bluuebunny/crossref_metadata_2025 huggingface dataset:
EFFICACY OF PLATELET-RICH PLASMA INTRA-ARTICULAR INJECTION IN ADJUNCTION TO CONVENTIONAL THERAPY FOR ASEPTIC NECROSIS OF FEMORAL HEAD
Authors: Le Thuy Duong , Luu Thi Binh , Nguyen Minh Nui
Published: April 2023

Objectives: To evaluate the results of autologous platelet-rich plasma (PRP) intra-articular injection combined with medical therapy in treating aseptic necrosis of the femoral head (ANFH) after 5 months. Subjects and methods: Non-control interventional study, comparing before and after treatment for 30 patients (47 sterile necrotic femoral heads) who received 2 injections of PRP one month apart. Evaluation of clinical symptoms and images of necrosis on magnetic resonance imaging of the hip joint after 5 months. Results: The mean Visual Analogue Scale (VAS) decreased from 7.03 ± 1.90 to 3.77 ± 2.64, and the rate of severe pain decreased from 63.3% to 23.3%. The average range of motion of the hip joint increased (flexion from 87.17 ± 13.69 to 101.50 ± 14.69; abduction from 21.50 ± 5.89 to 28.50 ± 7.09; external rotation from 28.33 ± 4.01 to 34.00 ± 5.15; internal rotation from 30.33 ± 4.90 to 34.17 ± 4.93 degrees) with p < 0.001. According to Merle D'Aubigné, the ability to walk score increased from 4.05 ± 0.83 to 4.95 ± 0.76 (p < 0.001). Magnetic resonance imaging showed the rate of bone marrow edema decreased from 66.7% to 40.0% (p < 0.05), four sterile necrotic femoral heads from stage III to stage IV. Conclusion: The results of autologous PRP intra-articular injection combined with medical therapy in treating ANFH have markedly improved analgesia and motor function.
KẾT QUẢ SỚM PHẪU THUẬT NỘI SOI KHÂU LỖ THỦNG LOÉT DẠ DÀY-TÁ TRÀNG TẠI BỆNH VIỆN ĐA KHOA TỈNH BÌNH DƯƠNG
Authors: Mai Đức Hùng , Lê Trọng Đại , Nguyễn Văn Tính , Dương Tấn Tài , Lê Văn Lương , Đỗ Thị Thu Mai
Published: April 2023

Mục tiêu: Đánh giá kết quả sớm phẫu thuật nội soi (PTNS) khâu lỗ thủng loét dạ dày-tá tràng. Đối tượng và phương pháp: Nghiên cứu cắt ngang trên 97 bệnh nhân (BN) viêm phúc mạc do thủng loét dạ dày-tá tràng được chỉ định PTNS khâu lỗ thủng tại Bệnh viện Đa khoa tỉnh Bình Dương từ 01/2021 - 3/2022. Kết quả: PTNS khâu thủng ổ loét dạ dày-tá tràng ở 97 BN gồm 83 BN nam (85,6%) và 14 BN nữ (14,4%). Tuổi trung bình 41,25 ± 14,66, nhỏ nhất 15 tuổi, lớn nhất 72 tuổi. Tỷ lệ thủng loét dạ dày 42,3%, thủng loét tá tràng 57,7%, bờ lỗ thủng mềm mại 99,0%, kích thước lỗ thủng ≤ 5 mm 93,8%. PTNS khâu lỗ thủng đơn thuần thành công 100%. Thời gian phẫu thuật trung bình là 64,17 ± 16,87, nhanh nhất 40 phút, lâu nhất 120 phút. Phẫu thuật không có tai biến, biến chứng ngoại khoa và tử vong sau mổ. Các biến chứng nội khoa sau mổ, phân loại theo Clavien - Dindo từ II - IV là 5,2%. Kết quả phẫu thuật tốt, khá, trung bình có tỷ lệ lần lượt là 89,7%, 7,2%, 3,1%; kết quả phẫu thuật có liên quan với giới tính và các yếu tố nguy cơ như phân loại ASA, điểm Boey, MPI. Kết luận: PTNS khâu thủng ổ loét dạ dày-tá tràng tại Bệnh viện Đa khoa tỉnh Bình Dương là khả thi, an toàn và kết quả phẫu thuật có liên quan với giới tính, phân loại ASA, MPI.
STUDY ON ROBOTIC VIDEO-ASSISTED THORACIC LOBECTOMY FOR LARGE TUMOR LUNG CANCER
Authors: Nguyễn Viết Đăng Quang , Nam Nguyễn Văn , Vũ Hữu Vĩnh
Published: April 2023

Objectives: To evaluate the efficacy of robotic video-assisted thoracic lobectomy (r-VATS) in patients with locally advanced non-small cell lung cancer. Subjects and methods: r-VATS lobectomy was performed in 79 patients with non-small cell lung cancer treated at Cho Ray Hospital from July 2018 to June 2022. We divided 79 patients into two groups: Group 1 consists of 50 patients with tumors < 5 cm in diameter; group 2 consists of 29 patients with tumors ≥ 5 cm in diameter (cT3 and cT4). Results: The mean operative time of the tumor ≥ 5 cm group was longer than that of the other group (273.7 minutes vs. 255.5 minutes); however, the difference was not statistically significant. The rate of conversion to open surgery in group 2 was significantly higher than in group 1 (17.2% vs. 4.0%, p = 0.046). There was no statistically significant difference in post-operative complications in the two groups. There was no significant difference in the survival rate in the two groups (p = 0.272). Conclusion: r-VATS is effective in lobectomy for non-small cell lung cancer  ≥ 5 cm in size (cT3 and cT4). With tumor size ≥ 5 cm, the surgical time, the rate of postoperative complications, and the post-operative recurrence rate did not increase; however, the conversion rate to open surgery increased.
STUDY ON PLASMA LEPTIN LEVELS IN TYPE 2 DIABETES MELLITUS PATIENTS WITH OVERWEIGHT OR OBESITY
Authors: Nguyen Thu Hien , Pham Thi Hong Thi , Nguyen Oanh Oanh
Published: April 2023

