bluuebunny/crossref_metadata_2025_split huggingface dataset:
Wideband Single-Fed Circularly Polarized Stacked Patch Antenna With L-Shaped Stub
Authors: Li Wen , Xue Wei , Li Yingsong , Xiong Xiang , Chung Kwok L. , Huang Zhixiang 
Published: May 2023

A wideband single-fed circularly polarized (CP) stacked patch antenna with an L-shaped stub is presented. The CP antenna is made up of the bottom gradient microstrip transmission line, middle driven patch and top square radiation patch. The driven patch with an L-shaped stub and opening slot can achieve a wideband CP radiation which is different from a conventional patch. The presented CP stacked patch antenna maintains good directional radiation, while featuring wideband CP radiation. The final tested results indicate that the presented CP antenna has significant performance with a −10 -dB impedance bandwidth of 42.1% (4.26-6.53 GHz), a 3-dB AR bandwidth of 26.0% (4.36-5.66 GHz) and broadside peak gain of 8.6 dBic. Moreover, the fifth-generation (5G) N79 band (4.4-5.0 GHz) and 5G wireless local area network (WLAN) band (5.15-5.35 GHz) can be covered by the operating bandwidth of the presented CPantenna.
A Circularly Polarized Patch Antenna Array with Reduced Mutual Coupling Using the Aperture-Loading Decoupling Technique
Authors: Cheng Xin , Qian Bingyi , Chang Le , Liu Jinlin , Chen Xiaoming 
Published: May 2023

An aperture-loaded decoupling strategy for 1 × 8 circularly polarized (CP) patch antenna array is presented in this article. By introducing an additional coupling path, the mutual coupling between adjacent antennas is cancelled. The result shows that more than 20-dB isolation enhancement is obtained by applying this strategy at the center frequency of 3.38 GHz. Mutual coupling between both adjacent and non-adjacent elements are suppressed to less than -25 dB. Moreover, the impedance bandwidth and axial ratio (AR) is also improved with decoupling. Compared with conventional CP antenna decoupling methods, the proposed approach has the characteristics of low profile, compact size, and low impact for the ground plane. It is shown that the AR bandwidth can be enhanced using the proposed decoupling method.
An Overview of Chemotherapy Side Effects on Patients with Prostate Cancer, Bladder Cancer, and Testicular Cancer at Haji Adam Malik General Hospital Medan from 2020-2022
Authors: Jesslyn Felicia 
Published: May 2023

Background: Chemotherapy is an alternative anticancer therapy. In general, side effects that will occur are hair loss, decreased appetite, weight loss, headache, fatigue, mouth ulcer, diarrhea, nausea and vomiting, constipation, nosebleed, skin rash, painful urination, muscle pain, and heartburn.Objective: To identify the most and least chemotherapy side effects in patients with prostate cancer, bladder cancer, and testicular cancer.Methods: The method used is descriptive quantitative with a total sampling technique. The study population was patients with prostate cancer, bladder cancer, and testicular cancer at Haji Adam Malik General Hospital Medan in 2020-2022, with a total of 38 people. Results: From the calculation of the frequency distribution, the sequence of side effects of prostate cancer chemotherapy was hair loss (94.1%), fatigue (88.2%), decreased appetite (76.5%), nausea and vomiting (70,6%), constipation (58.8%), muscle pain (47.1%), diarrhea (47.1%), weight loss (41.2%), skin rash (35.5%), painful urination (35.3%), headache (23.5%) %), mouth ulcer (23.5%), and heartburn (17.6%). Bladder cancer namely, fatigue (100%), decreased appetite (90.9%), nausea and vomiting (90.9%), muscle pain (63.6%), weight loss (63.6%), painful urination (54.5%), hair loss (45.4%), headache (45.4%), diarrhea (45.4%), constipation (45.4%), heartburn (36.4%), mouth ulcer (18.2%), and skin rash (18.2%). Testicular cancer namely, hair loss, decreased appetite, nausea and vomiting (100%), muscle pain (80%), weight loss (70%), fatigue (70%), heartburn (60%), mouth ulcer (50%), constipation (50%), headache (40%), skin rash (40%), painful urination (40%), and diarrhea (30%).Conclusion: Most to the least chemotherapy side effects are studied in patients with prostate cancer, bladder cancer, and testicular cancer. Keywords: Bladder Cancer, Chemotherapy, Prostate Cancer, Side Effects, Testicular Cancer
The Comparison of Clinical Characteristics of Acute Decompensated Heart Failure Patients between JCARE-CARD Japan and dr. Kariadi Hospital Registry
Authors: Sobirin Mochamad Ali , Yanto Kelly Kuswidi , Herry Yan , Rifqi Sodiqur , Tsutsui Hiroyuki 
Published: May 2023

