bluuebunny/crossref_metadata_2025 huggingface dataset:
The Effect of Learning Mathematics with Problem Solving Methods on the Ability to Solve Story Problems in Class IX Students of SMP Negeri 6 Batauga
Authors: Anwar Anwar , Rajun Minarti
Published: August 2022

The formulation of the research problem is whether there is an effect of learning mathematics with problem solving methods on the ability to solve story problems in class IX students of SMP Negeri 6 Batauga?. The purpose of this study was to determine the effect of learning mathematics with problem solving methods on the ability to solve story problems in class IX students of SMP Negeri 6 Batauga. This research is a quantitative research with a quasi-experimental design method. The population in this study were students of class IX SMP Negeri 6 Batauga which consisted of 2 study groups with details of class IX A as many as 23 students and class IX B as many as 22 students and the samples in this study were taken from the entire population. This research data collection by using tests. The research data were analyzed using the average difference test. However, previously, descriptive analysis and inferential analysis were carried out. The results of this study showed that based on the results of descriptive analysis the average value of the increase in test results of experimental class students was 23.7391, the average increase in test results of control class students was 16.4762, and based on the results of inferential analysis by looking at the normality test, a significant value was obtained. the test results of the experimental class students were 0.200 and the control class was 0.133, while the homogeneity test showed a significant value in both classes 0.073 > 0.05. So it can be said that the two classes are normally distributed and homogeneous. By using the t-test, it is known that the significant value is 0.001 <0.05, which means that H0 is rejected. So it was concluded that there was an effect of learning mathematics with problem solving methods on the ability to solve math story problems in class IX students of SMP Negeri 6 Batauga.
Design and Build a Data Collection System for a Solar Power Plant Based on Wireless Fidelity
Authors: Saputra Riza Hadi , Sahara Ain
Published: August 2022

The solar cell module absorbs electrons from sunlight where the electrons are converted through a semiconductor intermediary in the solar cell module. In Kalimantan, in particular, it has the potential to install a Solar Power Plant because it is traversed by the equator. However, there are various disadvantages of the Solar Power Plant, namely the building is quite large, so it needs extra monitoring so that all the conditions of the Solar Power Plant can be known. One of the data communication methods in question is using the telemetry method or long distance communication. There are many ways for the telemetry method, one of which is to use a wireless system with a connection to a cloud storage database. In short, data in the field can be sent to users wherever they are. Data sent to previous users is sent through a cloud storage database where the data can be accessed by anyone. For data sent from the Solar Power Plant in the form of incoming and outgoing voltages as well as incoming and outgoing currents. Based on the research results, it is known that the design of the data transmission system for incoming and outgoing voltages as well as incoming and outgoing currents is made from a variety of component tools used are the solar cell module, Robotdyn Mega Wi-Fi, voltage sensor, current sensor, SCC, inverter, and battery. In the process of sending data using a Wi-Fi router, data originating from the sensor is sent to Robotdyn where inside Robotdyn there is a Wi-Fi module which will then be assisted to be forwarded via a Wi-Fi router whose internet network source uses GSM. The data sent to the cloud storage database is assisted by the PHP programming language and to display the website using the HTML programming language.
Classification of Graduate Profiles Based on Graduate Tracer Study Using Algorithm Naive Bayes Classifier
Authors: Sinuraya Junus , Friendly
Published: August 2022

The graduate profile is the role of the graduate of the study program or field of expertise / field of work planned after completing education from the study program. The determination of the profile of study program graduates is generally carried out based on the results of the assessment of stakeholder needs. Based on data from the Ministry of Research, Technology and Higher Education, the IT study program is one of the most majors or study programs in Indonesian universities and the highest number of enthusiasts choose this study program each year. Each year, graduates of IT study programs have a large number of graduates, both vocational and non- vocational colleges. The number of IT graduates is large but they have low graduate competencies, even they do not have competencies in the IT field so that their work is not in accordance with the graduate profile that has been designed. Therefore, it is necessary to conduct research to classify the profile of graduates who have worked based on tracer study data using the Naïve Bayes Classifier method. This study uses attributes, namely study program, value criteria, gender and field of work and the labels used are status (Linear and Non-Linear). The results of the study on the classification of the profile of graduates using the Naïve Bayes Classfier method show that alumni work not according to the profile of graduates by 73% and according to the profile of graduates by 23%, with a data accuracy rate of 87% and are included in the good classification category.
Bilateral continuous erector spinae plane block for cardiac surgery: case series
Authors: Quintero-Cifuentes Iván Fernando , Camilo Clement Juan , Cruz-Suárez Gustavo A. , Chaparro-Mendoza Katheryne , Holguín-Noreña Alejandra , Vélez-Esquivia María A.
Published: August 2022