Objectives: To investigate plasma leptin level and its association with some risk factors in type 2 diabetes mellitus (T2DM) patients with overweight or obesity. Subjects and methods: A cross-sectional descriptive and comparable study was conducted on 266 patients assigned into three groups, including T2DM patients with overweight or obesity (study group, n = 104), non-overweight/non-obese atients with T2DM (disease-control, n = 109) and healthy control subjects (n = 53). Plasma leptin levels were quantified with ELISA Kit at the Department of Pathophysiology, Vietnam Military Medical University. Results: For type 2 diabetic patients with obesity/overweight, we found no significant difference in plasma leptin levels between the study group and the disease-control and healthy subjects (0.43; 0.35-0.53 ng/mL vs 0.42; 0.34-0.52 ng/mL and 0.46; 0.36-0.60 ng/mL, respectively) with p > 0.05. In the overweight or obese diabetic patients, there was a positive correlation of leptin levels with age (r = 0.228; p = 0.02), waist circumference (WC) (r = 0.638; p < 0.001), hip circumference (HC) (r = 0.473; p < 0.001), W/H (r = 0.471; p < 0.001) and serum creatinine levels (r = 0.508; p < 0.001). Additionally, plasma leptin levels were higher in overweight/obese patients who were diabetic for more than 5 years (0.47 ± 0.16 ng/mL) than in those with diabetes less than 5 years (0.38 ±  0.15 ng/mL) (p < 0.05). Significantly higher blood leptin levels were noted in  the  group  with hypertension  than  in  normotensive  individuals  (p < 0.05).
CORRELATION BETWEEN AMH LEVEL AND NUMBER OF OOCYTES, EMBRYOS OBTAINED BY AGE GROUPS IN PATIENTS UNDERGOING IN VITRO FERTILIZATION COMBINED WITH PREIMPLANTATION GENETIC TESTING FOR ANEUPLOIDY
Authors: Nguyen Ngoc Diep , Quan Hoang Lam , Tran Van Khoa , Nguyen Thanh Tung , Nguyễn Ngọc Nhất
Published: April 2023

Objectives: To evaluate the correlation between the concentration of AMH (Anti-mullerian hormone) with the number of oocytes and embryos obtained in general and in each maternal age group, in particular on infertile patients undergoing in vitro fertilization (IVF) combined with preimplantation genetic testing for aneuploidy (PGT-A). Subjects and methods: A prospective, descriptive study of 186 infertile patients undergoing IVF - PGT-A, divided into three groups according to their ages at delivery: Group I: less than 30 years; group II: 30-35 years; group III: over 35 years. Results: Generally, AMH level was positively correlated with the number of oocytes and embryos obtained with r of 0.301; 0.193, respectively. At the age of less than 30, there was no statistically significant correlation between AMH and the number of oocytes and embryos (p > 0.05); in group II: AMH had a significant positive correlation with the number of oocytes obtained (r = 0.248, p < 0.05); in group III: AMH had a positive correlation with both the number of oocytes and the number of embryos with r of 0.385; 0.412, respectively (p < 0.05). Conclusion: The general AMH concentration in patients undergoing IVF - PGT-A was statistically significantly positively correlated with the number of oocytes and embryos obtained. In patients 30 - 35 years old, AMH level was significantly weak positively correlated with the number of mature oocytes. In the group over 35 years old, AMH level was statistically significantly positively correlated with the number of oocytes and the number of obtained blastocysts. No significant correlation was found between AMH levels and the number of oocytes or blastocysts in the age group under 30.
LIPOSUCTION FOR THINNING AND EXPANDING DEEP INFERIOR EPIGASTRIC PERFORATOR FLAP IN RECONSTRUCTION
Authors: Hoàng Tuấn Hoàng , Hoàng Thanh Tuấn , Vũ Quang Vinh
Published: April 2023

Objectives: To evaluate the flap thinning efficiency for expanding the deep inferior epigastric perforator flap. Subjects and methods: A clinical study was conducted on ten patients (two retrospectives and eight prospectives) with a diagnosis of a massive scar on the chin and neck postburn to cover the scars with a “thin” deep inferior epigastric perforator flap at the Plastic and Reconstructive Aesthetic Surgery Centre, Le Huu Trac National Burn Hospital, from April 2021 to December 2022. Results: Females were predominant in our study (60%). The mean age was 35.4 ± 9.536 years. The DIEP flap has an average length of 27.8 ± 2.74 cm, a maximum of 32 cm, an average width of 12.3 ± 2.54 cm, and a maximum of 18 cm. All flaps (10/10) survived ultimately; the IV area was well supplied with blood; the wound healed primarily; the flap was soft; the flap color matched the skin near the defect; and the flap thinness reduced significantly with the reconstructive requirements. Conclusion: The liposuction technique is a safe, initial technique that showed clinical effectiveness in the ability to thin and expand the deep inferior epigastric perforator flap while ensuring the functions and aesthetics of the flap.
Does the Modern Usage of “Technology” Denote Something Very Different from What τέχνη Meant for the Ancient Greeks?
Authors: El Khouly Hoda
Published: April 2023

This paper aims to trace the term technology back to its Greek origin, τέχνη. We recognize as its first meaning a mental activity based on knowledge and systematic study which aims to create a technical or a moral work. The present paper argues that the main difference between technology as seen by the classical Greek philosophers and our contemporary technology may lie in the goal that man sets for technology.
Diversity and Density of Small Mammal Species with Different Seasons and Habitats in Federal University Gashua, Yobe State, North-east Zone of Nigeria
Authors: Adam L. I. , Eveso J. O. , Mohammed A.
Published: April 2023

The study examined diversity and density of small mammal species with different seasons and habitats in Federal University Gashua, Yobe State, North-East, Nigeria. The university environment was divided in to four (4) habitat types, namely; University residential area (URA), Acacia woodlot (AWL), Lake Area (LA) and Farm Land (LF) were used for the study. Small Mammal species survey was carried out for the period of six (6) months from August to October, 2022 (wet season) and January, to March, 2023 (dry season). Capture Mark–Recapture (CMR) and indirect observations methods were adopted; Survey was conducted using spring door traps of different sizes set at the habitat types during late evening hours 6:00 pm and checked in the morning hours from 6:00-8:30am for four (4) days per week with each habitat types being visited one day per week, making total of (96) man-days. Each habitat type was visited twice a day (morning and evening) which gave a total of (65;60) trapping night in both wet and dry seasons, the number decreased to 60 trapping night in the dry season was due to the wearing a way of vegetation cover. (32) Visits per habitat types and one (1) night survey per month. A total of ten (10) species of small mammals belonging to ten (10) families and seven (7) orders were recorded in the study. African Hedgehog Atelerix albiventris and White toothed shrew Crocidura flavescens  were the most occurring species across The findings of the study shows that the overall diversity index was (1.692), where Four-toed hedgehog Atelerix albiventris had the highest species diversity90.363) and estimated population density of (64.44) followed by Giant pouched rat Cricetomys gambianus with (0.277; 0.018) respectively, Cape hare Lepus capensis and Mongoose Herpestes ichneumon who’s having the lowest diversity of (0.017) with (0. 564) density each in the study area. The month of February has higher number of captured percentage with (24%) in dry season, followed by October with (19%) in the wet season, the lowest capture percentage occurred with August (14%) in the wet season. University Residential Area had more number of individual species having (37.82 %), while Farm land had the least captured percentage of(16.85%).The trap success in both wet season and dry season’s period were (33.04%; 21.67%)respectively. Habitat alteration and destruction due to ongoing constructions project, mainly for university deployment might have accounted for small mammal species low diversity and density in Federal University Gashua.
PERAN MEDIASI KEPUASAN PELANGGAN DALAM MEMPENGARUHI EXPERIENTAL MARKETING TERHADAP LOYALITAS PELANGGAN DI “SENDIRI COFFEE BAR” DENPASAR
Authors: I Wayan Sunia  , Dony Wira Sanjaya  , I Made Suidarma  , I Dewa Nyoman Marsudiana
Published: April 2023

