bluuebunny/crossref_metadata_2025 huggingface dataset:
THỰC HÀNH THAY ĐỔI LỐI SỐNG VÀ YẾU TỐ LIÊN QUAN Ở NGƯỜI BỆNH TĂNG HUYẾT ÁP
Authors: Nguyễn Việt Phương , Nguyễn Trọng Hiến , Lê Kim Tha , Nguyễn Tuấn Linh , Nguyễn Tấn Đạt , Nguyễn Văn Tuấn
Published: May 2024

Đặt vấn đề: Tăng huyết áp là yếu tố nguy cơ hàng đầu có thể kiểm soát được đối với bệnh tật và tử vong bằng biện pháp thay đổi lối sống. Lối sống tích cực đóng vai trò quan trọng trong việc kiểm soát và phòng ngừa biến chứng của bệnh. Mục tiêu nghiên cứu: Mô tả thực trạng thực hành thay đổi lối sống và tìm hiểu các yếu tố liên quan ở người bệnh tăng huyết áp. Đối tượng và phương pháp nghiên cứu: Mô tả cắt ngang trên 430 người bệnh tăng huyết áp đến khám và điều trị ngoại trú tại Bệnh viện Trường Đại học Y Dược Cần Thơ. Kết quả: Có 56,5% người bệnh tăng huyết áp thực hành thay đổi lối sống, trong đó thay đổi chế độ ăn, không hút thuốc lá, hạn chế rượu/bia, vận động thể lực lần lượt là 58,6%; 83,6%; 93,5%; 27,9%. Giới tính, nghề nghiệp, tiền sử gia đình có người tăng huyết áp, nhà có trang bị máy theo dõi huyết áp, lý do chọn bệnh viện khám và điều trị, khoảng cách từ nhà đến bệnh viện được xác định có liên quan đến thực hành thay đổi lối sống của người bệnh. Kết luận: Thực trạng thực hành thay đổi lối sống của người bệnh tăng huyết áp ở mức trung bình. Do đó, những nhà lâm sàng cần quan tâm các yếu tố liên quan để có các chương trình can thiệp thích hợp.
TỶ LỆ, LOẠI TỔN THƯƠNG, MỨC ĐỘ MỤN TRỨNG CÁ VÀ MỘT SỐ YẾU TỐ LIÊN QUAN ĐẾN MỤN TRỨNG CÁ Ở HỌC SINH TRUNG HỌC PHỔ THÔNG TẠI THÀNH PHỐ VĨNH LONG, TỈNH VĨNH LONG NĂM 2023
Authors: Nguyễn Thị Huyền Trang , Bùi Thị Lệ Uyên
Published: May 2024

Đặt vấn đề: Mụn trứng cá là bệnh da thông thường tuy không ảnh hưởng đến tính mạng nhưng tồn tại dai dẳng ảnh hưởng tới thẩm mỹ và chất lượng cuộc sống người bệnh. Mục tiêu nghiên cứu: Xác định tỷ lệ, loại tổn thương, mức độ mụn trứng cá và một số yếu tố liên quan đến mụn trứng cá ở học sinh trung học phổ thông tại thành phố Vĩnh Long, tỉnh Vĩnh Long năm 2023. Đối tượng và phương pháp nghiên cứu: Mô tả cắt ngang có phân tích trên 1.024 học sinh tại các trường trung học phổ thông trên địa bàn thành phố Vĩnh Long, tỉnh Vĩnh Long năm 2023, phân tích số liệu bằng phần mềm SPSS 18.0. Kết quả: Tỷ lệ học sinh mắc mụn trứng cá chiếm 86,1%. Học sinh mắc mụn nhân đầu đen chiếm tỷ lệ cao nhất 87,4%. Học sinh mắc mụn trứng cá mức độ vừa chiếm cao nhất 51,7%. Có mối liên quan giữa tuổi, giới tính, tiền sử gia đình mắc mụn trứng cá, sử dụng chất béo, cà phê với mụn trứng cá của học sinh, p<0,05. Kết luận: Tỷ lệ mắc mụn trứng cá của học sinh rất cao (>85%), cần tăng cường công tác truyền thông, giáo dục nâng cao kiến thức, thực hành và điều trị mụn trứng cá của học sinh.
NGHIÊN CỨU TƯ THẾ CỦA RĂNG KHÔN HÀM DƯỚI LỆCH NGẦM TRÊN PHIM TOÀN CẢNH VÀ MỘT SỐ BỆNH LÝ LIÊN QUAN
Authors: Nguyễn Thị Tường Vân , Nguyễn Lâm , Nguyễn Điền Trúc Ly , Phan Bá Lộc , Đỗ Thị Thảo , Phan Bá Lộc , Đỗ Thị Thảo
Published: May 2024

