate the reduction of our analytical results to the single-compartment model while it is shown that the magnetic field in the exterior of the conductor is a function only of the dipole moment and its position. Consequently, it does not depend on the inhomogeneity dictated by the interior shell, a fact that verifies the efficiency of the model.
Dynamic Response Analysis of Projectile Target Penetration Based on an FE-SPH Adaptive Coupling Method
Authors: He Tianyi , Wu Weidong , Zhu Yuan , Jiang Yaqin , Mei Yong , Lv Yuzheng , Shao Jianli , Sun Yunhou
Published: June 2023

The penetration of projectiles into targets has a broad background in engineering. In this work, numerical simulations of the projectile-target penetration problem are conducted using the Finite Element Method (FEM), the Smoothed Particle Hydrodynamics (SPH) and the Finite Element–Smoothed Particle Hydrodynamics Adaptive Coupling Method (FE-SPH ACM) based on the LS-DYNA software package. First, the penetration experiments using aluminum targets and ceramic targets are simulated. The experimental and simulation results show that the FE-SPH ACM has the better accuracy in calculating the debris cloud head velocity and interface velocity, with an error of no more than 4%. Furthermore, we use the FE-SPH ACM to investigate the anti-penetration performance of aluminum/ceramic composite targets in different combinations. We find that the reasonable layout can improve the protective performance of multi-layered target, especially composite target plates with ceramic as the front layer. In addition, the ballistic limit velocities for ceramic-aluminum ratios of 3/7, 5/5 and 7/3 are approximately 1300 m/s, 1400 m/s and 1500 m/s, respectively. Obviously, increasing the proportion of ceramic materials can enhance the anti-penetration performance.
MPC-ESO Position Control Strategy for a Miniature Double-Cylinder Actuator Considering Hose Effects
Authors: Ma Tengfei , Wang Bin , Wang Zhenhao
Published: June 2023

Miniature hydraulic actuators are especially suitable for narrow-space and harsh environment arrangement. However, when using thin and long hoses to connect components, the volume expansion caused by pressurized oil inside can have significant adverse effects on the performance of the miniature system. Moreover, the volumetric variation relates to many uncertain factors that are difficult to describe quantitatively. This paper conducted an experiment to test the hose deformation characteristics and presents the Generalized Regression Neural Network (GRNN) to describe the hose behavior. On this basis, a system model of a miniature double-cylinder hydraulic actuation system was established. To decrease the impact of nonlinearity and uncertainty on the system, this paper proposes a Model Predictive Control (MPC) based on Augmented Minimal State-Space (AMSS) model and Extended State Observer (ESO). The extended state space acts as the prediction module model for the MPC, and the disturbance of the ESO estimates is fed to the controller to improve the anti-disturbance capability. The full system model is validated by comparison between the experiment and the simulation. For a miniature double-cylinder hydraulic actuation system, the proposed MPC-ESO control strategy contributes to a better dynamic than conventional MPC and fuzzy-PID. In addition, the position response time can be reduced by 0.5 s and achieves a 4.2% reduction in steady-state error, especially for high-frequency motion. Moreover, the actuation system with MPC-ESO exhibits better performance in suppressing the influence of the load disturbance.
6-Methylcoumarin Promotes Melanogenesis through the PKA/CREB, MAPK, AKT/PI3K, and GSK3β/β-Catenin Signaling Pathways
Authors: Kim Taejin , Kang Jin-Kyu , Hyun Chang-Gu
Published: June 2023