Multimodal analgesia in cardiac surgery sternotomy includes bilateral continuous erector spinae plane block (BC-ESPB). However, the effectiveness of the local anesthetic regimens is still uncertain.
The purpose of this study was to assess pain control achieved with a multimodal analgesia regimen including BC-ESPB at the level of T5 with PCA with a 0.125 % bupivacaine infusion and rescue boluses.
This is a descriptive case series study which recruited 11 adult patients undergoing cardiac surgery through sternotomy in whom multimodal analgesia including BC-ESPB was used, between February and April 2021, at a fourth level institution.
All patients reported pain according to the numeric rating scale (NRS)  ≤ 3 both at rest and in motion, at extubation and then 4 and 12 hours after surgery. After 24 hours the pain was NRS ≤ 3 in 100 % of the patients at rest and in 63.6 % in motion. At 48 h 81 % of the patients reported pain NRS ≤ 3 at rest and in motion. At 72h all patients reported pain NRS ≤ 3 at rest and 82 % in motion. The average intraoperative use of fentanyl was 2.35 µg/kg and postoperative hydromorphone was 5.3, 4.1 and 3.3 mg at 24, 48 and 72 hours, respectively.
Hence, bilateral ESP block in continuous infusion plus rescue boluses allows for proper control of acute intra and post-operative pain.
Perbandingan Identifikasi Telur Cacing Parasit pada Kubis ( Brasseca Oleracea ) Mentah dan Matang
Authors: Hidayati Lisa
Published: August 2022

Telur cacing dapat ditularkan melalui tanah, hewan, makanan, minuman. Sayuran kubis (Brassica oleracea) merupakan makanan yang sering dihidangkan sebagai lalapan. Penelitian ini bertujuan untuk membandingkan jumlah telur cacing pada Barssica oleracea mentah dan matang di pasar Banjaran Kabupaten Bandung. Jenis penelitian ini adalah penelitian analitik observasional. Hasil pengamatan dilihat dibawah mikroskop dengan pembesaran 10 x 10. Berdasarkan pengamatan diperoleh telur Ascaris lumbricoides, telur Trichuris trichiura, dan telur Hookworm masing- masing sebanyak 85% telur cacing parasit pada kubis mentah (Ascaris lumbricoides, Trichuris trichiura dan Hookworm) dan 15% pada kubis matang (Ascaris lumbricoides). Hasil uji independent sampel test diketahui nilai sig. (2-tiled) sebesar 0,004 < 0,05, yang berarti ada perbedaan telur cacing pada kubis mentah dan matang.
Special Report: Pathways to Parenthood for LGBTQI+ Families
Authors: Flynn Avril
Published: August 2022

Avril Flynn set up her practice to be totally inclusive of women and families of every shape and size, having noticed that there were no antenatal birth or baby educators who specifically considered the varied needs of the LGBTQI+ community. Through the pandemic and having moved online, the need for her service has never been greater. She shares some of her knowledge about the varied ways in which the queer community can grow their families. Avril is a passionate advocate for inclusivity and inclusion and feels that change is possible through better understanding and education, particularly of student midwives.
Comparative study of breast core needle biopsy (CNB) findings with ultrasound BI-RADS subtyping
Authors: Taghipour zahir Shokouh , Aminpour Sara , Jafari-Nedooshan Jamal , Rahmani Koorosh , SafiDahaj Farzan
Published: August 2022

 Introduction: Given the high prevalence of breast cancer, developing quick and accessible diagnostics solutions is critical. The BIRADS classification is a reliable method for assessing and estimating the risk of malignancy in breast lesions.

 Aim: The aim of this study was to compare the results of core needle biopsy of breast lesions and sonographic findings based on the BIRADS category in Yazd.

 Materials and methods: This retrospective analytical study was done on all core needle biopsy specimens referred to Mortaz hospital, Yazd, Iran from 2010 to 2019. Demographic data such as age, laterality of the lesion, BIRADS category, and pathology reports were extracted from patients' hospital folders. Data were analyzed by SPSS version 21. P < 0.05 was considered statistically significant.

 Results: In total, 514 cases with a mean age of 43.9 ± 9.4 years were studied. Among them, 104 cases (20.2%) were malignant and 410 cases (79.8%) were benign. The most common benign and malignant lesions were fibroadenoma (24.9%), and infiltrative ductal carcinoma (83.7%) respectively. The most common BIRADS was class 4A (54.9%). Patients with benign lesions were mostly in the 3rd and 4th decade of life, while malignant lesions were more in the 4th and 5th decades, and this difference was statistically significant (P = 0.001). The correlation between ultrasound diagnoses (BIRADS) and pathology findings was statistically significant (P < 0.001).

 Conclusion: Based on the results, there is a significant correlation between ultrasound outcomes according to BIRADS and pathology results, and the radiology-pathology accordance, owing to its high accuracy, can be very helpful in correctly diagnosing, monitoring, and managing the lesion
Enhanced Recovery After Surgery (ERAS) protocol in minimally invasive gynecological surgery: a review of the literature
Authors: Slavchev Stanislav , Yordanov Angel
Published: August 2022

Enhanced Recovery After Surgery (ERAS) is a complex system of procedures that necessitates multidisciplinary patient careduring the preoperative, intraoperative, and postoperative phases. Over the last two decades, the ERAS protocol, which wasinitially described in colorectal surgery, has gradually expanded to other surgical specialties. Gynecological surgery is noexception, whether for benign or malignant conditions. The ERAS program's primary objective is to overcome the pathophysiological processes associated with surgical stress and to facilitate the patient's rapid recovery, while minimizing complications, hospital stays, and costs. The objectives of minimally invasive surgical procedures largely overlap with the objectives of the ERAS program. The central question is whether the ERAS protocol can provide additional benefits beyondthose inherent in minimally invasive surgical procedures. We analyzed scientific data from studies examining the ERASsystem's application in minimally invasive gynecological surgery (MIGS) and present them in this review. We presenta summary of the research findings on the ERAS system's effectiveness and safety as measured by the following parameters:length of hospital stay or same-day discharge, pain control and opioid use, and complication rates when compared to thestandard approach. Despite the heterogeneity of the studies, evidence supports the benefits of using the ERAS program inminimally invasive gynecologic surgery, possibly due to the personalized patient care and specific activities that place the patient in more physiological conditions.
Prevalence of COVID-19 Infection in Type 2 Diabetes Patients and Their Anxiety Levels
Authors: Yilmaz PhD. RN, Associate Prof Feride Taskin , Cetindag Ciltas Arzuhan
Published: August 2022

