Miracle-dz/UniFAR-FTUs huggingface dataset:
A Compact Planar Four-port MIMO Antenna for 28/38 GHz Millimeter-wave 5G Applications

This article presents a planar four-port microstrip line-fed Multiple-Input Multiple-Output (MIMO) antenna operating at 5G millimeter-wave candidate bands of 28 GHz and 38 GHz. A rectangular-shaped patch antenna is designed as a main radiator to obtain a resonance at 28 GHz. Etching of a single-element split-ring resonator (SRR) metamaterial unit cell from the basic patch radiator introduces an additional resonance band at 38 GHz. The suggested MIMO antenna is built on Rogers RT5880 substrate material with a dimension of 14 mm × 14 mm, a thickness of 0.8 mm, and a relative permittivity of 2.2. The measured results show that the antenna achieves bandwidths of 26.6-29 GHz and 37.3-39.3 GHz, whereas greater than 25 dB of port isolation between antenna elements over both bands is obtained without applying any complex decoupling structure. The antenna’s equivalent circuit diagram is presented with the help of lumped elements to characterize its electrical responses. The investigated diversity performance parameters, which result in an envelope correlation coefficient below 0.005, diversity gain of almost 10 dB, and channel capacity loss of less than 0.35 bits/s/Hz, are all found within their conventional limits. The findings show the viability of the design for millimeter-wave 5G applications.
Local Breast Microbiota: A “New” Player on the Block

Simple Summary Microbiota plays a fundamental role in the induction, training and function of the human immune system. The interactions between microbiota and immune cells have consequences in several settings, namely in carcinogenesis but also in anticancer activity. Immunotherapy, already widely used in the treatment of several solid cancers, modulates the action of the immune system, promoting antitumour effects. Recently, there has been a growing interest in studying the microbiota composition as a possible modulator of the tumour microenvironment and consequently of the response to certain therapies such as immunotherapy. Abstract The tumour microenvironment (TME) comprises a complex ecosystem of different cell types, including immune cells, cells of the vasculature and lymphatic system, cancer-associated fibroblasts, pericytes, and adipocytes. Cancer proliferation, invasion, metastasis, drug resistance and immune escape are all influenced by the dynamic interaction between cancer cells and TME. Microbes, such as bacteria, fungi, viruses, archaea and protists, found within tumour tissues, constitute the intratumour microbiota, which is tumour type-specific and distinct among patients with different clinical outcomes. Growing evidence reveals a significant relevance of local microbiota in the colon, liver, breast, lung, oral cavity and pancreas carcinogenesis. Moreover, there is a growing interest in the tumour immune microenvironment (TIME) pointed out in several cross-sectional studies on the correlation between microbiota and TME. It is now known that microorganisms have the capacity to change the density and function of anticancer and suppressive immune cells, enabling the promotion of an inflammatory environment. As immunotherapy (such as immune checkpoint inhibitors) is becoming a promising therapy using TIME as a therapeutic target, the analysis and comprehension of local microbiota and its modulating strategies can help improve cancer treatments.
Preparation of transparent alumina thin films deposited by RF magnetron sputtering

Alumina (Al2O3) thin films were prepared by RF magnetron sputtering technique using Al2O3 ceramic target. Effects of sputtering powers and oxygen gas mixtures were investigated and the optimized coating condition was applied on semi-precious gemstones. RF sputtering powers were varied to optimize the transparency of the films. Besides, the oxygen gas mixtures were also studied at the optimized sputtering power with a constant sputtering pressure. Optical and physical properties of the thin films were investigated using UV-Vis Spectrophotometer, FESEM, XRF, GIXRD, XRR including a microscratch tester. The Al2O3 films were highly transparent in the visible region in form of an amorphous phase with granular structure of the surface morphology. Thickness of the films decreased significantly with an introduction of the oxygen gas in the sputtering process but slowly decreased with further addition of the oxygen gas. Density of the film changed linearly with the variation of the oxygen gas mixtures. The semi-precious gemstones gained higher scratch resistance after the Al2O3 thin films coating. To enhance the scratch resistance and maintain the aesthetic appearance of the semi-precious gemstones, the most optimum deposition condition for the Al2O3 thin film coating was determined for the RF magnetron sputtering technique at room temperature.
Evaluation of the Moisture Transfer Property of Waterproof Breathable Fabric Under Low-Temperature Conditions Depending on the Pore Size and Distribution

