bluuebunny/crossref_metadata_2025 huggingface dataset:
Pola Tanam Padi untuk Produktivitas Tinggi dan Indeks Pertanaman yang Optimal di Lahan Rawa Pasang Surut
Authors: Agustiani Nurwulan , Gunawan Indra , Margaret Swisci , Sujinah Sujinah
Published: January 2023

Optimalisasi penggunaan lahan rawa pasang surut untuk meningkatkan produktivitas dan hasil padi dapat dilakukan dengan peningkatan indeks pertanaman (IP). Penelitian ini dilakukan untuk mendapatkan informasi peluang peningkatan indeks pertanaman melalui penggunaan varietas unggul baru padi. Penelitian dilaksanakan pada Januari-Desember 2019 di Desa Sukaraja, Kabupaten Banyuasin, Sumatera Selatan dengan menguji tiga kombinasi pola tanam yang diulang empat kali. Perlakuan pola tanam yaitu: P1: Regas (musim tanam /MT 1)-Regas (MT 2); P2: Inpara 2 (MT 1)-Inpara 2 (MT 2); P3: Inpara 2 (MT 1)-Inpari 19 (MT 2)-Inpari 19 (MT 3). Regas adalah varietas lokal yang umum ditanam petani, Inpara 2 adalah varietas unggul baru (VUB) adaptif lahan rawa, dan Inpari 19 adalah VUB berumur genjah. Budidaya yang diterapkan yaitu Rawa Pasang Surut Intensif, Super, dan Aktual (RAISA). Pengamatan dilakukan terhadap karakter pertumbuhan dan hasil, serta perbandingan hasil antar pola tanam. Pola tanam padi-padi dengan VUB adaptif rawa (Inpara 2) merupakan pola tanam dengan hasil tertinggi sebesar 11.35 ton ha-1 GKG atau 34.6% lebih tinggi dibanding padi lokal. Indeks pertanaman di lahan rawa pasang surut berpeluang ditingkatkan menjadi tiga kali tanam pada kondisi curah hujan tahunan tinggi dengan didukung pendekatan varietas hasil tinggi dan umur pendek.

Kata kunci: budidaya lahan rawa, optimalisasi lahan, padi rawa, pola tanam, RAISA
Perpektif Baru: Manajemen Vegetasi Bawah Tegakan Pada Budidaya Kelapa Sawit Berkelanjutan
Authors: Yahya Sudirman , Mira Ariyanti  , Yenni Asbur
Published: January 2023

Sesama tumbuhan, antara tanaman pokok dan tumbuhan lainnya, sampai tingkat tertentu bersaing dalam mendapatkan sumberdaya lingkungan tumbuh, terutama air dan hara media tumbuh, ruang tumbuh dan unsur iklim mikro. Sehubungan dengan ini, tumbuhan atau vegetasi bawah tegakan dapat ditinjau seberapa besar daya menyaingi dibandingkan dengan besar daya manfaat, baik secara langsung bagi tanaman pokok, pengelolaan kebun maupun terhadap segi lingkungan. Pada tinjauan ini akan diungkapkan keberadaan tumbuhan atau vegetasi bawah tegakan yang lazim yang berperanan sebagai penutup tanah dengan berbagai manfaat dalam mewujudkan teknologi produksi kelapa sawit berkelanjutan. Ada beberapa peubah yang lazim diamati sebagai dampak positif penerapan teknologi produksi berkelanjutan, di antaranya: penurunan emisi gas rumah kaca CO2, peningkatan cadangan karbon, biodiversitas lingkungan, perbaikan neraca air dan hara tanah, koservasi tanah dan air, dan penekanan erosi. Dalam naskah ini akan diungkap dan ditelaah beberapa peubah tersebut sebagai dampak teknologi produksi, khususnya oleh dua spesies vegetasi bawah Nephrolepis biserrata dan Asystasia gangetica.

Kata kunci: biodiversitas, cadangan karbon, neraca air, neraca hara
Сontrast enhanced spectral mammography as a tool for accurate diagnosis of cancer on the background of the dense breast tissue
Authors: Chernaya A. V. , Ulyanova R. Kh. , Bagnenko S. S. , Krivorotko P. V. , Artemyeva A. S. , Zhiltsova E. K. , Novikov S. N. , Danilov V. V. , Krzhivitsky P. I. , Meshkova I. E. , Zaitsev A. N.
Published: January 2023

Introduction. Differential diagnosis of some pathological processes in the breast is difficult on the background of dense breast tissue. This often leads to false conclusions and to late diagnosis of breast cancer (BC) or unreasonable biopsy in a benign process. 50% of breast cancers detected less than 12 months after elective mammography were associated with high density of breast tissue. An important advantage of contrast enhanced spectral mammography (CESM) is that it does not depend on the size of the lesions and the X-ray density of the breast tissue. Objective. To compare the diagnostic performance of CESM and digital mammography (DM) in detection of breast cancer in a group of women with dense breast tissue.

Materials and methods. The data of 438 patients with suspected breast cancer examined from August 2018 to January 2021 were analyzed in the study. The mean age of women was 50 ± 11 years (from 21 to 86 years). In the study group 154 (35%) malignant and 284 (65%) benign lesions were identified. All lesions were histologically verified. Breast tissue density corresponded to types A and B in 161 patients and corresponded to C and D types in 277 patients according to the ACR classification. 154 cases of breast cancer were identified, including 49 patients with density A and B and 105 patients with density C and D types.