Purpose: This study was conducted to identify the prevalence of COVID-19 infection and anxiety levels in type 2 diabetes patients. Materials and methods: A total of 201 diabetes patients who presented to the internal medicine and endocrinology and metabolic diseases outpatient clinics of a university hospital between 19 October and 19 December 2020 were included in this descriptive and cross-sectional study. The data were collected using a Patient Identification Form and the Coronavirus Anxiety Scale. Chi-squared test and Fisher's exact test were used to compare the patients' COVID-19 infection status and anxiety levels based on some variables. Results: It was determined 37.8% of the participants had COVID-19 infection before. Among the participants who had COVID-19 infection, 51.3% stated that the COVID-19 infection aggravated their diabetes symptoms, and 13.2% said they received intensive care support due to the infection. Besides, it was found that 17.9% of the participants had high levels of anxiety. The participants who had COVID-19 before had a lower percentage of having any diabetes-related complication than those who never had COVID-19 before (p<0.05). Moreover, the rates of those who had COVID-19 before, those who thought of having adequate information about COVID-19 infection, and those who participated in the use of masks against the risk of COVID-19 infection were lower among the participants who had high levels of COVID-19 anxiety (p<0.05). Conclusions: It was discerned that the diabetes patients had a higher frequency of having experienced COVID-19 infection, and nearly onefifth of them had high levels of COVID-19-related anxiety. In this respect, following up diabetes patients at home during the COVID-19 pandemic and offering telehealth services to diabetes patients who are unable to visit healthcare facilities due to the pandemic is recommended. Keywords: COVID-19, anxiety, diabetes, frequency
Investigation of anxiety, depression and sexual life quality in women with the diagnosis of breast cancer
Authors: GÜVEN Emel , Birsen Altay
Published: August 2022

Materials and methods: The universe of this study consisted of 240 women aged between 18-and 65 who were diagnosed with breast cancer. The study sample consisted of 180 female patients with breast cancer who accepted to participate in the study. The data were collected by using the "Personal Information Form", "Hospital Anxiety and Depression Scale," and "Sexual Life Quality Scale". In evaluating data, percentage, mean, Kruskal Wallis, Mann Whitney U, and Correlation analyzes were used. Results: The mean age of the patients with breast cancer was 52 years; 50% were primary school graduates, 21,1% worked, and 66,1% were middle income. 10.6% of patients had significant anxiety, and 13.9% had significant depression. Anxiety is affected by the status of income, type of place of residence, whether to have surgery, perception type of health status, and whether or not to receive radiotherapy (p<0,05). Depression was affected by the type of place of residence, perception type of health status, and whether or not to receive radiotherapy (p<0,05). It was found that sexual quality of life was affected by place, breast cancer in the family, and perception type of health status. However, the quality of sexual life of the patients was good (p<0,05). Conclusions: There was a statistically significant negative correlation between the Hospital Anxiety and Depression Scale's mean total score of the Sexual Life Quality Scale (p<0,05). As anxiety and depression increased, the quality of sexual life decreased. Keywords: Anxiety, breast cancer, depression, quality of sexual life.
Evaluation of the relationship between serum levels of 25-hydroxyvitamin D and prognostic factors in breast cancer
Authors: Heiranizadeh Naeimeh , Alavizadeh Fatemeh Sadat , Jafari Nodooshan Jamal , Neshan Mahdi
Published: August 2022

Abstract
Introduction: Breast cancer is the most frequent invasive malignancy in women worldwide. There is a modifiable risk factor (such as serum vitamin D level) for this cancer. We decided to conduct this study since the influence of serum vitamin D levels on breast cancer is still controversial.
Methods and materials: In this analytical cross-sectional study, 103 patients who were diagnosed with breast cancer were included. Patients' demographical, clinical and pathological features were all recorded. After the laboratory provided the serum vitamin D level, it was included in the checklist. Serum vitamin D level was categorized into 3 groups of <10 ng/ml, 10-30 ng/ml and >30 ng/ml. The chi-square test was used to assess the relationship between vitamin D levels and clinicopathological features of the patients in SPSS software. The results were considered statistically significant at P-value <0.05.
Results: The mean age of the patients was 47.97±8.8 years. The mean serum vitamin D level was 28.72 ± 19.9 ng and it was divided into three groups: 1) deficient (10ng), which included 20 (19.4%) patients, 2) insufficient (10-30 ng), which included 48 (46.6%) patients, and 3) normal (>30 ng), which included 35 (34%). low vitamin D level (<320 ng/ml) was significantly mainly detected in cases who were premenopausal (P-value=0.001) with poor prognosis-high grade of the disease (P-value=0.001), positive-nodal involvement (P-value=0.025) and positive Ki-67 (P=0.021). Furthermore, patients with lower serum vitamin D levels interact in fewer outdoor activities (P-value = 0.007) and sleep less during the day (P-value=0.001) and sleep later at night (P-value=0.009).
Conclusion: Decreased serum 25(OH) D levels were linked with a higher histological grade of the tumor and lymph node involvement. Low serum 25(OH) D levels were also related to prognostic factors such as high Ki67 expression and the presence of negative hormone receptors (ER and PR). Our data support negative correlations between vitamin D levels and the risk of breast cancer with poor prognostic characteristics, based on observational research.
Keywords: Vitamin D, 25-hydroxyvitamin D, breast cancer, Prognosis
The reliability and validity of the Turkish version of the brief pain inventory-short form in patients with cancer pain
Authors: Balta Selin , Ünal-Ulutatar Çağrı , Mirzayeva Samaya , Çetin Başkaya Mehmet , Akyüz Gülseren
Published: August 2022