We investigated the effects of four coumarin derivatives, namely, 6-methylcoumarin, 7-methylcoumarin, 4-hydroxy-6-methylcoumarin, and 4-hydroxy-7-methylcoumarin, which have similar structures on melanogenesis in a murine melanoma cell line from a C57BL/6J mouse called B16F10. Our results showed that only 6-methylcoumarin significantly increased the melanin synthesis in a concentration-dependent manner. In addition, the tyrosinase, TRP-1, TRP-2, and MITF protein levels were found to significantly increase in response to 6-methylcoumarin in a concentration-dependent manner. To elucidate the molecular mechanism whereby 6-methylcoumarin-induced melanogenesis influences the melanogenesis-related protein expression and melanogenesis-regulating protein activation, we further assessed the B16F10 cells. The inhibition of the ERK, Akt, and CREB phosphorylation, and conversely, the increased p38, JNK, and PKA phosphorylation activated the melanin synthesis via MITF upregulation, which ultimately led to increased melanin synthesis. Accordingly, 6-methylcoumarin increased the p38, JNK, and PKA phosphorylation in the B16F10 cells, whereas it decreased the phosphorylated ERK, Akt, and CREB expressions. In addition, the 6-methylcoumarin activated GSK3β and β-catenin phosphorylation and reduced the β-catenin protein level. These results suggest that 6-methylcoumarin stimulates melanogenesis through the GSK3β/β-catenin signal pathway, thereby affecting the pigmentation process. Finally, we tested the safety of 6-methylcoumarin for topical applications using a primary human skin irritation test on the normal skin of 31 healthy volunteers. We found that 6-methylcoumarin did not cause any adverse effects at concentrations of 125 and 250 μM. Our findings indicate that 6-methylcoumarin may be an effective pigmentation stimulator for use in cosmetics and the medical treatment of photoprotection and hypopigmentation disorders.
Terroir Influence on Polyphenol Metabolism from Grape Canes: A Spatial Metabolomic Study at Parcel Scale
Authors: Billet Kévin , Salvador-Blanes Sébastien , Dugé De Bernonville Thomas , Delanoue Guillaume , Hinschberger Florent , Oudin Audrey , Courdavault Vincent , Pichon Olivier , Besseau Sébastien , Leturcq Samuel , Giglioli-Guivarc’h Nathalie , Lanoue Arnaud
Published: June 2023

The composition of bioactive polyphenols from grape canes, an important viticultural byproduct, was shown to be varietal-dependent; however, the influence of soil-related terroir factors remains unexplored. Using spatial metabolomics and correlation-based networks, we investigated how continuous changes in soil features and topography may impact the polyphenol composition in grape canes. Soil properties, topography, and grape cane extracts were analyzed at georeferenced points over 3 consecutive years, followed by UPLC-DAD-MS-based metabolomic analysis targeting 42 metabolites. Principal component analyses on intra-vintage metabolomic data presented a good reproducibility in relation to geographic coordinates. A correlation-driven approach was used to explore the combined influence of soil and topographic variables on metabolomic responses. As a result, a metabolic cluster including flavonoids was correlated with elevation and curvature. Spatial metabolomics driven by correlation-based networks represents a powerful approach to spatialize field-omics data and may serve as new field-phenotyping tool in precision agriculture.
Chemical Composition of Essential Oil of Cymbopogon schoenanthus (L.) Spreng from Burkina Faso, and Effects against Prostate and Cervical Cancer Cell Lines
Authors: Bayala Bagora , Coulibaly Laetizia Liz , Djigma Florencia , Bunay Julio , Yonli Albert , Traore Lassina , Baron Silvère , Figueredo Gilles , Simpore Jacques , Lobaccaro Jean-Marc A.
Published: June 2023

The aim of this research was to evaluate the essential oil of Cymbopogon schoenanthus (L.) Spreng. (C. schoenanthus) from Burkina Faso in terms of cytotoxic activity against LNCaP cells, derived from prostate cancer, and HeLa cells, derived from cervical cancer. Antioxidant activities were evaluated in vitro. Essential oil (EO) was extracted by hydrodistillation and analyzed by GC/FID and GC/MS. Thirty-seven compounds were identified, the major compounds being piperitone (49.9%), δ-2-carene (24.02%), elemol (5.79%) and limonene (4.31%). EO exhibited a poor antioxidant activity, as shown by the inhibition of DPPH radicals (IC50 = 1730 ± 80 µg/mL) and ABTS+. (IC50 = 2890 ± 26.9 µg/mL). Conversely, EO decreased the proliferation of LNCaP and HeLa cells with respective IC50 values of 135.53 ± 5.27 µg/mL and 146.17 ± 11 µg/mL. EO also prevented LNCaP cell migration and led to the arrest of their cell cycle in the G2/M phase. Altogether, this work points out for the first time that EO of C. schoenanthus from Burkina Faso could be an effective natural anticancer agent.
Transport Characteristics of Silicon Multi-Quantum-Dot Transistor Analyzed by Means of Experimental Parametrization Based on Single-Hole Tunneling Model
Authors: Lee Youngmin , Jun Hyewon , Park Seoyeon , Kim Deuk Young , Lee Sejoon
Published: June 2023

