bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of Hydrothermal Alteration and Mineralization on the Paleomagnetic Properties of Rocks from IODP Expedition 376 at Brothers Volcano
Authors: Tontini F. Caratori , Turner G. M. , Reyes A. G. , Speranza F. , Tivey M. A. , Massiot C. , de Ronde C.E.J. , Humphris S. E. 
Published: April 2023

AbstractThe 3-D subseafloor architecture of submarine hydrothermal systems is largely unknown, particularly at arc volcanoes. The alteration of volcanic rocks in these systems produces dramatic changes in their magnetic properties. Here, we present the first comprehensive study of paleomagnetic measurements from oriented samples of hydrothermally altered dacites from Brothers volcano (Kermadec arc), drilled during International Ocean Discovery Program (IODP) Expedition 376. These data have enabled insight into the progressive evolution of magnetic minerals in subseafloor volcanic rocks affected by variable types and degrees of hydrothermal alteration in response to varying fluid temperatures, chemistry, and associated mineralization; from initial chloritization typical of relatively low-temperature interaction with seawater to extremely altered rocks affected by higher-temperature, very acidic magmatic fluids.Hydrothermally altered samples show a significant reduction in natural remanent magnetization intensity (10–4 to 10–2 A/m) compared with unaltered samples (1–10 A/m), suggesting that primary titanomagnetite grains are destroyed during the hydrothermal alteration process. Except for a small region in proximity to the mineralized stockwork zone, no chemical remanent magnetization is observed in association with hydrothermal alteration, consistent with the widespread formation of diamagnetic and/or paramagnetic minerals such as pyrite, rutile, and leucoxene, which do not carry any natural remanent magnetization.Demagnetization experiments show that most of the oriented samples possess a stable characteristic remanent magnetization induced by the residual primary magnetic minerals formed at the time the rocks cooled on the sea floor. Partially chloritized dacites, however, are characterized by large magnetic susceptibilities, low Koenigsberger ratios, and very low magnetic coercivities, consistent with initial dissolution of smaller, singledomain magnetic grains, indicating that intensely hydrothermally altered rocks are better paleomagnetic indicators than initially chloritized samples at the periphery of the hydrothermal systems.The significant magnetic contrast between fresh and hydrothermally altered rocks, in addition to a thick layer (&gt;300 m) of demagnetized rocks observed at Brothers volcano, confirms the empirical results that magnetic anomalies are important geophysical tools to determine the geometry of hydrothermal systems at submarine arc volcanoes.
Estado del arte. Modos de operación y estrategias de control para sistemas de refrigeración solar
Authors: Diaz Juan J. , Fernández José A. 
Published: April 2023

El presente trabajo de revisión tiene como objetivo principal proporcionar una visión general sobre los modos de operación y las principales estrategias de control y regulación diseñadas e implementadas para la operación de sistemas térmicos de frio solar, destacando sus principales características, ventajas e inconvenientes. Además, se detallan las condiciones generales de contorno que rigen el funcionamiento de las máquinas de absorción de LiBr-H2O de simple y doble efecto accionadas por agua caliente, profundizando en los efectos o reacciones que se producen en este tipo de equipos con respecto a las variaciones que puedan ocurrir en las condiciones de funcionamiento del sistema.
Support after stillbirth: Findings from the Parent Voices Initiative Global Registry Project
Authors: Ponce Hardy Vicki , Beedle Alexandra , Murphy Sam , Storey Claire , Aggarwal Neelam , Dandona Rakhi , Dev Alka , Doherty Patricia , Heazell Alexander , Kinney Mary , Nam Sara , Quigley Paula , Steen Sue , Vanotoo Linda A. , Leisher Susannah , Blencowe Hannah 
Published: April 2023