Objectives: The aim of this study was to evaluate the reliability and validity of the Turkish version of the Brief Pain Inventory (BPI-TR) in patients with cancer pain.

Patients and methods: The study included 130 patients (70 females, 60 males; mean age: 56.1±13.3 years; range, 18 to 87 years) diagnosed with any type and stage of cancer between April 2017 and March 2018. Brief Pain Inventory, Pain Disability Index, EORTC QLQ C30 and Pain Management Index were used to collect data. The reliability of the scale was tested with `internal consistency` and its validity with `construct validity`. Cronbach`s alpha values of >0.70 were accepted as the threshold for internal consistency. Construct validity was tested in the context of structural validity with factor analysis and also tested in terms of convergent construct validity by investigating its correlation with the Pain Disability Index (PDI) and the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30).

Results: The internal consistency of pain severity and pain-related interference was found as 0.91 and 0.95, respectively. The alpha coefficient was found to be between 0.795 and 0.873 for the pain severity index and between 0.729 and 0.861 for the pain-related interference index. There was a clear link between the BPI-TR pain severity index and the ninth question in the EORTC QLQ-C30 (rho=0.66, p<0.05). The association between the BPI-TR interference index and the 19th question in the EORTC QLQ-C30 was also strong (rho=0.77, p<0.05). The correlation between the BPI-TR interference index and the PDI was found to be moderate (rho=0.50, p<0.05).

Conclusion: The BPI-TR was found to be a reliable and legitimate tool to evaluate cancer pain in the Turkish population.
Stress level and quality of life of adolescents with idiopathic scoliosis during brace treatment
Authors: Pezham Hamid , Babaee Taher , Bagheripour Batoul , Asgari Mohaddeseh , Jiryaei Zahra , Vahab Kashani Reza , Rahgozar Mehdi , Arazpour Mokhtar
Published: August 2022

Objectives: This study aimed to evaluate the effect of brace treatment on the stress level and quality of life (QoL) of adolescents with idiopathic scoliosis.

Patients and methods: A total of 194 adolescent individuals were evaluated in two groups: the adolescent idiopathic scoliosis (AIS) group with 97 patients (20 males, 77 females; mean age: 13.9±1.8 years; range 10 to 18 years) and the control group with 97 age-and sex-matched participants (20 males, 77 females; mean age: 14.3±1.7 years; range 10 to 18 years) with no spinal deformity. The AIS group wore the Milwaukee brace or a thoracolumbosacral orthosis based on the location of the apical vertebra. All participants of the AIS group filled the Persian versions of the revised Scoliosis Research Society 22-item questionnaire (SRS-22r), the eight-item Bad Sobernheim Stress Questionnaire (BSSQ)-Deformity, and BSSQ-Brace. The control group only answered the first 20 items (subtotal items) of the SRS-22r. The brace-related QoL and stress level were assessed based on sex, brace, and deformity types.

Results: The subtotal score of the SRS-22r in the AIS group was significantly lower than the control group (p<0.001). There was a significant difference between deformity-related stress and brace-related stress (p<0.001). Regarding the type of treatment, there were no significant differences in QoL and stress level between the Milwaukee brace and thoracolumbosacral orthosis groups (p>0.05). Moreover, there was a weak correlation between the BSSQ-Brace and the self-image, mental-health scores, and the total scores of the SRS-22r (r=0.39 to 0.42, p<0.001); the low level of perceived stress was associated with a high level of perceived QoL.

Conclusion: The stress due to brace treatment can decrease function/activity and self-image of adolescents with idiopathic scoliosis.
A case of Guillain-Barre syndrome after the second dose of AstraZeneca COVID-19 vaccination
Authors: Bazrafshan Hanieh , Sadat Mohamadi Jahromi Leila , Parvin Reyhaneh , Ashraf Alireza
Published: August 2022

Coronavirus disease 2019 (COVID-19) is a novel virus that primarily involves the respiratory system. Due to the COVID-19 pandemic, an extensive vaccination program is underway worldwide. Herein, we present a 68-year-old woman with paresthesia of both hands associated with gait instability, which started three to four days after receiving the second dose of Oxford/AstraZeneca vaccine against the COVID-19 infection. The acute inflammatory demyelinating polyradiculoneuropathy subtype of the Guillain-Barre syndrome, which is the most common subtype, was diagnosed. Regardless of the beneficial effects of the vaccines, this case report aimed to evaluate their severe complications, such as Guillain-Barre syndrome, to reduce their occurrence in the future.
PENGARUH CITRA MEREK, KUALIATAS PRODUK, DAN BRAND AMBASSADOR TERHADAP KEPUTUSAN PEMBELIAN PRODUK SCARLETT
Authors: Dwi Indah Utami  , Hidayah Nurul
Published: August 2022