Background: _Heart failure (HF) is a major public health problem due to the high prevalence, poor prognosis, and huge costs contributed by frequent hospital admissions and prolonged care. Clinical characteristics of patients with HF might differ among different regions and races and low socioeconomic status was associated with increased incidence of heart failure. Indonesia dan Japan are both Asian countries with different race and socioeconomic status. No previous study has examined the difference of clinical characteristics between Indonesia dan Japanese HF patients.Objective: To investigate HF patients demographic and clinical characteristics in Indonesia and compare with Japanese registryMethods: In this retrospective observational study, patients presenting with acute decompensated heart failure (ADHF) at dr. Kariadi Hospital (RSDK) were consecutively recruited during 2014-2015 hospitalization period. Baseline data including demographic, clinical characteristics, laboratory data on admission, medication use before hospitalization, and length of stay during hospitalization were collected from medical record using the form of the Japanese Cardiac Registry of Heart Failure in Cardiology (JCARE-CARD). The descriptive analysis was performed to compare those HF characteristics.Results: A total of 246 ADHF patients in RSDK registry were included with average age of responden was 56.4 years-old and 57.3% were male. Etiology was predominantly ischemic heart disease (IHD) in 60.6%, average left ventricular ejection fraction 40.1% and length of hospital stay was 8.8 days. Compared to Japanese registry, the characteristics of clinical status and laboratory data on admission were almost similar between studies except for higher prevalence of ischemic heart disease, renal dysfunction and dyslipidemia but lower prior stroke in RSDK study. The average length of stay at hospital was longer in Japanese registry (8.8 days vs. 33.9 days).Conclusion: Ischaemic heart disease and renal dysfunction more prevalent in RSDK registry, but prior stroke and length of stay at hospital higher in Japanese registry of hospitalized ADHF patients.
Effect of Tiger Shrimp Shell Extract (Penaeus monodon) on Monosodium Glutamate-Induced Mice
Authors: Saraswati Indah , Armalina Desy , Ayu Fadila Risang , Purnawati Ratna Damma 
Published: May 2023

Background: The shell is a part of the tiger shrimp (Penaeus monodon) body that often becomes waste and has not been utilized properly, but it contains secondary antioxidants that can prevent oxidative stress in the form of astaxanthin. Although several studies have examined the function of astaxanthin as an antioxidant, the role of it in tiger shrimp shells against hepar mice induced by monosodium glutamate (MSG) is not well knownObjective: to determine the effect of tiger shrimp shell extract in graded doses on the histopathological picture of hepatic mice induced by MSG.Methods: Extraction of tiger shrimp shell was carried out with palm head oil solvent and analyzed with Ultraviolet-Visible spectrophotometer (UV-Vis). This study used 25 male mice classified into 5 groups. One group was negative control without any need and 4 other groups were induced with MSG 0.84 g/kgBB. Three of the MSG-induced groups were induced with tiger shrimp shell extract at doses of 50 mg/kgBB, 100 mg/kgBB, and 200 mg/kgBB. The treatment was given for 35 days. Mice were terminated on the 42nd day and hepatic histopathology was observed with Manja Roenigk score.Results: The group induced with tiger shrimp shell extract in graded doses showed a better picture of hepatic histology structure compared to the group that was only induced with MSG. Statistical tests using the Kruskal Wallis test showed a significant difference between each group with a P value of 0.005.Conclusion: Feeding of tiger shrimp shell extract in graded doses can prevent hepatic damage to MSG-induced mice.
The Effects of TV Viewing, Computer and Gaming Console Use on Academic Achievement: A Longitudinal Study
Authors: Bui Nghi Hoang , Cruickshank Marilyn , McAloon John , Maguire Jane 
Published: May 2023