The moisture transfer properties of four types of waterproof breathable fabrics with different pore sizes and distributions under low temperatures were examined. The structure, thickness, and pore shape of the fabric by scanning electron microscopy and capillary flow porometer compared depending on the manufacturing method. The effects of these parameters on the wearing comfort as determined by water vapor transmission rate and analyzing the temperature/humidity changes in the microclimate using the human–clothing–environment simulator. The coating type membrane was the thickest, whereas the nano web specimen was the thinnest. The results showed that at subzero temperatures, there was little difference in the vapor pressure change of the microclimate depending on the pore size. In the case of the waterproof breathable fabric produced in various forms depending on the function, however, the evaluation should performed based on the actual clothing wearing conditions, rather than in the standard state, is needed.
Impaired wound healing is associated with poorer mood and reduced perceived immune fitness during the COVID‐19 pandemic: A retrospective survey

The coronavirus disease‐2019 (COVID‐19) pandemic disrupted medical care of patients with chronic wounds, and in combination with other negative effects of lockdown measures, this may have a negative effect on mood and quality of life. Until now, the consequences of the COVID‐19 pandemic and associated lockdowns for individuals with impaired wound healing have not been investigated.
Population Dynamics of Fall Army Worm Spodoptera Frugiperda (J E Smith) on Maize

Population dynamics of the fall army worm (FAW) Spodoptera frugiperdaon maize was carried out at the research field of Tamil Nadu Agricultural University, Coimbatore (kharif and rabi, 2018 and 2019). The results revealed that maximum FAW trap catches were obtained during 34th(7.6 moths/ trap) and 5th(7.8 moths/ trap) standard weeks (SW) of kharif and rabi seasons of 2018, respectively. During 2019, a more or less similar trend was observed with a maximum during 31st(7.2 moth/ trap) and 48th (8.2 moth/ trap) SW of kharif and rabi seasons, respectively. Correlation with weather factors indicated a significant negative correlation with evening relative humidity (RH) and significant positive correlation with morning RH during 2019-20. No significant effect of weather factors was observed during 2018-19 except for a significant positive correlation with evening RH and rainfall. The correlation between larval counts and pheromone trap catches were significantly positive with r-value of 0.55 and an R2value of 0.907 during 2018-19.
One-Year Clinical Outcomes Following Electroconvulsive Therapy for Patients with Schizophrenia: A Nationwide Health Insurance Data-Based Study

Background Although the use of electroconvulsive therapy (ECT) in the treatment of schizophrenia has decreased since the advent of antipsychotic drugs, ECT is still implemented in several clinical indications. However, a few population-based studies have examined its real-world effectiveness in schizophrenia. Methods We used data from 2010 to 2019 from the Health Insurance Review and Assessment Service database in the Republic of Korea. We selected 380 schizophrenia patients having more than six ECT sessions and 1140 patient controls matched for age, sex, calendar year at entry, and the number of psychiatric hospitalizations before the time point of start of psychiatric hospitalization for ECT. Antipsychotic treatment discontinuation, psychiatric hospitalization, and direct medical costs were used as measures of clinical outcomes. Multiple regression analysis was used for any group-by-time interaction effect, and 1-year pre- and post-ECT periods were compared within and between the groups. Results We found a significantly lower number of antipsychotic treatment discontinuations in the ECT group during the 1-year post-ECT period (t=2.195, p=0.028). A larger decrease was found in the number of psychiatric hospitalizations in the ECT group, with a group-by-time interaction effect (p=0.043). The direct medical costs in the 1-year pre- (t=−8.782, p<0.001) and post-ECT periods (t=−9.107, p<0.001) were higher in the ECT group than in the control group, with no significant change across both periods. Conclusion We found that the ECT group had a larger decrease in the number of psychiatric hospitalizations in the 1-year post-ECT period than the control group.
Evaluation of Elephant Grass (<i>Pennisetum purpureum</i> L) Accessions for Their Agronomic Performances in Lowland Areas of Guji Zone, Southern Oromia, Ethiopia