Đặt vấn đề: Răng khôn hàm dưới lệch ngầm là tình trạng rất phổ biến, có liên quan đến nhiều bệnh lý từ nhẹ đến nặng. Phim toàn cảnh là công cụ chẩn đoán hình ảnh phổ biến, đặc biệt hữu ích cho khảo sát vùng răng khôn hàm dưới. Mục tiêu nghiên cứu: Xác định tỉ lệ các tư thế của răng khôn hàm dưới lệch ngầm trên phim toàn cảnh và tỉ lệ các bệnh lý liên quan trên cả lâm sàng và phim toàn cảnh. Đối tượng và phương pháp nghiên cứu: Nghiên cứu mô tả cắt ngang trên 174 răng khôn hàm dưới mọc ngầm được phân loại theo Pell và Gregory và Winter cải tiến. Các bệnh lý liên quan được đánh giá trên lâm sàng và phim toàn cảnh của bệnh nhân đến khám tại Bệnh viện Trường Đại học Y Dược Cần Thơ. Kết quả: Tỉ lệ nam và nữ lần lượt là 39,7% và 60,3%. Khoảng rộng xương loại II chiếm tỉ lệ cao nhất (62,6%). Độ sâu thường gặp nhất là độ sâu A (49,4%). Góc độ nghiêng gần được ghi nhận nhiều nhất (41,4%). Trên lâm sàng, bệnh lý thường gặp nhất là sâu mặt xa răng cối lớn thứ hai (19,5%), trong khi tình trạng tiêu xương mặt xa răng cối lớn thứ hai được ghi nhận nhiều nhất trên phim toàn cảnh (66,1%). Kết luận: Răng khôn hàm dưới lệch ngầm xuất hiện với nhiều tư thế và góc độ khác nhau, liên quan đến một loạt các bệnh lý từ nhẹ đến nặng. Khám lâm sàng kết hợp với đánh giá trên phim toàn cảnh cung cấp cho bác sĩ răng hàm mặt những thông tin cần thiết để chẩn đoán, lập kế hoạch điều trị và dự phòng những bệnh lý liên quan đến răng khôn hàm dưới lệch ngầm.
SINH THIẾT VÚ CÓ HỖ TRỢ CỦA HÚT CHÂN KHÔNG (VABB) DƯỚI HƯỚNG DẪN SIÊU ÂM TRONG CHẨN ĐOÁN VÀ ĐIỀU TRỊ CÁC TỔN THƯƠNG TUYẾN VÚ BI-RADS 3, 4, 5
Authors: Lâm Vĩnh Hảo , Lê Thanh Vũ , Phạm Hoàng Minh Quân , Lê Hoàng Phúc , Dương Lê Tấn Trường , Phạm Minh Chiến
Published: May 2024

Đặt vấn đề: Sinh thiết vú có hỗ trợ của hút chân không được phát triển năm 1995, là một kỹ thuật hiệu quả trong chẩn đoán và điều trị các tổn thương tuyến vú. Tuy nhiên tại Việt Nam chưa có nhiều nghiên cứu về hiệu quả của sinh thiết vú có hỗ trợ của hút chân không dưới hướng dẫn siêu âm. Mục tiêu nghiên cứu: Đánh giá tỉ lệ thành công và tỉ lệ biến chứng của kỹ thuật sinh thiết vú có hỗ trợ của hút chân không dưới hướng dẫn siêu âm. Đối tượng và phương pháp nghiên cứu: Nghiên cứu mô tả loạt ca trên 75 trường hợp với 122 tổn thương tuyến vú BIRADS 3, 4, 5 có chỉ định thực hiện sinh thiết vú có hỗ trợ của hút chân không dưới hướng dẫn siêu âm tại Bệnh viện Ung Bướu Thành phố Cần Thơ. Kết quả: Tỉ lệ thành công của kỹ thuật sinh thiết vú có hỗ trợ của hút chân không đạt 100%. Không có các biến chứng nghiêm trọng, có 31(41,3%) trường hợp bầm da, 5 (6,7%) trường hợp tụ máu và 4 (5,3%) trường hợp tụ dịch. Đa số kết quả giải phẫu bệnh là lành tính với 81 (71,3%) tổn thương là bướu sợi tuyến, có 7 (5,7%) tổn thương ác tính.  Kết luận: Sinh thiết vú có hỗ trợ của hút chân không dưới hướng dẫn siêu âm là một kỹ thuật hiệu quả và an toàn trong chẩn đoán và điều trị các tổn thương tuyến vú BIRADS 3, 4, 5.
KẾT QUẢ PHẪU THUẬT NỘI SOI ĐẶT MẢNH GHÉP HOÀN TOÀN NGOÀI PHÚC MẠC ĐIỀU TRỊ THOÁT VỊ BẸN TẠI BỆNH VIỆN ĐA KHOA TRUNG TÂM AN GIANG
Authors: Lê Huy Cường , Nguyễn Thành Phúc , Hồ Nguyễn Hoàng , Trần Nguyễn Quang Trung
Published: May 2024

Đặt vấn đề: Phẫu thuật nội soi đặt mảnh ghép hoàn toàn ngoài phúc mạc điều trị thoát vị bẹn là một trong những phẫu thuật được thực hiện nhiều nhất tại Bệnh viện Đa khoa Trung tâm An Giang. Mục tiêu nghiên cứu: Đánh giá kết quả của phẫu thuật nội soi đặt mảnh ghép hoàn toàn ngoài phúc mạc điều trị thoát vị bẹn tại Bệnh viện Đa khoa Trung tâm An Giang. Đối tượng và phương pháp nghiên cứu: Hồi cứu phối hợp tiến cứu 307 bệnh nhân trên 18 tuổi, được chẩn đoán thoát vị bẹn một hoặc hai bên nhập viện từ 01/01/2018 đến 30/09/2023. Kết quả: Tỷ lệ nam/nữ là 304/3, tuổi trung bình là 53,4 ± 17, thời gian mổ trung bình là 38,5 ± 10 phút, điểm đau trung bình ngày hậu phẫu thứ 1 là 2.61 ± 0,6 và của ngày hậu phẫu thứ 3 là 1,04 ± 0,2 điểm, thời gian nằm viện trung bình là 2,48 ± 0,9 ngày. Tất cả bệnh nhân được tái khám sau mổ 1 tuần, ghi nhận biến chứng nang thanh dịch sau mổ là 1 trường hợp (0,33%). 67,8% trường hợp theo dõi thời gian xa sau mổ với thời gian trung bình là 35,08 tháng; có 2 trường hợp đau vùng bẹn mạn tính (0,96%), 1 trường hợp dị cảm vùng bẹn (0,48%) và 1 trường hợp tái phát (chiếm 0,48%). Kết luận: Phẫu thuật nội soi ngoài phúc mạc điều trị thoát vị bẹn có thời gian mổ ngắn, ít đau, ít biến chứng, thời gian nằm viện ngắn, an toàn và hiệu quả trong thời gian dài.
ĐÁNH GIÁ CHẤT LƯỢNG CUỘC SỐNG VÀ MỘT SỐ YẾU TỐ LIÊN QUAN Ở BỆNH NHÂN TRÀO NGƯỢC DẠ DÀY - THỰC QUẢN TẠI BỆNH VIỆN ĐA KHOA VĨNH LONG NĂM 2023
Authors: Nguyễn Trọng Thi , Lê Kế Nghiệp , Huỳnh Nguyễn Phương Quang
Published: May 2024