The need for respectful bereavement care following a stillbirth has been poorly recognised within global public health initiatives. To date, there has been no comprehensive cataloguing of providers that support parents after stillbirth, nor any review of the challenges they face. We aimed to identify providers (organisations and point persons) that support bereaved parents worldwide and to investigate the challenges they face.
A systematic global online search was conducted to identify providers of support after stillbirth. Subsets of providers were surveyed and interviewed. These were purposively sampled to achieve diversity in geography, organisation size and point person role. Challenges in providing support in six key areas – stigma, funding, reach, policy, workforce, and advocacy – were analysed thematically.
Overall, 621 providers from 75 countries were identified. No support providers were identified in 123 countries, and in the 6 countries that carry almost half of the global burden of stillbirths, only 8 support providers were found. Support providers faced challenges in accessing funding, reaching key populations, and training and retaining staff, while complex policies hampered bereavement care. Support providers were challenged by silence and stigma around stillbirth. Overcoming these challenges requires collaboration, effort, and political will at local and international scales.
Conocimiento y práctica sobre medidas preventivas frente al Covid 19 en comerciantes de venta de alimentos de primera necesidad del mercado de abastos de Huancavelica – 2021
Authors: Zea Montesinos César Cipriano , Reginaldo Huamani Rafael , Araujo Sánchez Cristhian Walter , Huaranccay Matamoros Tania 
Published: April 2023

Objetivo: Determinar la relación entre el conocimiento y la práctica de las medidas preventivas frente al COVID- 19 en comerciantes de venta de alimentos de primera necesidad del mercado de abastos Huancavelica, 2021. Metodología: Investigación de tipo básica, perteneciente al nivel correlacional, método inductivo, deductivo y estadístico, diseño no experimental, transeccional, la muestra estuvo conformado por 109 comerciantes, para medir el conocimiento se utilizó la técnica de encuesta y como instrumento un cuestionario, para medir la práctica se utilizó la técnica de observación y como instrumento una guía de observación. Resultados: El 36.7% (40) de comerciantes presentan conocimiento alto, pero solo el 9.2% (10) logran tener práctica buena; sobre el lavado de manos el 26.6% (29) de comerciantes tienen conocimiento medio y prácticas regulares; respecto al uso equipo de protección personal, el 47.7% (52) de comerciantes tienen conocimiento alto, pero presentan práctica regular; sobre el distanciamiento social, el 47.7% (52) de comerciantes tienen conocimiento alto y presentan práctica buena; respecto al uso de desinfectantes, el 33.9% (37) de comerciantes tienen conocimiento alto y esto refleja en su práctica buena; sobre el manejo de residuos sólidos, el 37.6% (41) de comerciantes tienen conocimiento medio, pero lograron tener una práctica buena. Conclusiones: No existe relación entre el conocimiento y la práctica de medidas preventivas frente al COVID 19 en comerciantes de venta de alimentos de primera necesidad del mercado de abastos de Huancavelica - 2021.
Ứng dụng mô hình học sâu trong phát hiện tấn công trinh sát mạng
Authors: Dung Nguyễn Thị , Quân Nguyễn Văn , Hùng Nguyễn Việt 
Published: April 2023