: The study was conducted with the objectives to identify and select better adaptable, higher herbage yielding forage variety. Six elephant grass accessions (ILRI # 16791, ILRI # 16798, ILRI # 16840, ILRI # 16800, ILRI # 16819 and ILRI # 15743) were arranged in randomized complete block design (RCBD) with three replications. All agronomic parameters and biomass yield of forage samples were determined and collected data were examined using statistical analysis. The result revealed that the agronomic performance of plot cover, plant vigor, leaf to stem ratio, leaf length and plant height were not show significant difference (P>0.05) between elephant accession. The result revealed that survive rate, number of leaf per plants, number of tiller per plants and number of node per plants were highly significantly (P<0.001) differ among the treatments. The result revealed that dry matter yield and number of plant regenerate were shown that significant (P<0.05) among the treatments. The highest value of dry matter yield was measured from ILRI # 16791 (12.11 t/ha) accession. The highest survive rate (88.8%) was measured from ILRI # 16791 accession, followed by (75.5%) ILRI # 16819 accession. The result implies that ILRI # 16819 and ILRI # 16791 were well performed in agronomic parameters. Thus it could be possible to conclude that the elephant grass should be recommended for improving the constraint of feed shortage in lowland agro-ecologies of Guji zone and similar areas.
Influence of Varied Load Assistance with Exoskeleton-Type Robotic Device on Gait Rehabilitation in Healthy Adult Men

This study aimed to clarify how the power-assist function of the hybrid assistive limb (HAL®), an exoskeleton-type gait-assist device, affected the gait characteristics of patients who wear it, specifically focusing on the “misalignment” of the robot joints and landmarks with the corresponding body parts. Five healthy adult men were video-recorded wearing the HAL® as they walked normally on a treadmill under seven conditions corresponding to the strengths and sites of robotic power assistance. For kinematic analysis, reflective markers were attached to the HAL® and the wearer at key locations, and participants were recorded walking past a set of four video cameras for each condition. A motion analysis system was used for analysis. The walking motion was segmented into eight-phase gait cycles. Knee misalignment, or the relative offset in position of the HAL®/wearer knee joints, was calculated from kinematic data and joint angles. These values were compared with respect to two factors: assist level and gait phase. Statistical analysis consisted of parametric and nonparametric tests for comparing the values of misalignment of each gait phase, followed by multiple comparisons to confirm significant differences. The results showed that the knee misalignment was greatest in the pre-swing phase and was significantly lower overall in conditions with high levels of power assistance. The result of greater knee misalignment in the pre-swing phase may be attributed to the structural properties of the HAL® lower-limb exoskeleton. This provides valuable insight regarding the walking stages that should be given special attention during the evaluation of synchrony between exoskeleton-type gait-assist robots and their wearers.
Solid-State Modulator for Generating High Voltage Pulses in the ms-Range with High Output Power