Đặt vấn đề: Trào ngược dạ dày-thực quản là một trong những rối loạn tiêu hóa phổ biến, tuy nhiên có rất ít nghiên cứu đến các khía cạnh về chất lượng cuộc sống của bệnh nhân. Mục tiêu nghiên cứu: Đánh giá chất lượng cuộc sống và một số yếu tố liên quan ở bệnh nhân trào ngược dạ dày-thực quản. Đối tượng và phương pháp nghiên cứu: Nghiên cứu mô tả cắt ngang trên 450 bệnh nhân trào ngược dạ dày - thực quản tại Bệnh viện Đa khoa Vĩnh Long năm 2023. Chất lượng cuộc sống được đánh giá dựa vào thang đo Quality of Life in Reflux and Dyspepsia. Kết quả: Tỷ lệ bệnh nhân trào ngược dạ dày - thực quản tại Bệnh viện Đa khoa Vĩnh Long năm 2023 có chất lượng cuộc sống không tốt là 27,6%. Điểm Quality of Life in Reflux and Dyspepsia trung bình là 5,430,77. Các bệnh nhân trào ngược dạ dày-thực quản có thời gian mắc bệnh trên 1 năm, bệnh nhân có thói quen hút thuốc lá và thời gian hoạt động tĩnh tại trên 1 giờ/ngày có chất lượng cuộc sống kém hơn so với nhóm còn lại, sự khác biệt có ý nghĩa thống kê. Kết luận: Chất lượng cuộc sống của bệnh nhân trào ngược dạ dày-thực quản bị ảnh hưởng bởi thời gian mắc bệnh kéo dài, các thói quen hút thuốc lá, hoạt động tĩnh tại.
NGHIÊN CỨU MỐI LIÊN QUAN GIỮA CHỈ SỐ KHỐI CƠ THỂ VỚI HUYẾT ÁP VÀ MỘT SỐ YẾU TỐ LIÊN QUAN Ở SINH VIÊN NĂM 2 NGÀNH Y KHOA TẠI TRƯỜNG ĐẠI HỌC Y DƯỢC CẦN THƠ NĂM 2023
Authors: Trang Hồng Khoa , Nguyễn Chiến Thắng , Tô Minh Thiện , Võ Minh Dung Ngân , Võ Trần Phượng Tường
Published: May 2024

Đặt vấn đề: Trên thực tế lâm sàng, chỉ số khối cơ thể (BMI) là một chỉ số đặc biệt quan trọng khi thăm khám, khảo sát sự liên quan giữa BMI với huyết áp là cần thiết nhằm đưa ra một chỉ số BMI trong giới hạn bình thường để phòng tránh mắc các bệnh lý sau này. Bên cạnh đó, sinh viên là đối tượng cần được quan tâm khi đề cập đến vấn đề dinh dưỡng và sức khoẻ, đặc biệt là sinh viên ngành Y khoa. Mục tiêu nghiên cứu: Mô tả mối liên quan giữa BMI với huyết áp và một số yếu tố liên quan ở sinh viên năm 2 ngành Y khoa tại Trường Đại học Y Dược Cần Thơ năm 2023. Đối tượng và phương pháp nghiên cứu: Nghiên cứu mô tả cắt ngang trên 310 sinh viên Y khoa năm 2 tại Trường Đại học Y Dược Cần Thơ năm 2022-2023. Kết quả: Chỉ số BMI có mối liên hệ với huyết áp tâm thu (HATT) và huyết áp tâm trương (HATTr) qua phương trình sau: HATT=71,41+1,8xBMI (R2=0,21, p<0,05), HATTr = 52,02 + 0,81xBMI (R2=0,09, p<0,05). Tỷ lệ sinh viên biết tác hại của việc không ăn trước khi tới trường là 96,13%, tỷ lệ sinh viên biết tác hại của việc không vận động thường xuyên chiếm 96,77%. Kết luận: BMI tăng có khả năng làm tăng huyết áp. Sinh viên có kiến thức, thái độ đúng về thực hành dinh dưỡng chiếm tỷ lệ cao, hầu hết sinh viên có kiến thức đúng về thực hành chế độ vận động nhưng thái độ đúng về thực hành chế độ vận động chiếm tỷ lệ chưa cao.
ARTIFICIAL INTELLIGENCE AND MACHINE LEARNING METHODS FOR PREDICTING THE STOCK MARKET
Authors: Chetia Subrat
Published: May 2024

It is highly challenging to anticipate anything when there is a non-linear association between inputs and outputs. One of the most difficult tasks for financial analysts is to predicting the stock market values because of the environments' inherent noise and their high volatility in relation to market movements. The goal of this article is to demonstrate the use artificial intelligence and machine learning techniques to address the issue of stock market prediction. The two basic analysis that can be applied to model the estimation of the stock market are fundamental analysis and technical analysis. Regression algorithms are generally applied in the technical analysis to forecast the movement of the stock price at the closing of a business day based on past data. Contrarily, in the fundamental analysis, the public attitude is classified using a machine learning algorithm according to news and social media
MACHINE LEARNING – A NOVEL APPEAL FOR SUSTAINABLE AGRICULTURE
Authors: S Janarth , S.G Shandeep , R Tamilmounika , D Pandiya Kumar , M Sabthapathy .
Published: May 2024

