bluuebunny/crossref_metadata_2025_split huggingface dataset:
Community Empowerment Through Increasing Productive Land Use for Sustainable Food Houses
Authors: Ratih Damayanti Gusti Ayu , Ulum Hafizatul , Rifai Ahmad 
Published: January 2025

The Rumah Pangan Lestari program is a program to utilize limited land potential, especially yards. This program aims to ensure the maximum nutritional value of the food consumed by the family and make the best use of limited yard land, so as to minimize expenses and become a source of income for the local community. Therefore, we implement and run this sustainable food house program, which provides socialization and training, field visits, and food crop nurseries for the Gelasar village community. This activity took place during the implementation of the 38th KKN T period 2024. Administrator,https://upland.psp.pertanian.go.id/artikel/1703313612/rumah-pangan-lestari-rpl-solusi-bagi-masyarakat, 14122023 Dinas Ketahanan Pangan Provinsi Nusa Tenggara Barat, https://diskapang.ntbprov.go.id/pages/kawasan-rumah-pangan-lestari-krpl.Annisahaq, H., Nuhfil, H., Syafrial. (2014). Pengaruh Program Kawasan Rumah Lestari (KRPL) dalam Mendukung Kemandirian Pangan dan Kesejahteraan Rumah Tangga.Habitat. Vol 25 (1). 32-39 pp.Arafat, Y. (2018, September). Studi Penerapan Pendidikan Karakter Di Sekolah Tinggi Keguruan Dan Ilmu Pendidikan (STKIP) Bima. In Prosiding Seminar Nasional Lembaga Penelitian Dan Pendidikan (LPP) Mandala (pp. 453-460).Ashari, Saptana, Tri, B. P. (2012). Potensi dan Prospek Pemanfaatan Lahan Pekarangan untuk Mendukung Ketahanan Pangan. Forum Penelitian Agro Ekonomi. Vol 30 (1). 13-30 pp.Cristianingrum, Gigih, I. P. (2020). Penerapan Sistem Kawasan Rumah Pangan Lestari (KRPL) di Desa Baru, Kecamatan Manggar, Kabupaten Belitung Timur. Ikraith- Abdimas. Vol. 3. No. 1. 89-94.Dirawan, G. D., & Muhdar, M. (2022). STRATEGI PEMANFAATAN JASA LINGKUNGAN PADA HUTAN KEMASYARAKATAN DI KABUPATEN DOMPU. Humano: Jurnal Penelitian, 13(2), 65-73.Faqih, A. 2015. Persepsi Anggota Kelompok Tani terhadap Peranan Kelompok Tani; Logika: Jurnal Ilmiah LEMLIT Unswagati Cirebon. Vol 15 (3). 72-89 pp.Mardiharini, M. 2011. Model Kawasan Rumah Pangan Lestari dan Pengembangannya ke Seluruh Provinsi di Indonesia. Warta Penelitian dan Pengembangan Pertanian. Vol 33 (6). 3-5 pp.Purwantini, T. B., Saptan, Sri, S. S. 2012. Program Kawasan Rumah Pangan Lestari (KRPL)di Kabupaten Pacitan: Analisis Dampak dan Antisipasi ke Depan. Analisis KebijakanPertanian. Vol 10 (3). 239-256 pp.Undang-Undang Nomor 18 Tahun 2012 Tentang Pangan
Empowerment of Weaving Groups in Developing Innovation and Creativity Through Product Diversification in the Sipatuo Business Group in Campalagian District
Authors: Kartika Eka Dewi , Laitupa Salma 
Published: January 2025

Weaving activities carried out by housewives with the name of the weaving group ''sipatuo'' in Campalagian District at the initial observation amounted to 15 people. The knowledge and skills of weaving carried out by housewives in the sipatuo craftsman business were obtained because the skills were passed down from generation to generation. from family. This service activity provides contribution actually in the form of scientific knowledge and technique in making product-woven products and strategies the marketing also choosing the right raw materials in making woven products. Specifically on the partners of the shoe weaving business group as target partner of the West Sulawesi university service team. .
Application of Safety Riding on The Highway in The Perspective of Road Transportation Traffic Law
Authors: Mahadewi Kadek Julia 
Published: January 2025