The transport characteristics of a gate-all-around Si multiple-quantum-dot (QD) transistor were studied by means of experimental parametrization using theoretical models. The device was fabricated by using the e-beam lithographically patterned Si nanowire channel, in which the ultrasmall QDs were self-created along the Si nanowire due to its volumetric undulation. Owing to the large quantum-level spacings of the self-formed ultrasmall QDs, the device clearly exhibited both Coulomb blockade oscillation (CBO) and negative differential conductance (NDC) characteristics at room temperature. Furthermore, it was also observed that both CBO and NDC could evolve along the extended blockade region within wide gate and drain bias voltage ranges. By analyzing the experimental device parameters using the simple theoretical single-hole-tunneling models, the fabricated QD transistor was confirmed as comprising the double-dot system. Consequently, based on the analytical energy-band diagram, we found that the formation of ultrasmall QDs with imbalanced energetic natures (i.e., imbalanced quantum energy states and their imbalanced capacitive-coupling strengths between the two dots) could lead to effective CBO/NDC evolution in wide bias voltage ranges.
The Image–Histology Correlation of Subcutaneous mPEG-poly(Ala) Hydrogel-Embedded MIN6 Cell Grafts in Nude Mice
Authors: Juang Jyuhn-Huarng , Chen Chen-Ling , Kao Chen-Wei , Chen Chen-Yi , Shen Chia-Rui , Wang Jiun-Jie , Tsai Zei-Tsan , Chu I-Ming
Published: June 2023

Previously, we have successfully used noninvasive magnetic resonance (MR) and bioluminescence imaging to detect and monitor mPEG-poly(Ala) hydrogel-embedded MIN6 cells at the subcutaneous space for up to 64 days. In this study, we further explored the histological evolution of MIN6 cell grafts and correlated it with image findings. MIN6 cells were incubated overnight with chitosan-coated superparamagnetic iron oxide (CSPIO) and then 5 × 106 cells in the 100 μL hydrogel solution were injected subcutaneously into each nude mouse. Grafts were removed and examined the vascularization, cell growth and proliferation with anti-CD31, SMA, insulin and ki67 antibodies, respectively, at 8, 14, 21, 29 and 36 days after transplantation. All grafts were well-vascularized with prominent CD31 and SMA staining at all time points. Interestingly, insulin-positive cells and iron-positive cells were scattered in the graft at 8 and 14 days; while clusters of insulin-positive cells without iron-positive cells appeared in the grafts at 21 days and persisted thereafter, indicating neogrowth of MIN6 cells. Moreover, proliferating MIN6 cells with strong ki67 staining was observed in 21-, 29- and 36-day grafts. Our results indicate that the originally transplanted MIN6 cells proliferated from 21 days that presented distinctive bioluminescence and MR images.
Effects of Infill Line Multiplier and Patterns on Mechanical Properties of Lightweight and Resilient Hollow Section Products Manufactured Using Fused Filament Fabrication
Authors: Khaliq Jibran , Gurrapu Dharma Raj , Elfakhri Farah
Published: June 2023

Fused Filament Fabrication (FFF) is a popular additive manufacturing process for creating prototypes and end-use products. Infill patterns, which fill the interior of hollow FFF-printed objects, play a crucial role in determining the mechanical properties and structural integrity of hollow structures. This study investigates the effects of infill line multipliers and different infill patterns (hexagonal, grid, and triangle) on the mechanical properties of 3D printed hollow structures. Thermoplastic poly lactic acid (PLA) was used as the material for 3D-printed components. Infill densities of 25%, 50%, and 75% were chosen, along with a line multiplier of one. The results indicate that the hexagonal infill pattern consistently demonstrated the highest Ultimate Tensile Strength (UTS) of 1.86 MPa across all infill densities, out-performing the other two patterns. To maintain a sample weight below 10 g, a two-line multiplier was utilised for a 25% infill density sample. Remarkably, this combination exhibited a UTS value of 3.57 MPa, which is comparable to samples printed at 50% infill density, which were 3.83 MPa. This research highlights the importance of line multiplier in combination with infill density and infill pattens to ensuring the achievement of the desired mechanical properties in the final product.
Cycle Numbers of Cell Surface Recycling Receptors
Authors: Steverding Dietmar
Published: June 2023