Machine learning is emerging globally in all fields. This chapter provides the information on the basic concepts on machine learning techniques and its applications in agriculture and to manage the crops effectively by giving inputs to the crops in a needed time to avoid wastage of inputs, the yield of crop is also increased and monitored using machine learning techniques.
EFFECTIVE CRITICAL AND MEMBRANE COLLISION WITH THE HELP OF 3- DIMENSIONWITH THE SEVERALINTEROSSEOUS VARIATION
Authors: A P Dr. Jyothi , T Pavan . , Nath Himadri
Published: May 2024

Day to day our life style is changes so our body membrane is effected by several other environment factor and unhealthy life style .We are definitely unclear how our body interosseous membrane effected day by day .The main purpose of this research is to identify What are the factor are heavily responsible to creating the problem in foream deficit .We are using 3d several simulation in kinematic which is actively detect in several deformities which should be in 5 degrees in4 directions .To analysis the external critical bone collision we mustbe effectively analysis some other factor like how our body bone collision occur.This type of bone collision generally increase in several factor example external variation of the whole body IOM which is generally consider in 6 parts which is generally detect 32 external type of foream deformities .This 6 parts also increase supination in IOM with nearly unchanged bone collision .This type ofadvance kinematics analysis gives us for better understanding whichis generally consider in various several types of ligament and bone relatedresearch
ARTIFICIAL INTELLIGENCE HEALTHCARE TECHNOLOGIES IN SURGERY
Authors: Praveena Salmani , Kumar Gireesh , A. P Dr. Jyothi , Anand T. Vinith
Published: May 2024

Since the middle of 1990s, Surgery has been done by Robotics, they called as Surgical Robots. The surgical robots are having been employees of a hospitals and medical facilities. To the patients, there are more benefits after finding the surgical robots in place of conventional techniques of surgery, like lower infection and faster and fit recoveries. But these methods are less comfortable and most dangerous because of robot machines are doing surgery instead of human’s operation. The Development and progress of a robotic surgical technology, are focuses on memory and cognitive capacity of surgeons. The Surgeons are the more experience in surgery, because humans have a got experience because understanding the situations and conditions. The Robots are working on the basis of computer programs and coding. The decades the robot’s systems and surgeons are both serve in complex and internal anatomy of the have come together to fruition for surgery’s. The new technologies are made a robotic surgery are most effective, low cost, efficient use of a surgical instrument in manner because of some new sensors they lead into a fast surgery’s that gives more surgical treatment in fast treatment, next surgery can be done by early as possible. The technologies are developed in Artificial Intelligence techniques like Deep learning, Machine learning, Pattern recognition etc., they are mint to be innovation of an artificial intelligence technologies. Now we are doing some machine learning in artificial intelligence robotic surgery, as well as new technologies they are leads into the new challenges
EXTENDED GENERALIZED ELGAMAL CRYPTOSYSTEM FOR SECURE M2M COMMUNICATION
Authors: Murthy Dr. B. Satyanarayana , Srinivasarao Dr. Tumma , Rao Dr. P. B. V Raja , Rajasekhar Dr. K.
Published: May 2024

Elliptical Curve Cryptography (ECC) is one of the most prominent public-key cryptosystem based on the elliptical curve discrete logarithm structure over finite fields. The ECC elliptical curve is better-known than other public encryption systems for its smaller keys sizes, quicker encryption, better security and better safety (like RSA). ECC is suitable to secure data transfer (e.g. ElGamal), secure key sharing and authentication and verification of the digital signature (ECC Diffie-Hellman). The protection capability of the ECC is depends up on a trapping function, provided that the discrete logarithm of a random elliptic curve element cannot be found with regard to a publicly known base point. This is known as Elliptic Curve Discrete Logarithm Problem (ECDLP) it is treated to be mathematically difficult to solve
USEFUL EMERGING TRENDS FOR COMMUNICATION SKILL
Authors: Autkar Prof. Nilesh Digamber
Published: May 2024

The chapter throws light on some useful emerging trends for communication skill. Communication has become an indispensible part of every field. It is the only effective means that interconnects one thing with the other. With the advancement of technology the current age is evolving with different emerging trends that are useful for communication skill. In the modern age, the present generation is expecting innovations and effectiveness in communication process. No doubt, communication is most useful at state, national and international level to establish relations with one another. Language is the powerful means of any communication. The present chapter explores some emerging trends which are useful for effective communication skill
EFFECTIVE COMMUNICATION SKILL: NEED OF TODAY
Authors: Khandagale Dr. Archana B.
Published: May 2024

Communication means giving, receiving or exchanging ideas, messages and information through the help media. Communication has acquired an important place in every field of the world because without communication skills nobody can establish relation with the strange people for any purpose. In this globalized era advancement is observed in the fields of science and information technology. In the development of every country communication plays an important role. Without communication nobody can exchange ideas, feelings, thoughts, information with anyone. Hence communication is the only medium which can link one man with another, one state with another and one country with the country. For strong results we need to have strong communication for any purpose. Effectiveness in any fields brings effective results. So for strong responses in any sector effective communication has become necessary
COMMUNICATION IN UNKNOWABLE JUNGLE IN THE HUNGRY TIDE
Authors: Watkar Dr Tushar Vishweshwarrao
Published: May 2024

In man-animal relationship, Amitav Ghosh's textual practice appears to play a similar role. In The Hungry Tide he seeks the essence of a non-confrontational, co-operative communication between humanity and nature. Many issues have been discussed in this novel. One of them is how humans communicate a complex and dangerous ecosystem with animals--dolphins, tigers, snakes, and crocodiles. In the Sunderbans, tide-country, home to Bengal-tiger, crocodiles, snakes and a few people are trying to search out a living with proper communication between them. In this novel Ghosh describes the communication of Piyali and dolphins, and other peoples in unknowable jungle
A COMPACT CIRCULAR PATCH MIMO ANTENNA WITH IMPROVED RADIATION EFFICIENCY FOR 5G MILLIMETER-WAVE APPLICATIONS
Authors: Singh Ajit Kumar , Mahto Santosh Kumar , Kumar Praveen , Sinha Rashmi
Published: May 2024