The high number of accidents on the highway every year results in the government taking policies in carrying out legal protection for the public in driving on the highway. This is aimed at the Government to make efforts to estimate the number of accidents that result in the loss of a person's life. The government by using the Safety Riding method in driving on the highway hopes to reduce the number of accidents that arise in the community by paying attention to completeness and safety in traffic on the highway. The problem that arises How is the implementation of safety riding carried out by the government in relation to the UULAJ?. The purpose of this journal is so that the public has awareness carried out by the community, especially the younger generation, can have awareness of driving on the highway by remembering the importance of safety for themselves and others and a sense of safety and comfort when driving. The use of Safety Riding is inseparable from the role of the Government, Companies and the community in forming synergy in efforts to save traffic. The implementation of Safety Riding is present in the community to prevent the number of accidents so that the UULLAJ is a suggestion for legal protection in the community.
Responsiveness Family Law Reform in Indonesia and Tunisia (Study of Post-Divorce Child Custody
Authors: Putri Suci Ramadhani , Anam Ahmad Gautsul 
Published: January 2025

This study aims to explain the development of understanding of child custody after divorce, describe an overview of the provisions of child custody after divorce in Indonesia and Tunisia, explain the importance of applying the best interest of the child in post-divorce child custody decisions, and finally assess the responsiveness of child custody provisions after divorce in Indonesia and Tunisia. This research is a qualitative research, with a normative juridical approach. The main sources of data for this research are Law Number 1 of 1974 concerning Marriage jo. Law Number 16 of 2019, Compilation of Islamic Law and Code of Personal Status (CPS). Family law reform in Tunisia is more progressive in ensuring the law is responsive to social change and children's needs. On the other hand, Indonesia still faces challenges in integrating traditional values with modern legal principles. Both countries have the potential to learn from each other, especially in creating a more equitable and child-oriented legal system after divorce. Both countries offer flexibility in addressing social contexts, relationships between children and parents, and emotional needs. However, implementation varies between the two countries. Islamic law in Indonesia strongly influences child protection, while Tunisia's CPS reforms in the year focused on gender equality.
Epistemology of Islamic Inheritance Law Justice in the Perspective of Islamic Legal Philosophy
Authors: Sanafiah Fadri 
Published: January 2025

Penelitian ini mengulas tentang Epistemologi Keadilan Hukum Waris Islam dalam Perspektif Filsafat Hukum Islam bahwa Hukum kewarisan Islam pada dasarnya berlaku untuk umat Islam di mana saja di dunia ini. Sungguhpun demikian, corak suatu negara Islam dan kehidupan masyarakat di negara atau daerah tersebut memberi pengaruh atas hukum kewarisan di daerah itu. Pengaruh itu adalah pengaruh terbatas yang tidak dapat melampui garis-garis pokok dari ketentuan hukum kewarisan Islam tersebut. Namun pengaruh tadi dapat terjadi pada bagian-bagian yang berasal dari ijtihad atau pendapat ahli-ahli hukum Islam sendiri (Sajuti (1995)). Dalam ajaran Islam tidak membedakan gender baik itu laki-laik maupun perempuan semuanya sama rata kedudukannya dalam hal apapun, kecuali kodrat yang dianugerahkan Allah yang membedakannya yang merupakan fitrahnya itu. Demikian juga dalam hal waris semuanya itu berimbang dan adil dalam hal pembagian harta warisan, tidak ada lagi yang namanya 2: 1 tapi semuanya itu dibagikan sama rata, berdasarkan faktor sosiologis dan perubahan status sosial yang berkembang dalam masyarakat. Karena pada hakekatnya ayat-ayat al-Qur’an yang berkaitan dengan waris itu sifatnya bilateral/parental bukan yang selama ini dipahami secara patrilineal.Dari hasil penelitian ini diharapkan dapat member kegunaan secara akademis dan praktis, dari sisi akademis kegunaan penelitian di samping berguna bagi pengembangan ilmu penulis juga dapat bermanfaat bagi peneliti-peneliti yang akan datang. Pentingnya hasil penelitian ini bagi peneliti-peneliti yang akan datang terutama terletak pada sisi ketersediaan data awal, karakteristik termasuk masalah-masalah yang belum mendapatkan analisis yang fokus. Secara praktis penelitian ini berguna bagi informasi. Penelitian ini adalah penelitian pustaka (library research), bersifat kualitatif, deskriptif analitis.
الجريمة المنظمة
Authors: خالد عبدالله محمد قرقز  
Published: January 2025