AbstractCurrent study aims to explain the role of experiential marketing and customer satisfaction in increasing customer loyalty to companies, especially coffee shops. This study was carried out through a quantitative approach by taking the research location at Sendiri Coffee Bar Denpasar. The target population includes all consumers who have visited the cafe in the last 6 months. Through accidental sampling method, 33 consumers participated in the study. Empirical data was collected through an online questionnaire and were then analyzed through the Structural Equation Model approach with SmartPLS 3.2.9. The findings confirm that experiential marketing and customer satisfaction play a very crucial role in influencing the level of consumer loyalty in cafes. Furthermore, a good experience felt by consumers will be able to increase loyalty through a high level of satisfaction with the products and services provided. This study is able to contribute positively to the literature and to the development of cafe business. The implication that can be given is the importance of always improving the quality of cafes from product and service aspects in order to create memorable experiences in the minds of consumers and high satisfaction so that they can encourage them to become loyal customers.

Keywords: Customer Loyalty; Customer Satisfaction; Experiental Marketing

AbstrakPenelitian saat ini bertujuan untuk menjelaskan peran experiential marketing dan kepuasan pelanggan dalam meningkatkan loyalitas pelanggan pada perusahaan khususnya coffee shop. Penelitian ini dilakukan melalui pendekatan kuantitatif dengan mengambil lokasi penelitian di Sendiri Coffee Bar Denpasar. Target populasi mencakup semua konsumen yang pernah mengunjungi kafe tersebut dalam 6 bulan terakhir. Melalui metode accidental sampling, 33 konsumen berpartisipasi dalam penelitian ini. Data empiris dikumpulkan melalui kuesioner online kemudian dianalisis melalui pendekatan Structural Equation Model dengan SmartPLS 3.2.9. Temuan mengkonfirmasi bahwa pemasaran pengalaman dan kepuasan pelanggan memainkan peran yang sangat penting dalam mempengaruhi tingkat loyalitas konsumen di kafe. Selanjutnya, pengalaman yang baik yang dirasakan oleh konsumen akan dapat meningkatkan loyalitas melalui tingkat kepuasan yang tinggi terhadap produk dan layanan yang diberikan. Studi ini mampu memberikan kontribusi positif bagi literatur dan pengembangan bisnis kafe. Implikasi yang dapat diberikan adalah pentingnya selalu meningkatkan kualitas kafe dari aspek produk dan pelayanan agar tercipta pengalaman yang berkesan di benak konsumen dan kepuasan yang tinggi sehingga dapat mendorong mereka untuk menjadi pelanggan setia.

Kata kunci: Loyalitas Pelanggan; Kepuasan pelanggan; Pemasaran Pengalaman
PENGARUH KEPERCAYAAN, KOMITMEN, DAN KUALITAS PELAYANAN TERHADAP LOYALITAS KONSUMEN DI SHOTGUN SOCIAL BALI
Authors: Mutria Farhaeni  , Elsita Lisnawati Guntar  , Viviayu Sela Darmiyanti
Published: April 2023

ABSTRACTThe purpose of this study was to determine the effect of service quality, trust, and price on customer satisfaction at Shotgun Social Bali. The sample of this study were 100 respondents. The sampling technique used in this study was Purposive Sampling. The data collection procedures in this study are documentation obtained from Shotgun Social Bali management, questionnaires measured on a Likert scale, and interviews with employees at Shotgun Social Bali. The data analysis technique uses multiple linear regression analysis. t-count of Trust variables is 2.255, t count of Commitment variables is 9.239, t-count of service quality is 2.590. The results of this study state that Trust, Commitment, and Service Quality partially have a positive and significant effect on Consumer Loyalty at Shotgun Social Bali. The f-count result in this study is 602.998 with a sig of 0.000. The results of the study state that Trust, Commitment, and Service Quality simultaneously have a positive and significant effect on Consumer Loyalty at Shotgun Social Bali.

Keywords: Trust, Commitment, Service Quality, Loyalty, Shotgun Social Bali

ABSTRAKTujuan penelitian ini adalah untuk mengetahui Pengaruh Kualitas Pelayanan, Kepercayaan, dan Harga terhadap Kepuasan Pelanggan di Shotgun Social Bali. Sampel dari penelitian ini adalah sebanyak 100 responden. Teknik pengambilan sampel yang digunakan dalam penelitian ini adalah Purpossive Sampling. Prosedur pengumpulan data dalam penelitian ini yaitu dokumentasi yang didapat dari manajemen Shotgun Social Bali, kuesioner diukur dengan skala likert, dan wawancara kepada karyawan di Shotgun Social Bali. Teknik analisis data menggunakan analisis regresi linier berganda. t-hitung variabel Kepercayaan (X1) sebesar 2,255, t-hitung variabel Komitmen (X2) sebesar 9,239, t-hitung kualitas pelayanan (X3) sebesar 2,590. Hasil penelitian ini menyatakan bahwa Kepercayaan, Komitmen, dan Kualitas Pelayanan secara parsial berpengaruh positif dan signifikan terhadap Loyalitas Konsumen (Y) di Shotgun Social Bali. Hasil f-hitung dalam penelitian ini adalah 602,998 dengan sig 0,000. Hasil penelitian menyatakan bahwa Kepercayaan, Komitmen, dan Kualitas Pelayanan secara simultan berpengaruh positif dan signifikan terhadap Loyalitas Konsumen di Shotgun Social Bali.

Kata kunci: Kepercayaan, Komitmen, Kualitas Pelayanan, Loyalitas, Shotgun Social Bali
MENAKAR FAKTOR-FAKTOR YANG MEMPENGARUHI HARGA SAHAM PERUSAHAAN OTOMOTIF DI BURSA EFEK INDONESIA
Authors: Ida Ayu Ratih Manuari , Ni Luh Nyoman Sherina Devi
Published: April 2023

ABSTRACTThe achievement of a company's success can be seen from their financial performance because from this financial performance we can find out how the company's targets have been achieved and how the financial activities have been carried out. One of the targets that companies want to achieve is how high the stock price they want on the stock market. Share prices are influenced by the demand and supply of shares in the capital market. The purpose of this study was to examine and analyze the effect of corporate governance as a proxy for the board of directors, board of commissioners, managerial ownership and institutional ownership on financial performance and stock prices in automotive companies listed on the Indonesia Stock Exchange. The population in this study were all automotive companies registered on the IDX in 2018-2020, with a purposive sampling technique, so that the number of samples was 5 companies. The data analysis technique used is the PLS (Partial Least Square) method. The results of this study are the board of directors, board of commissioners, managerial ownership and institutional ownership have a positive effect on financial performance and stock prices. Financial performance has a positive effect on stock prices.

