bluuebunny/crossref_metadata_2025 huggingface dataset:
RANCANG BANGUN ALAT UKUR INTENSITAS RADIASI MATAHARI
Authors: Buana Chandra , Marhatang Marhatang , Parenrengi Andi Muh Farid , Irmawati Irmawati
Published: July 2024

Â Studi Potensi Energi Surya pada suatu daerah bertujuan untuk mengetahui apakah daerah tersebut layak didirikan suatu pembangkit listrik tenaga surya dan untuk mengetahui besarnya energy surya yang dapat dibangkitkanpada suatu daerah tersebut. Studi potensi energy surya dilakukan dengan cara melakukan pengukuran intensitas radiasi matahari secara langsung dengan menggunakan piranometer dalam kurun waktu tertentu. Semakin lama rentang waktu pengukuran intensityas radiasi matahari tersebut maka semakin akurat pula data yang akan diperoleh namun pengukuran dalam rentang waktu yang cukup lama akan menyulitkan peneliti terutama pada daerah terpencil. Hasil dari rancang bangun piranometer pada tugas akhir ini, terdiri dari photodiaoda bpw34 sebagai detector intensitas radiasi matahari, Teflon sebagai pelindung/peredam radiasi matahari pada detector,arduino uno sebagai mikrokontroler, Ethernet, SD card, router dan modem sebagai alat komunikasi antara mikrokontroler dengan google spreadsheet (server). Piranimeter hasil rancang bangun tugas akhir ini dapat mengukur intensitas radiasi matahari dengan kisaran 0 â€“ 1500 W/m2 dengan panjang gelombang yang dapat di deteksi sekitar 400 â€“ 1100 nm, dan piranometer tersebut memiliki tingkat akurasi sekitar 5%
ANALISIS PENGARUH JUMLAH SUDU, DIAMETER, DAN KEDALAMAN RENDAMAN TERHADAP KINERJA TURBIN RODA AIR
Authors: Jamal Jamal , Buana Chandra , Irwan Irwan , Achmad Muh Wahyu
Published: July 2024

Penelitian ini bertujuan untuk (1) Mengetahui pengaruh jumlah sudu terhadap kinerja turbin roda air (2) Mengetahui pengaruh diameter terhadap kinerja turbin roda air (3) Mengetahui pengaruh kedalaman rendaman terhadap kinerja turbin roda air. Aliran irigasi adalah aliran air yang mengalir, sehingga memiliki daya air, walaupun kecil. Kendala pada daerah aliran irigasi adalah tidak terdapat penerangan jalan akibatnya kurangnya daya listrik PLN atau memang daerah tersebut belum teraliri listrik PLN. Terdapat sistim pembangkit listrik skala kecil, yaitu menggunakan turbin roda air yang dapat digunakan pada aliran irigasi untuk membangkitkan listrik dan menyalakan lampu penerangan jalan pada daerah irigasi. Dalam pnenerpan fungsi irigasi dan aliran sungai berskala kecil, Metode yang digunakan adalah system aliran undershot, dimana setelah melakukan pengambilan data baik berbeban dan tanpa beban dilakukan analisa data untuk mengetahui kinerja rata â€“ rata sebuah kinerja turbin roda air. Hasil penelitian ini menghasilkan data pada turbin T8-120 dapat dilihat pada kedalman rendaman 2cm Pout max yang di hasilkan = 0.021 Watt, pada kedalman 4cm Pout max = 0.034 Watt, kedalman 5cm Pout max = 0.032 Watt. turbin T8-120 diperoleh efesiensi= 9.05% dan Fmax 1600 N, turbin T10-140 diperoleh efesiensi= 12,67 % dan Fmax 1600 N, turbin T12-160 diperoleh efesiensi = 13,44% dan Fmax 1800 N. Jadi kesimpulan dari penelitian ini semakin bayak jumlah sudu besaran dimater dan kedalman rendaman turbin roda air maka daya output yang dihasilkan juga akan semakin besar.
Uji Performa Termoelektrik pada Generator Air Cooler
Authors: Saini Makmur , Sonong Sonong , Afif Aslan , Suaib Suhartiwi
Published: July 2024

Generator Air Cooler (GAC) is an important part of the hydropower system which is used to cool the air in the generator room. GAC is a form of application of a heat exchanger (heat exchanger) with water as a coolant. There is a difference in air temperature before and after the GAC, so presumably it can be utilized by using a thermoelectric which is expected to work well as a coolant, in this case it takes into account its ability to absorb heat as a thermoelectric input and generate electrical energy as its output. From the test results, the addition of a thermoelectric was able to increase the effectiveness and NTU and also reduce LMTD. The effectiveness of the resulting GAC without thermoelectric addition yielded 89.90%, 91.85%, and 91.51%. Meanwhile, if the thermoelectric is added, it is 91.39%, 92.82%, and 92.58%. The electric power generated from three days of thermoelectric testing was 0.022W, 0.019W, and 0.021W, with an efficiency of 6.44%, 5.18%, and 4.07%.
Rancang Bangun Alat Pembuat Ikan Asap Menurut Standar Nasional Indonesia
Authors: Lobo Osmar Buntu , Hardinsi Festo Andre
Published: July 2024

Tujuan penelitian ini adalah membuat suatu alat pengasapan ikan yang mudah dioperasikan dan menghasilkan kualitas ikan asap yang memenuhi Standar Nasional Indonesia (SNI). Pengawetan ikan menggunakan metode pengasapan panas yaitu pengasapan yang dilakukan pada temperatur 70 â€“ 100 â°C. Produk dari alat tersebut berupa ikan asap yang diuji kadar airnya pada laboratorium Agroindustri. Pengujian ikan asap hanya menggunakan satu parameter saja yaitu uji kadar air karena saran dan prasarana yang masih terbatas. Metode yang dilakukan didalam pengujian kadar air yaitu termogravimetri. Kesimpulan dari penelitian yaitu tersedianya alat pengasapan ikan yang dapat menghasilkan produk yang memenuhi standar nasional indonesia
Analisis Prestasi Kerja Motor Bensin Toyota Type 7k Sebagai Pengganti Perkins Ford Type 2271 E
Authors: Rahman Abdul , Jamal Jamal
Published: July 2024