نتيجة لما شهده العالم مـن تغيرات كثيرة اقتصاديــة وسياسية واجتماعية وانفتاح اقتصادي وحريـة للتجارة وتلاشي معظم حـدود الدول (كالاتحاد الأوروبي) وسهولة تنقل الأشخاص والبضائع بين الدول ليصبح العالم قرية واحدة كل ذلك أدى إلى تطور الجريمة المنظمة وانتشارها لتصبح عابرة للحدود الوطنية وخطراً يهـدد معظم دول العالم، ولاسيما الدول النامية كالـدول العربية وذلـك لقيامها بتقديم التسهيلات الاقتصادية كافة لجذب رؤوس الأموال والمستثمرين وهو ما يكون على حساب رقابة مصدر هـذه الأموال.
ولا يقتصر اثر الجريمة المنظمة على الصعيد الدولي بل يتعداه ليهـدد الأمن والاستقرار داخل الدول وذلك لعدم ترددها في استخدام وسائلها لتحقيق أغراضها من عنف وتهديد ورشوة، وهو ما يؤدي إلى فشل النظام السياسي والإداري في الدولة، فضلا عـن نشرها الفساد بين أفراد المجتمع.
كما تقوم عصابات الجريمة المنظمة بتوظيف الأموال الطائلة التي تحققها في السيطرة على الاقتصاد أو على قطاع منـه، وتخفي أنشطتها غير المشروعه بالاستعانة بذوي الخبرة في مختلف المجالات كالقانون والاقتصاد والمحاسبة وهو ما يؤدي في النهاية إلى التأثير على التنمية الاقتصادية والاجتماعية فـي الدول، وزعزعة الأمن والاستقرار فيها وبالأخص في الدول النامية وهذا ما جعل دول العالم وهيئة الأمم المتحدة تعطي لهذه الجريمة أهمية كبيرة .
إيقاف التنفيذ كبديل للعقوبة السالبة للحرية في القانون الجنائي الليبي
Authors: د. ريما مصباح الفيتوري الفرجاني  
Published: January 2025

دأب فقهاء القانون الجنائي البحث عن بدائل للعقوبات السالبة للحرية قصيرة المدة، الهدف منها إصلاح المحكوم عليه وتهذيبه بعيداً عن مراكز الإصلاح والتأهيل، وتجنباً للاختلاط المفسد داخل السجون، ومما لا شك فيه إنَّ العقوبات السالبة للحرية قصيرة المدة لا تكفي لتحقيق الردع العام ، ولا تصلح للردع الخاص، الأمر الذي يجعل هذه العقوبة قاصرة عن تحقيق أهدافها، لذلك أخذ المشرع الليبي بمجموعة من البدائل ومن بينها وقف تنفيذ العقوبة كبديل للعقوبات السالبة للحرية قصيرة المدة. ويقصد به وصف يرد على الحكم الجنائي الصادر بعقوبة معينة فيجرده من قوته التنفيذية، إذاً وقف التنفيذ لا يتم بقوة القانون وإنما بتوافر شروطه وذلك متروك للسلطة التقديرية للمحكمة.
PHÁT TRIỂN KỸ NĂNG XANH CHO SINH VIÊN ĐẠI HỌC
Authors: Vũ Hương Giang, Nguyễn Thị Hương An  , Nguyễn Thành Trung, Trần Thu Phương  , Nguyễn Thị Hoài An*  
Published: January 2025

Nghiên cứu đã hệ thống hóa một số vấn đề lý luận về kỹ năng xanh và phát triển kỹ năng xanh cho sinh viên đại học. Theo đó, phát triển kỹ năng xanh được hiểu là quá trình học hỏi, trau dồi và cải thiện những kiến thức, kỹ năng, thái độ và giá trị của mỗi cá nhân nhằm giải quyết các vấn đề liên quan tới môi trường và bền vững. Để phát triển kỹ năng xanh cho sinh viên đại học, mô hình giáo dục phát triển bền vững ESD được phân tích với các phương pháp giáo dục tích hợp vào chương trình đào tạo thông qua các phương pháp học tập dựa trên vấn đề (PBL), học tập dựa trên dự án (PjBL) hoặc tích hợp PBL và PjBL để giải quyết các vấn đề về phát triển bền vững trong thực tiễn.
Exploring Lecanemab: Mechanisms, Efficacy, and Clinical Implications in Alzheimer's Disease Management
Authors: He Ziming 
Published: January 2025