Keywords : Corporate Governance, Financial Performance, Stock Price

ABSTRAKPencapaian keberhasilan suatu perusahaan dapat dilihat dari kinerja keuangan mereka karena dari kinerja keuangan tersebut kita dapat mengetahui seberapa target perusahaan tercapai dan bagaimana aktivitas keuangan yang telah dilaksanakan. Salah satu target yang ingin dicapai perusahaan adalah seberapa tinggi harga saham yang mereka inginkan di pasar bursa. Harga saham dipengaruhi oleh permintaan dan penawaran saham di pasar modal. Tujuan dari penelitian ini adalah untuk menguji dan menganalisis pengaruh tata kelola perusahaan yang diproksikan dengan dewan direksi, dewan komisaris, kepemilikan manajerial dan kepemilikan institusional terhadap kinerja keuangan dan harga saham pada perusahaan otomotif yang terdaftar di Bursa Efek Indonesia. Populasi dalam penelitian ini adalah seluruh perusahaan otomotif yang terdaftar di BEI tahun 2018-2020, dengan Teknik pengambilan sampel adalah Teknik purposive sampling, sehingga diperoleh jumlah sampelnya adalah 5 perusahaan. Teknik analisis data yang digunakan adalah Metode PLS (Partial Least Square). Hasil penelitian ini adalah dewan direksi, dewan komisaris, kepemilikan manajerial dan kepemilikan institusional berpengaruh positif terhadap kinerja keuangan dan harga saham. Kinerja keuangan berpengaruh positif terhadap harga saham.

Kata Kunci : Tata Kelola Perusahaan, Kinerja Keuangan, Harga Saham
Comportamiento productivo de cuy (Cavia porcellus) cruzados con polidactilia en la etapa de recría en Yurimaguas (Loreto, Perú)
Authors: Ruiz-Calsin Gisella , Mathios-Díaz Leo Junior , Mathios-Flores Marco Antonio
Published: April 2023

El objetivo del estudio fue determinar el efecto de la polidactilia en el comportamiento productivo del cuy (Cavia porcellus) cruzados en la etapa de recría. Un total de 27 cuyes machos destetados con 20 días de nacidos y un peso promedio de 450 g, fueron distribuidos al azar en tres unidades experimentales por tratamiento y repetición: T1 = (testigo): cuatro dedos anteriores y tres posteriores, T2 = (cuyes con polidactilia): seis dedos anteriores y seis dedos posteriores y T3 = (cuyes con polidactilia): cuatro dedos anteriores y cuatro dedos posteriores y alimentados a base de forraje (Pennisetum typhoides x P. purpureum), balanceado comercial (engorde) y agua. Se evaluó la ganancia de peso, conversión alimenticia y el rendimiento de carcasa. Los datos fueron analizados a través de ANOVA, aplicándose la prueba de Duncan para la comparación post hoc (P<0,05). Se encontró diferencias significativas para la ganancia de peso, sin embargo, para conversión alimenticia y rendimiento de carcaza no hubo diferencias significativas entre los tratamientos.
الأمن القانوني من خلال جودة وتحسين القانون
Authors: راضي مازن
Published: April 2023

مصادر الأمن القانوني عديدة ويمكن ارجاع أهم مظاهرها إلى: تحقيق عناصر جودة وتحسين القانون، فمن المهم أن تتمتع التشريعات بدرجة عالية من الجودة والإتقان لضمان تحقيق أهداف التشريع بطريقة فاعلة، ومقبولة من المخاطبين بها كما أن الإصلاح التشريعي يحظى هو الآخر بأهمية كبيرة للقضاء على مظاهر الإغفال والانحراف التشريعي وجعل التشريعات واقعية وناجعة إضافة لسهولة الوصول إليها وسهولة تطبيقها من قبل القضاء وهذا من شأنه أن يُشيع الأمن والاستقرار القانوني.

فلابدّ من إخضاع العملية التشريعية لقواعد ومعايير وآليات واضحة ودقيقة وشفافة لضبطها على المستوى الموضوعي وعلى المستوى الفني، فكما معروف أن العملية التشريعية عملية مركبة ويشترك فيها أطراف عديدة إلى جانب المؤسسة التشريعية، وللبحث في موضوع الأمن القانوني من خلال جودة وتحسين القانون، ارتئينا تقسيمه على مبحثين نخصص الأول للبحث في حسن صياغة القاعدة التشريعية، أما المبحث الثاني فنبحث فيه تحقيق الاصلاح التشريعي.
Pengaruh Promosi Terhadap Peningkatan Penjualan Pada Triple 8 Riverside Resort Kabupaten Soppeng
Authors: Surianti Surianti , Abbas Mukhlis , Nurhidayah Nurhidayah
Published: April 2023

Permasalahan dalam hal ini Triple 8 The Riverside Resort belum maksimal dalam menjalankan promosi. Pada situs resmi Triple 8 The Riverside Resort, beberapa pengunjung yang memberikan ulasan bahwa kurangnya discount yang diberikan meskipun sudah melakukan pembelanjaan dengan jumlah yang banyak dan hadiah lainnya yang dapat menunjang peningkatan penjualan. Tujuan penelitian ini adalah Untuk mengetahui pengaruh promosi terhadap peningkatan penjualan pada Triple 8 The Riverside Resort Kabupaten Soppeng. Penelitian ini dilakukan pada Triple 8 The Riverside Resort yang terletak diJalan Lompo Raya 888 ,Kelurahan Lemba, Kecamatan Lalabata, Kabupaten Soppeng, Tehnik pengambilan sampel yang digunakan adalah Random Sampling. Teknik Random Sampling merupakan jenis pengambilan sampel di mana setiap orang di seluruh populasi memiliki kesempatan yang sama untuk dipilih. Dalam penelitian ini peneliti menentukan sampelnya dari konsumen yang dating padaTriple 8 The Riverside Resort pada saat peneliti melakukan penelitian., sehingga sampel dalam penelitian ini adalah sebanyak 100 responden., Untuk mengetahui Pengaruh Promosi terhadap Peningkatan penjualan pada Triple 8 The Riverside Resort maka digunakan Analisis Regresi Linear Sederhana. Berdasarkan hasil analisis penelitian mengenai pengaruh Promosi   The Riverside Resort Kabupaten Soppeng, maka dapat disimpulkan bahwa Promosi berpengaruh   The Riverside Resort Kabupaten Soppeng. Berdasarkan hasil kesimpulan yang telah dikemukakan di atas, maka dapat Disarankan  kepada  pihak  Triple 8 The Riverside Resort Kabupaten Soppeng agar meningkatkan promosi dengan memperhatikan Indikator Pesan Promosi, Media Promosi, Waktu Promosi dan Frekuensi Promosi, agar Penjualan pada Triple 8 The Riverside Resort Kabupaten Soppeng terus meningkat
Food and Beverage Promotion Strategy to Increase Sales, at PT. Reska Multi Business
Authors: Suparna Suparna , Fadhilah Muinah
Published: April 2023