Background: Early learning experiences are crucial for children’s optimal development. The rising prevalence of screen time (ST) in children’s lives have raised concerns regarding their effect on academic outcomes (Gingold et al., 2013). Aim: This study used a longitudinal design to examine the effects of the amount of ST on academic achievement. Method and Sample: The “Growing Up in Australia: A Longitudinal Study in Australia (LSAC)” (Soloff et al., 2005) was the primary data source for this research and focused on children from this cohort who were 4-5 years of age on enrolment (N=2954). The National Assessment Program for Literacy and Numeracy (NAPLAN) was used to measure five academic domains: reading, writing, numeracy, spelling and grammar/punctuation at two time points. Results: Increased ST at Time 1 (T1) demonstrated a negative association with Year 3 NAPLAN scores in reading (B= -5.94), writing (B= -3.08), numeracy (B= -4.85), spelling (B= -4.03), and grammar/punctuation (B= -5.74). Increased ST at Time 2 (T2) demonstrated a significant negative association with only Year 5 NAPLAN scores in grammar/punctuation (B= -2.72). ST at T1 predicted lower scores on the Year 5 NAPLAN in reading (B= -1.67), writing (B= -2.36), and grammar/punctuation (B= -1.96). This effect was not observed for numeracy and spelling. Conclusions: Overall, these findings illustrate that more ST leads to a decreased performance in academic achievement over time, although this was not present across all domains. These findings may have implications for educational settings, as technology is increasingly utilised for educational purposes.
Studies on macrofungi diversity and discovery of new species of Abortiporus from Baotianman World Biosphere Reserve
Authors: Tie Lu , Lang Zhao , Deng Li , Junqiang Zhao 
Published: May 2023

Abstract
This research focuses on macrofungi in Baotianman Biosphere Reserve and their relationships with plant ecosystems. The findings demonstrate the reserve’s macrofungal resources. The study collected 832 specimens, among which 351 macrofungi species were identified, belonging to six classes, 19 orders, 54 familiae, and 124 genera, and one new species of Abortiporus was found. Among them, 11 familiae with a total of 231 species were dominated, accounting for 20.37% of the total number of familiae and 65.81% of the total number of species; 14 genera with a total of 147 species were dominated, accounting for about 11.38% the total number of genera and 41.88% of the total number of species. The richness of macrofungi at the species level was considerably different across the four vegetation types in the reserve, showing that the vegetation types had a bigger influence on macrofungi. In the evaluation of macrofungal resources, a total of 196 species of edible fungi, 121 species of medicinal fungi, 52 species of poisonous fungi, and 37 species of macrofungi with unclear economic value were counted. Abortiporus baotianmanensis is a new species of podoscyphaceae in the genus Abortiporus. The new species display the reserve’s richness. Next, the project seeks to generate and conserve macrofungal resources.
Effect of Heat Treatment on the Microstructure and Properties of an Electron Beam Cladded Layer of Inconel 718
Authors: Müller R. , Hengst P. , Biermann H. , Buchwalder A. 
Published: May 2023

Abstract
The present investigations serve to characterize Inconel 718 layers deposited onto a stainless steel by means of wire-based electron beam cladding. The investigations analyze the depth-dependent element concentration and the hardness profile, while providing a detailed microstructural examination. It is thus shown that multilayer coating systems can be applied without defects, and that the chemical composition of the additive material can be achieved in the third layer. Furthermore, the Fe content is shown to have a significant influence on the segregation of the Laves phase during solidification. The investigations also analyze the necessity of a subsequent solution annealing heat treatment step by means of hardness mapping and microstructural investigations. As a result, it is evident that solution annealing at 1050 °C reduces the amount of the Laves phase, but does not completely dissolve it. Additional age hardening tests with different T-t variants yield the desired hardness range. As a result, these variants offer a suitable possibility for in situ age hardening during boriding tests planned for future research.
Falls during oxaliplatin-based chemotherapy for gastrointestinal malignancies – (lessons learned from) a prospective study
Authors: Galliardt Melanie , Betz Ulrich , Birklein Frank , Drees Philipp , Geber Christian 
Published: May 2023