Lecanemab, with accelerated approval from the FDA, becomes a notable and promising drug to fight against Alzheimer's disease (AD). As one monoclonal antibody, it is reported that lecanemab can reduce cognitive decline caused by AD by reducing amyloid-beta in patients. However, some concerns, uncertainties and limitations of Lecanemab in clinical trials have also been brought out. This study analyses the existing methods to cure AD and researches in clinical phases of lecanemab and relevant detailed information. This article aims to provide a relevant view of key aspects of lecanemab’s performance, including its mechanisms, effects, safety, limitations and tips. Thus, this study shows an updated summary for those who want to be exposed to the current situations of applications of Lecanemab. The nature of AD remains complex to us nowadays, so further fundamental research concerning the causes and mechanisms of AD. For those drugs targeting AD, many aspects involving itself and its usage still need to be investigated.
Effect of Gamma Irradiation on Nutritional Quality and shelf life of Groundnut Species Produced in Benue State Nigeria
Authors: Akaagerger N. B. , Ochokwunu P. E. 
Published: January 2025

Groundnut is a perishable crop and is subject to quality losses during storage through insect pests, rodent infestation and fungal development. Gamma (γ) irradiation has emerged as a promising technique which could effectively be used for disinfestations of stored food products therefore presenting alternative to chemical preservatives. This research investigated the effect of gamma irradiation on nutritional quality and shelf life of groundnut species produced in Benue State Nigeria. The seeds of Bernarda 1 groundnut (BE1G), Local groundnut (LOG) species were irradiated at varying doses (0, 200, 300, 400 and 500 Gy) using Cobalt-60 Gamma Irradiator. The irradiated and non-irradiated samples were each divided into two portions. The first portion was used for proximate analysis while the second was stored for a period of four months under the same ambient temperature and conditions in a polythene bags and its percentage weight loss were determined. Proximate analysis revealed no significance difference at (p≥0.01) in moisture, protein, crude fibre and fats composition of BE1G species between non irradiated and irradiated samples, however a significant variation (p≤0.01) was observed in its ash and carbohydrate across 200 Gy, 300 Gy and 400 Gy. The result also revealed no significant difference in the proximate composition of LOG species for 400 Gy and 500 Gy doses. After four months storage, percentage weight loss analysis indicated a significant difference between irradiated and control seeds of samples. The 500 Gy dose exhibited the least weight loss in the samples. These findings suggest 500 Gy as gamma irradiation dose for BE1G and LOG, highlighting the optimal effective doses for their preservation.
Estrategias de branding de Golden Bean Co. y su conexión emocional en el consumidor ecuatoriano
Authors: Córdova Durán Edmundo Guillermo 
Published: January 2025

En el presente artículo se analiza cómo la marca Golden Bean Co. ha logrado establecer vínculos emocionales en el paladar ecuatoriano. A través de las estrategias de gestión de marcas efectivas, la empresa ha cultivado una identidad de marca que resuena con los valores y aspiraciones del cliente. Se examinan las tácticas utilizadas, como el branding, storytelling, la creación de experiencias de marca mediante la conexión emocional, que han generado lealtad y preferencia entre distintos consumidores. El estudio destaca la importancia de la autenticidad y la responsabilidad social en la percepción de la marca. La investigación finaliza que la estrategia del engagement con el cliente no solo incrementa las ventas, sino que también fortalece la reputación de la marca en un mercado muy competitivo, sugiriendo que las empresas de chocolate de fino aroma deben alinearse en construir relaciones significativas con sus clientes para lograr un crecimiento sostenible a largo plazo.
Mitigating Cyber Attacks for Organization Assets using UEBA (User and Entity Behavior Analytics) and other Machine Learning Solutions from Cloud Security Threats: A Literature Review
Authors: Blancaflor Eric , Esteron Keith Christian , Cy Andrade , Camacho Wayne Hans , Guzon Bradney 
Published: January 2025