Technological developments are very fast like today. Making companies have to be able to face competition and be able to win the market. There is a lot of competition for food and beverage service and sales made.  PT. Reska Multi Usaha is a challenge. For this reason, PT Reska Multi Usaha always innovates so that it can. Serve consumers, as well as keep abreast of technological developments and services that move dynamically. For example, providing discounts, making Indonesian food, holding events, and making sales applications to offer products to the public. The purpose of this research is to determine the level of achievement of service, sales, and promotion through sales and promotion mix in service improvement and sales achievement by using the lokomart.id application and promotions through advertising, price discounts, individual sales, direct sales, and sales with application theory. This research method is a quantitative method with a descriptive approach, through in-depth interviews and documents relevant to the research. the subjects of this study were area 6 Yogyakarta managers, junior sales managers, senior sales supervisors, and sales staff.  PT. Reska multi Usaha formed a forum for sales communication and promotion of food and beverage products through 1. Advertising, with railroad television, raw food, kai access, and the official lokomard.id.website. 2. Sales promotion using discounted prices, vouchers, to users, or purchases through kai access and lokomard.id.3.sales promotion by holding events at the station, educational tours, and public relations. 4. face-to-face individual sales to get feedback, 5. Marketing and direct sales and. 6. Digital marketing to find out direct responses from consumers.
The Influence of Leadership, Organizational Citizenship Behavior (OCB), and Organizational Culture On Employee Performance
Authors: Wijayanti Ani , Muhdaliha Eryco , Dwi Lestari Setyani
Published: April 2023

This study examines the impact of leadership, Organizational Citizenship Behavior (OCB), and organizational lifestyle on overall employee performance. The study was conducted in Bitung Metropolis at KPP Pratama Bitung, and a total of 103 employees of KPP Pratama Bitung were interviewed. Research Design, Data, and Methodology: The type of research conducted is explanatory research with a general sampling approach. Fact-gathering was done through a questionnaire using the Likert scale model processed with the Microsoft Excel 2019 software program and the SPSS 25 model. The validity test and the reliability test of the research tool used the SPSS correlation coefficient significance test and the significance test. Cronbach Alpha (A) SPSS Statistical Examination. Information analysis strategy with multiple regression evaluation. Findings: This study provides findings demonstrating that leadership, organizational citizenship behavior (OCB), and organizational lifestyle simultaneously positively impact employee performance, while leadership, organizational citizenship behavior (OCB), and organizational lifestyle partially positively impact worker performance. Conclusion: Implementation of the strategy or steps in this study is intended to guide and motivate an organization to successfully apply leadership, organizational civic behavior (OCB), and organizational culture to improve employee performance.
Analysis of Articulation of Local Government Financial Statements
Authors: Hamid Muliyadi
Published: April 2023

The Financial and Development Supervisory Agency (BPKP) stated that the non-obtainment of WTP's opinion was due to several factors. The factor is the presentation of financial statements that do not follow government accounting standards (SAP). The study aims to see the suitability of the Palopo City LKPD, which has the opinion of WTP (2021-2020) with government regulation number 71 of 2010 concerning government accounting standards (SAP). To answer these problems, researchers use descriptive qualitative research methods using documentation techniques to collect data. In this study, there were 27 OPDs and one LKPD, which were the object of analysis with accrual-based articulation analysis. The analysis was conducted by comparing the facts in the front sheet of OPD and LKPD financial statements with criteria based on accounting equations and government accounting standards (SAP). The results of this study showed that for the financial statements of 27 OPDs, 4 OPDs achieved 100% articulation, and 23 OPDs achieved 96.67% articulation, with an average cumulative articulation value of all OPDs of 97.16%. In contrast, for the analysis of LKPD articulation, the results of 100% articulation achievements were found to be two types of articulation with 23 events in the OPD financial statements.
How Digitalization, Work-Family Balance, and Work Efficiency Can Influence Employees' Preferences for Teleworking in the Future
Authors: Dimian Gina Cristina , Gheorghe Mirela , Boldeanu Dana Maria , Maftei Mihaela
Published: April 2023

During Covid-19 pandemic many employees found themselves in the new position of teleworkers. Proof of the last years, teleworking remains an alternative to the classic system, reason why in this paper we aim to examine, based on an online questionnaire, the perceptions of Romanian employees about the very complex aspects that teleworking involves: the new ICT tools and technologies adoption, impact on work efficiency, work-family balance, and employees physical and mental health. The paper is based on an empirical analysis of data, and the authors have used as research methods: testing the independence of groups (Mann-Whitney U and Kruskal Wallis) and the correlation between variables, categorical principal components analysis (CATPCA) and logistic regression model. Our findings show that several factors, such as flexible working hours, family time, and autonomy have a positive influence on the decision to telework, while IT security risks, interruptions and virtual meetings were not perceived by respondents as negatively influencing their decision to telework. However, the consequences for mental health, such as mental stress, lack of socialisation and the difficulty of separating working time from family time, lead respondents to prefer another working system. The implications of the research are relevant for policy makers, employers, and employees as they reveal which categories of employees are more likely to telework and why.
State Aid Impact on Central and Eastern Europe Economies
Authors: Pekarskiene Irena , Bruneckiene Jurgita , Sarlauskaite Sima
Published: April 2023

State aid is a fairly common phenomenon in the European Union, and, in the context of the COVID-19 pandemic, the number of companies receiving state aid has even increased. However, scientific research confirms that, depending on the macroeconomic, political and social situation as well as on industry specifics, state aid can have a dual effect - positive or negative. To date, there is no clear answer to the question of what impact and under which conditions state aid has on national economies in the long run. This article contributes to filling a gap in the literature because to date researchers have focused on the cases of large, heavily populated European Union countries, but the research into the impact of state aid on the Central and Eastern EU economies, where the level of state aid as percentage of GDP is higher than the EU average, is still scarce. In addition, the mixed results obtained in previous studies caused confusion over the effects of state aid and its relevance for economic development. In our research, we applied correlation analysis, Granger causality test, ARDL, PTR models and evaluation of multipliers for the analysis of the panel data set representing 11 Central and Eastern EU countries over a 20-year period (from 2000 to 2019). We found that state aid does not promote economic development in most Сentral and Eastern EU countries under certain conditions in the long term. This paper contributes to a deeper understanding of the state aid-economic development relationship at the national level in the Central and Eastern Europe and has implications for policy makers.
Die tugendethische Kultivierung des Selbst
Authors: Işık Tuba
Published: April 2023

This book places theological, educational, philosophical and mystical insights from an Islamic perspective at the service of the cultivation of the self. Against this background, it analyses the question of to what extent the work on the self in terms of virtue ethics can be considered a task of school education. It thus focuses on virtue as a dimension of education, including Islamic religious education.