Abstract
This prospective cohort study aimed to characterise the impact of oxaliplatin-based chemotherapy and its neurotoxic side effects (i.e., chemotherapy-induced neuropathy) on functional fall-risk and falls. Twenty chemotherapy-naïve participants (mean age, 59 years; 16 males) were consecutively included. A multimodal fall risk assessment was performed at four time points within 6 months. Polyneuropathy was assessed using the Neurologic Disability Scale; the fall risk was assessed by functional tests (Tinetti Test, Chair-Rising Test, and Timed up and Go Test). Patient-reported outcomes comprised the Hospitality Anxiety and Depression Scale (HADS), the Falls Efficacy Scale – International (FES-I) to assess the fear of falling, and the Physical Activity for the Elderly (PASE) questionnaire. Three falls occurred during the study. All fallen participants had a high fall risk-index (≥4 more risk factors) compared to only 30% of the non-fallen participants (p = 0.03) and suffered more frequently from pre-existing mild polyneuropathy (p = 0.049). Study discontinuation (n = 12) was associated with a higher rate of polypharmacy (p = 0.045), anxiety (HADS-A, p = 0.03), and specific fear of falling (FES-I, p = 0.025). In contrast, study completers (n = 8) reported an improvement in physical activity (PASE) (p = 0.018). In summary, pre-existing fall-risk factors impacted more falls than chemotherapy. A fall risk index offers a time-efficient screening option in an outpatient oncological setting.
Outcomes of low-risk birth care during the Covid-19 pandemic: A cohort study from a tertiary care center in Lithuania
Authors: Poškienė Ingrida , Minkauskienė Meilė , Kregždytė Rima , Jarienė Kristina , Kliučinskas Mindaugas 
Published: May 2023

Abstract
According to the World Health Organization, midwife-led care is the most appropriate and cost-effective type of perinatal care. As the Covid-19 pandemic with its drastic changes and challenges for the health systems and the medical staff made large adjustments to the healthcare delivery system, midwife-led care became an even more important supportive tool in maintaining unnecessary interventions. This retrospective cohort study aims to compare the outcomes of midwife-led care and team-led care in low-risk births between the Covid-19 pandemic and non-Covid-19 pandemic period. The total studied population was 1,185 singleton births and consisted of 727 births during the non-Covid-19 period and 458 births from the Covid-19 period. The study revealed the safety of low-risk birth care during the first wave of the Covid-19 pandemic in both groups. The maternal and perinatal outcomes remained stable without an increased rate of unsuccessful vaginal births and newborn asphyxia; moreover, birth care of low-risk women provided by midwives preserved autonomy, integrity, and resistance to responding to a disaster. The aforementioned results exhibit that high-quality, safe supervision by midwives in low-risk births can be provided even in high-stress circumstances.
Gradient-distributed ZTAp-VCp/Fe45 as new anti-wear composite material and its bonding properties during composite casting
Authors: Fan Lei , Hu Chun , Yang Neng , Fan Xingshuai , Cheng Jie , Li Xiangming 
Published: May 2023

Abstract
In this article, gradient-distributed VCp-ZTAp/Fe45 composites were prepared by vacuum sintering, and three-body abrasive wear experiments were carried out to investigate its anti-wear performance. The composite casting of VCp-ZTAp/Fe45 was investigated by using the finite element method and experiments, and the bonding between the Fe45 substrate and 35SiMnCrMoNi steel was fully investigated. Results show the in situ formation of VCp in the VCp-ZTAp/Fe45 composite matrix during vacuum sintering. The anti-wear property of the VCp-ZTAp/Fe45 composite is ca. 7 times that of Hardox450 and NM450 and ca. 8 times of 30SiMn. There forms a solid metallurgical bonding between the Fe45 matrix of VCp-ZTAp/Fe45 and 35SiMnCrMoNi steel, with a ca. 80 μm thickness of the bonding area during the composite casting.
Model-Based Small Area Estimation of Regional-Level Maternal Mortality Prevalence in Ghana
Authors: Jakperik Dioggban , Chukwudum Queensley Chidimma , Adjabui Michael Jackson 
Published: May 2023

Abstract
The study involved 1240 women covering the ten administrative regions of Ghana. The aim was to study the prevalence of maternal mortality and its distribution across the ten regions based on given demographic factors. Three main analytical methods were used: Direct estimation method, Fay-Herriot method and Binary Logistic regression. The study revealed that prevalence of maternal mortality in Ghana was high among women engaged in manual works, rural dwellers, women living without partners and women living in pro-poor families. The Northern region had the highest number of maternal deaths followed by the Western region whilst the Ashanti and the Upper East regions had the lowest number of maternal deaths. There is therefore the need for Ghana Health Service to engage all stakeholders in checking maternal mortality in the country.
An Investigation of the cultural intelligence of pre-service music teachers in Turkish Universities
Authors: Sibel Celik  
Published: May 2023