Penelitian ini bertujuan untuk mendapatkan karakteristik motor bensin Toyota type 7 K tersebut di atas dan kesesuainnya dengan peralatan ukur yang ada, serta diharapkan menjadi referensi dalam pengambilan data praktikum dan penelitian yang berkaitan dengan motor bensin. Metode penelitian diarahkan pada perbaikan alat ukur dan pengujian karakteristik dengan bukaan katup konstan dan putaran yang bervariasi. Hasil analisis memaparkan efisiensi tertinggi motor bakar Toyota type 7 K sebesar 29,2237% (24,369 kW) pada bukaan katup gas (throttle) 40%, putaran 2800 rpm, sedangkan nilai efisiensi tertinggi Perkins Ford 2271 E sebesar 24,329% (14,8189 kW) pada pembukaan katup gas (throttle) 80%, putaran 2800 rpm.
Pengembangan Desain Konstruksi Kendaraan Becak Motor (Bentor)
Authors: Wibowo Abdi , Suradi Muhammmad , Mulyadi Musrady
Published: July 2024

Tujuan penelitian ini ialah menghasilkan suatu prototipe bentor hasil pengembangan desain konstruksi dari bentor tipe dorong (tipe existing) menjadi bentor tipe gandengan atau tempelan/tipe samping yang memenuhi kriteria persyaratan teknis dan hukum. Manfaat penelitian ini diharapkan dapat memberikan solusi bagi instansi pemerintah daerah dalam penerapan kebijakan regulasi transportasi angkutan darat khususnya dalam mengatasi problem bentor tipe dorong yang selama ini menimbulkan polemik keberadaannya beroperasi di jalan raya. Metode penelitian yang dilakukan ialah dengan cara mengoptimalkan faktor desain teknis (estetika, kekuatan, kenyamanan dan safety) dan meminimalkan komponen bentor existing yang terbuang atau memaksimalkan penggunaan material komponen yang sudah ada. Hal ini diharapkan dapat menekan faktor biaya rekonstruksi dari bentor lama ke bentor yang baru. Penelitian ini meliputi survai data teknik dari segi konstruksi kendaraan bentor berupa pengukuran dimensi awal dari bentor existing dan membuat gambar desain hasil pengembangan konstruksi bentor yakni bentor tipe gandengan/tipe samping. Penelitian ini menghasilkan protoptipe bentor tipe gandengan/tipe samping yang telah memenuhi syarat hukum. Sedangkan syarat teknis diharapkan dapat dipenuhi pada penelitian lanjutan tahap II (tahun 2009).
Developing of A Hierarchical Interface On-Line Data From Scada Systems To ERP Systems
Authors: Marwan Marwan
Published: July 2024

The purpose of this research is to address the problem of on-line data interconnectivity with development of a hierarchical interface which will be able to interchange on-line data from SCADA (Supervisory Control and Data Acquisition) systems to business process systems such as Enterprise Resource Planning (ERP) systems. Some preliminary investigation has been conducted such as the function of real-time data acquisition and monitoring systems of a water utility, and data filtering using a real-time compression algorithmic approach. In order to achieve the aim and objectives of this research, further modelling must be conducted such as refining the filtering algorithm, modelling systems and data hierarchy, identifying system related criteria and developing a hierarchical interface database.
Fungsi Algoritma Genetika Dalam Mencari Rute Terpendek Dengan Mikrokontroler
Authors: Ruslan Ruslan
Published: July 2024

Pada makalah ini akan dipaparkan tentang fungsi algoritma genetika dengan menggunakan mikrokontroler MCS51. Aplikasi yang dipilih untuk percobaan adalah mencari rute terpendek yang menghubungkan suatu tempat asal dan tujuan. Semua proses algoritma genetika seperti membangkitkan populasi awal, evaluasi, seleksi, crossover dan mutasi, dilakukan oleh mikrokontroler MCS51. Jenis kromosom yang digunakan dalam sistem ini adalah bit string. Metode seleksi yang digunakan adalah roulette wheel dan elitsm. Sebuah program bantuan yang beroperasi di komputer, digunakan untuk membuat peta jalan, men-download ke mikrokontroler MCS51 semua informasi yang dibutuhkan. Pengujian telah dilakukan dengan simulasi pada program dan dengan menerapkan pada mikrokontroler untuk menentukan rute terpendek dari suatu lokasi menuju ke lokasi lain. Dari hasil pengujian terlihat bahwa fungsi algoritma genetika pada mikrokontroler dapat berjalan dengan baik dan mampu menentukan rute terpendek yang dapat ditempuh dengan bervariasi model peta.
Analisis Pengaruh Perubahan Kecepatan Udara Pada Saluran Penampang Persegi
Authors: Buana Chandra
Published: July 2024

The study is aimed at finding out the influence of hydraulic radius to equivalent length of fully developed flow; and identifying the characteristics of boundary layer â€˜developmentâ€™ when it reaches the fully developed area as a result of hydraulic radius-changes. The hydraulic radius of each was made different, but their height was the same; i.e. 200 mm. The first wind tunnelâ€™s width was 270 mm, the second was 320 mm, and the other one was 400 mm. The results reveal that there has been a correlation between the thickness of boundary layer, the length of wind tunnel, and Reynolds figures, that is, Î´/x = 2.1525/Re0.3254; and the correlation between equivalent length and fully developed area was obtained by Le/Dh=3.10 Re1/6. This suggests that the Blansius formula can be applied to determining an equivalent of fully developed area in squared-surface wind tunnels, but the constant changed from 4.4 to. 3.10.
Penentuan Parameter Pemodelan Kecepatan Putar Motor Induksi 3 Phasa Menggunakan Jaringan Saraf Tiruan (JST)
Authors: Rudito Hatma
Published: July 2024

Modeling speed control of induction machines 3 phase is very necessary, because will be make it more easier for used in mathematic analysis. In this book simulating modeling parameters is purposing give solution for made mode speed control induction machine 3 phase. And analysis using Universal Field Oriented (UFO) and Direct Field Oriented (DFO). Speed control machine 3 phase can be adapted with changing of load, so that using Neural Network. Result from analysis in this paper to give parameters mode adaptive control system in diagram block type.
Desain Mesin Pengolah Minyak Kelapa Secara Otomatis Kapasitas 20 Liter Per Jam
Authors: Sonong Sonong
Published: July 2024