At the beginning of the book, theoretical considerations about the moral constitution of human beings are central. These are then concretised into the practical categories or key virtues of justice, sincerity, compassion and friendship.
Sustainability of Non-communicable Disease Prevention and Control Programs in Iran: A Mixed-methods Study from Managers' Perspective
Authors: Partovi Yegane , Farahbakhsh Mostafa , Tabrizi Jafar Sadegh , Gholipour Kamal , Kousha Ahmad , Sharbafi Jabreil , Jafari Koshki Tohid , Wilson Andrew
Published: April 2023

Background: Non-communicable diseases (NCDs) require multifaceted responses from healthcare systems that must complement sustainable healthcare programs. Objectives: This study aims to investigate the current state of sustainability of Non-communicable Disease Prevention and Control Programs (NCP-PCP) and to identify related challenges in various intra- and inter-organizational domains. Methods: This mixed-methods study used a researcher-made sustainability assessment tool and qualitative interviews of 46 managers responsible for implementing NCP-PCP in Iran. Graneheim and Lundman's approach, as well as descriptive statistics, were utilized to analyze the data. The sustainability questionnaire comprised nine domains: environmental support, funding stability, partnerships, organizational capacity, program evaluation, program adaptation, communications, strategic planning, and law and governance. Results: The overall mean score for sustainability was 3.54 ± 0.86, with funding stability (2.79 ± 1.03) and program adaptation (4.24 ± 1.12) receiving the lowest and highest mean scores, respectively. Qualitative data revealed several challenges, including financial instability, lack of budget allocation for such programs, absence of specific mechanisms for program evaluation, inadequate resources, deficiencies in intersectoral cooperation, and failure to utilize hidden community capacities. Conclusions: It is crucial to maintain and strengthen the current state of program adaptation and program evaluation to ensure the sustainability of NCD-PCP. On the other hand, funding instability is a significant obstacle in prevention and control programs that can bring the entire program to a halt, regardless of its sustainability in other domains.
Determination of information, attitudes and behaviors about immune plasma donation of individuals diagnosed with COVID-19
Authors: KORKMAZ Serap , DOĞAN Reyhan
Published: April 2023

Background: Immune plasma therapy is an effective solution in pandemic conditions until an effective and proven treatment is found. In this process, a large number of volunteers who accept to be immune plasma donors are needed. Therefore, being informed about the hesitation of the donors regarding plasma donation will be a guide for voluntary donor recruitment. The aim of this research was to evaluate the knowledge, attitudes, and behaviors of individuals diagnosed with Covid 19 about immune plasma donation.
Materials and Methods: This is cross-sectional research. Between January and May 2021, individuals between the ages of 18 and 60 who received treatment in a training and research hospital's Covid 19 clinics were included.
Results: The mean age of the participants was 43.79±11.47 years, 45.5% (n=100) female and 55% (n=120) male. 46.36% of the participants are considering becoming immune plasma donors. One of the factors that prevent being an immune plasma donor is the thought that "it may negatively affect my health. "Half of the participants do not know whether sufficient immune plasma donation is made in the country.
Conclusions: The health care system needs to be strengthened about immune plasma donation during the pandemic process. In addition, efforts should be made to eliminate the hesitations of the public about donations.
Kronik Böbrek Yetmezliği nedeni ile hemodiyaliz tedavisi alan hastaların D vitamini düzeyinin ayak hareketleri üzerine etkisinin karşılaştırılması
Authors: OZBAY Zeynep , ALTIPARMAK Anıl , İNCEOĞLU Feyza , ARPACI Muhammed Furkan , PEKMEZ Hıdır , PEMBEGÜL İrem
Published: April 2023

Amaç: Kronik böbrek yetmezliği (KBY), böbrek fonksiyonlarının geri dönüşsüz olarak bozulması olarak tanımlanmaktadır. Bu çalışmada KBY nedeni ile hemodiyaliz (HD) tedavisi alan kadın ve erkek hastalarda D Vitamini düzeyinin ayak hareketleri üzerindeki etkisi araştırıldı.
Materyal ve Metot: Çalışmaya bilgilendirilmiş gönüllü onam formunu imzalayan, 40-90 yaş arası, haftada 3 kez düzenli olarak HD tedavisi alan,45 erkek ve 45 kadın, toplam 90 HD hastası dahil edildi. Biyokimyasal olarak D Vitamini düzeyi, element düzeyleri ve Parathormon (PTH) seviyeleri hastaların dosyaları incelenerek kaydedildi. Manuel gonyometre kullanılarak ayak bileği plantar fleksiyon, inversiyon ve eversiyon eklem hareket açıklığı ölçüldü.
Bulgular: Yaş ortalaması kadınlarda 61,69 ± 15,07 yıl iken erkeklerde 61,49 ± 15,12 yıldır. Serum D vitamini düzeyi açısından cinsiyetler arasındaki fark istatiksel açıdan anlamlı bulunmadı (p>0,05). Beden kitle indeksi (BKİ) değişkenine göre kadınlar ve erkekler arasında istatistiksel olarak anlamlı farklılık bulundu (p<0,05).
Sonuç: Bu çalışmada KBY nedeni ile HD tedavisi alan hastalarda D vitamini düzeyinin ayak hareketleri üzerine etkisinin olmadığı belirlendi.
Spatiotemporal analysis of land surface temperature owing to NDVI: A case study of Vadodara District, Gujarat
Authors: Bhowmik Sharmistha , Bhatt Bindu
Published: April 2023

The expeditious extension of LULC in the name of development is the root cause of global warming. Replacement of natural resources due to the expansion of manmade erections is accountable for the increase in LST of Earth’s topography. The impression of change in LULC is reflected in LST. To seize the rising temperature, the lamentation of a new plan of action for urbanization is of utmost requisite. This paper examines the change in LULC and its spatiotemporal impact on LST in Vadodara, which is situated on the bank of river Vishmamitri river. Vadodara an arid region has three main seasons and these are summer, monsoon, and winter. The climate is characterized by hot summer and dryness in the non-rainy seasons. May is the hottest month while January is the coldest month. The annual rainfall of the district is 475.2 mm. Hence, to analyze we used multi-spectral and multi thermal Landsat TM and ETM+ satellite images to monitor the evaluation of LULC and its impact on LST from 2001(pre-monsoon) to 2021(pre- monsoon). The study explores to what extent observed LST can be examined by vegetation cover measured through NDVI from2001 to 2021. To achieve this an analysis of co-relation is performed between LULC and LST and by using spectral indices comprising NDVI with the help of software like ArcGIS 10.2 and Erdas Imagine 2014. It had been observed that a considerable increase in LST in Vadodara was 58.338°C (Max) and 21.9014°C (Min) in 2001(pre-monsoon) to 60.844 °C (Max) and 24.6784 °C (Min) in 2021(pre-monsoon) which is just about 2°C increase in Max and 3 degrees increase in Min for LST in past 20 years. It was also observed that there is an inverse relationship between LST and NDVI. The value of NDVI is observed that change from 0.380711(H) and -0.59322(L) in 2001 to 0.551(H) to -0.351193(L)in 2021. Moreover, SMI places a vital role to investigate and verify the relation between LST and NDVI. Henceforth, to verify SMI was also calculated and it was noticed that places with high LST value and low NDVI value contained less soil moisture and places with less LST value and high NDVI values contained more soil moisture. Thus, it can be concluded that, if urban planners and decision-makers implement suitable land-use strategies then Earth’s topography can be protected from adverse effects of urban heat by planting adequate and appropriate trees in bare soil and beside the impervious areas, thus the expansion of UHI can also be controlled. Moreover, with the help of SMI values, it will also be beneficial for the agricultural sector.
การพัฒนาดัชนีความเหมาะสมทางกายภาพของการใช้งานสกู๊ตเตอร์ไฟฟ้าบนถนนในเมือง
Authors:   , กษิรวัฒน์ ปรัตถกร
Published: April 2023