Results. Sensitivity, specificity and overall accuracy of DM were 85.7%, 87.3%, 86.8%, respectively. Diagnostic performance of CESM significantly higher than of DM with sensitivity, specificity and accuracy of 96.8% (p < 0.001), 93.3% (p = 0.015), 94.5% (p < 0.001), respectively. CESM had high positive and negative predictive values of 88.7% (p = 0.012) and 98.1% (p < 0.001), which exceeded those of DM – 78.6% and 91.9%, respectively. The diagnostic performance of DM and CESM were comparable in women with normal breast density (types A and B according to ACR), but in patients with high breast density (types C and D according to ACR), CESM was significantly more sensitive in detecting breast cancer.

Conclusion. Thus, diagnostic efficiency of CESM in detecting breast cancer significantly higher in comparison with digital mammography.
The MR mammography of phyllodes tumors of different histological grades
Authors: Serebryakova S. V. , Yukhno E. A. , Kutckaya A. O. , Smirnova V. O.
Published: January 2023

Purpose: to evaluate retrospectively the MR data of the breast phyllodes tumors and to perform comparative analysis of the MR signs and the histological grade of the phyllodes tumors.Materials and methods. The analyses enrolled 27 pathologically confirmed phyllodes tumors (mean age of patient 37.8 y.o.). Following features were evaluated: tumor shape and structure, margins, size, type of contrast enhancement, foci of high signal intensity on the T1-WI, foci of hypo- or isointense signal on the T2-WI comparing with intact breast tissue, presence of cystic inclusions and the type of their margins.Results. The study included 18 benign, 4 borderline and 5 malignant phyllodes tumors. The following features showed significant correlation with the tumor grade: irregular margins of the cystic foci (p = 0.003), foci of hypoor isointense signal on the T2-WI compared with intact breast tissue (p = 0.005). Foci of high signal intensity on the T1-WI were often revealed in the malignant (3/5) and borderline tumors (2/4), but this dependence was not significant (p = 0.021). According to pathomorphological correlation the foci of the high signal intensity on the T1-WI corresponded to hemorrhages, while cystic foci with irregular margins were revealed to be foci of necrosis. The foci of hypo- or isointense signal on the T2-WI compared with intact breast tissue corresponded to the hypercellular stroma.Conclusion. Specific features of phyllodes tumors are useful in differentiation of their histological types; furthermore the MR mammography provides accurate data for planning the point of biopsy.
Possibilities of MRI in the differential diagnosis of non-lactative mastitis and cancer
Authors: Serebryakova S. V. , Shumakova T. A. , Yukhno E. A. , Safronova O. B. , Serebryakov A. L.
Published: January 2023

Non-lactational mastitis is an inflammatory process in the breast tissue that is not associated with lactation. The detection of a malignant transformation during inflammation process is often difficult, because it has similar clinical manifestations. Medical approach depends on the characteristics of the processes which are received from the data obtained from radiation diagnostic methods: whether or not there is a nodular formation or infiltrate, cystic cavities, dilatation of the ducts, how the axillary lymph nodes are changed. Diagnostic errors in inflammatory breast diseases are quite common; according to the literature, errors in the interpretation of clinical, mammographic, and ultrasound signs of cancer during inflammation account for up to 53.1% of cases. Inflammation, as well as cancer, in majority of cases is accompanied by a visually detectable increase in blood flow due to proliferation and neoangiogenesis. Magnetic resonance imaging with dynamic contrast enhancement (MRI) is highly sensitive in detecting areas with increased vascularization and makes it possible to assess their nature with a high degree of probability during any changes in the structure of the breast tissue, including edema and inflammatory infiltration. MR signs that allow to make differential diagnosis are a combination of pathological accumulation and lymphadenopathy, which are coded by the BIRADS system as category 4 and only the absence of contrast agent accumulation may suggest an inflammatory nature of the changes. According to the literature, MRI-DCE is a highly sensitive diagnostic method of identifying cancer during inflammation processes. The results of 85 MR studies with clinical manifestations of non-lactational mastitis were analyzed.

The purpose of study: is to evaluate the possibilities of magnetic resonance mammography in making a differential diagnosis of non-lactational mastitis and breast cancer.
Classification of complications of breast augmentation with silicone gel implants
Authors: Shumakova T. A. , Savello V. E. , Serebryakova S. V. , Afanasieva I. S.
Published: January 2023

Aim: Studying, statistical processing and classification of complications that arose after breast augmentation with silicone gel implants.Material and methods. Complex clinic-radiological examination of 590 women after a breast augmentation with silicone gel implants was performed. Various complications after breast augmentation were diagnosed in 223 (37.8%) cases. Radiology examination included X-ray mammography, ultrasound and magnetic resonance imaging (X-ray, US and MRI).Results. The analysis of the data obtained allowed us to divide all the identified complications of breast augmentation into 3 groups depending on the etiology and pathogenesis of their occurrence.Conclusion. The proposed classification of complications of breast augmentation using silicone gel implants, based on their etiology and pathogenesis, will allow to choose the optimal treatment method predicting its efficiency.
Doppler twinkling artifact: physical mechanisms and place in diagnostic practice. State of the art
Authors: Gromov A. I. , Sapozhnikov O. A. , Kaprin A. D.
Published: January 2023

The twinkling artifact has been known to specialists in ultrasound diagnostics since 1996. However, until now there is no understanding of the reasons for its appearance, and the place of its application in diagnostics.

Material and methods. Electronic databases (PubMed, E-library, Web of Science) were searched studies using the keyword – “twinkling artifact”. The scientific publications on the Doppler twinkling artifact from the moment of the first reports about its existence is systematized and analyzed. The authors' own developments on this topic are presented. Modern views on this phenomenon and its place in ultrasound diagnostics are described. An explanation of the physical mechanisms of this phenomenon is given.

Results. Recommendations are formulated for practitioners on changing the settings of an ultrasound scanner in order to increase twinkling artifact detectability. The directions of using the artifact to obtain additional diagnostic signs of pathological changes, which currently include the diagnosis of nephro-, uretero- and choledocholithiasis, are determined.