User and Entity Behavior Analytics has been one of the key steppingstones towards protecting valuable data and information for organizations that decided to store their assets in a cloud-based storage. The implications suggest that third-party software may not be as reliable as these are prone to attacks due to its accessibility and vulnerable nature. This study aims to provide a comprehensive review that covers User and Entity Behavior Analytics (UEBA) and other machine learning techniques to effectively mitigate cyberattacks and protect organizational assets from cloud-based security threats. The objective is to identify and analyze anomalous user and entity behaviors that may indicate potential cyberattacks and provide recommendations for organizations to enhance their cloud security posture and minimize the risk of data breaches and other security incidents. The research covers some of the algorithms used in detecting anomalies such as Isolation Forest, Deep Autoencoder, and Linear Regression, and emphasizes the adaptability of these chosen algorithms to the dynamic landscape of cyber threats, especially in cloud environments. By arriving at a cohesive integration of machine learning algorithms, this study advocates for a holistic approach that aligns with evolving security challenges. Ultimately, the significance lies in offering a nuanced perspective on effective cyber threat mitigation strategies, contributing to the broader conversation on securing organizational assets in the face of evolving cybersecurity landscapes.
PENGARUH KUALITAS PELAYANAN DAN HARGA TERHADAP KEPUASAN PELANGGAN PADA PT. KIKIJAYA AIRCONINDO JAKARTA UTARA
Authors: Wasito Pangestu Hadist , Adha Adrian , Aryani Feby 
Published: January 2025

Penelitian ini bertujuan untuk mengetahui 1. Pengaruh Kualitas Pelayanan terhadap Kepuasan Pelanggan pada PT Kikijaya Airconindo Jakarta Utara. 2. Pengaruh Harga terhadap Kepuasan Pelanggan pada PT Kikijya Airconindo Jakarta Utara. 3. Pengaruh Kualitas Pelayanan dan Harga terhadap Kepuasan Pelanggan pada PT Kikijaya Airconindo Jakarta Utara. Jenis penelitian ini adalah penelitian kuantitatif. Populasi yang di ambil dari konsumen dari PT Kikijaya Airconindo Jakarta Utara. Sampel pada penelitian ini adalah Sebagian konsumen PT Kikijaya Airconindo Jakarta Utara yang berjumlah 62 orang responden. Teknik pengumpulan data penelitian ini menggunakan kuesioner. Teknik analisis data menggunakan Regresi Linier Sederhana dan Regresi Linier Berganda. Hasil penelitian Kualitas Pelayanan terhadap Kepuasan Pelanggan diketahui tidak mempunyai pengaruh sebesar 19,1% sedangkan untuk hasil penelitian Harga terhadap Kepuasan Pelanggan diketahui mempunyai pengaruh sebesar 67,8% dan untuk hasil penelitian Kualitas Pelayanan dan Harga terhadap Kepuasan Pelanggan diketaui mempunyai pengaruh sebesar 68,1%. Dari penelitian ini menunjukkan bahwa ada pengaruh Kualitas Pelayanan dan Harga terhadapa Kepuasan Pelanggan pada PT Kikijaya Airconindo Jakarta Utara.
The impact of side and top arm techniques during the backstroke breakout phase on 15-meter swimming performance
Authors: Jin Zhenyu , Zhou Yuhang , Wang Dapeng , Wen Yuhong 
Published: January 2025

Background
Research on the swimming starts and turns in professional swimming has become increasingly refined. The breakout phase is a crucial transition from point between underwater and above-water movements. The side arm technique is commonly used during the backstroke breakout phase. However, some swimmers have also achieved good performance using the top arm technique. The impact of the two techniques during the backstroke breakout phase is yet to be explored.

Purpose
To compare the velocity and key angles differences between the side arm and top arm techniques and analyze their effect on the first 15-m performance after push-off.

Methods
The subjects were 16 high-level swimmers: eight males (20.4 ± 1.6 yr) and eight females (20.9 ± 1.7 yr). Of these, 14 were backstrokers or had individual medley as their primary event. The best performances in the history of the sport’s level World Aquatics Points are 682.1 ± 59.0 and 729.3 ± 41.5 for males and females, respectively. A within-subject design was used to test both the side arm and top arm techniques. Four underwater cameras were used to capture two-dimensional data from two perspectives, focusing on the breakout phase. A two-way ANOVA used to compare segment velocity, angles, and 15-m performance between the two genders and breakout techniques. Pearson’s correlation analysis was used to explore the relationship between segment velocity and 15-m performance, and hierarchical regression was employed to investigate the impact of breakout velocity on the 15-m performance.