งานวิจัยนี้ศึกษาความสัมพันธ์ปัจจัยทางกายภาพที่ส่งผลต่อการใช้งานสกู๊ตเตอร์ไฟฟ้าบนถนนและทางเท้าในพื้นที่กรุงเทพมหานคร เนื่องจากปัจจุบันแนวโน้มผู้ใช้งานสกู๊ตเตอร์ไฟฟ้ามีจำนวนเพิ่มสูงขึ้น ทำให้อัตราการเกิดอุบัติเหตุมีแนวโน้มที่จะสูงขึ้นด้วย และประเทศไทยยังไม่มีกฎหมายที่ชัดเจนเกี่ยวกับพาหนะชนิดนี้ ในการศึกษานี้ได้ใช้ข้อมูลจากการทดสอบของอาสาสมัครผู้ใช้สกู๊ตเตอร์ไฟฟ้าจำนวน 22 คน ในเส้นทางที่กำหนดไว้ 46 เส้นทาง ซึ่งมีลักษณะเส้นทางและองค์ประกอบที่แตกต่างกันไป เพื่อประเมินคะแนนความรับรู้ความพึงพอใจในด้านความสะดวกสบาย ความเร็ว ความปลอดภัย และระดับโดยรวมของการใช้งานสกู๊ตเตอร์ไฟฟ้า โดยอาศัยการวิเคราะห์ข้อมูลแบบแผงด้วยแบบจำลองการถดถอยโลจิสติกแบบเรียงลำดับ ผลการศึกษาพบว่า ในส่วนของถนน ปัจจัยทางกายภาพที่ส่งผลต่อความสะดวกสบาย คือ พื้นผิวไม่มีความเสียหาย ไม่มีหรือมีสิ่งกีดขวางบนพื้นผิวน้อยกว่า 3 เมตร มีช่องทางจักรยาน ทางตรง และความเร็วกระแสจราจร ขณะที่ปัจจัยที่ส่งผลต่อความเร็ว คือ พื้นผิวไม่มีความเสียหาย มีช่องทางจักรยาน และพื้นผิวลาดยาง ปัจจัยที่ส่งผลต่อด้านความปลอดภัย คือ มีช่องทางจักรยาน เส้นแบ่งช่องทางมีความชัดเจน ปริมาณกระแสจราจร และความต่อเนื่อง ปัจจัยที่ส่งผลต่อระดับโดยรวม คือ มีช่องทางจักรยาน และปริมาณกระแสจราจร ส่วนการใช้งานสกู๊ตเตอร์ไฟฟ้าบนทางเท้า ปัจจัยทางกายภาพที่ส่งผลต่อความสะดวกสบาย คือ พื้นผิวไม่มีความเสียหาย และพื้นผิวลาดยาง ส่วนปัจจัยความรู้สึกรับรู้อีก 3 ปัจจัย มีเพียงปัจจัยวัสดุพื้นผิวที่ส่งผล ทั้งนี้พบว่าปัจจัยด้านความปลอดภัยส่งผลต่อระดับโดยรวมของการใช้งานบนถนนมากที่สุด ส่วนทางเท้าเป็นปัจจัยด้านความสะดวกสบายที่ส่งผลต่อระดับโดยรวมมากที่สุด ผลที่ได้จากการวิเคราะห์นี้นำมาซึ่งแนวทางในการออกแบบปรับปรุงหรือคัดเลือกเส้นทางที่มีความเหมาะสมของการใช้งานสกู๊ตเตอร์ไฟฟ้า ซึ่งหน่วยงานที่เกี่ยวข้องสามารถใช้ในการจัดทำคู่มือและแผนที่แนะนำเส้นทางในพื้นที่ได้ต่อไป
การวิเคราะห์ตัวประกอบความเข้มของความเค้นสำหรับรอยร้าวที่ปีกในคานเหล็กหน้าตัดรูปตัวไอที่ซ่อมแซมด้วยแผ่นปะพอลิเมอร์เสริมเส้นใย
Authors:   , กันต์งาม กิตติชัย
Published: April 2023

งานวิจัยนี้นำเสนอการวิเคราะห์หาค่าตัวประกอบความเข้มของความเค้น (SIF) สำหรับคานเหล็กหน้าตัดรูปตัวไอที่มีรอยร้าวที่ปีกแบบสมมาตรภายใต้แรงดึงหรือแรงดัดทั้งที่ไม่มีและมีการซ่อมแซมด้วยแผ่นปะ ด้วยวิธีไฟไนต์เอลิเมนต์ จากการศึกษาความสัมพันธ์ระหว่างค่า SIF และความยาวรอยร้าวที่ปีกหรือเอว พบว่าเมื่อความยาวรอยร้าวที่ปีกหรือเอวมีค่ามากขึ้นจะส่งผลกระทบให้ค่า SIF (ที่ปีก) กรณีรับแรงดึง สูงกว่ากรณีรับแรงดัด ในขณะที่ค่า SIF (ที่เอว) กรณีรับแรงดัดมีค่าสูงกว่ากรณีรับแรงดึง ทั้งที่ไม่มีและมีการซ่อมแซมด้วยแผ่นปะ และการศึกษาผลกระทบของมิติคานเหล็ก พบว่าอัตราส่วนระหว่างพื้นที่หน้าตัดของปีกทั้งหมดต่อพื้นที่หน้าตัดของแผ่นเอวส่งผลกระทบต่อค่า SIF กรณีที่ไม่มีการซ่อมแซมด้วยแผ่นปะ มากกว่าค่า SIF กรณีที่มีการซ่อมแซมด้วยแผ่นปะ และในทางกลับกันอัตราส่วนระหว่างความลึกของคานต่อความกว้างของปีก ส่งผลกระทบต่อค่า SIF กรณีที่มีการซ่อมแซมด้วยแผ่นปะ มากกว่าค่า SIF กรณีที่ไม่มีการซ่อมแซมด้วยแผ่นปะ ทั้งที่ปีกและเอวภายใต้แรงดึงหรือแรงดัด ในขณะที่ความหนาและมอดุลัสของชั้นกาวส่งผลกระทบให้ค่า SIF ลดลงเพียงเล็กน้อย สุดท้ายงานวิจัยนี้นำเสนอสมการทำนายค่า SIF โดยสมการที่นำเสนอได้พัฒนาจากการวิเคราะห์ฐานข้อมูล SIF กว่า 43740 ข้อมูล ที่ได้จากการวิเคราะห์ไฟไนต์เอลิเมนต์ กว่า 21870 ครั้ง ด้วยโปรแกรมเชิงพันธุกรรม
ผลของซิลิกาจากเถ้าแกลบต่อสมบัติทางกลของมอร์ต้าเมื่อสัมผัสอุณหภูมิสูง
Authors:   , บุญทวี กันตพงศ์
Published: April 2023