Culture constitutes all the values of a society; they are all the building blocks that can be transferred, renewed, and come from the past to the present. Turkey is a diverse, rich and culturally diverse country. In today's world, the concept of cultural intelligence, which is necessary for people to adapt in different and multicultural environments is substantial. In this context, it is extremely important for music teachers to adapt in multicultural environments for their efficient work. This purpose of this study is to investigate of pre-service music teachers’ cultural intelligence and to determine by some variables whether differ or not. This study was conducted with quantitative research methods. Descriptive analysis, Independent Group t-test, One-Way Analysis of Variance (ANOVA), Kruskal Wallis-H Test, Pearson Correlation Coefficient were used. In study, which was carried out with quantitative research, 278 participants who study at seven various regions of Turkey in the 2020-2021 academic year. It has been determined that the cultural intelligence levels are at a good level and the relations between them are positive. Cultural intelligence levels of participants do not differ significantly by the gender, age, university, parents' education status. Solely it was found statistically significant whether there was someone involved in music in the family in metacognition and cognition sub-dimensions. As a result, it was seen that the cultural intelligence levels of the pre-service music teachers were good and generally did not differ according to demographic variables. The novelty of this study is that the framework has identified preservice music teachers’ cultural intelligence levels in Turkey. Furthermore, this study can be a point of reference to stakeholders and researchers on this music education axis. The findings of this study also serve to foresee education sector about the issues related to the implementations of higher institutions of teacher educations.
A comparative study of efficacy and side effects of nifedipine with nifedipine along with dydrogesterone in management of preterm labor
Authors: Singh Sapna , Tyagi Preeti , Anand Deepak , Gupta Nitika , Gupta Rashmi 
Published: May 2023

Background: Preterm labor remains one of the major cause of neonatal morbidity and mortality. Different tocolytics have been studied for prolongation of pregnancy, role of progesterone in increasing latency period remains controversial. Aim of the study was to compare efficacy of nifedipine with nifedipine along with dydrogesterone as a tocolytic agent in case of preterm labor and find its impact on maternal and neonatal outcome.
Methods: This study was conducted in 100 women who presented with symptoms of preterm labor, patients were then randomized to nifedipine plus dydrogesterone therapy or nifedipine treatment. Group I received Nifedipine plus dydrogesterone 10 mg and group II received only nifedipine.
Results: There was significant difference in latency period between group I and group II polongation beyond 1 week was observed in 58% in group I and 32% in group II. There is significant difference in APGAR score at 1 minute and 5 minute between patients of group I and group II. In group I, 57.4% neonates have APGAR >7 whereas in group II 31.9% neonates have APGAR >7 at 1 minute. In Group I, 89.4 % neonates have APGAR >7 whereas in group II 68.1% neonates have APGAR >7 at 5 minutes. The mean birth weight in group I was 1.86 with SD 0.35 whereas in group II it was 1.72 with SD 0.34 which is statistically significant. However, no significant difference was found between admission in neonatal intensive care unit or neonatal complications and adverse effects between 2 groups.
Conclusions: This study found dydrogesterone along with nifedipine is more effective as tocolytic in comparison to nifedipine alone.
A cross sectional study on the frequency of thyroid disorders in pregnancy and the asssociated obstetric complications
Authors: K. Sreelakshmy 
Published: May 2023

Background: Thyroid disorders have a yet unclear impact on obstetric complications. The studies have been varied and mostly contradictory. The aim of the study was to examine the pattern of thyroid disorders and its obstetric complications.
Methods: This cross-sectional study enrolled 334 pregnant women of less than 12 weeks of gestation. After routine clinical and ultrasound evaluation of all cases, all baseline investigations and TSH was done. In all cases with low TSH free T3 and free T4 was done. All patients were followed up till delivery and the obstetric events were recorded. The data collected were analysed using chi-square test.
Results: Of the 334 enrolled the data on pregnancy related events were available for 276 patients. Subclinical hypothyroidism was detected in 10.1% of the population while 3.6% were having overt (clinical) hypothyroidism. Anaemia was more in subclinical hypothyroidism (39.3%) and overt hypothyroidism (40%). Pre-eclampsia was seen 17.85% with subclinical hypothyroidism and 30% with overt hypothyroidism. Eclampsia was seen in 3.7% of subclinical hypothyroidism and 10% of clinical hypothyroidism. Gestational diabetes mellitus (GDM) was more in patients with subclinical hypothyroidism (25%) and overt hypothyroidism (20%). Oligohydramnios and IUGR were higher in the subclinical hypothyroidism (21.42%, 10.7%) and overt hypothyroidism (20%, 10%). There was no difference between the euthyroid, subclinical hypothyroidism and overt hypothyroidism groups with respect to any of the other variables.
Conclusions: There was a high frequency of thyroid disorders among pregnant women in our study and this had adverse obstetric consequences.