The cycle number (nc) of a recycling receptor is defined as the average number of round trips (cell surface–endosome–cell surface) the receptor can make before it is degraded. This characteristic parameter of recycling receptors can be easily determined from the receptor’s half-life (t½, the time in which 50% of the receptor is degraded) and cycling time (Tc, the time a receptor needs to complete a round trip). Relationship analyses revealed that nc increases linearly with increasing t½ and decreases exponentially with increasing Tc. For commonly observed t½ and Tc values, it was calculated that recycling receptors have nc values of <300. In addition, it was found that recycling receptors in cancer cells have generally smaller nc values (<100), whereas recycling receptors in normal cells have larger nc values (>100). Based on this latter finding, the cycle number nc may be a useful criterion for distinguishing between cancer and normal cells.
The Religion of Consumer Capitalism and the Construction of Corporate Sacred Spaces
Authors: Coudert Allison P.
Published: June 2023

If one looks at the United States over the past sixty years, it becomes clear that religious and spiritual practices have proliferated in unexpected places and spaces. They have become thoroughly ensconced in the boardrooms, offices, shop floors, and retail spaces of business establishments. From there, they have seeped into just about every imaginable area of American life, turning schools, parks, shopping malls, sports stadiums, hospitals, gyms, health food restaurants, spas, and the very apps on our computers and cell phones into corporate spaces promising new and enticing forms of spiritual enchantment. The purpose of this essay is to document the way new forms of spirituality have become part of a much longer history of the entanglement of business and religion, a history that began in monasteries, formed the bedrock of the Puritan work ethic, and is now an established aspect of the neoliberal ideal of the privatization and corporatization of all aspects of human life.
Does Heterogeneous Environmental Regulation Induce Regional Green Economic Growth? Evidence from China
Authors: Wu Zihao , Wang Ye
Published: June 2023

Understanding the differences in the effects of heterogeneous environmental regulation (HER) can help governments select optimal environmental regulation (ER) to promote technological innovation (TI) and green economic growth (GEG). This paper chooses Chinese provincial panel data from 2003 to 2017 to investigate the intrinsic link between HER, TI, and GEG. The results show the following: (i) The effectiveness of different types of ER is different, and market incentive-based ER (MIER) is optimal; (ii) Public participation-based ER (PPER) has played a good role in promoting TI; (iii) The impact of executive order-based ER (EOER) on TI is insignificant; (iv) Only MIER-induced TI can contribute to GEG; (v) The effects of HER vary across different regions.
Ordinary Muon Capture on 136Ba: Comparative Study Using the Shell Model and pnQRPA
Authors: Gimeno Patricia , Jokiniemi Lotta , Kotila Jenni , Ramalho Marlom , Suhonen Jouni
Published: June 2023

In this work, we present a study of ordinary muon capture (OMC) on 136Ba, the daughter nucleus of 136Xe double beta decay (DBD). The OMC rates at low-lying nuclear states (below 1 MeV of excitation energy) in 136Cs are assessed by using both the interacting shell model (ISM) and proton–neutron quasiparticle random-phase approximation (pnQRPA). We also add chiral two-body (2BC) meson-exchange currents and use an exact Dirac wave function for the captured s-orbital muon. OMC can be viewed as a complementary probe of the wave functions in 136Cs, the intermediate nucleus of the 136Xe DBD. At the same time, OMC can be considered a powerful probe of the effective values of weak axial-type couplings in a 100 MeV momentum exchange region, which is relevant for neutrinoless DBD. The present work represents the first attempt to compare the ISM and pnQRPA results for OMC on a heavy nucleus while also including the exact muon wave function and the 2BC. The sensitivity estimates of the current and future neutrinoless DBD experiments will clearly benefit from future OMC measurements taken using OMC calculations similar to the one presented here.
Manufacturing of Large and Polished Ceramic Pistons by Cold Isostatic Pressing
Authors: Gerlei Viktor , Kránicz Tibor , Korim Tamás , Jakab Miklós
Published: June 2023