งานวิจัยนี้เป็นการนำเถ้าแกลบ ซึ่งเป็นผลพลอยได้จากการนำแกลบข้าวเผาเป็นเชื้อเพลิงในโรงสีข้าว โดยนำมาประยุกต์ใช้ในการเป็นวัตถุดิบสำหรับทดแทนการใช้ปูนซีเมนต์ เพื่อผลิตเป็น มอร์ต้า สำหรับทดสอบความสามารถในการรับแรงอัดเมื่อได้ความร้อนที่อุณหภูมิสูง ซึ่งงานวิจัยนี้แบ่งออกเป็น สอง ส่วน ส่วนที่หนึ่ง เป็นการศึกษาคุณลักษณะและเตรียมเถ้าแกลบที่ได้จากโรงสีข้าวสำหรับในการนำไปผสมปูนซีเมนต์ โดยจะตรวจสอบสารปะกอบทางเคมีของเถ้าแกลบ ด้วย เครื่องวิเคาะห์การเลี้ยวเบนของรังสีเอกซ์ (XRF)  ผลที่ได้เถ้าแกลบมีปริมาณ ซิลิกาสูงถึง  93.5 เปอร์เซ็นต์ของน้ำหนัก ซึ่งจะเตรียมเถ้าแกลบผ่านตระแกรงร่อนทั้งหมด 3 เบอร์  โดยจะผสมกับปูนซีเมนต์ที่ปริมาณ 5% 10% และ 15% ของน้ำหนักปูนซีเมนต์   ส่วนที่สอง เป็นการศึกษาสมบัติทางกลและคุณลักษณะของปูนซีเมนต์ผสมเถ้าแกลบก่อนและหลังผ่านอุณหภูมิสูง ที่อายุบ่ม 28 วัน  ด้วย กล้องจุลทรรศน์อิเล็กตรอนแบบส่องกวาด (SEM) และเครื่องวิเคาะห์การเลี้ยวเบนของรังสีเอกซ์ (XRD)  โดยจะให้ความร้อนชิ้นงาน ที่ 400๐C และ 800๐C เป็นเวลา 1 ชั่วโมง และ ตรวจสอบกำลังอัด   กับคุณลักษณะของมอร์ต้า ผลที่ได้มอร์ต้าผสมเถ้าแกลบกำลังอัดมีค่ามากกว่ามอร์ต้าแบบไม่ผสมเถ้าแกลบ ที่อุณหภูมิ 400๐C แต่ที่อุณหภูมิ 800๐C จะมีกำลังอัดใกล้เคียงกัน แต่กำลังอัดโดยรวมที่สูญเสียไปจากการได้รับความร้อน มอร์ต้าที่ผสมเถ้าแกลบมีการสูญเสียกำลังอัดน้อยกว่ามอร์ต้าแบบไม่ผสมเถ้าแกลบ และ จากผลการทดสอบกำลังอัดของมอร์ต้าผสมเถ้าแกลบที่อายุบ่ม 200 วัน พบว่ามีกำลังอัดเพิ่มขึ้นจากการบ่ม 28 วัน ส่วนแนวโน้มของความสามารถในการทนความร้อนเป็นลักษณะเดียวกันกับมอร์ต้าที่บ่ม 28 วัน
การประยุกต์ใช้แรงไดอิเล็กโตรโฟเรติกในระบบของไหลจุลภาคกับการจัดการเซลล์เลือด
Authors:   , ปานกลาง นิติพงศ์
Published: April 2023

การคัดแยกเซลล์หรืออนุภาคโดยใช้แรงได้อิเล็กโตรโฟเรติกได้รับความนิยม เนื่องจากไม่จำเป็นต้องดัดแปลงเซลล์หรืออนุภาคเป้าหมาย. วิทยานิพนธ์นี้ ศึกษาการคัดแยกเซลล์และอนุภาคโดยใช้แรงไดอิเล็กโตรโฟเรติกร่วมกับระบบของไหลจุลภาค. กระบวนการคัดแยกใช้อุปกรณ์ของไหลจุลภาคที่มีโครงสร้างไม่ซับซ้อน ซึ่งประกอบด้วยช่องทางไหลจุลภาคและอิเล็กโตรดแบบซี่หวี. การคัดแยกใช้แรงไดอิเล็กโตรโฟเรติกที่ถูกควบคุมด้วยค่าวัฏจักรหน้าที่ DT ของแรงดันอิเล็กโตรด. การทดลองคัดแยกอนุภาคพอลิสไตรีนจากเซลล์เม็ดเลือดแดงแสดงว่า การใช้ค่าวัฏจักรหน้าที่ทำให้เราสามารถควบคุมการกระจายตัวและการเบี่ยงเบนของเซลล์ได้. นอกจากนั้น เรายังสามารถป้องกันการสะสมของเซลล์บริเวณอิเล็กโตรดและป้องกันการอุดตันของช่องทางไหลจุลภาค. การคัดแยกอนุภาคพอลิสไตรีนจากเซลล์เลือดมีประสิทธิภาพมากกว่า 80% ที่อัตราส่วนจำนวนอนุภาคต่อจำนวนเซลล์เท่ากับ 1:2,000 และเซลล์เลือดมีความหนาแน่น 2x106 cells/µl. การเพิ่มปริมาณของอนุภาคพอลิสไตรีนที่ช่องทางออกมีค่าสูงสุด 238 เท่า เมื่อใช้ DT เท่ากับ 0.75. อุปกรณ์ของไหลจุลภาคยังถูกใช้คัดแยกเซลล์ติดเชื้อมาลาเรีย Plasmodium Falciparum จากเซลล์เลือดปกติกับตัวอย่างที่มีความหนาแน่นเซลล์เลือดสูง 1x106 cells/µl. การทดลองแสดงว่า การเพิ่มปริมาณของเซลล์เลือดติดเชื้อมีค่าสูงสุด 4,739 เท่า เมื่อใช้แรงดัน 7 Vp, ความถี่ 500 kHz, DT เท่ากับ 0.85 และอัตราส่วนจำนวนของเซลล์ติดเชื้อต่อเซลล์ปกติเท่ากับ 1:1x106.