Tóm tắt— Ngày nay, cùng với sự phát triển nhanh chóng của Internet là thực trạng gia tăng các cuộc tấn công mạng cả về quy mô lẫn số lượng. Trong đó, tin tặc có thể sử dụng nhiều phương pháp tấn công khác nhau, nhưng tất cả thường diễn ra theo quy trình nhất định, bắt đầu từ bước trinh sát mạng. Chính vì vậy, để kịp thời phát hiện sớm các hành vi xâm nhập mạng trái phép, đặc biệt là từ giai đoạn trinh sát mạng, cần triển khai các giải pháp, hệ thống phát hiện xâm nhập ứng dụng với những kỹ thuật phát hiện tiên tiến. Trên thực tế, các hệ thống phát hiện xâm nhập mạng (Intrusion Detection System - IDS) thường dựa trên các dấu hiệu thông qua các luật đã được thiết lập trước. Kỹ thuật này còn nhiều hạn chế do không phát hiện được các cuộc tấn công mới hoặc biến thể của các cuộc tấn công đã biết. Nhằm khắc phục hạn chế này, nhiều kỹ thuật ứng dụng máy học đã được nghiên cứu và triển khai. Trong bài báo này, nhóm tác giả đề xuất hướng tiếp cận cải tiến mô hình mạng học sâu hai giai đoạn ứng dụng trong hệ thống phát hiện và phân loại các hình thức tấn công trinh sát mạng. Đề xuất sẽ được đánh giá, thử nghiệm với bộ dữ liệu tiêu chuẩn NSL-KDD, UNSW-NB15, CTU13.
Abstract— In recent years, the number of new types of attacks has increased dramatically. Although there are many types of attack techniques, all of them are following the similar chain of attack, beginning with network reconnaissance phase. Therefore, network reconnaissance attack detection problem is important for every Intrusion Detection System (IDS). In fact, network intrusion detection systems are based on pre-defined rules so they are not able to detect new attacks or variants of known attacks. Meanwhile, hackers have developed many automated toolkits that allow subtle changes to the attack behavior sufficient for IDS to treat as a zero-day attack. To overcome this limitation, many machine learning models have been applied in IDS and implemented in a real network. In this paper, we propose a new approach that uses two stage AutoEncoder to detect network reconnaissance attacks. The proposed approach is evaluated on network security datasets: NSL-KDD, UNSW_NB15, four scenarios of the CTU13 datasets and compared to existing methods.
Khai phá tập phổ biến đảm bảo tính riêng tư cho dữ liệu phân mảnh dọc sử dụng hệ mật ElGamal
Authors: Chung Nguyễn Văn , Sự Trần Đức 
Published: April 2023

Tóm tắt— Khai phá dữ liệu đảm bảo tính riêng tư ngày càng nhận sự quan tâm của cộng đồng nghiên cứu, đặc biệt là khai phá tập phổ biến có đảm bảo tính riêng tư là một chủ đề được đề cập nhiều trong thời gian gần đây. Bài báo này, tác giả đề xuất một phương pháp khai phá tập phổ biến đảm bảo tính riêng tư cho mô hình dữ liệu phân mảnh dọc trên 3 thành viên. Phương pháp đề xuất có hiệu quả tương đương và an toàn hơn các phương pháp hiện có, mỗi thành viên tham gia giao thức có thể chống lại sự thông đồng của 2 thành viên còn lại và không làm lộ thông tin trong quá trình thực thi giao thức.
Abstract— Privacy-preserving data mining is increasingly receiving the attention of the research community, especially privacy-preserving frequent set mining, which is a topic that has been discussed a lot in recent times. In this paper, we propose a novel technique for privacy-preserving freuquent itemset mining in three party vertically distributed data. We show that the proposed technique is as efficient as the best existing protocols for performing the same task, and more secure than the most secured protocols with against collusion, 3 members joined the protocol the 2 members colluded not to reveal data of the other member.
Initial point for enhancing DC Programming and DCA in Physical Layer Security
Authors: Tuấn Nguyễn Như 
Published: April 2023

Abstract— Physical layer security (PLS) is to enable confidential data transmission through wireless communication systems in the presence of illegitimate receivers, without basing on higher-layer encryption. The goal of PLS is to make use of the properties of the physical to enable critical aspects of secure communication. PLS's additional strength is that it is based on information-theoretic security, which assumes no limit on the opponent's computational power and is thus inherently quantum-resistant. In general, PLS problems are non-convex programming and thus hard to deal with. One approach to handling these problems is based on DC programming and DCA, in which finding a good initial point of DCA scheme is still a complicated, challenging and open problem. This paper proposal some good initial points for the PLS problem DCA-DF scheme on Decode-and-Forward relaying wireless networks.
Konjungtivitis pada COVID-19
Authors: Stefanie Airina , Haryady Stefanny , Suci Amelia Yufilia 
Published: April 2023