A circular patch dual element Multiple-input-multiple-output (MIMO) antenna with an impedance bandwidth of 9.48GHz (20.83-30.31 GHz) using a partial ground plane is proposed for 5G millimeter wave applications. The envelope correlation coefficient (ECC), diversity gain (DG), mean effective gain (MEG), total active reflection coefficient (TARC), and channel capacity loss (CCL) of the MIMO antenna are addressed, and the obtained values are 0.012, 9.98dB, 3dB, - 16dB, and 0.20 bits/sec/Hz, respectively. At 30GHz, the maximum gain of 8.05dBi is attained. Furthermore, a radiation efficiency of greater than 93% is attained in the frequency range of 20.83 to 30.31 GHz. The suggested MIMO antenna is built on a Rogers RO 4003 substrate with dimensions of 25×20×0.76mm3 , a dielectric constant of 3.55, and a loss tangent of 0.0027
A MINITUARIZED ELLIPTICAL PATCH MIMO ANTENNA WITH LOW MUTUAL COUPLING FOR S BAND APPLICATIONS
Authors: Kumar Praveen , Choubey Arvind , Sinha Rashmi , Singh Ajit Kumar , Mahto Santosh Kumar
Published: May 2024

This paper offers a elliptical patch dual element multiple input multiple output (MIMO) antenna with an impedance bandwidth of 3.35 GHz (2.17-5.57 GHz) using a defected ground structure (DGS) is proposed for S and C-band applications. The proposed DGS structure provides - 51.15 dB of isolation at 2.62 GHz and a gap of 10 mm between adjacent antenna elements. The write-up contains a thorough discussion on design, simulation, and performance analysis. Envelope correlation coefficient (ECC) was less than 0.002, diversity gain (DG) greater than 9.99 dB, total active reflection coefficient (TARC) less than 0.35, mean effective gain (MEG) less than -3 dB, and channel capacity loss (CCL) less than 0.3 was achieved. The proposed MIMO antenna is favorable for S-band and C-band applications such as Bluetooth, Wi-Fi, WiMAX, 4G and 5G
EFFICIENCY OF SOLAR PV ENHANCED BY USING PHASE CHANGE MATERIAL (PCM)
Authors: Karthikeyan Dr. G. , Vinoth Dr. R. , Ganesh S. Sankar , Athimoolam S.
Published: May 2024

The electrical competence of a solar photovoltaic (PV) is extremely based on its temperature. Once the temperature of a PV enhanced, its electric competence reduced. By the help of Phase Change Material (PCM) is one of the greatest hopeful apparatuses present days to decrease and control the temperature of a PV plate and to enhance its electric competence. The present effort is related on investigational method of the consequence of using clean PCM (like-Glauber Salt, nano materials, natural materials) on the thermal Characteristics and electrical operation of a PV panel. A passing power stability is similarly obtainable to analyse the structure thermal Characteristics and associate it to the electric productivities. To advance, a suitable investigational system was developed and two models were constructed and verified. Model 1 is shaped from a sample case and contains of a viewpoint, a PV panel without PCM. Models 2 are intended with a container additional at the back face of individually PV panel that holds clean PCM and mutual PCM correspondingly
REVIEW OF IMAGE ENHANCEMENT IN SPATIAL VS, FREQUENCY DOMAIN
Authors: Mishra Dr. Anita Pati , Bajpai Ms. Monika Dixit
Published: May 2024

Image enhancement is a critical and difficult step in the processing of digital images.The fundamental aim of image enhancement is to uncover the hidden components in a picture. Picture enhancement improves the quality of the image for human presentation. Enhancement procedures include things like increasing contrast, eliminating noise and blur, and revealing details.Spatial domain and frequency domain picture enhancement are the two basic types.The two tactics discussed in this chapter are contrasted with ones that are comparable to them.The aim of image enhancement is to make images simpler for research to comprehend or perceive or to provide "better" input to other automated image processing techniques, like face recognition-based biometric techniques, among others.Face recognition, matching fingerprints, and early biology applications. Picture enhancement is one of the most important and difficult steps in digital image processing. The main aim of image enhancement is to reveal the hidden details in a picture.The quality of the image is improved for human presentation by picture enhancement.Increasing contrast, eliminating noise and blur, and illuminating features are a few examples of enhancement operations.Spatial domain and frequency domain are the two main types of image enhancement.This chapter contrasts these two approaches with ones that are comparable to them.The goal of image enhancement is to make images simpler for people to interpret or perceive or to provide "better" information to other automated image processing techniques, including biometric techniques that use face recognition, among others.Face recognition, fingerprint comparison, and preliminary biological terms biometric techniques that use face recognition, among others like matching fingerprints, recognising faces, and morphological applications
DUAL BAND HYBRID DRA ANTENNA DESIGN FOR WLAN APPLICATION
Authors: Ch V. M. S. N Pavan Kumar , Ramana Venkat , Kumari B. Siva , Prasad S. Harichandra
Published: May 2024

The Dielectric resonator seems to be a good alternative for Micro-strip Patch Antenna (MPA) due to its ability to resonate at high frequencies more efficiently. When only DRA is used we require high complex structures such as superstrates to get the optimum results at the desired frequencies, so we prefer Hybrid DRA over simple DRA. Hybrid DRA means there is a micro-strip patch which is used for exciting the DR and since the radiating element is DR there will be no conductor losses and surface waves. The impedance bandwidth is improved by 10% when we use Hybrid DRA. The design is simulated using HFSS tool for the two resonant frequencies at 2.8 GHz and 5.6 GHz
INTEGRATED CIRCUITS FABRICATION TECHNIQUES FOR C-MOS, N-MOS AND BJT
Authors: Bhardwaj Shivam , Shivam Mr , Varshney Jay , Kaur Inderpreet , Singh Hari Kumar
Published: May 2024