Conclusions. The high efficiency of the use of the twinkling artifact for the diagnosis of small kidney stones, comparable with the capabilities of computed tomography, has been shown.
Radiofrequency thermoablation (RFA) in kidney cancer patients
Authors: Stepanova Yu. A. , Zhavoronkova O. I. , Gavrilov Ya. Ya. , Chekhoeva O. A. , Gritskevich A. A. , Glotov A. V.
Published: January 2023

The aim: to evaluate the own direct results of the RFA of kidney tumors in A.V. Vishnevsky National Medical Research Center of Surgery.Materials and methods. The study included the results of examination and treatment of 22 patients with kidney tumors treated at A.V. Vishnevsky National Medical Center of Surgery (16 men and 6 women aged 40 to 81, mean age 61.5 years). All patients underwent preoperative ultrasound, MSCT with contrast enhancement., Patients underwent RFA of kidney tumors using the Radionics Cool-Tip ® Ablation System (USA) at various stages of treatment In the postoperative period, all patients underwent MSCT monitoring with contrast enhancement and ultrasound with duplex scanning, as well as ultrasound with contrast enhancement – in 7 patients and MRI with contrast enhancement on the first day after the intervention – in 5 patients. Dynamic follow-up was performed in the postoperative period from 3 to 60 months (median 17.8 months).Results. Depending on the surgical tactics, the patients were divided into two groups: the first (16 patients) – RFA was performed as the first independent stage of treatment; the second (6 patients) – RFA was performed as a staged treatment for kidney resection.The tumor was solitary in 19 patients of both groups, multiple – in 3. In tumors of the first group, with sizes exceeding 30.0 mm in diameter, a positive effect was obtained from the manipulation: no progression of the tumor was detected during dynamic observation. These patients underwent 2 to 3 RFA sessions. In tumors of the second group, the size did not exceed 30.0 mm, 2 to 4 sessions (on average 3 sessions) of RFA were performed, which was due to multiple lesions in 3 cases.The use of RFA in the treatment of patients with small kidney cancer in patients with concomitant diseases that do not allow for radical treatment, made it possible to obtain a relapse-free period of an average of 16.5 months. The use of RFA, as a stage in the treatment of primary multiple kidney cancer, showed a relapse-free period of an average of 21.2 months.Conclusion. The use of radiofrequency ablation in the treatment of kidney cancer patients can significantly expand the scope of surgical care, both in the case of patients with concomitant diseases that do not allow a significant amount of surgical intervention, and in the treatment of patients with primary multiple cancer of both kidneys as a stage treatment.
Management Perception of Digital Innovation: How Innovation Managers Perceive Digital Innovation in their Organisational Setting in Austria
Authors: Granig Peter , Hilgarter Kathrin
Published: January 2023

The rapid advancement of digital technologies has fundamentally shaped business in all sectors. Therefore, organisations must find strategies for responding to this advancement through digital innovation. In this context, the perspective of innovation managers and their perception of digital innovations in practise are underrepresented in previous research. Therefore, using semi-structured interviews, this study examines the perceptions of 13 innovation managers towards digital innovation and organisational factors in Austria. Results showed that digital innovation is perceived positively and has the potential to solve current societal, economic and environmental challenges. However, a proactive strategy is required for organisations. Finally, in terms of conductive factors, agility, mindset adjustment, innovation culture, open innovation approach and ecosystem usage appear to be important in practise in Austria. This suggests that managers who are aware of the impact of digital innovation and consider conductive factors in their leading strategy may be successful in handling digital innovation.
EVALUACIÓN FÍSICO QUÍMICA Y PROTEICA DEL POLEN ALMACENADO EN COLMENAS DE Melipona seminigra, AMAZONAS, BRASIL.
Authors: BATISTA DA SILVA Antonio , ALARCÓN CASTILLO Teresa , SIMAS TEIXEIRA Maria Francisca , FIGUEIREDO PORTO Ana Lucia
Published: January 2023

Bee’s pollen comes from the flowers of several species of plants. The grains are transported by worker bees to their nests (honeycombs) to be used as a source of nutrients. The objective of this study was to evaluate the microbiological control, the physical chemical composition and to analyze macro and micro minerals, as well as amino acids in dehydrated pollen hives of Melipona seminigra, in rainy periods (PLL) and dry periods (PS) in Amazonas, Brazil.The physical-chemical composition (proteins, lipids, carbohydrates, fibers and ashes) was performed by the AOAC methodology. In meliponícola pollen it was detected the presence of proteins (35,97 - 36,37 g/100g), lipids (22,37 - 29,66 g/100g), ashes (4,46 - 2,83 g/100g) and ratio carbon/nitrogen (8,94 - 8,28 g/100), also minerals like copper, iron, manganese, calcium, potassium, magnesium and phosphorus were present. In the pollen of the indigenous bees, both non-essential and essential amino acids were found. The results showedthat the meliponícola pollen did not present any contamination for bacteria and fungi that comply with the Brazilian legislation. The physical-chemical analysis confirmed that pollen has nutritional amounts that can be added to other ingredients, providing enrichment of fibers, minerals and proteins to foods at different ages of the population
Public hospital pharmacists' perceptions and knowledge of antibiotic use and aresistance: a cross-sectional study
Authors: Hakami Abdullah , Shutayfi Faisal , Madkhali Ahmed , Hakami Omrah , Ageeli Taibah , Khormi Manal , Mahawesh Hind , Namazi Fatemah , Muharraq Fatimah , Shamakhi Khulod
Published: January 2023