This paper discusses the challenges involved in producing high-quality alumina ceramics, particularly when it comes to achieving a suitable degree of surface roughness and high accuracy. Alumina ceramics are widely used in various applications due to their exceptional properties, including high strength, wear resistance and chemical stability. The alumina ceramic pistons with the desired properties and performance were produced from commercially available raw materials. To improve the densification and mechanical properties of the sintered ceramics, an organic binder was used. The use of a diamond abrasive slurry for polishing was also studied, which has proven to be particularly effective in achieving a high degree of surface finish. The study aims to produce alumina-based pistons with a low level of surface roughness as well as discusses the techniques and methods used to achieve this goal. The results of this paper include the porosity, mechanical properties and microstructure of the alumina ceramics produced in addition to the effectiveness of the techniques and methods applied.
Complicaciones de la hernioplastia inguinal laparoscópica
Authors: Calle Reinoso Marilyn Estefany , Vera Pulla Raúl David , Calle Reinoso Jonnathan René
Published: June 2023

Las hernias que se ubican en la pared abdominal son consideradas una patología de alta prevalencia en la población mundial, ya que se estima que el 55 % de las personas se ve afectada en algún momento de su vida por esta enfermedad. Además, se someten anualmente más de 20 millones de pacientes a nivel mundial a reparación de hernia inguinal, como gran parte de estos pacientes presentan comorbilidades, es importante conocer las complicaciones que conlleva este procedimiento. Objetivo. Identificar estrategias para reducir la incidencia de complicaciones y mejorar los resultados a largo plazo de la hernioplastia inguinal laparoscópica. Metodología. Se realizó una revisión sistemática, de estudios observacionales, donde las principales bases de datos utilizados fueron PubMed y Google Scholar cuyos descriptores DeCS-MeSH se presentan con el siguiente algoritmo de búsqueda “Complications” AND “laparoscopic” AND “inguinal” AND “hernioplasty”. Se incluyeron los trabajos relacionados con el tema de investigación, publicados en español o inglés en periodos más recientes o publicados dentro de los últimos 5 años. Conclusión. La incidencia de hernias inguinales aumenta con la edad, especialmente entre la quinta y la séptima década de la vida por lo cual conlleva a complicaciones que van desde morbilidad de la herida, recurrencia de la hernia, dolor crónico y problemas relacionados con la malla. A pesar de las complicaciones que presenta la reparación de hernia inguinal vía laparoscópica es una de las técnicas más usada actualmente y que brinda una recuperación más rápida.
Terapia nutricional enteral y parenteral en pacientes con diagnóstico de COVID-19 en UCI
Authors: Yuquilima Campoverde María Elizabeth , Yánez Castro Jorge Luis , Yuquilima Campoverde Víctor Xavier
Published: June 2023

Se evidencia una gran cifra de casos de enfermedad por el contagio de COVID-19, llamando la atención la desnutrición que está asociada directamente con la exposición y estancia prolongada en Unidad de Cuidados Intensivos, desencadenando a su paso un síndrome de mala alimentación o desnutrición por Sarcopenia. Objetivo. Detallar los beneficios de la nutrición enteral y parenteral en un cuadro de desnutrición en pacientes críticos con diagnóstico de COVID-19 en la Unidad de Cuidados Intensivos, rescatando los beneficios en la evolución clínica del paciente en términos de mortalidad y estancia hospitalaria. Metodología. Se realizó un estudio de revisión sistemática sobre la nutrición enteral y parenteral en pacientes críticos con diagnóstico de COVID-19, con enfoque de búsqueda de información en la base de datos como: PubMed, Lilacs, Scielo, Scopus, Web of Science. La búsqueda comprendió desde el periodo 2020-2022. Conclusión. Los pacientes en estado crítico por infecciones de COVID-19 están ligados a un estado grave de inflamación que se asocian con una serie de procesos miopáticos agudos, precoces y agresivos que desencadenan un mayor consumo calórico- proteico, menor tolerancia a la terapia nutricional y por ende a la pérdida muscular. Se determinó con esta investigación que la nutrición enteral y parenteral en pacientes críticos con diagnóstico de COVID-19 desencadenan diversos beneficios de carácter clínico al mejorar la ingesta nutricional, menor infección nosocomial, menor mortalidad en unidad de cuidados intensivos y predisposición a la mejora funcional disminuyendo la estancia hospitalaria y mejorando la evolución clínica del paciente.
Ambliopía no estrábica: revisión sistemática en Hispanoamérica, prevalencia de casos clínicos
Authors: Saad Mariam , Rodríguez Selma
Published: June 2023