Integrated Circuit designs will be realised in one of a number of possible fabrication processes. The circuit fabricated on a die will then be packaged within a suitable protective housing. The particular fabrication process to use will be dependent on a number of issues including cost, availability, experience in the use of, and circuit component capabilities. Complex processes and technology utilizing minute dimensions are essential to the fabrication of today’s high density integrated circuits. The key unit processes for circuit fabrication outlined within this paper are chemical vapor deposition, oxidation, diffusion and ion implantation, metallization and lithography. The parallel advances of these processes have led to a new era of very large scale integrated (VLSI) circuits with low micrometer to submicron features that result in denser, faster and more complex devices. The most critical advances, however, have been in the areas of lithography and etching, where electron-beam systems, along with plasmaassisted etching techniques, have enabled further miniaturization. New materials have been developed, including the low resistivity silicdes. Packaging advances also translate into major production cost savings. Finally, the interaction of computer aided design, process simulation, production/process control, in-process measurement, characterization and final testing play a critical role in VLSI fabrication technology
The role of career empowerment in improving performance from the viewpoint of Ocean Company employees in Malaysia
Authors: Hatem Khadega , Al-Radhi Mohammed , Al-Hosaini Fahmi
Published: May 2024

The study's aim was to discover the relationship between job empowerment and improved performance in a Malaysian ocean company, and the study group was chosen from a group of 30 employees at various levels of management for Ocean Tourism and Travel Malaysia. The descriptive analytical approach was used with data from the study tool to achieve the study's objectives. Many statistical methods, such as the Excel statistical analysis programme, the arithmetic average, and the Pearson coefficient, have been used to analyse the data and hypotheses of the study in order to achieve the study's objectives, where studies have shown a strong and positive relationship between job empowerment and improved performance based on employee opinions in the company. which is distinguished by mutual trust and the presence of shared values and objectives, as well as the presence of strong statistically significant relationships between job empowerment and improved performance in all of its dimensions (communication and information sharing, team building, delegation, motivation). This significantly aided the company's achievement of job empowerment, and the results demonstrated that motivating employees, i.e., material and moral motivation, has a significant impact on the job performance of the company's employees. Based on these results, the study suggested that upper management pay more attention to communication development, encourage communication within the company, and share information between all levels of management. This will have a positive effect on job performance and employees' ability to come up with new ideas.
The role of job empowerment in improving organization performance: a review
Authors: Hemag S. M. , Carl A. R. , Samoil M. N.
Published: May 2024

This paper's aim is to examine the impact of Total Quality Management practises like employee empowerment on business outcomes. Several of the most current and relevant studies were examined. According to the findings, empowerment positively affects the performance and results of businesses across a variety of dimensions. This discussion has revealed and addressed a few observations and gaps. Successful Complete Quality Management adoption depends greatly on managers' capacity to empower their team. Because The Total Quality Management develops an atmosphere whereby everyone contributes together to enhance employment status, every employee feels that they have a say in the process.
Higher education factors and issues in ASEAN countries: a review
Authors: Yingxin Ma , Al-Hada N. M. , Haoran Mao
Published: May 2024

This paper concerns the higher education issue and its related matters in Association of Southeast Asian Nations (ASEAN). A number of factors that play important roles in enhancing the higher education developments in ASEAN have been considered. Selected papers from literature have been reviewed in order to give readers more highlights on influencing factors that positively contribute to higher education developments in ASEAN. Cited papers have reported several initiatives implemented by many regional and international players “organizations” to enhance Higher Education Institutes (HEIs) in ASEAN. In this paper, certain papers have been collected and reviewed based on significant criteria. Papers whose keywords focus on “higher education” in “ASEAN” have been the main keyword-retrieved papers. There have been further criteria applied to selection procedure of cited papers and have been discussed thru this paper.
The Function of Zakat in Islamic Economics: An Analytical Study
Authors: Al-Hamed Shoroq
Published: May 2024

The paper focuses on the significant role of Zakat in the Islamic economic system and how it can be effective in solving various economic issues, particularly poverty eradication. The priority of Islamic Sharia is to ensure everyone has a dignified life by using Zakat funds to their fullest potential. The key aspects discussed are defining Zakat, its conditions, and its economic impact, as well as addressing economic problems like recession, inflation, and unemployment. The objective of the study is to transform these economic challenges into positive aspects that contribute to economic development and foster a robust Islamic society with a minimal presence of poverty and unemployment. Zakat's significance lies in its contribution to achieving economic equilibrium, just wealth distribution, and enhancing the overall welfare of society. The effective collection and distribution of Zakat funds for investment projects stimulates consumption, boosts production, generates employment, and balances societal aspects, particularly in the economic realm. The study's problem statement focuses on comprehending the importance of Zakat in Islamic economics and its role in fostering a highly efficient economy. The aim is to clarify the nature of Zakat, its obligatory status in Islam, its effect on demand and consumption, and its contribution to solving economic issues and ensuring equitable economic development. The study's value lies in pointing out the importance of Zakat in the creation of a prosperous and successful economy. By redistributing wealth in a fair way, eliminating poverty and unemployment, and providing everyone with a dignified life, we can foster growth and progress within a solid foundation. The study's methodology is based on a descriptive-analytical approach that relies on religious sources (Quran and Hadith) in addition to the previous studies to emphasize Zakat's importance and its role in achieving effective economic development within an Islamic framework.
A Tour of the Jevons Paradox: How Energy Efficiency Backfires
Authors: Fix Blair
Published: May 2024

Your browser does not support the audio tag. Download: PDF | EPUB | MP3 | WATCH VIDEO [R]esource productivity can — and should — grow fourfold. … Thus we can live twice as well — yet use half as much. —