Research into this which entitle design machine processor of palm oil automatically, aim to can yield the coconut mink of 20 litre each hour. Our research before all only can produce the mean of 10 coconut mink litre each hour. Whereas traditional machine which used by the society in this time only can produce the mean coconut mink of 5 coconut mink litre each hour. The society support with area potency as producer of coconut hibrida, and also request of market of palm oil, pushing to do this research designed the machine have of bigger capacities to be permeable of the labour more and profit society. Its is method, all component supporter of machine done by addition of volume and his strength through planning and calculation. Machine designed by the consist of: machine scar coconut flesh, and magle machine of is result of rasp, at the same time dissociate the result coconut mink with his dregs. Both the machine work automatically through activator motor. Rasp designed use the cylinder turn around the harsh jagged around surface of the cylinder which turned around use the electromotor. Magle machine designed use the plate stenless stell small holey which formed by be like mug which is on its underside is attached by the propeller knife, activator system the used is powered electromotor of low electrics. After done the testing at made machine and compared to the former machine and traditional machine, hence obtained by the result as follows: Former machine only can produce the mean of 10 coconut mink litre each hour, is while the machine design can produce the mean more than 20 coconut mink litre each hour meaning the storey of 50%. Traditional machine only can produce the mean of 5 coconut mink litre each hour mean experience of the improvement of 75% from the machine design.
Deteksi Struktur Permukaan Logam Hasil Heat Treatment dengan Image Processing dan Neural Network (Sub Image Processing)
Authors: Yunus Muh Yusuf
Published: July 2024

Perancangan pebnelitian ini didasarkan atas keinginan penulis untuk memberikan nilai tambah pada praktikum metalurgi di jurusan teknik mesin Politeknik Negeri Ujung Pandang yang sekarang proses praktikumya masih manual. Proses perancangan penelitian ini menggunakan kamera sebagai alat untuk mengambil gambar dari besi yang sudah di treatment kemudian dengan mengunakan pengolahan citra (image processing) maka dapat dihasilkan nilai matrik. Adapun metode image processing yang penulis pergunakan adalah metode deteksi tepi (Edge Detection), hasil dari deteksi tepi ini kemudian diekstraksi menjadi matrik 10 Ã— 10, 20 Ã— 20, 40 Ã— 40, dan 50 Ã— 50 yang akan dipergunakan sebagai pola masukan pada algoritma backpropogasi. Hasil dari pelatihan inilah yang digunakan untuk mendeteksi struktur permukaan logam yang telah dipanaskan dengan pendinginan air, pendinginan dengan oli, serta pendinginan dengan udara. Dengan prosentase pengenalan sekitar 60% untuk parameter unit input 50, unit output 50, hidden layer 2, hidden unit 30 dan iterasi 1000.
Uji Kestabilan Pembangkit Listrik Tenaga Uap Menggunakan Kriteria Nilai Eigen
Authors: Taufik Akhmad
Published: July 2024

Penelitian ini bertujuan untuk menguji nilai konstanta-konstanta mesin pembangkit listrik tenaga uap yang dapat menghasilkan kestabilan frekuensi dan menentukan batas-batas kestabilannya. Penelitian ini dilaksanakan dengan cara pengambilan data-data teknis mesin pembangkit yang kemudian dimodelkan dengan metode pendekatan ruang keadaan. Kestabilan dari hasil pemodelan tersebut diuji dengan nilai konstanta-konstanta mesin dengan menggunakan kriteria nilai Eigen. Dari hasil pengujian, maka didapatkan nilai konstanta-konstanta yang dapat menghasilkan kestabilan nilai frekuensi pembangkit listrik. Dengan menyederhanakan sistem menjadi sistem 2 daerah, diperoleh rentang kestabilan daerah 1 pada perubahan beban sebesar -2% (-1,1 MW) sampai +2,5% (1,375 MW) dan rentang kestabilan daerah 2 pada perubahan beban sebesar -1% (-0,55 MW) sampai +2% (1,1 MW)
Pengaruh Kecepatan Pengadukan dan Penambahan Persentase Magnesium terhadap Kekerasan dan Laju Aus Komposit Matrik Logam dengan Metode Stir Casting
Authors: Arman Arman
Published: July 2024

The cahracteristic of MMCs with stir casting method are influenced by speed of the stirrer, temperature process, percentage of magnesium and volume fraction. This research is stressed on the effect speed of stirrer and percentage of magnesium to characteristic of MMCs (Al/Al2O3) as a product of stir casting process. Materials used in this research are powder (Al2O3), Aluminium ingot and Al-31,3% Mg ingot as wetting agent, and Argon as gas of inert. The parameters used in MMCs manufacturing are stir casting with speed of stirrer 520 and 1510 rpm, at temperature 550Â°C and percentage of magnesium of 2, 5, 8, 10, 15% wt (material balance process). From this research result is obtained that high of speed stirrer and held up of magnesium will improve characteristic from metal matrix composite. At this research is obtained by speed of stirrer 1510 rpm and 15% Mg have composite optimum characteristic of hardness 98 HBN and wear resistance 3,59 Ã— 10-6/mm3/mm of 1510 rpm and 10% Mg.
Pembangkitan Tegangan Tinggi Bolak Balik Menggunakan Kumparan Tesla
Authors: Sonong Sonong
Published: July 2024