Objective: This study aimed to assess public hospital pharmacists' perceptions and knowledge, of antibiotic usage and resistance in Saudi Arabia.
Methods: This was a cross-sectional study design that was conducted on registered and pre-registered pharmacists working at public hospitals in Riyadh using a self-administrated printed questionnaire. The questionnaire consisted of questions about demographics, knowledge, and perception of the pharmacists.
Results: There were 313 pharmacists enrolled in this study, and there was no correlation between knowledge and either sex (p = 0.4) or age (p = 0.2), but there was a significant correlation between the pharmacy unit and the level of knowledge (p < 0.001). There were 93.6% of pharmacists who agreed and strongly agreed that antibiotics are overused and antibiotic resistance is a significant problem in the hospital. The most reported factor affecting the recommendation of the pharmacist was variability in the types and availability of antibiotics in the hospital.
Conclusion: The pharmacists of public hospitals in Riyadh showed good perception and overall knowledge regarding the use of antibiotics and antibiotic resistance.
MEDİKAL TEDAVİYE DİRENÇLİ KRONİK MİGREN HASTALARINDA BOTULİNUM TOKSİN TİP A UYGULAMASINDAKİ DENEYİMLERİMİZ
Authors: TERTEMİZ Oktay Faysal , TEPE Nermin
Published: January 2023

Amaç: Botulinum toksini tip A, kronik migrenin önleyici tedavisi için iyi tolere edilen bir seçenek olarak kabul edilmiştir. Bu çalışmanın amacı, kronik migren tedavisinde botulinum toksin uygulamasının baş ağrısı atak sıklığını, atak şiddetini ve uygulama sayısı artıkça etkinliğinin nasıl olacağını değerlendirmektir.
Gereç ve Yöntemler: Medikal tedaviye dirençli kronik migren hastalarından üç ay arayla botulinum toksin A yapılmış hastalardan toplam 29 hastanın verisi toplandı. Demografik verileri, tedavi öncesi aylık atak sıklığı, atak şiddeti, ilacın etkinlik süresini karşılaştırıldı.
Bulgular: Botulinum toksini tip A uygulama öncesi ile üçüncü uygulama sonrası karşılaştırıldığında, migren ataklarının aylık sıklığında (21.7 'e karşı 11.4 gün) ve Nümerik derecelendirme skorunda (9.2 'e karşı 5.6) önemli ölçüde iyileşme bulundu (p<0.001). Botulinum toksin etkinliğinin süresi ilk uygulama sonrasında ortalama 3 ay 18 gün, ikinci uygulama sonrasında 3 ay 7 gün, üçüncü uygulama sonrasında 4 ay olarak bulundu.
Sonuç: Bu çalışma, Botulinum toksini tip A uygulanan kronik migrenli hastalarda baş ağrısı atak sıklığında ve şiddetinde azalma gösterdi. Uygulama sayısı artıkça hastaların ağrısız gecen sürelerinde de artış bulundu.
Motivasi Orang Tua dalam Pembentukan Karakter Anak
Authors: Siregar Lis Yulianti
Published: January 2023

The role of parents in educating children in a household is very important because it is in the household that a child initially gets guidance. The task of parents is as the primary and first teacher or educator for their children in fostering and developing character for their children. The character building of the child must be started as early as possible even when the child is still in the womb. Instilling good character values in children from an early age will make them strong, responsible, honest, independent, polite, and behave in accordance with Islamic teachings and have a good personality and good morals.
Bimbingan dan Konseling dalam Perspektif Konseling Posmodernisme
Authors: Hidayat Arifin Hidayat
Published: January 2023

Perkembangan ilmu pengetahuan semakin menstimuli akademisi untuk mengkaji, menelaah, meneliti, dan memferivikasi berbagai ilmu-ilmu baru yang didapat, dan menjadi sebuah teori atau temuan baru, tidak terkecuali para ilmuwan konseling menemukan teori baru, salah satunya teori konseling posmodernisme atau yang sering dikenal dengan Solution Focused Brief Counseling (SFBT). SFBT didasarkan pada asumsi optimis bahwa orang yang sehat dan kompeten memiliki kemampuan untuk membangun solusi yang dapat meningkatkan kehidupan mereka. Ini berarti bahwa SFBT berfokus membicarakan bagaimana mencari solusi daripada membicaraan tentang permasalahan, salah satunya dapat mengatasi perilaku prokrastinasi yang sering dilakukan oleh mahasiswa. Pendekatan SFBT ini memberikan kesempatan secara mandiri kepada konseli untuk belajar menyelesaikan masalah-masalah yang dihadapi, dalam hal ini antara konselor dan konseli tidak ada yang lebih dominan, tetapi bersama-sama mencari solusi untuk permasalahan konseli agar tercapainya tujuan yang di inginkan. Penelitian ini menggunakan metode deskriptif.Pengumpulan data dilakukan denganm.Hasil penelitian menunjukkanbahwa pendekatan SFBT salah satu teori terbaru yang ditemukan yang pandangan dasarnya adalah setiap masalah ada solusi, hanya butuh keseriusan dalam mencari solusi-solusi dari masalah yang ditemukan. Pendekatan ini cukup efektif dilakukan pada konflik yang terjadi pada remaja, dan masalah-masalah pribadi yang membutuhkan solusi.
Pencegahan Kecenderungan Narsistik Melalui Kontrol Diri
Authors: Muliani Nurintan
Published: January 2023