Corona Virus Disease 19 (COVID-19) pertama ditemukan di Wuhan, Cina, pada Desember 2019 dan telah menjadi ancaman kesehatan global. COVID-19 disebabkan oleh Severe Acute Respiratory Corona Virus 2 (SARS-CoV-2), ditransmisikan melalui droplet pernapasan atau kontak erat. Penelitian terbaru menyatakan bahwa konjungtiva dapat menjadi port d’entree SARS-CoV-2, dan menyebabkan gejala konjungtivitis. Jalur transmisi SARS-CoV 2 ke okuler diduga melalui inokulasi langsung dan melalui reseptor ACE2 yang diekspresikan di konjungtiva. Karakteristik konjungtivitis COVID-19 adalah sekret mukoid ataupun aqueous berlebih, sensasi tidak nyaman pada okuler seperti gatal, benda asing, atau rasa terbakar, serta hiperemis konjungtiva. Pada pemeriksaan RT PCR swab okuler ataupun nasofaring dapat positif pada 3 hingga 21 hari setelah onset gejala. Studi ini merupakan literature review. Artikel diambil dari database Google scholar, Pubmed, Lange, Elsevier, dengan kata kunci “ocular manifestation in COVID-19”, “characteristics of conjunctivitis in COVID-19”, “mechanism of COVID-19 in conjunctiva”. Artikel yang dipilih adalah jurnal yang dipublikasi sejak tanggal 1 Desember 2019 sampai 30 Oktober 2020.
Corona Virus Disease 19 (COVID-19) was first discovered in Wuhan, China, in 2019 and has been declared as global health emergency. COVID-19 is caused by Severe Acute Respiratory Corona Virus 2 (SARS-CoV 2) transmitted through droplet and physical contact. Studies stated that conjunctiva is a potential port of entry of SARS-CoV2, which then leads to conjunctivitis. This literature review is based on analytic study on conjunctivitis in COVID-19. The transmission route is thought from direct inoculation and expression of ACE2 receptors from conjunctiva. Most common characteristics of conjunctivitis in COVID-19 are increased conjunctival secretions both mucoid and aqueous, and ocular discomfort such as itching, foreign bodies sensations, burning, and conjunctival hyperemia. RT PCR from both ocular and nasopharyngeal swabs were detectable from days 3 to 21 after the onset of symptoms. This study is a review on published articles from December 1st 2019 to October 30th 2020, in Google Scholar, PubMed, Lange, and Elsevier; selected with keywords “ocular manifestation in COVID-19”, “characteristics of conjunctivitis in COVID-19”, “mechanism of COVID-19 in conjunctiva”.
Association between Bubble Tea Consumption and Prevalence of Acne Vulgaris
Authors: Subagio Devina , Budiastuti Asih , Aryoko Widodo Yulian Ludovicus , Riyanto Puguh 
Published: April 2023

Introduction: Acne vulgaris (AV) is one of the most common skin disorders among youth. A cross-sectional study was conducted to analyze the association between bubble tea consumption and the prevalence of acne vulgaris among medical students. Method: Subjects were obtained from consecutive sampling. There were 91 eligible subjects meeting inclusion criteria. Data was collected using questionnaires. Examinations were through the observation of photographs of lesions. Chi-square analysis was conducted at a 95% confidence interval (p<0.05). Results: Data were collected from 91 medical students with a mean age of 19.62+0.98-year-old. The prevalence of acne was 58.2%, mainly at the age of 20 (37.7%). There is a significant association between consumption of bubble tea and the prevalence of AV (p<0.001). Conclusion: Bubble tea consumption is associated with the prevalence of acne vulgaris.
Pendahuluan: Akne vulgaris merupakan salah satu penyakit kulit yang umum dialami pada dewasa muda. Metode: Penelitian observasional cross-sectional untuk mengetahui asosiasi konsumsi bubble tea dengan kejadian akne vulgaris. Sampel diambil dengan metode consecutive sampling menghasilkan 91 mahasiswa yang memenuhi kriteria inklusi dan eksklusi. Pengambilan data primer dengan kuesioner. Pemeriksaan fisik observasi kulit responden dengan foto. Analisis data menggunakan uji Chi-Square dengan tingkat kemaknaan p<0,05. Hasil: Angka kejadian akne vulgaris adalah 58,2%, dengan rata-rata usia 19,62+0,98; usia terbanyak penderita adalah 20 tahun (37,7%). Terdapat asosiasi bermakna antara konsumsi bubble tea dan kejadian akne vulgaris (p<0,001). Simpulan: Penelitian ini menunjukkan hubungan bermakna antara konsumsi bubble tea dan kejadian akne vulgaris.
Pendekatan Klinis Pasien Transthyretin Cardiac Amyloidosis (ATTR-CA)
Authors: Purba Nur Adiba 
Published: April 2023