Penelitian ini dilakukan untuk menganalisis pengaruh citra merek, kualitas produk, dan brand ambassador terhadap keputusan pembelian produk Scarlett. Metode penelitian menggunakan data primer dari penyebaran kuesioner kepada 100 responden. Tahap uji yang dilakukan adalah uji validitas, uji reliabilitas, uji asumsi klasik, regresi linear berganda, uji hipotesis, dan koefisien determinasi. Hasil penelitian secara parsial menunjukan bahwa citra merek tidak berpengaruh terhadap keputusan pembelian, sedangkan kualitas produk, dan brand ambassador berpengaruh terhadap keputusan pembelian pada produk Scarlett.
The Use of Rosetta Stone in Improving Speaking Skill
Authors: Meri Aryani
Published: August 2022

The purpose of this study is to determine the efficacy of using technology-based teaching media to improve the speaking skills of STP Mataram Hospitality Study Program students. Several media that use computers and the internet will be used in this study to teach speaking. Rosetta Stone is used as learning media for students' speaking learning.  In this study, 30 students served as the experimental group, while 30 other students served as the control group. According to the findings of this study, the value of the t-test > t table (3.462> 2.676) indicates a significant difference in English speaking skills when using technology-based learning media. Finally, the use of technology-based learning media is effective in improving students' speaking abilities.
A Case Study: Psychophysiological Impact of Polycystic Ovarian Syndrome and its Management in Pakistani Women
Authors: Muneeb Ullah
Published: August 2022

Poly cystic ovary syndrome (PCOS) is a complicated and heterogenous endocrine disorder in the women and it can cause different metabolic, reproductive, and psychological abnormalities and is known for effecting about one among fifteen women globally. PCOS has been frequently diagnosed in women across pakistan and is previously reported to cause different physical and psychological abnormalities like obesity, infertility, hirsutism, depression, and anxiety on a large scale. Irrespective of the higher prevalence still there is inadequacy in the knowledge about PCOS. The aim of this study is to determine the prevalence of different physical and psychological   symptoms of PCOS and their co relation with the impact on the quality of life of the affected individual and common methods of treatment used for PCOS. A questionnaire-based study would be designed to collect the data randomly from women of about 17-50 years of age who are affected with PCOS. This questionnaire would be containing all the necessary questions related to the physical and psychological impacts and the treatment methods. This questionnaire-based survey would be analysed by using different statistical analysis tools to provide the complete analytical results. This study will help the medical practioners in the determination of the most prevalent symptoms and can also aid for the improvision in the treatment methods to enhance effectiveness of treatment. It can be used in different educational seminars to spread awareness regarding the symptoms and treatment. It can also aid in further research.
PENGARUH BERBAGAI JENIS MULSA DAN DOSIS PUPUK KANDANG KAMBING TERHADA PERTUMBUHAN DAN HASIL TANAMAN BAWANG MERAH (Allium cepa)
Authors: Hayatudin Hayatudin , Adnan Adnan
Published: August 2022

Tujuan penelitian ini  adalah untuk mengetahui interaksi antara mulsa dan pupuk kandang kambing   terhadap pertumbuhan dan hasil bawang merah, mengetahui pengaruh mulsa terhadap pertunbuhan hasil bawang merah dan mengetahui pengaruh pupuk kandang kambing terhadap hasil bawang merah.  Penelitian ini dilaksanakan di kebun percobaan Universitas Madako Tolitoli  Kecamatan Baolan Kabupaten Tolitoli Provinsi Sulawesi Tengah dengan ketinggian tempat 43 mdpl dengan suhu rata-rata 33ºC, dilaksanakan dari bulan januari sampai maret 2020. Penelitian ini merupakan jenis penelitian eksperimen yang mencobakan berbagai jenis mulsa dan dosis pupuk kandang kambing. Tanaman bawang merah sebagai tanaman indikator berdasarkan rancanagan percobaan, perlakuan merupakan kombinasi dua faktor disusun dengan mengunakan rancangan acak kelompok (RAK) faktor pertama adalah jenis mulsa (M) terdiri dari tiga jenis perlakuan yaitu : M0 = kontrol, M1= mulsa plastik perak, M2= mulsa sekam padi, Sedangkan faktor kedua pengunaan dosis pupuk kandang kambing (K) terdiri 3 taraf yaitu: K0= kontrol, K1= 10 t.ha-1, K2= 20 t.ha-1, Berdasarkan dua faktor diatas, 3x3 = 9 kombinasi perlakuan. Setiap kombinasi perlakuan diulang tiga kali 9x3 = 27 petak percobaan. Hasil sidik ragam menunjukan bahwa interaksi perlakuan jenis mulsa dan dosis  pupuk kandang kambing serta faktor tunggal jenis mulsa tidak berpengaruh nyata terhadap tinggi tanaman pada umur 10, 20, dan 30  HST. Namun faktor tunggal perlakuan dosis pupuk kandang kambing berpengaruh nyata terhadap tinggi tanaman pada umur 40 dan 50 hari setelah tanam.  Hasil sidik ragam menunjukan bahwa interaksi perlakuan jenis mulsa dan dosis  pupuk kandang kambing serta faktor tunggal jenis pupuk kandang kambing tidak berpengaruh nyata terhadap jumlah daun. Namun, faktor tunggal perlakuan mulsa berpengaruh nyata terhadap jumlah umbi.
Pengaruh Pemotongan Bibit Bawang Daun Akibat Pemberian Pupuk Organik Terhadap Pertumbuhan Dan Hasil Tanaman Bawang Daun (Allium fistulosum L.)
Authors: Kahar Kahar , Hayatudin Hayatudin , Alpiana Alpiana
Published: August 2022