Kumparan tesla merupakan alat yang mampu menghasilkan tegangan tinggi mulai dari ribuan volt sampai jutaan volt. Tegangan tinggi yang dihasilkan oleh kumparan tesla adalah tegangan tinggi bolak-balik dengan frekuensi berkisar antara puluhan kilohertz sampai dengan orde MHz. Tegangan keluaran kumparan tesla berbentuk pulsa dengan lebar pulsa bervariasi dari nano detik sampai ratusan mikro detik. Pada awal perkembangannya, kumparan tesla menggunakan sela bola untuk membangkitkan pulsa tersebut. Perkembangan selanjutnya kumparan tesla lebih banyak dikembangkan dengan teknologi semikonduktor untuk menggantikan fungsi sela bola. Selain mudah dalam pengaturan lebar pulsa, teknologi semikonduktor juga lebih ringkas dan praktis. Pada makalah ini akan dibahas perancangan kumparan tesla yang menggunakan inverter frekuensi tinggi dengan range frekuensi antara 150â€“800 KHz. Untuk mengukuran tegangan keluaran kumparan tesla digunakan sela bola standar.Â
Optimalisasi Proses Pengupasan Kulit Tanduk dan Sangrai untuk Peningkatan Kualitas dan Kuantitas Biji Kopi
Authors: Basongan Yosrihard , Habe Muh Arsyad , Dermawan Dermawan
Published: July 2024

Penelitian ini bertujuan memudahkan pelepasan kulit tanduk biji kopi, menurunkan beban kerja para pekerja, meningkatkan kapasitas produksi dan kualitas biji kopi. Metode Penelitian yaitu metode perbaikan desain konstruksi mekanisme pengupasan kulit tanduk pada bagian penggilas, pemisahan bilit dan biji, kecepatan penggilas, dan motor penggerak. Produk hasil gilasan biji kopi diuji pada kecepatan bervariasi, kapasitas gilas, waktu gilas untuk mengetahui kemampuan produk mesin yaitu kuantitas dan kualitas dapat diketahui. Penelitian ini menghasilkan mesin pengupas kulit tanduk biji kopi terdiri dari rangka, meknisme penggilas, motor penggerak, blower pemisah biji kulit dan elemen penggerak. Hasil uji coba menunjukkan kapsitas maksimum 57 kg/jam kualitas pengupasan 95.6% dapat dilakukan oleh 1 orang.
Analisis Kinerja Pendingin Udara Alternatif yang Memanfaatkan Energi Laten Es dengan Dua Heat Exchanger
Authors: Jamal Jamal , Firman Firman
Published: July 2024

Penggunaan mesin pendingin udara dapat menimbulkan masalah yaitu menggunakan energi yang besar, pencemaran lingkungan dari penggunaan freon yang dapat merusak ozon dan harga pengadaannya yang mahal. Sehingga untuk mengatasi masalah tersebut dilakukan analisis kinerja pendingin udara yang memanfaatkan energi laten es dengan dua heat exchanger, yang merupakan tujuan jangka pendek penelitian ini, adapun tujuan jangka panjangnya adalah mengatasi permasalahan global yaitu penggunaan energi yang sangat besar serta pemanasan global akibat penggunaan mesin pendingin ruangan yang tidak ramah lingkungan. Metode yang digunakan menyelesaikan masalah di atas adalah dengan melakukan penelitian pendingin udara alternatif dimana penggunaan freon diganti dengan es sebagai penyerap energi dan penggunaan kompressor digantikan dengan pompa. Pengujian ini memvariasikan kecepatan aliran udara fan pada kompressor yaitu 3,8 m/s, 2,97 m/s dan 2,07 m/s. Pengujian juga memvariasikan debit aliran air dalam pipa sirkulasi yaitu 0,65 Ã— 10-5Â m3/s, 1,26 Ã— 10-5Â m3/s dan 1,88 Ã— 10-5Â m3/s. Pengujian dilakukan secara harian dan sesaat. Hasil pengujian yang dilakukan adalah mesin pendingin udara yang mampu mendinginkan ruangan, tidak menggunakan freon sebagai fluida kerja hingga aman bagi lingkungan dan mesin pendingin udara yang memiliki biaya pengadaan dan pemeliharaan serta perbaikan yang lebih rendah dibandingkan AC berfreon tetapi memiliki biaya operasional yang lebih tinggi. Dari hasil penelitian uji sesaat diperoleh pada debit air konstan diperoleh hubungan efisiensi HE (Î·HE) dengan kecepatan udara (vud) serta hubungan efisiensi sistim (Î·sys) dengan kecepatan udara adalah berbanding lurus. Hasil penelitian uji sesaat diperoleh pada kecepatan udara fan pada heat exchanger konstan diperoleh hubungan efisiensi HE (Î·HE) dengan debit air (Qair) serta hubungan efisiensi sistim (Î·sys) dengan debit air adalah berbanding terbalik. Hasil pengujian peralatan uji dengan uji harian pada setiap pengaturan kecepatan udara diperoleh hubungan antara waktu dengan efisiensi adalah cenderung konstan, baik Efisiensi HE (Î·HE), efisiensi ruang (Î·ruang) maupun efisiensi sistim (Î·sistem).
Ketersediaan Jaringan Prasarana Distribusi Listrik Di Wilayah Permukiman Bumi Tamalanrea Permai Kota Makassar
Authors: Faisal Faisal
Published: July 2024

The aim of the study was to explain the effect of the availability of infrastructure, service, and customer participation on the performance of electrical distribution at Bumi Tamalanrea Permai and the most dominant factor affecting the performance. The study was descriptive quantitative. The data were collected through interview and questionnaire. The results of the study indicate that the availability of infrastructure, service and public participation are affected by several factors: availability of electrical infrastructure outside and inside the house and public road illumination. The role of workers has a great effect on the reliability of electrical system, public/customer participation in paying the electric bill, report to the workers in charge when there is a problem of outage, arid make an effort to public road illumination, are real contribution of community to create the reliability of electrical system at Bumi Tamalanrea Permai settlement in Makassar city.
Long-Term Effects of the Multicomponent Program BrainProtect® on Cognitive Function: One-Year Follow-Up in Healthy Adults
Authors: Kunkler Michelle Celine , Falkenreck Julia Maria , Ophey Anja , Dencker Katharina , Friese Andrea , Jahr Petra , Kalbe Elke , Nelles Gereon , Polidori M. Cristina
Published: July 2024

Background:

Age-related neuronal changes impact cognitive integrity, which is a major contributor to health and quality of life. The best strategy to prevent cognitive decline and Alzheimer’s disease is still debated.

Objective:

To investigate the long-term effects of the eight-week multicomponent training program BrainProtect® on cognitive abilities compared to general health counseling (GHC) in cognitively healthy adults in Germany.