La ambliopía es una de las alteraciones que causa mayor impacto y es frecuente en la pérdida de agudeza visual, principalmente en los niños; su prevalencia varía entre 2% y 7%. Por otro lado, es la primera causa de afectación en la visión de adultos. Objetivo. Analizar la prevalencia de la ambliopía no estrábica en distintos grupos etarios en Hispanoamérica. Metodología. Se realizó una revisión sistemática de estudios realizados dentro del período 2014 al 2021 en las bases de datos como: Redalyc, Scielo, Medilib, Dialnet y Google Académico. Se presenta el análisis de cinco estudios relevantes en Colombia, Ecuador, Nicaragua, Chile y Cuba. Conclusión. En el estudio de Cuba, se encontró ambliopía en el 1.39%; en Colombia, el 8.10%; en Ecuador, el 5.30%; en Nicaragua el 2.9%; en Chile la incidencia fue del 2.41%, 2.55% y 3.51%, respectivamente para los grupos etarios de 18-38 años, 39-59 años y 60-79 años. Así Colombia es el país en el que se halló la mayor incidencia de ambliopía (8.10%), y Cuba el menor con el 1.39%. Además, la ambliopía refractiva es la más común en los estudios y en cuanto al género, no existen diferencias. Los estudios sobre ambliopía no estrábica son escasos a nivel regional o mundial sobre este tema, por lo que el presente análisis es relevante en esta área de conocimiento. Además, la información presentada aporta a visibilizar la necesidad de promover la realización de exámenes que permitan un diagnóstico y tratamiento adecuados y oportunos.
Discapacidad física, una valoración bajo dos perspectivas para la inserción laboral en Perú
Authors: Bustinza Vargas Juana Victoria , Lacuta Sapacayo Lourdes
Published: June 2023

Las normativas legales peruanas como es la Ley 29973, busca la promoción, protección de las personas con discapacidad en el ámbito laboral logrando así el desarrollo, igualdad e inclusión social, política que actualmente aplicado en las instituciones públicas ni privadas en Perú. Objetivo. Analizar la influencia de la discapacidad física en la inserción laboral en Perú. Materiales y Métodos. La metodología que se utilizó estuvo enmarcada en el enfoque cuantitativo, el tipo de investigación fue básica causal explicativo, el método hipotético deductivo, el diseño de la investigación fue no experimental de corte transeccional. La población fue de 61 usuarios, la técnica utilizada para la recolección de datos fue la encuesta y como instrumento el cuestionario, los datos se analizaron mediante el software estadístico SPSS. El procesamiento estadístico fue no paramétrico de Chi-Cuadrada. Resultados. Como resultado de la investigación fue que el 31,1% de los usuarios manifestaron que no están insertados en el mercado laboral ya que la discapacidad física que poseen es de tipo paraplejia, es decir, que, ambas piernas carecen de movilidad lo cual es una restricción para su desarrollo y dificulta su integración en el mercado laboral. Conclusiones. La discapacidad influye significativamente en la inserción laboral de los usuarios de la Oficina Municipal de Atención a las Personas con Discapacidad.
Analisis Kualitas Pelayanan Instalasi Gawat Darurat (IGD) dan Rawat Inap (Kelas III) di Rumah Sakit Umum Daerah (RSUD) Dr. Tengku Mansyur Kota Tanjungbalai
Authors: B Mahyaruddin Salim , Isnaini Isnaini , Adam Adam
Published: June 2023

This research is motivated by the quality of public services that have not been implemented properly, causing poor public service delivery which is a necessity for the government to make improvements in public services, one of which is the number of facilities that must be renovated and the lack of human resources at the Regional General Hospital (RSUD). Dr. Tengku Mansyur Tanjung City Hall. The purpose of this study is to determine the quality of services for the Emergency Room (IGD) and Inpatient Care (Class III) at the Regional General Hospital (RSUD) Dr. Tengku Mansyur Tanjungbalai City and to find out what factors are inhibiting the Emergency Installation (IGD) and Inpatient (Class III) Services at the Regional General Hospital (RSUD) Dr. Tengku Mansyur Tanjungbalai City. The research method uses a qualitative approach with a descriptive type. The results of this study indicate that based on PERMENPAN No. 19 of 2021 has gone well, this is because the five points in PERMENPAN such as types of services, service procedures, turnaround times, service fees and facilities and infrastructure have gone well. Then not only that there are inhibiting factors such as the need for additional human resources (HR) and improvement of hospital facilities that have not been maximized at the Regional General Hospital (RSUD) Dr. Tengku Mansyur Tanjungbalai City.
Pengaruh Word of Mouth dan Kepuasan Pelanggan Terhadap Keputusan Pembelian Pakaian Wanita Pada Remaja Akhir
Authors: Lubis Suaidah , Yulita Devi Eka , Andrian Muhammad Syahreza , Nisa Khairun
Published: June 2023