Penelitian ini bertujuan untuk mengetahui Pengaruh Pemotongan Bibit Bawang Daun akibat Pemberian Pupuk Organik Terhadap Pertumbuhan Dan Hasil Tanaman Bawang Daun (Allium fistulosum L). Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) pola faktorial. Faktor pertama adalah aplikasi  pupuk organik dengan dosis yang berbeda diberi simbol (D) terdiri dari tiga taraf yaitu : D0 = kontrol, D1= 10 ton.ha-1 atau setara 1 kg / petak dan D2= 15 ton.ha-1 atau setara  2 kg / petak. Sedangkan faktor kedua pemotongan bibit bawang daun diberi simbol (P) terdiri 3  perlakuan yaitu : P0= tidak ada pemotongan, P1= pemotongan 1/3 bagian dari sisa tanaman dan P2= pemotongan 2/3 bagian dari sisa tanaman. Sehingga terdapat 9 kombinasi perlakuan, masing-masing perlakuan diulang sebanyak 3 kali sehingga terdapat 27 petak percobaan. Hasil penelitian ini menunjukkan bahwa  perlakuan pemotongan bibit anakan berpengaruh nyata dan sangat nyata terhadap parameter tinggi tanaman pada  umur 20, 30, 40 dan 50 Hst.  Perlakuan terbaik terdapat pada pemotongan 2/3 bagian dari sisa tanaman. Interaksi pemotongan bibit  bawang daun dengan pemberian pupuk organik dengan dosis yang berbeda  berpengaruh nyata terhadap jumlah anakan pada  umur 60 Hst.Kata kunci = Pupuk organik, Pemotongan, Hasil Bawang Daun
Postoje žáků nižšího sekundárního vzdělávání k homosexualitě
Authors: Šejna Erik
Published: August 2022

Postoje studentů k jejich odlišně orientovaným nebo genderově nestereotypním vrstevníkům jsou tématem celé řady cizojazyčných studií. Nejčastěji však byl řešen kontext terciárního vzdělávání, který poukázal nejen na nutnost se ostrakizací odlišně orientovaných studentů zabývat, ale prokázal i mnohé determinanty, které se ukázaly jako významné při tvorbě negativních postojů vůči homosexuálům. Předkládaná studie se zabývá výzkumem postojů žáků nižšího sekundárního vzdělávání k homosexualitě. V teoretické části poukazujeme na historický kontext vývoje předsudků vůči homosexualitě a věnujeme se rovněž úvodem do již proběhlých studií a výzkumů postojům k homosexualitě na různých stupních vzdělávání. Následně je předkládáno výzkumné šetření, v rámci kterého bylo pomocí standardizovaného dotazníku osloveno 316 žáků 8. a 9. tříd či tercie a kvarty na víceletých gymnáziích. I když jsou výsledky v průměru pozitivní, více než 7 % žáků stále zastává vysoce až extrémně negativní postoje k homosexuálům. Statistická významnost byla prokázána pro proměnnou pohlaví (muži zastávají negativnější postoje; hladina účinku 26 %), druh homosexuality (mužská homosexualita je vnímána negativněji) či typ navštěvované školy (žáci základních škol zastávají negativnější postoje).
A comparison between ecological-dynamic and cognitive approach to improve accuracy in basketball shot
Authors: Aliberti Sara
Published: August 2022

Background The shot is a fundamental skill in basketball that requires high accuracy, because is the tool by which players translate their team's offensive actions into points. Basketball is one of the most practiced situational sports in physical education hours in schools. However, it is still mostly teaching according to a traditional, prescriptive-based model. The aim of the study was to compare prescriptive teaching with ecological-dynamic learning for improving shooting accuracy in a group of 3rd year high school students. Methods The sample is made up of 32 students (16 ± 0.72) divided into 2 groups: Group A, consisting of 16 students who were administered a training protocol based on the ecological-dynamic approach, and Group B, consisting of 16 students, who followed a cognitive approach. The close range shooting test was administered in and out to test the students' level of shooting accuracy. A t test for paired dependent samples was performed for each group to test which of the two groups had the greater improvement. Data were analyzed using SPSS. Results The results were statistically significant in both cases (p < 0.05); however, group A had a greater improvement in shooting accuracy than group B. Conclusion The ecological-dynamic approach was able to improve accuracy in shot more than the cognitive approach in a group of high school students.
Relationship between speed and explosive power of lower limbs in semi-elite football players
Authors: Vencúrik Tomáš , Fikar Jakub
Published: August 2022