Results
Both male and female swimmers exhibited a significantly faster top arm velocities of (1.72 ± 0.20 and 1.47 ± 0.16 m/s, respectively) compared to the side arm velocities (1.51 ± 0.23 and 1.29 ± 0.19 m/s, respectively) during the breakout phase. Additionally, significant differences were found between the two genders (F = 11.189, p = 0.002, η2 = 0.286) and breakout techniques (F = 8.014, p = 0.008, η2 = 0.223), with no interaction effect (F = 0.037, p = 0.849, η2 = 0.001). Furthermore, both male (R = −0.447, p = 0.109) and female (R = −0.555, p = 0.017) swimmers showed a moderate positive correlation between breakout velocity and 15-m performance, and the regression model indicated a significant impact on the 15-m performance.

Conclusion
The top arm technique during backstroke may offer a velocity advantage over the traditional side arm technique during the breakout phase, influencing 15-m performance. However, considering the short duration of the breakout phase, this advantage and its impact may need to be considered in conjunction with the smoothness of the transition to the subsequent phases.
Biomedical association analysis between G2/M checkpoint genes and susceptibility to HIV-1 infection and AIDS progression from a northern chinese MSM population
Authors: Wu Jiawei , Xu Lidan , Liu Bangquan , Sun Wenjing , Hu Yuanting , Yang Yi , Guo Keer , Jia Xueyuan , Sun Haiming , Wu Jie , Huang Yun , Ji Wei , Fu Songbin , Qiao Yuandong , Zhang Xuelong 
Published: July 2023

Abstract
Background
MSM are at high risk of HIV infection. Previous studies have shown that the cell cycle regulation plays an important role in HIV-1 infection, especially at the G2/M checkpoint. ATR, Chk1, Cdc25C and CDK1 are key genes of G2/M checkpoint. However, the association between SNPs of these genes and susceptibility to HIV-1 infection and AIDS progression remains unknown.

Methods
In this study, 42 tSNPs from the above four G2/M checkpoint genes were genotyped in 529 MSM and 529 control subjects from northern China to analyze this association.

Results
The results showed that rs34660854 A and rs75368165 A in ATR gene and rs3756766 A in Cdc25C gene could increase the risk of HIV-1 infection (P = 0.049, OR = 1.234, 95% CI 1.001–1.521; P = 0.020, OR = 1.296, 95% CI 1.042–1.611; P = 0.011, OR = 1.392, 95% CI 1.080–1.794, respectively), while Chk1 rs10893405 (P = 0.029, OR = 1.629, 95% CI 1.051–2.523) were significantly associated with AIDS progression. Besides, rs34660854 (P = 0.019, OR = 1.364, 95% CI 1.052–1.769; P = 0.022, OR = 1.337, 95% CI 1.042–1.716, under Codominant model and Dominant model, respectively) and rs75368165 (P = 0.006, OR = 1.445, 95% CI = 1.114–1.899; P = 0.007, OR = 1.418, 95% CI 1.099–1.831, under Codominant model and Dominant model, respectively) in ATR gene, rs12576279 (P = 0.013, OR = 0.343, 95% CI 0.147-0.800; P = 0.048, OR = 0.437, 95% CI 0.192–0.991, under Codominant model and Dominant model, respectively) and rs540436 (P = 0.012, OR = 1.407, 95% CI 1.077–1.836; P = 0.021, OR = 1.359, 95% CI 1.048–1.762, under Codominant model and Dominant model, respectively) in Chk1 gene, rs3756766 (P = 0.013, OR = 1.455, 95% CI 1.083–1.954; P = 0.009, OR = 1.460, 95% CI 1.098–1.940, under Codominant model and Dominant model, respectively) in Cdc25C gene and rs139245206 (P = 0.022, OR = 5.011, 95% CI 1.267–19.816; P = 0.020, OR = 5.067, 95% CI 1.286–19.970, under Codominant model and Recessive model, respectively) in CDK1 gene were significantly associated with HIV-1 infection under different models.

Conclusions
We found that genetic variants of G2/M checkpoint genes had a molecular influence on the occurrence of HIV-1 infection and AIDS progression in a northern Chinese MSM population.