Transthyretin Cardiac Amyloidosis (ATTR-CA) adalah penumpukan fragmen protein transthyretin di jaringan interstisial miokardium akibat salah lipat protein, menyebabkan kardiomiopati restriktif dan infiltratif karena penebalan dan kekakuan dinding jantung. Transthyretin sebagian besar diproduksi di hati, berbentuk tetramer dan berfungsi sebagai protein pembawa tiroksin (T4) serta holoretinol binding protein (HRP). Saat ini, pemeriksaan diagnostik metode non-invasif telah dikembangkan meskipun biopsi endomiokardium masih menjadi gold standard diagnosis. Diagnosis akurat sedini mungkin sangat berpengaruh terhadap keberhasilan serta penurunan angka morbiditas dan mortalitas.
Transthyretin Cardiac Amyloidosis (ATTR-CA) is the accumulation of transthyretin protein fragment in myocardium interstitial tissue induced by misfolded protein, lead to thickening and stiffness cardiac muscles, causing restrictive and infiltrative cardiomyopathy. Transthyretin is produced mainly in the liver as tetramer and bonded both with thyroxine (T4) and holoretinol binding protein (HRP) as carrier protein. Diagnostic test with non-invasive methods have been developed recently although endomyocardial biopsy is still the gold standard. Early targeted diagnosis has huge impact for therapy management and decreasing patient’s morbidity and mortality.
Tinjauan atas Retinopati Valsalva
Authors: Priyantono Rabiul , Meylani Nassa Rachmatika 
Published: April 2023

Retinopati Valsalva adalah penyakit dengan gambaran perdarahan lapisan subhyaloid atau sub-Internal Limiting Membrane (ILM) retina yang disebabkan oleh aktivitas mirip manuver Valsalva seperti batuk, mengejan, muntah, atau latihan fisik yang kuat. Keluhan berupa penurunan tajam penglihatan mendadak mulai dari ringan sampai berat, bahkan hilangnya tajam penglihatan. Penyakit ini belum diketahui epidemiologinya. Perdarahan bisa mengalami resolusi dalam beberapa minggu atau beberapa bulan. Tindakan laser atau pembedahan dibutuhkan jika perdarahan cukup banyak atau tidak terjadi resolusi.
Valsalva retinopathy is hemorrhage in subhyaloid or sub-Internal Limiting Membrane (ILM) layer in retina, caused by Valsalva maneuver-like activity such as cough, straining, vomiting, or vigorous physical activity. The symptom is mild to severe sudden painless decreased visual acuity, even loss of vision. The epidemiology of this disease is unknown. Hemorrhage in retinal layer can be resolved in weeks to months. Laser treatment or surgical treatment can be considered if in massive hemorrhage, or no resolution after observation.
Efek Samping Steroid Sistemik pada Terapi Pemvigus Vulgaris
Authors: Aviana Felicia , Birawan I Made 
Published: April 2023

Pemfigus vulgaris (PV) adalah penyakit autoimun vesikobulosa pada kulit dan membran mukosa yang secara histologi ditandai bula intraepidermal yang disebabkan oleh akantolisis. Steroid sistemik merupakan terapi utama PV. Artikel ini membahas efek samping terapi steroid parenteral pada pemfigus vulgaris.
Pemphigus Vulgaris (PV) is an autoimmune blistering disease of skin and mucous membranes, histologically defined by intraepidermal blister due to acantholysis. Systemic steroid is the first-line treatment in PV. This article briefly discussedthe adverse effect of parenteral steroid in the treatment of pemphigus vulgaris.
Iktiosis Harlequin: Tatalaksana dan Prognosis
Authors: Gunawan Harry , Rakhmawati Flora Anisah 
Published: April 2023