Methods:

Healthy adults (age ≥50 years) previously randomized to either GHC ( n = 72) or BrainProtect (intervention group, IG, n = 60) for eight-weeks (once weekly, 90 minutes, group-based) underwent a comprehensive neuropsychological test battery and health-related quality of life (HRQoL) evaluation 3- and 12-months after intervention end.

Results:

Dropout rates were n = 8 after 3 months and n = 19 after 12 months. No significant long-term effect of BrainProtect was observed for the primary endpoint Consortium to Establish a Registry for Alzheimer’s Disease (CERAD-Plus) total score. Logical reasoning was significantly improved ( p = 0.024) 12 months after completion of the training program in IG participants compared to the GHC group independent of sex, age, education, diet, and physical activity. In IG participants, thinking flexibility ( p = 0.019) and confrontational naming ( p = 0.010) were improved 3 months after completing the intervention compared to the GHC group, however, after conservative Bonferroni adjustment, significance was lost.

Conclusions:

BrainProtect® independently improved logical reasoning compared to GHC up to 12 months after cognitive training’s end in healthy adults. To uncover the long-term clinical significance of multicomponent cognitive training in healthy adults, studies with larger sample size and frequent follow up visits are necessary.
Porphyromonas gingivalis LPS and Actinomyces naeslundii Conditioned Medium Enhance the Release of a Low Molecular Weight, Transcriptionally Active, Fragment of Glycogen Synthase-3 Kinase in IMR-32 Cell Line
Authors: Singhrao Sim K. , Consoli Claudia , Dennison Sarah R. , Kanagasingam Shalini , Welbury Richard
Published: July 2024

Background:

Glycogen synthase-3 kinase (GSK3) is one of the major contributors of tau hyperphosphorylation linked to neurofibrillary tangles in Alzheimer’s disease (AD).

Objective:

To determine a mechanism of GSK-3β activation by two periodontal bacteria consistently confirmed in AD autopsied brains.

Methods:

Porphyromonas gingivalis FDC381 and Actinomyces naeslundii ATCC10301 conditioned media were collected. IMR-32 cells were challenged for 48 h with the conditioned media alongside P. gingivalis (ATCC33277) ultrapurified lipopolysaccharide (LPS) designated Pg.LPS under established cell culture conditions either alone or combined. Gene expression and protein analyses for GSK-3β were carried out.

Results:

qPCR demonstrated that GSK-3β gene was overexpressed in IMR-32 cells treated with Pg.LPS with a 2.09-fold change ( p = 0.0005), while A. naeslundii treated cells demonstrated 1.41-fold change ( p = 0.004). Western blotting of the cells challenged with Pg.LPS ( p = 0.01) and A. naeslundii conditioned medium ( p = 0.001) demonstrated the 37 kDa band for each treatment with variable intensity across the medium control. Immunohistochemistry with the GSK-3β of the IMR-32 cells challenged with Pg.LPS and A. naeslundii alone demonstrated cytoplasmic and nuclear localization.

Conclusions:

Exposure to various bacterial factors upregulated the gene expression of GSK-3β. Western blotting for GSK-3β confirmed the presence of the cleaved fragment by Pg.LPS (37 kDa band p = 0.01) and A. naeslundii conditioned medium (37 kDa band p = 0.001). Immunostaining demonstrated both cytoplasmic and nuclear localization of GSK-3β. Therefore, Pg.LPS and an unknown factor from the A. naeslundii conditioned medium mediated GSK-3β activation via its transcriptionally active, cleaved, fragment. These virulence factors in the body appear to be detrimental to brain health.
Effectiveness of Prolonged Antibiotic Prophylaxis in Radical Cystectomy: Preliminary Analysis of the MACS Randomized Clinical Trial
Authors: Berkut Mariya Vladimirovna , Belyaev Alexey Michaylovich , Galunova Tatyana Yurievna , Tyapkin Nikolay Ivanovich , Reva Sergey Aleksandrovich , Nosov Alexander Konstantinovich
Published: July 2024

BACKGROUND: Standard 24-hour antibiotic prophylaxis is widely employed to minimize the risk of infection complications within 30 days following radical cystectomy. However, a considerable variety of protocols and drug combinations don’t prevent a high complication rate, ranging from 37 to 67%. This paper presents the interim analysis of the MACS clinical trial, comparing antibiotic prophylaxis regimens by duration. OBJECTIVE: To evaluate the rate of infection complications within 30 days following radical cystectomy by comparing standard 24-hour antibiotic prophylaxis (Group A) with a prolonged 120-hour regimen (Group B). METHODS: Patients were randomized in a 1 : 1 ratio. The primary endpoint was the evaluation of the frequency of infection complications. The secondary endpoints were the rate of re-administrating antibiotics and the dynamics of the inflammation biomarker. RESULTS: A total of 78 patients (85.0% of the sample size) were enrolled (Group A: 40 and Group B: 38). The baseline and perioperative features were balanced between groups. The overall complication rate was higher in Group A (65.0% vs. 41.1%, p = 0.043). The infection complication rate was 2.7 times higher in the standard antibiotic prophylaxis group: 37.5% compared to 18.4% cases in Group B (p = 0.041), and upper urinary tract infection was more frequent in Group A (22.5% vs. 2.6%). The prolonged antibiotic prophylaxis reduced the overall frequency of infection complications compared with standard 24-hour prophylaxis (RR = 0.12; 95% CI 0.02–0.88; p = 0.037). CONCLUSIONS: In this interim analysis, the administration of prolonged antibiotic prophylaxis over 120 hours appears to be safe and feasible, demonstrating a reduction in the total number of complications, particularly infection complications.
Risk factors of post discharge falls in patients undergoing total knee arthroplasty: An integrative review
Authors: Sadiq Samreen , Noor Rabiya , Akram Rizwan
Published: July 2024