AbstractSelf-existence can be done by individuals in various ways so that they can be seen by others. This is a natural thing, but is said to be unnatural when it is done excessively so that it can trigger individuals to experience narcissistic tendencies. Narcissistic tendencies are excessive self-love of oneself without regard to others. Individuals who have narcissistic tendencies will experience anxiety, because they will always try to make themselves look unique, special, and perfect in the eyes of the beholder. If this tendency is allowed to become an abnormal or unhealthy personality. Self-control is one way to prevent an individual's narcissistic tendencies from increasing over time. Self-control is an individual's ability to control, structure, and guide behavior in certain situations that will result in positive behavior. Here the author explains that self-control can prevent narcissistic tendencies seen from the existing literature in the form of journals related to narcissistic tendencies and self-control. Keywords: Narcissistic, Self-control AbstrakEksistensi diri dapat dilakukan individu dengan berbagai macam cara agar dapat terlihat orang lain. Ini merupakan hal yang wajar, namun dikatakan tidak wajar ketika dilakukan secara berlebihan sehingga dapat memicu individu mengalami kecenderungan narsistik. Kecenderungan narsistik merupakan self-love yang berlebihan kepada diri sendiri tanpa memperdulikan individu yang lain. Individu yang memiliki kecenderungan narsistik akan merasakan gelisah, karena mereka akan selalu menampilkan usaha untuk membuat diri mereka terlihat unik, istimewa, dan selalu dikagumi di mata orang yang memandang. Jika kecenderungan ini dibiarkan akan menjadi kepribadian abnormal atau tidak sehat. Kontrol diri merupakan salah satu cara agar kecenderungan narsisitik individu tidak meningkat seiring waktu. Kontrol diri adalah kompetensi individu dalam mengontrol, menyusun, dan membimbing perilaku pada situasi tertentu yang akan menghasilkan perilaku yang positif. Berikut penulis memaparkan bahwa kontrol diri dapat mencegah kecenderungan narsistik dilihat dari literatur-literatur yang ada berupa jurnal-jurnal yang berkaitan dengan kecenderungan narsistik dan kontrol diri.
Implementasi Bimbingan Konseling Islam dalam Stres
Authors: Daulay Maslina
Published: January 2023

Bagi ummat Islam memilikisi sifat religious yang kuat sehingga bimbingan dan konseling Islam akan lebih efektif diimplementasikan dalam mengatasi segala permasalahan kehidupan. Konsep bimbingan dan konseling Islam yaitu suatu layanan yang tidak hanya mengupayakan mental yang sehat dan hidup sejahtera, melainkan menuntun ke arah hidup yang sakinah, bathin merasa tenang dan tentram karena selalu dekat dengan Allah SWT. Konsep dekat dengan Allah SWT merupakan pengobat permasalahan yang tepat dalam kehidupan. Bimbingan dan konseling Islam merupakan proses pemberian bantuan terhadap individu agar mampu hidup selaras dengan ketentuan dan petunjuk Allah, sehingga dapat mencapai kebahagiaan hidup di dunia dan di akhirat. Dalam pelaksanaan pemberi  bantuan, seorang pembimbing tidak boleh memaksakan kehendak atau mewajibkan  untuk mengikuti kehendak yang disarankan, melainkan sekedar memberi arahan yang bersifat kejiwaan individu. Stress adalah suatu bentuk gangguan emosi yang disebabkan adanya tekanan yang tidak dapat diatasi oleh individu. Stres terjadi jika seseorang dihadapkan dengan peristiwa yang mereka rasakan sebagai mengancam kesehatan fisik dan fisikologisnya. Peristiwa stres dapat diselesaikan dengan cara pengaplikasian bimbingan dan konseling Islam yaitu dengan mengerjakan sholat dengan baik, berzikir kepada Allah, berdo’a dengan rendah hati,membaca al-Qura’an
Dakwah Moderat Pendakwah Nahdatul Ulama (Analisis Konten Moderasi Beragama Berbasis Sejarah)
Authors: Syaifuddin Syaifuddin , Azis Mohd Ali
Published: January 2023

Makalah ini bertujuan untuk mendeskripsikan hasil dakwah moderasi yang berbasis sejarah, dengan menganalisis konten dari beberapa tokoh NU sebagai pegiat dakwah yang ada dimedia sosial (youtube), dimana para  pegiat dakwah dituntut untuk menyebarkan nilai-nilai moderasi islam sehingga tercipta keharmonisan dalam kehidupan masyarakat dan untuk menampilkan keislaman yang rahmatan lil alamin yaitu sebagai bentuk kasih sayang kepada seluruh manusia.  Penelitian ini menggunakan analisis konten yang bertujuan untuk mengungkap dakwah moderasi agama yang berbasis sejarah bagi para pendakwah NU. Adapun Subjek dalam penelitian ini adalah K.H. Muhammad Muwafiq (Gus Muwafiq), K.H Ahmad Baha’udin Nursalim (Gus Baha’), dan Dr. Habib Muhammad Luthfi Bin Ali Yahya. Sumber data penelitian ini merupakan video ceramah tentang dakwah moderasi beragama yang berbasis sejarah di YouTube. Metode pengumpulan data dari isi video yang berasal di media sosial (Youtube) setelah itu melakukan coding untuk melakukan pemilihan yang sesuai. Sedangkan dalam analisis data penulis menafsirkan dakwah yang disampaikan oleh para pendakwah melalui media sosial (YouTube). Adapun hasil dari penelitian terhadap dakwah moderasi yang disampaikan oleh ulama-ulama NU adalah pentingnya menanamkan dan menyebarkan moderasi dalam Islam agar tercipta ketenangan dalam beragama dan  kenyamanan dalam bernegara.
Youtube Sebagai Media Komunikasi Dalam Berdakwah Di Tengah Pandemi
Authors: Handayani Ricka
Published: January 2023