The purpose of this study was to determine the effect of word of mouth and customer satisfaction on purchasing decisions. This type of research is quantitative. The population in this study was 222, the research sample was 143 first semester students, the sample was determined using purposive sampling. The data collection instrument used the g-form and was analyzed using SPSS version 20. Data analysis techniques used normality, linearity, multicollinearity, and heteroscedasticity tests. Test the hypothesis using multiple linear regression and T test. Based on the research findings, there is an F count of 113.200 and F table of 3.06. Then F count of 113.200 > 3.06 F table means that Ho is rejected and Ha is accepted. If you see the value of Sig. 0.000 <0.05 then the hypothesis is accepted or in other words there is the influence of word of mouth and consumer satisfaction on purchasing decisions. word of mouth variable (X1) and customer satisfaction variable (X2) simultaneously influence the purchase decision variable (Y) by 61.8%. This research can be developed by linking other variables outside of this research variable.
Efforts to Reform State Civil Apparatus Management in the Face of Globalization
Authors: Simamora Beltahmamero
Published: June 2023

Currently, Indonesia's institutional structure is overweight with 34 ministries, 28 non-ministerial government institutions, and around 69 non-structural institutions with overlapping authority, indicating the complexity of government fragmentation in Indonesia. Globalization will intervene more in the field of government institutional restructuring when Indonesia's institutional situation is too hierarchical, fragmented, and over-procedural. This paper aims to discuss the importance of ASN management and how the government steps to actualize public values in ASN reform. This research uses a qualitative approach, which describes the efforts to reform ASN management in the face of globalization. The data collection technique used in this research is a literature study by collecting materials from books, journals, by describing the data through several experts' opinions. This paper proposes a recommendation that institutional downsizing is a logical consequence of the fragmented condition of Indonesian government institutions, the president should dare to reorganize the power structure in order to save the cost of governance. The quality of ASN in the face of globalization should be strengthened by recruiting younger employees who understand the dynamics of technological development, and educating ASN personnel by conducting special trainings in responding to globalization as a challenge that must be faced.
Implementasi Kebijakan Pelayanan 24/7 dalam Meningkatkan Pelayanan Pengguna Jasa pada Kantor Pengawasan dan Pelayanan Bea dan Cukai Tipe Madya Pabean Belawan
Authors: Sinaga Darwin Martua , Hartono Budi , Budiani Ina Triesna
Published: June 2023

The issuance of Minister of Finance Decree Number 504/PMK.04/2009 on 24-Hour Customs Service and 7-Day Customs Office at Certain Ports accommodates customs services to facilitate importers or exporters in submitting customs documents in order to obtain service certainty so that imported or exported goods can be served. However, some obstacles related to 24/7 services were found which may cause user satisfaction to be less than optimal. This study aims to determine the implementation of the 24/7 Service Policy and the factors affecting its implementation at the Belawan Customs and Excise Supervision and Service Office in North Sumatra. The method used is descriptive qualitative with data collection conducted through observation, interviews, and documentation. The data analysis techniques used are data collection, data reduction, data presentation, and conclusion drawing. Based on the results of the study, it is known that the implementation of the 24/7 Service Policy in improving user services at the Belawan Customs and Excise Supervision and Service Office, North Sumatra, still needs improvement due to communication, resources, and bureaucratic structure that have not been running well, influenced by factors such as Standard Operating Procedures (SOP), widespread fragmentation, limited socialization, and officer competence. Meanwhile, the implementation is supported by disposition influenced by factors such as facilities, authority, and performance contracts.
Implementasi Kebijakan Peraturan Pemerintah Nomor 11 Tahun 2017 Berbasis Paperless pada Badan Kepegawaian Daerah dan Pengembangan Sumber Daya Manusia Kota Medan
Authors: Rahayu Febrita , Hartono Budi , Lubis Maksum Syahri
Published: June 2023