BACKGROUND: Total knee arthroplasty (TKA) is a widely performed surgical procedure aimed at alleviating pain and restoring functionality in individuals suffering from knee osteoarthritis. Despite substantial benefits of TKA, patients are exposed to potential risks, including the occurrence of falls during their recovery period following discharge from the hospital. OBJECTIVE: This integrative review endeavors to comprehensively investigate the existing body of literature to identify and assess the diverse factors that contribute to occurrence of post-discharge falls among TKA patients. Through the synthesis of available research, this study seeks to offer valuable insights that can guide clinical practices and interventions designed to mitigate the incidence of post-TKA falls, ultimately enhancing patient outcomes and quality of healthcare. METHODS: An integrative review was conducted and databases were searched including Pubmed, PEDro, Cochrane, and SPORTDiscus from 2000 to 2024. A thorough search was performed to retrieve articles missed through databases as well as unpublished grey literature. Methodological quality assessment was performed using Newcastle-Ottawa Scale for Case Control and Cohort studies and AXIS tool for cross-sectional study. RESULTS: Eleven articles finally met the inclusion criteria and were included in the review based on eligibility. There were 8 cohort studies (7 prospective cohorts, 1 retrospective cohort), 2 case control studies, and 1 cross-sectional study. The prospective cohort studies included in the review collected data in real-time as events occurred, making them particularly relevant for studying post-TKA falls. CONCLUSION: Patients who underwent TKA are at risk of post-discharge falls. Several key risk factors have been identified, including advancing age, female gender, reduced proprioception, psychiatric disorders, living alone, and knee pain in the operated knee. It is important to recognize that the significance of these risk factors can vary depending on individual circumstances and contexts.
Research progresses of imaging studies on preoperative prediction of microvascular invasion of hepatocellular carcinoma
Authors: Li Yi-Xiang , Lv Wei-Long , Qu Meng-Meng , Wang Li-Li , Liu Xiao-Yu , Zhao Ying , Lei Jun-qiang
Published: July 2024

Hepatocellular carcinoma (HCC) is the predominant form of primary liver cancer, accounting for approximately 90% of liver cancer cases. It currently ranks as the fifth most prevalent cancer worldwide and represents the third leading cause of cancer-related mortality. As a malignant disease with surgical resection and ablative therapy being the sole curative options available, it is disheartening that most HCC patients who undergo liver resection experience relapse within five years. Microvascular invasion (MVI), defined as the presence of micrometastatic HCC emboli within liver vessels, serves as an important histopathological feature and indicative factor for both disease-free survival and overall survival in HCC patients. Therefore, achieving accurate preoperative noninvasive prediction of MVI holds vital significance in selecting appropriate clinical treatments and improving patient prognosis. Currently, there are no universally recognized criteria for preoperative diagnosis of MVI in clinical practice. Consequently, extensive research efforts have been directed towards preoperative imaging prediction of MVI to address this problem and the relative research progresses were reviewed in this article to summarize its current limitations and future research prospects.
Risk-Taking Behavior Differs Between Older Adults with and without Mild Cognitive Impairment
Authors: Therrien Sarah , Anthony Mia , Turnbull Adam , Lin F. Vankee
Published: July 2024

Background:

Adequately evaluating risk and making decisions is vital but understudied for older adults living independently but with compromised cognition, as seen in those with mild cognitive impairment (MCI), specifically those with amnestic MCI (aMCI) which is associated with higher risk of conversion to Alzheimer’s disease.

Objective:

We propose to comprehensively evaluate risk-taking behaviors across domains important for everyday activities between an aMCI group and their cognitively healthy counterparts (HC).

Methods:

A case-control study design. Data on risk-taking behaviors via the Domain-Specific Risk-Taking Scale (DOSPERT), and candidate confounding mental health factors (i.e., neurodegeneration, depression, and fatigue) were collected. Analyses on group difference and interaction between group and confounding factors on risk-taking behaviors were conducted.

Results:

The aMCI group showed a higher likelihood of risk-taking than HC ( t = 4.38, df = 73, p < 0.001). Moderation analysis showed fatigue ( F = 5.91, p = 0.018) and presence of depression ( F = 4.52, p = 0.037), but not neurodegeneration, as significant moderators for group and DOSPERT total score, controlling for sex. In post-hoc analyses, there was a significant relationship between both fatigue ( B = –7.83, SE = 3.65, t = –2.14, p = 0.036), and presence of depression ( B = –20.80, SE = 9.97, t = –2.09, p = 0.041), with DOSPERT total score for HC but not for aMCI. There were no significant relationships between neurodegeneration, fatigue, or depression with any specific risk-taking domains after correction for multiple comparisons.

Conclusions:

Our results show differences in risk-taking behavior between older adults with and without intact cognition, and overall decision-making is affected by fatigue and depression in HC but not aMCI, together suggesting the importance of cognition in the ability to adjust risk-taking behaviors.
Attitudes and Preferences Towards Screening for Dementia with a Focus on Ethnic Minority and Low Socio-Economic Groups: A Systematic Review of Research Studies Written in the English Language
Authors: Brar Manjot , Mc Ardle Ríona , Hagan Alexander , Al-Oraibi Amani , Hanjari Matilda , Stephan Blossom , Brayne Carol , Lafortune Louise , Bains Manpreet , Qureshi Nadeem , Robinson Louise
Published: July 2024

Background:

Increased understanding of dementia risk-reduction and early detection of Alzheimer’s disease and related disorders has spurred interest in the identification of risks for dementia, underlying putative biologies, or dementia itself. Implementation of such approaches require acceptability to the public. Research prior to 2012 indicated limited acceptability for population dementia screening. The changing landscape of dementia prevention research may influence recent perceptions. Additionally, perspectives from underserved populations, such as ethnic minorities and low socio-economic groups, are lacking.

Objective:

In this systematic review, we sought published studies since 2012 on attitudes and preferences of people with dementia, carers and the general public from ethnic minorities and low socio-economic groups regarding dementia screening.

Methods:

This review was preregistered on PROSPERO (CRD42023384115) and followed PRISMA guidelines. Key search terms were entered into five databases. Articles were included if they focused on population or risk screening for dementia via primary/community care-based assessments, and which included majority ethnic minority or low socio-economic groups or discretely considered these groups in data analysis. Data were synthesized narratively.

Results:

Seven studies reported perspectives of ethnic minorities regarding dementia screening; one study included people from low socio-economic groups. Results indicated that participants from ethnic minorities were willing to undergo dementia screening. Predictors of willingness included belief in benefits, desire to boost diversity, and to implement lifestyle changes. Unwillingness was associated with anxiety regarding results.