Tujuan penelitian ini adalah untuk mengetahui pemanfaatan youtube sebagai media komunikasi dakwah di kota Padangsidimpuan. Penelitian menggunakan pendekatan kualitatif yang ebrsifat deskriftif. Teknik pengumpulan data yang digunakan pengumpulan dokumentasi dan wawancara yang dilakukan dengan menyebarkan link google formulir untuk diisi oleh para informan. Teknik analisis data yang digunakan reduksi data, display data, dan penarikan kesimpulan yang bersifat deskripsi.Hasil yang diperoleh dari hasil wawancara adalah yang menjadi daya tarik pendakwah untuk membuat konten youtube adalah untuk menyebarkan dakwah dan menyampaikan ilmu. Karena sesuai dengan perkembangan zaman yang semakin serba digital, pendakwah dituntut untuk menguasai teknologi dan media dalam berdakwah.Youtube adalah salah satu media yang sejalan dan mendukung dalam penyampaian dakwah yang efektif. Karena visualnya, beragam gaya dan pola, kemudahannya akses, dan durasi yang  lama membuat youtube menjadi media yang paling diminati para pembuat konten. inilah yang menjadi kelebihan youtube dibandingkan dengan media sosial lainnya. Youtube juga lebih efisien dalam penghematan biaya, tempat dan waktu. Dengan youtube, ceramah dari para pendakwah dapat dijangkau oleh masyarakat luas dimanapun dan kapanpun. Kata kunci: Youtube, Media Komunikasi, dan Dakwah
Career Development Center Berbasis Social Media Menggunakan Algoritma Gale-Shapley dan Framework Codeigniter
Authors: Syaripudin Rifky , Komarudin Oman , Purnamasari Intan
Published: January 2023

Banyaknya perusahaan yang berminat mencari tenaga kerja dari mahasiswa maupun alumni sebuah Perguruan Tinggi, terutama pada mahasiswa dan alumni yang memang memiliki keahlian khusus untuk mengisi posisi pada lowongan yang disediakan oleh perusahaan tersebut. Namun, apabila suatu Perguruan Tinggi tertentu belum memiliki sistem yang dapat menangani permasalahan itu. Informasi lowongan yang masuk ke pihak administrasi pun hanya akan ditempelkan di dinding pengumuman yang dirasa belum cukup untuk memberitahukan kepada mahasiswa dan alumni pencari kerja. Proses metodologi penelitian yang digunakan dalam pembuatan penelitian ini adalah dengan menggunakan metode SDLC (Software Development Life Cycle) dengan model Prototipe. Desain pemodelan menggunakan UML (Unified Modelling Language) yang diimplementasikan menggunakan Algoritma Gale-Shapley dan Framework Codeigniter dengan tools IDE Netbeans 7.4. Hasil aplikasi yang dirancang memiliki fungsi utama sebagai situs jejaring sosial pencarian kerja. Aplikasi ini dapat membantu mahasiswa menemukan lowongan yang cocok dengan keahlian yang dimiliki menggunakan fasilitas rekomendasi lowongan sedangkan perusahaan dapat lebih mudah mencari calon tenaga kerja dengan fasilitas rekomendasi calon pekerja. Aplikasi ini juga memudahkan mahasiswa dan perusahaan untuk berinteraksi secara langsung baik dengan saling berkirim pesan ataupun saling berkirim catatan. AbstractThe number of companies that are interested in seeking employment from students and alumni of a university, especially students and alumni who do have special skills to fill positions in the vacancies provided by the company. However, if a certain university does not yet have a system that can handle the problem. Information on vacancies that enter the administration will only be posted on the announcement wall which is deemed insufficient to inform students and alumni of job seekers. The research methodology process used in the making of this research is to use the SDLC (Software Development Life Cycle) method with the prototype model. The modeling design uses UML (Unified Modeling Language) which is implemented using the Gale-Shapley Algorithm and Codeigniter Framework with Netbeans 7.4 IDE tools. The results of the designed application have the main function as a job search social networking site. This application can help students find vacancies that match their expertise using the vacancy recommendation facility, while companies can more easily find prospective workers with the facility for recommending prospective workers. This application also makes it easier for students and companies to interact directly, either by sending messages to each other or sending notes to each other.
Fase Pembentukan Perubahan Seksual Tokoh Utama Film Serial TV Transit Girls Karya Masato Maeda
Authors: Paramitha Dinda , Puspitasari Diana , Kadafi Muammar
Published: January 2023

Orientasi seksual kaum homoseksual yang berbeda dari kelompok heterogen memicu problematika identitas dalam dirinya dan dalam relasi sosial. Proses yang dilalui oleh pelaku homoseksual dalam menghadapi kendala untuk mendapatkan legitimasi di masyarakat memengaruhi perkembangan identitas dirinya. Penelitian ini bertujuan untuk mengetahui gambaran tentang proses pembentukan identitas seksual, sehingga dari identitas seksual dapat mengindentifikasi peran seksualnya. Penelitian ini adalah penelitian kepustakaan dengan jenis penelitian kualitatif deskriptif. Sumber data adalah film Transit Girls karya Masato Maeda yang rilis tahun 2015. Analisis data menggunakan teori perkembangan identitas homoseksual milik Vivienne Cass. Hasil penelitian ini menunjukkan bahwa tokoh Sayuri dan Yui dapat mencapai enam tahapan perkembangan identitas homoseksual yang membuat mereka merasa nyaman dan telah menerima seutuhnya menjadi seorang lesbian. Penelitian ini diharapkan dapat menjadi pengetahuan baru tentang proses terbentuknya seorang individu homoseksual. Umumnya, masyarakat  hetero menjadi pengaruh terbesar terhadap proses perkembangan identitas individu tersebut. Hal ini berkaitan dengan keberhasilan menjadi seseorang dengan identitas yang baru atau justru kembali ke identitas yang lama seolah tergantung pada hal tersebut. Identitas tersebut juga yang nantinya akan berpengaruh terhadap kehidupan sosial mereka.