Factor Four

, 1997 When it comes to our sustainability problems, striving for greater resource efficiency seems like an obvious solution.
The first employees of the Natural History Museum in Belgrade
Authors: Maran-Stevanović Aleksandra
Published: May 2024

For this edition we have prepared the biographies of the curators, preparators and associates-volunteers whose knowledge, experience, great commitment and enthusiasm have made an exceptional contribution in the first decades of the 20th century, not only to the establishment of the initial collections and the development of certain scientific disciplines, but also to the reputation of the Natural History Museum as one of the leading scientific, cultural and educational institutions in Serbia. This contribution also completes the first thematic unit on the history of the Museum, started in 2020 to commemorate the 125th anniversary of its foundation.
Morphostratigraphical correlation of the Sava River sediments near Belgrade and the Južna Morava terraces
Authors: Nenadić Draženko , Bogićević Katarina
Published: May 2024

In the riparian area of the Sava River near Belgrade in the southern part of the Pannonian basin, Pleistocene fluvial deposits have a significant distribution and thickness which varies from 10 to 40 meters. These sediments are almost universally overlain by younger Pleistocene loess sediments or Holocene alluvial deposits, while they are underlain by sediments of Pliocene-Pleistocene age. Pleistocene deposits of similar characteristics form high and middle erosional-accumulative terraces of the South Morava valley system. Beneath the Pleistocene fluvial deposits are pre-Quaternary deposits of different compositions and ages. Although there are significant height differences between the alluvial Pleistocene deposits in the area of the Sava River near Belgrade compared to the high terraces of the Morava River, created as a result of opposite tectonic movements in the northern and southern parts of Serbia. Moreover, the terraces of the Južna Morava were formed in the mountainous areas, while the Sava river sediments near Belgrade are in the lowland area. They cannot be successfully correlated on the basis of their lithofacies and paleontological characteristics. The morphostratigraphical correlation would be useful to be applied first on the relation terraces of the Zapadna and Južna Morava, the results would be correlated with the terraces of Velika Morava, while the Velika Morava terraces can be correlated with the Sava sediments near Belgrade.
Amphibian and reptile fauna of Smederevo Municipality: Recapitulation of 75 years of research
Authors: Urošević Aleksandar , Paunović Gordana
Published: May 2024

In this paper, we present the recapitulation of the research of amphibian and reptile fauna in the Smederevo municipality. For Serbia, three amphibian species were for the first time detected in Smederevo - (Triturus dobrogicus, Pelobates balcanicus and Pelophylax lessonae). In the literature, occurrence of Vipera berus was also mentioned. Since Smederevo is an important industrial centre, many amphibian and reptile habitats were lost due to urbanization, degradation and pollution, and surface waters were especially affected. Habitat degradation probably led to the local extinction of population of the Adder. Still, increased field effort and inclusion of citizen science led to the first discoveries of Pelobates fuscus and Coronella austriaca in Smederevo, and re-confirmation of the historical entries of Salamandra salamandra and Triturus dobrogicus. The remaining species were mapped to a greater extent, and some species which were previously known from only a few records (Lissotriton vulgaris, Emys orbicularis and Zamenis longissimus) are now mapped in much wider area. The presence of human introduced reptile species such as Trachemys scripta ssp., Mediodactylus kotschyi and Pogona vitticeps is also recorded, with Kotschyi's gecko probably being naturalized. Future research should focus on re-confirmation of the remaining historical records (Pelobates balcanicus) and identifying more habitats of the rare and vulnerable species and protecting them.
Growth hormone deficiency in adults: Diagnosis and treatment
Authors: Doknić Mirjana
Published: May 2024

Growth hormone deficiency (GHD) in adults is a rare clinical syndrome with an incidence of 1.4-4.2 per 100,000 persons per year and a prevalence of 350/million. It is characterized by unfavorable body composition, reduced muscle, and bone mass, lower capacity to endure physical effort, abnormal lipid profile, increased cardiovascular risk and poor quality of life. Despite these clinical manifestations, GHD is often unrecognized, so its diagnosis is often missed or delayed. The reason is the non-specific and subtle clinical characteristics, which require the testing of growth hormone (GH) secretion with stimulation tests. Two tests are in use, the insulin tolerance test and the glucagon test, which require the experience of the team performing them. Recently, an oral secretagogue of growth hormone - macimorelin has been used, which is simple test to perform and is safe for the patient. Insufficient secretion of GH in adults can be manifested as isolated or in combination with deficits of other pituitary hormones. However, GH is the most frequently detected hormonal deficit in adults as part of hypopituitarism. Causes of GHD can be congenital or acquired. Congenital reasons are the result of disorders of the embryogenic development of the pituitary gland and hypothalamus, and acquired are the most common complications of tumors of the sellar region and head trauma. Patients with GHD have an increased mortality rate compared to the general population. The causes of the shortened life span of these patients depend on the etiology of hypopituitarism, the applied therapy of tumors of the hypothalamus/pituitary region (surgery, radiotherapy), and the replacement of other missing pituitary hormones. During the last two decades, growth hormone therapy in adults has entered routine clinical practice. The beneficial effects of this substitution are reflected in the body composition, skeletal system, metabolic status, and improvement of the quality of life. GH replacement in adults returns the mortality rate to that expected for age in the general population. Due to the known proliferative, angiogenic, and anti-apoptotic properties of GH, there is still some caution regarding the recurrence of hypopituitarism-causing tumors or the appearance of new tumors during GH replacement. However, large and long-term follow-up studies of adults on GH therapy have shown a high safety profile of this treatment. Daily injections of GH were until recently the only way of its application, and now longacting weekly forms have been marketed, which will significantly improve adherence to this therapy.
Therapeutic approach in the treatment of dyslipidemia: Novelties and challenges
Authors: Lalić Katarina , Rajković Nataša , Popović Ljiljana , Singh-Lukač Sandra , Rasulić Iva , Petakov Ana , Krstić Milica , Mitrović Marija
Published: May 2024