Conclusions:

Although there seems to be high acceptability for screening in the studied groups, more research is necessary to explore the practical considerations for screening such as cultural and economic barriers, trust, and post-screening actions.
Social Dysfunction and Apathy: Transdiagnostic Domains in Late-Life Cognitive Disorders
Authors: Lozupone Madia , Dibello Vittorio , Sardone Rodolfo , Altamura Mario , Bellomo Antonello , Daniele Antonio , Solfrizzi Vincenzo , Resta Emanuela , Panza Francesco
Published: July 2024

Social dysfunction is a maladaptive process of coping, problem solving, and achieving one’s goals. A new definition of apathy was cross-linked to social dysfunction, with a reduced goal-directed behavior and social interaction as a separate dimension. We hypothesized that these two neuropsychiatric symptoms may be included in the mild behavioral impairment diagnostic framework, operationalizing and standardizing late-life neuropsychiatric symptom assessment, to improve risk determination of dementia. Social dysfunction and apathy were transdiagnostic and prodromic for late-life cognitive disorders. A transdiagnostic approach could provide a useful mean for a better understanding of apathy and related conditions such as social behavior.
Investigation of social isolation and depression in female employees with urinary incontinence during the COVID-19 pandemic period
Authors: Gümüşsoy Süreyya , Dönmez Sevgül
Published: July 2024

BACKGROUND: Urinary incontinence (UI) affects almost one-third of adult women. This is often taken as a section of the aging process and incurable In general, women perceive UI as more of a social issue and a taboo rather than a medical problem; they are reluctant to discuss the matter or seek assistance. OBJECTIVE: This research was conducted to investigate the level of social isolation and depression in female employees with UI during the COVID-19 pandemic period. METHODS: The study was done with 533 paticipant. The study data were done using the Nottingham Health Profile Social Isolation Scale (NHPSIS), and Beck Depression Inventory (BDI). RESULTS: The total scores of the NHPSIS and BDI were found to be 18.55±3.3 (minimum = 5, maximum = 25) and 49.22±11.4 (minimum = 12, maximum = 60), respectively. In the Pearson correlation analysis, a strong, statistically significant, and positive correlation was discovered between NHPSIS and the average BDI total scores among women. CONCLUSION: The level of depression and social isolation were obtained to be high among UI women who had a mix UI, high frequencies of UI, belong to higher age groups, singles, and high body mass index. It was showed that the levels of depression and social isolation scores were showed to be high in women had UI.
Multiple semantic X-ray medical image retrieval using efficient feature vector extracted by FPN
Authors: Zhi Lijia , Duan Shaoyong , Zhang Shaomin
Published: July 2024

OBJECTIVE: Content-based medical image retrieval (CBMIR) has become an important part of computer-aided diagnostics (CAD) systems. The complex medical semantic information inherent in medical images is the most difficult part to improve the accuracy of image retrieval. Highly expressive feature vectors play a crucial role in the search process. In this paper, we propose an effective deep convolutional neural network (CNN) model to extract concise feature vectors for multiple semantic X-ray medical image retrieval. METHODS: We build a feature pyramid based CNN model with ResNet50V2 backbone to extract multi-level semantic information. And we use the well-known public multiple semantic annotated X-ray medical image data set IRMA to train and test the proposed model. RESULTS: Our method achieves an IRMA error of 32.2, which is the best score compared to the existing literature on this dataset. CONCLUSIONS: The proposed CNN model can effectively extract multi-level semantic information from X-ray medical images. The concise feature vectors can improve the retrieval accuracy of multi-semantic and unevenly distributed X-ray medical images.
Pemeriksaan Kadar Serum Glutamic Pyruvic Transaminase (SGPT) Pada Peminum Alkohol Dan Perokok Aktif Di Kecamatan Rappocini Kota Makassar
Authors: Rahmawati Rahmawati , Suardi Suardi , Fatmawati Andi , Hasnah Hj. , Yusuf St. Halwatia
Published: July 2024

Minuman beralkohol dan merokok dapat menyebabkan gangguan fungsi hati dan metabolisme alkohol menghasilkan asetaldehid, sehingga dapat menyebabkan kerusakan pada hati. Gangguan pada hati ditandai meningkatnya Kadar Serum Glutamic Pyruvic Transaminase (SGPT). Penelitian ini dilakukan untuk mengetahui kadar SGPT pada peminum alkohol dan perokok aktif di Makassar dengan metode IFCC dengan besar sampel sebanyak 10 orang. Jenis penelitian ini adalah observasi laboratorik menggunakan teknik purposive sampling dengan kriteria yaitu  telah mengkonsumsi alkohol dan merokok dengan kisaran 2-10 tahun,  berjenis kelamin laki-laki, berusia  20-45 tahun dan tidak mengkonsumsi obat-obatan seperti antibiotik atau Paracetamol. Hasil penelitian yang  diperoleh yaitu sebanyak 8 orang (80%) dengan kadar SGPT yang normal dan sebanyak 2 orang (20%) dengan kadar SGPT yang meningkat. Hal ini dapat disimpulkan bahwa peminum alkohol dalam jangka waktu yang panjang beresiko mengalami peningkatan kadar enzim SGPT dalam hati jika mengkonsumsi dalam waktu yang lama.
Kata Kunci: Kadar SGPT, Pengonsumsi Alkohol, Perokok Aktif
Kepuasan Pasien Terhadap Pemberian Informasi Obat Di Puskesmas Tamalate Kota Makassar
Authors: Fadillah Maharani , Adhayanti Ida , Rante Pakadang Sesilia
Published: July 2024