PURPOSE: This study focuses on the relationship between speed (acceleration, maximum speed, and change of direction speed) and explosive power of lower limbs represented by countermovement jump (CMJ) in semi-elite football players.
METHODS: Twenty semi-elite football players (n = 20; 25.1 ± 6.2 years) participated in the study. All participants were assessed using the following 5 tests: countermovement jump (CMJ), 5-0-5 Agility test with dominant lower limb turn and non-dominant lower limb turn, 10-meter linear sprint, 30-meter linear sprint.
RESULTS: Pearson’s correlations (p ≤ 0.05) calculated the relationship between CMJ and speed tests. Subjects displayed a very large correlation between 10 and 30-meter sprints and CMJ (r = −0.75 and −0.76). There was a moderate correlation between 505 COD tests (non-dominant and dominant) and CMJ (r = −0.54 and −0.61, respectively).
CONCLUSIONS: There are large to very large relationships between speed and power attributes in semi-elite soccer players, especially between linear speed and CMJ. Improving the explosiveness and power of lower limbs can lead to increasing velocity and enhancing sport-specific speed.
Keywords: acceleration, maximal speed, change of direction speed, countermovement jump, correlation
Relationship between motor learning and general intelligence
Authors: Horička Pavol , Šimonek Jaromír
Published: August 2022

AIM: The aim of the research was to find out the differences in the level of motor learning (ML) and general intelligence (IQ). The research sample included 120 boys and girls of primary school and grammar school aged 12-17 years and the subsequent identification of a possible relationship between the two indicators. METHODS: 120 students Elementary school (ES) and Secondary Grammar School (SGS) took part in testing the level of motor learning and intelligence (n = 120). We evaluated the level of ML in boys and girls in the demonstration of learned gymnastic elements. We used the intelligence test to determine the level of general intelligence [1]. RESULTS: The results did not show significant differences in the level of motor learning and intelligence between the genders in either age category. Correlation analysis confirmed a significant relationship between ML and IQ excluding the gender factor (r = -0.297). When gender was taken into account, the relationship was seen only in boys (r = -0.312). We note that we found a lower rate of ML in students with a higher level of intelligence. CONCLUSION: We assume the continuity of certain mental and motor processes, which is called motor intelligence. The results of our research did not show significant differences in the level of ML and IQ in both genders. Boys slightly dominated in ML, girls in IQ. This difference decreases with increasing age.
Female Spectatorship and Unsportsmanlike Conduct at Football Stadiums: Case Study from the Czech Republic
Authors: Scholz Petr , Růžička Ivan
Published: August 2022

Football is the most popular team sport in the world. It is entertainment, primarily for men, but nowadays, it can be said that the number of women at football stadiums is steadily increasing. Given the long history of spectator sports events consumption, it is not a surprising fact that there have also been serious manifestations of spectator aggression. The paper aims to analyze the relationship between women visitors’ verbal and other expression and their violent behavior on an example of SK Slavia Prague football club. Primary data were collected by a questionnaire survey mainly at the Eden stadium and other selected Czech football stadiums in 2015/16 and 2016/17 seasons. A total of 120 respondents (aged 25.01 ± 10.20 years old) participated in this research, and all of the respondents were attending the matches in a stand of home team supporters. We state that there are correlations between women visitors’ verbal and other expression and their violent behavior; e.g., the surveyed respondents had no experience with demolishing stadiums and other riots. The respondents also consider it to be the most serious activity at 82.58%. The racism display noted similar results. We state that the results are adequate for women visitors.
Influence of cubic nonlinearity effect on quadratic solitons in boundary-constrained self-focusing oscillatory response function system
Authors: Chen Juan , Hu Wei , Lu Da-Quan ,   College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, China,   Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou 510631, China
Published: August 2022

In this paper, we theoretically study the influence of cubic nonlinearity effect on quadratic solitons in the boundary-constrained self-focusing oscillatory response function system. Based on the Newton iteration approach, we numerically solve the nonlinear coupled-wave equations with both quadratic and cubic nonlinearity. Moreover, a family of quadratic solitons is obtained. By comparing the quadratic solitons with both quadratic and cubic nonlinearity with those with only quadratic nonlinearity, we find that the cubic nonlinearity changes the transverse distribution of the soliton profiles only slightly. However, because of the existence of the cubic nonlinearity, quadratic solitons can be found only in the strongly nonlocal case and general nonlocal case, and they cannot be found in the weakly nonlocal case, in which the quadratic solitons with only quadratic nonlinearity can be found. In addition, the existence of cubic nonlinearity reduces the number of extended half-periods of the quadratic solitons. Through the linear stability analysis of the obtained soliton solutions, it is found that the stability intervals of solitons are also shrunk due to the existence of the cubic nonlinearity. The results of the linear stability analysis are verified by the numerical simulations of soliton propagations through using the split-step Fourier method.
Optically controlled silicene and germanene transistors driven by spin-bias
Authors: Zheng Jun , Ma Li , Li Chun-Lei , Yuan Rui-Yang , Guo Ya-Tao , Fu Xu-Ri ,   College of Physics Science and Technology, Bohai University, Jinzhou 121013, China,   College of Elementary Education, Capital Normal University, Beijing 100048, China,   Department of Physics, Capital Normal University, Beijing 100048, China
Published: August 2022