Novel basic research, which will be carried out with the help of particle accelerator experiments at the new European Spallation Source (ESS) in Sweden, requires high-frequency amplifiers (klystrons), which are excited by high-precision high-voltage pulses. These highly accurate voltage pulses are generated by means of so-called long-pulse modulators. The aim of this thesis is to investigate novel modular long pulse sources with a focus on an easily expandable and compact design with the highest possible efficiency. The proposed pulse source has to generate a voltage pulse with a pulse voltage amplitude of 115 kV with a repetition rate of 14 Hz and a pulse power of 2.88 MW during a pulse length of 3.5 ms. With existing modulator topologies all the demanding requirements like a fast pulse rise time, a low voltage ripple and a long pulse length can hardly be satisfied at the same time in a compact way. For example, conventional concepts which are employing pulse transformers become huge for long pulses since the volt-seconds product of the pulse is high. Therefore, the proposed modulator concept is based on a series parallel resonant converter (SPRC) topology, which avoids this drawback as the transformer is operated at high frequencies. This modular topology employs SPRC base modules (SPRC-Bms), which are connected in series to gain the given output voltage and are connected in parallel to deliver the output power. The single SPRC-Bm consists of a H-bridge, a resonant tank, a high-voltage high-frequency transformer and an output rectifier. In order to derive the highest efficiency along with a compact modulator system size, as well as to fulfill the demanding pulse specifications, an optimization procedure has been developed. This procedure contains a detailed electrical model of the resonant circuit and a thermal model of the semiconductors for an optimal number of semiconductors. Since one major key component of the modulator is the design of the high-frequency high-voltage transformers, the optimization procedure also includes a generalized calculation method for the leakage, the parasitic capacitance and all high frequency losses of the transformer. To ensure a long lifetime of the transformer, a com-
Childhood obesity diagnosis and management remains a challenge despite the use of electronic health records: A retrospective study

The use of electronic health records (EHR) has revolutionized medical practice by improving the quality of care. Childhood obesity (CO) increases the risk of developing other chronic diseases and has a serious psychosocial impact on children. Using EHR may improve this clinical condition since early diagnosis is a crucial means of preventing its negative impacts.
Green Space Based Learning Model for Repurposing Underutilized Green Spaces within School Campuses.

The Green Space Based Learning (GSBL) is an educational model to mainstream green infrastructure within urban environments that builds on a long-term partnership between a Research I university, surrounding underserved community, and local school district with a portion being piloted through a federally funded Research Experience for Teachers (RET) program. The RET program provides an opportunity for graduate students and professors to share their field of knowledge with teacher participants in two intensive 6-week summer research experiences. This content knowledge is then translated by the participating teachers into grade specific lessons that support the development of interactive and sustainable green spaces within their school campus. Stakeholder groups participate in academic year components, bringing their expertise into the K-12 classroom. Ultimately, K-12 students are guided through the design/build of a green infrastructure improvement project, transforming an underutilized green space within their school campuses into a multi-use educational environment. Phenomenological based interviewing methods allowed RET participants to reflect on their experience and provide feedback on the impact that the GSBL had on them, their teaching, and their community. Participating teachers expressed improved pedagogical practices through their experience in the GSBL model across several thematic groups, including authentic research experience, contextualized learning, teacher’s contribution to research, practical applications to classroom, professional development, and green infrastructure awareness.
Perceived Ease of Use as a Precursor of Mobile Payment E-Wallet

Intention to use mobile payment is a goal that needs to be achieved in the study of the adoption of online behavior. There are several other behaviors that can support the perceived ease of use and the relative advantage of mobile payments. Examining the phenomenon of mobile payment, the purpose of this study is to investigate the relationship between perceived ease of use, relative advantage, and intention of use from mobile payment users. This research was conducted through a quantitative survey with online questionnaires. There were 290 respondents whose data were processed in this study, and the respondents were mobile payment e-wallet users in the city of Bandung. Data from respondents was processed through SmartPLS by testing the Inner and Outer Models to test the research hypotheses. The results of the study found that perceived ease of use had a positive relationship with relative advantage. Furthermore, it is known that the relative advantage of mobile payment e-wallet has a positive relationship with intention to use. Meanwhile, there is a direct positive relationship between perceived ease of use and intention to use. The findings of the study indicate that there is an online behavior model related to the intention to use mobile payment. The information in this study is useful for mobile payment service providers in Indonesia to understand the online language, so that mobile payment services, especially e-wallets can be improved.
miR3633a-GA3ox2 Module Conducts Grape Seed-Embryo Abortion in Response to Gibberellin