Iktiosis Harlequin (IH) merupakan kelompok iktiosis kongenital autosomal resesif yang sangat jarang terjadi, dengan prevalensi 1 kasus setiap 300.000 orang. IH memiliki manifestasi klinis tipikal, dilahirkan dengan hiperkeratosis masif yang disebabkan pewarisan gen autosomal resesif mutasi gen adenosine triphosphate (ATP) - binding cassette sub-family A member 12 (ABCA12) yang terlibat dalam sekresi granula lamelar, serta transport seramid dan lipid epidermal. Kemungkinan hidup pasien IH meningkat seiring perbaikan fasilitas perawatan neonatus dan terapi retinoid. Prinsip utama perawatan pasien IH adalah mengupayakan deskuamasi, terapi suportif, dan penanganan kecacatan fisik yang mengancam vitalitas organ. Konseling genetik dan pemeriksaan diagnostik prenatal perlu untuk deteksi dini pada keluarga yang memiliki riwayat IH.
Harlequin Ichthyosis (HI) is a rare autosomal recessive congenital ichthysosis that occurs in about 1 in 300.000 people. HI is characterized by typical skin manifestation with massive hyperkeratosis due to adenosine triphosphate (ATP) - binding cassette sub-family A member 12 (ABCA12) gene mutation inheritance. The ABCA12 gene is involved in lamellar granule secretion, ceramide, and epidermal lipid transport. Survival rate of HI patient increased along with improvement of neonatal care facilities and administration of systemic retinoid. The main principles of care are desquamation, supportive therapy, and treatment for physical disabilities which threatens organ vitality. Genetic counseling and prenatal diagnosis could benefit family with HI history.
Hernia Ventralis
Authors: Shannen Felicia Adelina , Surya Wijaya I Made Adi , Prasista Ida Bagus Yudha 
Published: April 2023

Hernia ventralis merupakan penonjolan isi rongga abdomen pada dinding abdomen. Seorang wanita, 54 tahun, datang dengan keluhan utama benjolan perut sejak kecil. Pada pemeriksaan didapatkan massa bulat diameter 10 cm di abdomen regio epigastrika, membesar pada posisi berdiri dan duduk serta mengecil saat berbaring. Pada pasien dilakukan operasi primary open repair pada defek hernia ventralis.

Ventral hernia is a protrusion of abdominal cavity contents in the abdominal wall. A 54 year-old female presented with a lump in the stomach since childhood. On examination, a round mass measuring 10 cm in diameter was found in the abdominal epigastric region, enlarged in standing and sitting positions and reduced when lying down. Primary open repair was performed on the ventral hernia defect.
Sudden Onset of Strabismus in Adults-Is It a Life-Threatening Sign?
Authors: Dewi Amita Angela Shinta , Faustine Giovani 
Published: April 2023

The overall incidence of strabismus is higher in adults; approximately 1% of children have strabismus, while the estimation among adults is 4% but may run as high as 5.6%. The four types of new-onset strabismus in adults most often found were paralytic, convergence insufficiency, small-angle hypertropia, and divergence insufficiency. The stroke should be suspected in the sudden onset of paralytic strabismus. The most prevalent type of manifest strabismus found on stroke survivors was exotropia. Tumors, myasthenia gravis, thyroid eye disease are common causes of gradual-onset strabismus. Thorough examinations and proper referral are needed.

Insidens rata-rata strabismus lebih tinggi pada dewasa; sekitar 1% populasi anak mengalami strabismus, sedangkan perkiraan prevalensi strabismus dewasa sebesar 4%, dan dapat mencapai 5,6%. Empat tipe strabismus onset baru pada dewasa yang paling sering adalah paralitik, insufisiensi konvergen, hipertropia sudut kecil, dan insufisiensi divergen. Salah satu penyebab paralitik yang harus diwaspadai adalah stroke. Eksotropia merupakan tipe strabismus yang paling sering pada pasien post-stroke. Tumor, miastenia gravis, penyakit tiroid pada mata merupakan penyebab umum kasus strabismus onset lambat. Pemeriksaan menyeluruh dan sistem rujukan yang baik diperlukan untuk terapi yang memuaskan.