Kata kunci: perkembangan identitas homoseksual; perubahan seksual; transit girls; Vivienne Cass.
Multidisciplinary Structural Optimization of Low-Pyroshock Separation Nuts for Aerospace
Authors: Wu Yadong , Lu Yufan , Yang Hao , Liu Yichang , Zhou Mingdong
Published: January 2023

This paper presents a multidisciplinary structural optimization approach to design separation nuts with low-level pyroshock responses for aerospace. A parametric modeling method is developed to automatically construct a multibody finite element model for separation nuts according to the predefined structural parameters. A new explicit dynamics analysis workflow tailored to separation nuts is proposed to simulate the pyroshock environment efficiently. Based on a backpropagation neuron network technique, certain surrogate models are established to describe the equivalence relationship between the structural parameters and the multidisciplinary structural responses including the pyroshock, the bending stiffness, and the structural weight. Finally, a pyroshock minimization problem with the constraints of structural weight and bending stiffness is solved by using a genetic algorithm, resulting in an optimized low-pyroshock separation nut design. The comparison between the optimized structure and a reference structure shows the effectiveness of the proposed approach.
Sunvoyager: Interstellar Precursor Probe Mission Concept Driven by Inertial Confinement Fusion Propulsion
Authors: Long Kelvin F.
Published: January 2023

The Sunvoyager is a concept mission for a space probe that can be sent outside of the solar heliosphere to a distance of 1000 AU in a trip time of only 3.4 years traveling at speeds of 1500 km/s or 325 AU/year. It is an advanced Voyager flyby probe, but the concept design is unique in that it would utilize an inertial confinement fusion propulsion engine driving a gram-scale capsule mass at 10 Hz pulse frequency using 5 MJ laser driver energy reaching the capsule. Such a design may be possible in the latter part of the 21st century. The probe would carry a 100-ton scientific payload for the purpose of observations from the location of gravitational focal point, a dwarf planet flypast, and imaging of interstellar asteroids. Secondary science objectives would include measurements of the interstellar medium, measurements of astrometry, and the search for extraterrestrial power and propulsion emission signatures. The propulsion engine is characterized by 23 kN thrust, 54 GW jet power, and 147 kW/kg specific power. This paper outlines the science goals in addition to calculations that scope out the design space using a recently constructed propulsion performance and mission analysis numerical tool called HeliosX.
Variably Premixed Rotating Detonation Engine for Evaluation of Detonation Cycle Dynamics
Authors: Ayers Zachary M. , Athmanathan Venkat , Meyer Terrence R. , Paxson Daniel E.
Published: January 2023

A variably premixed rotating detonation engine using gaseous hydrogen and air reactants is introduced to enable investigation of key cycle processes while varying the homogeneity of the reactant inlet conditions. Two chamber configurations are investigated, the first with reactants filling the entire span of a straight annular channel and the second with a slightly larger channel and a backward-facing step. The first configuration permits both premixed and non-premixed fuel injection, enabling mixing quality modulation. The second configuration is operated only at fully premixed conditions. Operating modes and detonation wave speeds are characterized using exhaust-plume imaging, while the chamber heat release field is captured by transverse imaging through a transparent outer body. Tests using the first configuration were characterized by unstable counterpropagating modes with low detonation wave speeds regardless of the state of premixing, while the second configuration rendered single-wave behavior with wave speeds up to 86% of the Chapman–Jouguet velocity. Comparisons with a simple computational fluid dynamics model of the second configuration indicate that reactant preheating significantly influences the detonation wave topology, highlighting the potential utility of the test platform for isolating key physics associated with the effects of reactant premixing, preheating, and chamber geometry on rotating detonation engine operation.
Investigation of Aerodynamic Support Interference for Testing a Semispan T Tail Aircraft Model
Authors: Mamou Mahmoud , Broughton Cabot A.
Published: January 2023

High-fidelity computational fluid dynamics (CFD) flow simulations were carried out to assess the sources of aerodynamic support interference of an aircraft half-model with a T-tail empennage mounted in a wind tunnel in an attempt to improve how well a semispan model can represent the corresponding full-span aircraft. The Bombardier research aircraft configuration (BRAC) model was used, which consists of a fuselage, a fuselage to wing fairing, a cruise wing with flap fairings, an engine nacelle and pylon, a vertical tail, and a horizontal stabilizer (HSTAB). The standard half-model support used at the National Research Council of Canada’s 1.5 m trisonic wind tunnel consists of a wall-mounted splitter plate to remove a sizable portion of the upstream tunnel wall boundary layer and a two-dimensional peniche sandwiched between the model symmetry plane and the splitter plate. CFD simulations of the BRAC model mounted in the wind tunnel were performed using the Menter shear stress transport turbulence model at a Mach number of 0.2. The CFD results for the standard (baseline) mounting arrangement compared favorably well with the half-model experimental data. The BRAC CFD model was then modified to provide reference “full-span” data and to examine several alternate model mounting arrangements. All simulations were compared with the ideal full-span reference simulations. Significant disturbances were found to be induced by the reflection plane boundary layer and primary horseshoe vortex on the flowfield surrounding the HSTAB, which had a direct impact on the measured overall model forces and moments.
Impact of Low-Order Modeling on Aeroelastic Predictions for Very Flexible Wings
Authors: Riso Cristina , Cesnik Carlos E. S.
Published: January 2023