Providing drug information to patients is one of the important indicators for patients in the successful use of their drugs. This study was conducted at the Tamalate Health Center in Makassar City with the aim of evaluating patient satisfaction with the provision of drug information. Evaluation of patient satisfaction in this study used the services quality method, namely by measuring patient satisfaction on five dimensions of services, namely tangible, reliability, responsiveness, assurance, and empathy. The respondents involved amounted to 100 people obtained using accidental sampling. The research data were obtained using a questionnaire with Likert scale. The results obtained were analyzed by gap analysis in reality with expectations. A positive gap value or zero (0) indicates that the patient is satisfied and a negative gap value indicates that the patient is dissatisfied. In this study, an overall patient satisfaction level of 76.67% (very satisfied) was obtained. The results of the gap analysis obtained in the tangible dimension (tangibel) are -0.09, in the dimension of reliability (reliability) is -0.54, in the dimension of responsiveness (responsiveness) is -0.07, in the dimension of assurance (assurance) is 0.01, and in the dimension of empathy (empathy) is -0.06.
Pemberian informasi obat kepada pasien adalah salah satu indikator penting bagi pasien dalam keberhasilan penggunaan obatnya. Penelitian ini dilakukan di Puskesmas Tamalate Kota Makassar dengan tujuan untuk mengevaluasi kepuasan pasien terhadap pemberian informasi obat. Evaluasi kepuasan pasien pada penelitian ini menggunakan metode service quality, yaitu dengan mengukur kepuasan pasien pada lima dimensi pelayanan, yaitu dimensi berwujud (tangible), kehandalan (reliability), ketanggapan (responsiveness), jaminan (assurance), dan empati (empathy). Responden yang terlibat berjumlah 100 orang yang diperoleh dengan menggunakan accidental sampling. Data penelitian diperoleh menggunakan kuesioner dengan skala likert. Hasil yang diperoleh dianalisis dengan analisa gap (kesenjangan) pada kenyataan dengan harapan. Nilai gap yang positif atau nol (0) menandakan bahwa pasien merasa puas dan nilai gap yang negatif menandakan bahwa pasien merasa tidak puas. Pada penelitian ini, diperoleh tingkat kepuasan pasien secara keseluruhan sebesar 76,67% (sangat puas). Hasil analisis gap yang diperoleh pada dimensi berwujud (tangibel) adalah -0,09, pada dimensi kehandalan (reliability) adalah – 0,54, pada dimensi ketanggapan (responsiveness) adalah -0,07, pada dimensi jaminan (assurance) adalah 0,01, dan pada dimensi empati (empathy) adalah -0,06.
Penyuluhan Di SDIT Ibnul Qayyim Makassar
Authors: Suaib Fatmawaty , Sahariah Rowa Sitti , Masud Hikmawati
Published: July 2024

Tumbuh kembang anak usia sekolah yang optimal tergantung pada pemberian nutrisi dengan kualitas dan kuantitas yang benar. Dalam masa tumbuh kembang tersebut pemberian nutrisi atau asupan zat gizi pada anak tidak selalu dapat dilaksanakan dengan sempurna. Pengetahuan gizi anak sangat berpengaruh terhadap pemilihan makanan di sekolah maupun dirumah. Pengetahuan anak dapat diperoleh baik secara internal maupun eksternal. Tujuan kegiatan pengabdian masyarakat ini dilakukan untuk meningkatkan pengetahuan siswa SDIT Ibnul Qayyim Makassar serta melakukan pengukuran antropometri. Kegiatan ini diikuti 35 siswa yaitu 18 siswi dari kelas 1B dan 17 siswi dari kelas 1D, waktu pelaksanaan pada tanggal 27 Oktober 2023. Hasil pengetahuan siswa mengalami peningkatan yaitu 80% setelah pemberian materi serta menjawab pertanyaan selingan. Adapun hasil berdasarkan pengukuran antropometri hingga perhitungan kebutuhan gizi yaitu 28 siswi dengan kategori baik, 4 orang siswi dengan kategori lebih, dan 2 orang dengan status gizi obesitas, serta 1 orang siswi dengan kategori status gizi buruk. Keantusiasan peserta penyuluhan dapat dilihat dari memberi pertanyaan di sela – sela pemateri memaparkan materinya masing – masing. Sebaiknya para penyuluh bisa lebih cepat tanggap ketika para peserta diskusi dalam keadaan tidak kondusif.
Penggunaan Scrapbook dan Flipchart Sebagai Media Peningkatan Pengetahuan Kesehatan Gigi dan Mulut
Authors: Priyambodo Ardian , Liasari Ira , Supriatna Agus , Jumriani  , Mukmin Nurhidayah
Published: July 2024

Kesehatan gigi dan mulut adalah aspek penting dari kesejahteraan kita, karena masalah gigi dan gusi yang tidak diobati bisa menyebabkan rasa sakit, mengganggu kemampuan mengunyah, dan bahkan mengganggu kesehatan tubuh secara keseluruhan. Hal ini sangat penting bagi anak-anak usia sekolah yang rentan terhadap masalah kesehatan gigi. Pada anak-anak usia 5-9 tahun, prevalensi kerusakan gigi, gigi berlubang, dan penyakit mulut mencapai sekitar 54,0%. Penelitian ini bertujuan untuk membandingkan efektivitas penggunaan scrapbook dan flipchart sebagai media edukasi dalam meningkatkan pengetahuan tentang kesehatan gigi dan mulut di kalangan siswa SDN 133 Pewa, Desa Pasui, Kecamatan Buntu Batu, Enrekang.Penelitian ini menggunakan desain eksperimental kuantitatif dengan pendekatan kuasi-eksperimen, dengan format dua kelompok pre-test dan post-test. Teknik pengambilan sampel yang digunakan adalah quota sampling, dengan total 30 siswa—15 siswa dalam kelompok scrapbook dan 15 siswa dalam kelompok flipchart. Analisis data dilakukan menggunakan uji Wilcoxon dan uji Mann-Whitney untuk mengevaluasi hasilnya. Hasil penelitian menunjukkan adanya peningkatan signifikan dalam pengetahuan tentang kesehatan gigi dan mulut setelah intervensi pada kedua kelompok. Hasil uji Mann-Whitney menunjukkan p-value = 0,004, yang berarti ada perbedaan signifikan dalam efektivitas antara penggunaan media edukasi scrapbook dan flipchart. Baik media scrapbook maupun flipchart efektif dalam meningkatkan pengetahuan siswa tentang kesehatan gigi dan mulut, dengan perbedaan yang signifikan dalam dampaknya. Studi ini menekankan pentingnya memilih alat edukasi yang tepat untuk meningkatkan pengetahuan kesehatan di kalangan anak-anak usia sekolah.