The transistor is the core unit of digital integrated circuits, and its performance and integration are the main determinants of chip performance. With the continuous progress of nano-manufacturing technology and process, high power and heat consumption have become a major problem restricting the development of integrated circuits. Using topological insulators instead of traditional semiconductors, and the spin and valley degrees of freedom instead of charge as information carriers, to design and fabricate transistors, and the use of optical interconnections to replace metal interconnections between functional units, are effective solutions of the thermal power consumption problem of nano-integrated circuits. Based on the two-dimensional topological insulators-silicene and germanene, we theoretically propose a kind of optically controlled transistor suitable for spin bias. The effects of off-resonant circularly polarized light on the output currents of silicene and germanene transistors are calculated by using the non-equilibrium Green's function method. It is shown that the topological properties of silicene (germanene) and the output characteristics of drain current are controlled by the chirality and intensity of incident light. Under the coaction of weak left circularly polarized light and spin bias, the silicene transistors output pure spin current and fully polarized spin-up current. Under the action of strong field, the phase transition of the edge state of the silicene forms a band gap, the transistor is cut off, and the output current is almost zero. Different from the silicene transistor, the germanene transistor can obtain stable pure spin current under a weak light field, and output 100% polarized spin-down current under a strong field. By simultaneously applying off-resonant circularly polarized light of different chirality to the central device region, the germanene transistor can be turned off effectively by using the edge state phase transition induced by the polarized light field and the energy band mismatch caused by the local light field. The output poles of spin-dependent currents are almost equal for silicene and germanene transistors in the ON state, however, the breakdown voltage of the germanene transistor is significantly higher than that of the silicene transistor, and optically controlled germanene transistor can maintain effective operation at higher temperatures.
Fast physical random bit generation of wideband flat chaos signal based on filter feedback
Authors: Liu Yuan , Yuan Ji-Yang , Zhou Xin-Yu , Gu Shuang-Quan , Zhou Pei , Mu Peng-Hua , Li Nian-Qiang ,   School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China,   Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou 215006, China,   Institute of Science and Technology for Opto-Electronic Information, Yantai University, Yantai 264005, China
Published: August 2022

Chaotic lasers feature wide spectrum and noise-like features, and extensively used in various fields, such as secure communications and random bit generation (RBG). Since the physical RBG using optical chaos was demonstrated first by Uchida et al., the optical chaos has been widely investigated in terms of chaos bandwidth and flatness, which determines the rate and randomness of RBG. Owing to the natural stability of semiconductor lasers, external perturbation is required to generate chaotic signals, such as optical injection, current modulation, and optical feedback. Among them, a semiconductor laser with optical feedback has attracted wide attention because of its simple structure and rich dynamic behaviors. Nonetheless, this configuration suffers the influence of the relaxation oscillation, which results in a limited bandwidth (a few GHz) and an uneven power spectrum. To obtain broad-spectrum chaotic signals, considerable efforts have been made in recent years. However, these solutions are associated with complex structures that require delicate manipulation because multiple parameters should be matched, so the cost of some of these schemes in terms of the system complexity can potentially outweigh the benefits.

In this work, we incorporate an optical filter and an amplifier into the feedback loop of a conventional optical feedback system to generate broadband chaotic signals. The effects of the filter detuning frequency and feedback power on the bandwidth and flatness of the chaotic output are investigated experimentally. The experimental results demonstrate that by appropriately adjusting the feedback power and detuning frequency, both the low-frequency components and the high-frequency components of the chaotic output power spectrum can be increased, and the maximum chaotic bandwidth can reach 24.4 GHz with a flatness of 5.7 dB. This phenomenon is attributed to the physical process of beating between the filtered mode and the internal modes of the laser. Furthermore, the optimized chaotic output is processed by retaining the 4 least significant bits and implementing the delayed exclusive-OR (XOR) operation. Our scheme is capable of generating physical random number of the bit rate of 320 Gbit/s, and successfully passes the standard randomness test, i.e. the NIST test (NIST SP 800-22).
Switchable frequency terahertz vortex beam generator
Authors: Zhong Min , Li Jiu-Sheng ,   Center for THz Research, China Jiliang University, Hangzhou 310018, China
Published: August 2022

Most of the reported vortex beam generators generate vortex beams at a fixed frequency, which limits the practical applications. Therefore, it is inevitable to explore a vortex beam generator, which can actively control the operating frequency. We propose a switchable frequency terahertz vortex beam metasurface, it is freely switchable under single-frequency mode and dual-frequency mode by changing the external temperature, the phase state of vanadium dioxide (VO2) is also changeable. External temperature changes will cause VO2 to transform from insulating state to metallic state. Generally, VO2 conductivity can increase by several orders of magnitude as operating temperature changes. By using the phase change property of VO2, we can obtain a metasurface with switchable operating frequencies. For operating at room temperature, the proposed metasurface behaves as a single-frequency terahertz vortex generator. When (left-handed circularly polarized, LCP) terahertz wave is vertically incident on the metasurface, it generates vortex beams with different topological charge numbers at a frequency of 1.1 THz, and the mode purity is above 85%. The simulation results show that the mode purity of the vortex beam with the topological charge l = 1 is 90%, and the mode purity is about 91.1% for the vortex beam with l = 2, and 85.4% for the vortex beam with l = 3. When the external temperature is of 68 ℃, the designed metasurface becomes a dual-frequency vortex beam generator. At this time, the operating frequencies of vortex beams with different topological charges (l = 1, 2, 3) are 0.7 and 1.23 THz, whose mode purities are both above 60%. That is to say, the corresponding mode purities at topological charge with l = 1 for two operating frequencies are 89.1% and 71.6%, respectively. The mode purities are 83.2% and 94.4% with topological charge l = 2, respectively. The mode purities are 62.4% and 68.2% with topological charge l = 3, respectively. Therefore, the proposed switchable frequency terahertz vortex generator provides a new design idea for working frequency modulation in wireless terahertz communication.