This paper investigates the ability of low-order structural and aerodynamic models to predict geometrically nonlinear aeroelastic behaviors associated with large wing deflections. The study considers the Pazy wing, a very flexible wing developed at the Technion—Israel Institute of Technology for geometrically nonlinear aeroelastic benchmark studies in low-speed flow. The low-order model of the wing consists of a geometrically nonlinear beam with properties derived from a built-up finite element model coupled with potential flow strip theory with tip loss correction to account for three-dimensional aerodynamic effects. The beam structural model predicts the wing modal characteristics and static response as accurately as the parent built-up finite element model while using much fewer degrees of freedom and showing higher numerical stability. The low-order aeroelastic model predicts the wing static response for various flow conditions with accuracy comparable to a higher-order model based on the vortex-lattice method. Flutter onset points differ from reference solutions by up to 8% with lower differences in the presence of larger wing deflections. These differences arise from approximating three-dimensional unsteady aerodynamic effects using tip loss corrections, while reducing the built-up structure to a beam impacts the flutter results slightly. The insights from this study will inform appropriate-fidelity modeling choices for aeroelastic analysis of very flexible wings in the design and optimization of energy-efficient, high-aspect-ratio-wing aircraft.
Risk-Based Method for Determining Separation Minima in Unmanned Aircraft Systems
Authors: Vila Carbó Juan A. , Balbastre Tejedor Juan V. , Morcillo Pallarés Pablo , Yuste Pérez Pedro
Published: January 2023

Risk assessment is a key issue in enabling the use of unmanned aircraft systems (UASs) in nonsegregated areas, especially in very low-level airspace and urban areas. The specific operations risk assessment (SORA) methodology represents an important milestone in performing the risk assessments required by aviation safety agencies to UAS operators in specific operations. However, the SORA is a qualitative method used for UASs operating inside a well-bounded operational volume. This paper proposes a quantitative method that can not only be used in a closed volume but also in an airspace shared by several UAS missions and even general aviation. The basis for this is providing a separation volume (a “bubble”) to prevent collisions that is calculated using a risk-based approach. The method consists of setting a target level of safety, which is accomplished using a tradeoff between strategic and tactical mitigations. A probabilistic methodology for performing quantitative risk assessment of strategic and tactical mitigations is provided, and the dependence of the separation distance is carefully analyzed. All factors affecting the separation distance are identified, and their contributions to collision risk are probabilistically estimated. The method takes into account specific factors relating to UASs such as trajectories, separation methods, and performance. As a result, the method allows numerical determination of a separation distance for a given target level of safety and an operational scenario.
Spacecraft Rendezvous in Closed Keplerian Orbits Using Constant Radial Thrust Acceleration
Authors: Kaki Siddarth , Akella Maruthi R.
Published: January 2023

An analytical solution for spacecraft rendezvous within closed Keplerian orbits is presented using continuous radial thrust. The two spacecraft are assumed to be initially placed within the same closed orbit with arbitrary phase angle separation. The target spacecraft is assumed to always remain in the same initial orbit. The chaser vehicle, however, uses a judiciously designed maneuver sequence comprising constant-acceleration radial thrust phases interspersed with coast phases. Importantly, the proposed maneuver design is analytically characterized by one or two (depending on whether the parking orbit is circular or elliptical, respectively) nonlinear algebraic equations that determine the time intervals for the different phases. The set of initial conditions from which rendezvous is feasible is also characterized. Additionally, orbit rotation (that is, changing the orbit argument of periapsis in plane) is also demonstrated for the elliptical parking orbit case. Finally, the remarkable emergence of the golden and silver ratios, as well as their connections to Kepler’s triangle, is demonstrated for a specific sequence of thrust and coast arcs.
High-Speed Fluid-Structure Interactions on a Compliant Panel Under Shock Impingement
Authors: Vasconcelos Paulo B. , McQuellin Liam P. , Talluru Krishna M. , Neely Andrew J.
Published: January 2023

This paper reports experimental results of fluid/structure interactions induced by shock impingement on a clamped-free/clamped-free compliant panel in a Mach 5.8 Ludwieg tube. A shock generator is used to statically impinge a shock on the panel with the aim of producing flow-induced vibrations. In turn, these vibrations create an aeroelastic coupling between the panel and the flowfield, which is dominated by the shock-wave/boundary-layer interactions. The influence of the structural compliance and shock impingement strength is assessed by testing a nominally rigid panel and compliant panels with thickness-to-length ratios of 0.0034 and 0.0068 with a shock generator at flow deflection angles of 0, 2, 3, 8, and 10 deg. One of the primary findings of the present work is that the aeroelastic response of the panel tends to shift from a structurally dominated to a fluid-dominated regime, which is sustained by either the freestream fluctuations or the fluid/structure coupling, depending on the structural compliance and shock impingement strength and location. This work is of fundamental nature, and its main goal is to analyze the interactions between high-speed flow and a thin compliant panel of canonical geometry. However, studies like this are crucial to characterize those complex couplings and provide experimental data that can help enhance the accuracy of aeroelastic modeling tools that feed into the design process of supersonic and hypersonic airframes.
Evaluating Dynamic Stall-Onset Criteria for Mixed and Trailing-Edge Stall
Authors: Sudharsan Sarasija , Narsipur Shreyas , Sharma Anupam
Published: January 2023

We evaluate two leading-edge-based dynamic stall-onset criteria (namely, the maximum magnitudes of the leading-edge suction parameter and the boundary enstrophy flux) for mixed and trailing-edge stall. These criteria have been shown to successfully predict the onset of leading-edge stall at Reynolds numbers of [Formula: see text], where the leading-edge suction drops abruptly. However, for mixed/trailing-edge stall, leading-edge suction tends to persist even when there is significant trailing-edge reversed flow and stall is underway, necessitating further investigation into the effectiveness of these criteria. Using wall-resolved large-eddy simulations and the unsteady Reynolds-averaged Navier–Stokes method, we simulate one leading-edge stall and three mixed/trailing-edge stall cases at Reynolds numbers of [Formula: see text] and [Formula: see text]. We contrast the progression of flow features such as trailing-edge separation and vortex formation across different stall types and evaluate the stall-onset criteria relative to critical points in the flow. We find that the criteria nearly coincide with the instance of leading-edge suction collapse and are reached in advance of dynamic stall vortex formation and lift stall for all four cases. We conclude that the two criteria effectively signal dynamic stall onset in cases where the dynamic stall vortex plays a prominent role.