The purpose of this research is to analyze the implementation and identify the driving and inhibiting factors of the implementation of Government Regulation Number 11 of 2017 on Paperless Civil Servant Rank Promotion Services at the Regional Personnel Agency and Human Resource Development of Medan City by applying Edward III's theory. This study used a descriptive qualitative approach with data collection techniques of observation, interviews, and documentation. The data analysis technique used in this study consisted of four stages: data collection, data reduction, data presentation, and conclusion drawing. The results of the study showed that the implementation of Government Regulation Number 11 of 2017 on Paperless Civil Servant Rank Promotion Services at the Regional Personnel Agency and Human Resource Development of Medan City is still not optimal due to (1) the suboptimal application of service-oriented work culture values, (2) the low interest of civil servants in applying for rank promotion during the COVID-19 pandemic, and (3) the development of the personnel information system is not fully capable of producing accurate information. The Regional Personnel Agency and Human Resource Development of Medan City is trying to run paperless rank promotion services by optimizing the SAPK and SIASN systems so that employee data is integrated for effective and efficient services in the future.
Efektivitas Penerapan Pendekatan Keadilan Restoratif Dalam Penyelesaian Perkara Pidana Dengan Korban Anak Pada Wilayah Hukum Kepolisian Resor Sibolga
Authors: Yusuf Muhammad , Zulyadi Rizkan , Isnaini Isnaini
Published: June 2023

Permasalahan dalam penelitian ini adalah urgensi penerapan keadilan restoratif di Lembaga Kepolisian, penerapan pendekatan keadilan restoratif dengan korban anak dan efektivitas penerapannya di Kepolisian Resor Sibolga. Metode penelitian dalam penulisan ini adalah metode normatif dengan dukungan data empiris dan bersifat deskriptif analisis. Berdasarkan hasil penelitian ini diantaranya, urgensitas Lembaga Kepolisian RI menerapkan keadilan restoratif yaitu untuk menguatkan kedudukan Lembaga Kepolisian Republik Indonesia, mengatasi dinamika penegakan hukum pidana di Indonesia yang terkesan membebani negara, memenuhi suatu kebutuhan hukum masyarakat Indonesia yang sesuai dengan nilai-nilai yang hidup dalam masyarakat Indonesia. Pelaksanaan pendekatan keadilan restoratif  pada Lembaga Kepolisian Republik Indonesia didasarkan pada Perpol Nomor 8 Tahun 2021 serta Pasal 12 Perkap Polri Nomor 6 Tahun 2019. Dalam penanganan perkara tindak pidana dengan korban anak melalui pendekatan di Kepolisian Resor Sibolga telah dilakukan sebanyak 2 (dua) kali pada tahap penyidikan dengan mengeluarkan surat perintah penghentian penyidikan (SP3). Penerapan pendekatan keadilan restoratif dengan korban anak di wilayah hukum Kepolisian Resor Sibolga dapat dikatakan belum efektif dikarenakan faktor hukum, penegak hukum, sarana dan prasarana, masyarakat, serta kebudayaan.
Implementasi Kebijakan Peraturan Bupati Nomor 23 Tahun 2021 Tentang Penerimaan Peserta Didik Baru pada SD Negeri 104231 Batang Kuis Kabupaten Deli Serdang di Era Pandemi Covid-19
Authors: Sutomo Iwan , Siregar Nina Siti Salmaniah , Hartono Budi
Published: June 2023

This study employs a qualitative approach with a case study as the research design. The focus of the case study is on how SDN 104231 Batang Kuis handles the Admission of New Students in the midst of the Covid-19 outbreak after the issuance of Regent Regulation No. 23 of 2021. Data collection is conducted through interviews, observations, and documentation. The findings indicate that 1) preparation for this policy is carried out through understanding, learning, and preparing implementation strategies in accordance with supporting factors, such as selecting a competent committee for Admission of New Students and implementing staff who are willing to learn from changes; 2) policy implementation has been carried out in accordance with existing policies and has become a new point for having a better system for Admission of New Students and services by integrating offline and online systems in the educational environment; and 3) there are supporting and inhibiting factors, such as the simplification of Admission of New Students activities and students being able to participate in online competitions, but also negative impacts, such as a decrease in parents' interest in enrolling their children in public elementary schools since the Covid-19 pandemic and the need for the development of infrastructure used.