Cardiovascular diseases are the leading cause of morbidity and mortality worldwide. Dyslipidemia is a significant risk factor for the development of cardiovascular diseases, and lowering the level of serum lipids leads to a reduction in cardiovascular morbidity and mortality. The primary therapeutic target is LDL-cholesterol (c). Statin therapy is often not sufficient to achieve LDL-c target values, so it is necessary to combine them with other lipid-lowering drugs. However, after it was noticed that unwanted cardiovascular events occurred despite the achieved target values of LDL-c, attention was paid to the residual cardiovascular risk. Therefore, there was the development of new therapeutic strategies targeting triglyceriderich lipoproteins, lipoprotein (a), and apolipoproteins CIII and B. The results of early phases of randomized clinical studies indicated a significant effect of new drugs on reducing cardiovascular risk. This review article aims to present existing therapeutic options for the treatment of dyslipidemia, as well as new therapeutic agents and future perspectives for the treatment of these disorders.
Climate change and human health
Authors: Ilić Nevenka
Published: May 2024

Compared to the end of the 19th century, the average temperature of the earth's surface is higher by 1.1o C, and the last decade (2011-2020) was the warmest recorded since 1850. Mortality rate to high temperatures increases by 1-4% for each degree of increase in air temperature due to dehydration, heatstroke, and worsening of existing respiratory and cardiovascular diseases. Natural disasters such as floods, hurricanes, and storms are associated with an increase in drowning, and injuries, psychological disorders, but also contamination of water and food with an increased risk of infectious diseases. Temperature changes affect the interaction of vectors and hosts, changes in ecosystems, and the existence of new species in a certain area, which leads to an increase in diseases transmitted by mosquitoes (malaria, dengue, chikungunya, and West Nile virus), ticks (Lyme disease), flies (leishmaniasis), snails (schistosomiasis), etc. Animal and plant diseases, in addition to natural disasters and pollution, further increase the reduction in the amount of food, which results in an increase in malnutrition of the human population, from which 3.5 million people die every year. Frequent fires (increase in fine particles 2.5-10 mm and dust) and chemical air pollution (increase in the concentration of sulfur oxides, nitrogen oxides, ozone, and fine particles smaller than 2.5 mm) cause an increase in diseases of the respiratory (asthma, bronchitis, pneumonia, lung cancer) and the cardiovascular system (arteriosclerosis, myocardial infarction, deep vein thrombosis, pulmonary embolism). The change in the pattern of plant vegetation, with the increase in the concentration of pollen in the air, leads to an increased incidence of allergic diseases, which will reach the level of a pandemic in 2050 with about four billion people suffering from asthma, allergic rhinitis and atopic dermatitis. Exposure to algae biotoxins in marine animals, water, or air causes short-term memory disorders and worsening of Alzheimer's and Parkinson's diseases, and chemical substances and heavy metals (released from destroyed warehouses in disasters or sewage spills) as well as insecticides and pesticides have immunotoxic, genotoxic and carcinogenic effect. Mental disorders that occur after natural disasters range from acute traumatic stress to chronic stress conditions, such as post-traumatic stress disorders, depression, anxiety, psychosomatic disorders, sexual dysfunctions, and alcohol and drug abuse. The long-term effects of climate change (natural disasters, sea level rise, destruction of the economy, reduction of natural resources of food, water, fuel, risk of local wars) lead to migration, and by 2050 the migration of about 200 million people is expected.
Analysis of the relevance of antibiotic therapy and the experience of prescribers in the pediatric department at Bouaké University Hospital (Côte d'Ivoire)
Authors: Balayssac Eric , Djadji Ayoman , Brou N'Guessan , Bertrand Sangbé , Assé Kouadio
Published: May 2024

Introduction: Infectious diseases, particularly among pediatric populations, represent a significant global health problems. Rational antibiotic use is paramount for achieving optimal patient outcomes, but prescribing antibiotics in pediatric settings is a multifaceted task influenced by various factors, including prescriber's knowledge and experience. Aim: This study, conducted at Pediatric Department at Bouaké University Hospital (Côte d'Ivoire) (CHU), aimed to investigate the relationship between prescriber's experience and the appropriateness of antibiotic prescriptions for pediatric patients. Material and Methods: The academic study lasted from June 1, 2019, to July 31, 2019, within the pediatric department of the Bouaké University Hospital. It included all children age 0 to 15 years, who were receiving antibiotic therapy for at least 48 hours. Evaluation of antibiotic therapy relied on criteria from authoritative references in infectious diseases. Antibiotic therapy was deemed appropriate if it was clinically justified for treating the specific infectious disease. Prescribers' experience-related variables, including years in medical practice, specialization level, and other pertinent factors, were integrated into the analysis to gain insights into their influence on the appropriateness and compliance of antibiotic prescriptions. Data analysis was executed using EPI INFO 2007 version 7.1.3.3 software, employing statistical tests such as Pearson's chi-square and Fisher's exact test. Results: The study unveiled that the incidence of antibiotic prescription among hospitalized children over the two-month period was 31.28%. Most prescribers had approximately 2 years of experience, with an average overall experience of 3.25 years. Male prescribers slightly outnumbered their female counterparts, and specialist physicians constituted the majority of prescribers (70.94%). Compliance was markedly higher among older children (46.76%) in comparison to infants (2.34%). Beta-lactam antibiotics were the most frequently prescribed class, accounting for 62.72% of antibiotic prescriptions. Non-compliance, particularly concerning dosage, was prevalent, contributing to 33.05% of cases, with betalactams being a prominent contributor. Conclusion: Although the influence of prescriber experience on antibiotic appropriateness remained inconclusive, the significance of rational antibiotic use remains pivotal. These findings underscore the necessity for continual efforts to optimize antibiotic therapy in pediatric care, endorsing evidence-based prescribing practices to safeguard the efficacy of antibiotics for future generations.