Seedlessness is one of the important quality and economic traits favored by grapevine consumers, which are mainly affected by phytohormones, especially gibberellin (GA). GA is widely utilized in seedless berry production and could effectively induce grape seed embryo abortion. However, the molecular mechanism underlying this process, like the role of RNA silencing in the biosynthesis pathway of GA remains elusive. Here, Gibberellin 3-β dioxygenase2 (GA3ox2) as the last key enzyme in GA biosynthesis was predicated as a potential target gene for miR3633a, and two of them were identified as a GA response in grape berries. We also analyzed the promoter regions of genes encoding GA biosynthesis and found the hormone-responsive elements to regulate grape growth and development. The cleavage interaction between VvmiR3633a and VvGA3ox2 was validated by RLM-RACE and the transient co-transformation technique in tobacco in vivo. Interestingly, during GA-induced grape seed embryo abortion, exogenous GA promoted the expression of VvmiR3633a, thereby mainly repressing the level of VvGA3ox2 in seed embryos. We also observed a negative correlation between down-regulated VvGA20ox2/VvGA3ox2 and up-regulated VvGA2ox3/VvGA2ox1, of which GA inactivation was greater than GA synthesis, inhibited active GA content, accompanied by the reduction of VvSOD and VvCAT expression levels and enzymatic activities. These series of changes might be the main causes of grape seed embryo abortion. In conclusion, we have preliminarily drawn a schematic mode of GA-mediated VvmiR3633a and related genes regulatory network during grape seed abortion induced by exogenous GA. Our findings provide novel insights into the GA-responsive roles of the VvmiR3633a-VvGA3ox2 module in the modulation of grape seed-embryo abortion, which has implications for the molecular breeding of high-quality seedless grape berries.
Artificial intelligence in healthcare: Proposals for policy development in South Africa

Despite the tremendous promise offered by artificial intelligence (AI) for healthcare in South Africa, existing policy frameworks are inadequate for encouraging innovation in this field. Practical, concrete and solution-driven policy recommendations are needed to encourage the creation and use of AI systems. This article considers five distinct problematic issues which call for policy development: (i) outdated legislation; (ii) data and algorithmic bias; (iii) the impact on the healthcare workforce; (iv) the imposition of liability dilemma; and (v) a lack of innovation and development of AI systems for healthcare in South Africa. The adoption of a national policy framework that addresses these issues directly is imperative to ensure the uptake of AI development and deployment for healthcare in a safe, responsible and regulated manner.
Prenatal Buprenorphine/Naloxone or Methadone Use on Neonatal Outcomes in Michigan

Background Maternal opioid exposure during pregnancy has various effects on neonatal health. Buprenorphine/naloxone and methadone are examples of medications for opioid use disorder (MOUD) used for the treatment of opioid use disorder (OUD). Research comparing the impacts of these MOUD modalities on neonatal outcomes when used to treat pregnant people with OUD remains limited. We evaluated the differences in outcomes between neonates with in-utero exposure to buprenorphine/naloxone versus methadone. Methodology We performed a retrospective cohort chart review between October 15, 2008, and October 15, 2019, evaluating mother/neonate dyads at two medical centers in Michigan. The charts of female patients, aged 18+, with OUD and buprenorphine/naloxone or methadone treatment, were examined. The charts of the corresponding neonates were also examined. Multiple regression analysis was performed. Results In total, 343 mother/infant dyads were included: 99 patients were treated with buprenorphine/naloxone and 232 patients were treated with methadone. The buprenorphine/naloxone group had significant differences in maternal age, hepatitis status, asthma, gestational age in weeks, neonatal intensive care unit (NICU) length of stay (LOS), neonatal opioid withdrawal syndrome (NOWS) peak score, birth head circumference, and birth weight compared to the methadone group at baseline. Adjusted multivariable regression analysis demonstrated neonates with exposure to buprenorphine/naloxone had a NOWS peak score 3.079 points less (95% confidence interval (CI): -4.525, 1.633; p = 0.001) and NICU LOS 8.955 days less (95% CI: -14.399, -3.511; p = 0.001) than neonates exposed to methadone. Conclusions Neonates with in-utero exposure to buprenorphine/naloxone had significantly lower NOWS scores and shorter NICU LOS compared to neonates with in-utero exposure to methadone. These findings demonstrate that buprenorphine/naloxone is potentially a more favorable treatment for the reduction in metrics representing adverse neonatal outcomes in pregnant people with OUD than methadone.