Preloading Model on Soft Soil with Inclusion Thermal Induction Vertical and Incline Types

Soft clay has a relatively low subgrade bearing capacity. The aim is to obtain physical values, mineralogy, mechanical strength values, values for reduction. The research method used is preloading in a test tube measuring 50×70×150 cm. Each cycle of preloading and thermal induction used a fixed load of 0.015 kg/cm². Thermal induction is given vertically and obliquely with temperature variations of 100, 200, 300, and 400 °C. The main observation point is a distance of 15 cm from the center of the induction. At 400 °C inclined induction, the water content is 17.36% (from the initial water content of 59.07%), the soil cohesion is 21.75. kN/m², the value of unconfined compressive strength is 67.72 kN/m², the highest modulus of elasticity is 4593 kN/m2, and the decrease is 5.13 cm. XRD, SEM, EDS results before heating showed mineralogy 0 (65.06%), Ca (13.30%), Na (3.64%), Mg (2.15%), Al (6.63%), Si (8.52%), Sn (0.70%) and did not change significantly after heating at 400 °C. The results after heating included 0 (58.39%), Ca (14.09%), Na (0.72%), Mg (1.16%), Al (6.63%), Si (14.72%), Sn (2.54%). The novelty obtained is to change very soft conditions became medium conditions. Doi: 10.28991/cej-2021-03091705 Full Text: PDF

AKTIVITAS ANALGESIK EKSTRAK ETANOL DAUN SOYOGIK (Saurauia bracteosa DC) PADA TIKUS PUTIH JANTAN GALUR WISTAR

ABSTRACT Soyogik leaves (Saurauia bracteosa DC) are plants that have flavonoid compounds that act as analgesics. This study aims to test the analgesic activity of soyogic leaf extract on male white rats Wistar strain using the thermic pain induction method. This research method is laboratory experimental, using male white rats (Rattus novergicus). The results obtained from the number of responses of mice between before and after giving the test solution. The treatment was initiated by thermal induction of pain in rats. Furthermore, the rat response was calculated, then given negative control (CMC), positive control (paracetamol), and soyogic leaf extract with a dose of 0.375 g / KgBB, 0.75 g / KgBB and 1.5 g / KgBB. The response of the mice after being given the treatment was seen from the 30th, 60th, 90th, and 120th minutes. Data were analyzed using the SPSS program, the real differences between the treatments were tested by one way ANOVA. The results showed that soyogic leaf extract with a dose of 0.375 g / KgBB, a dose of 0.75 g / KgBB and a dose of 1.5 g / KgBB have analgesic activity. Keywords: analgesics, Saurauia bracteosa DC, Rattus norvegicus ABSTRAK Daun soyogik (Saurauia bracteosa DC) merupakan tanaman yang memiliki senyawa flavonoid yang berperan sebagai analgesik. Penelitian ini bertujuan untuk menguji aktivitas analgesik dari ekstrak daun soyogik pada tikus putih jantan galur wistar dengan metode induksi nyeri cara termik. Metode penelitian ini adalah eksperimental laboratorium, menggunakan tikus putih jantan (Rattus novergicus). Hasil penelitian diperoleh dari jumlah respon tikus antara sebelum dan sesudah pemberian larutan uji. Perlakuan diawali dengan induksi nyeri cara termik pada tikus. Selanjutnya dihitung jumlah respon tikus, kemudian diberikan kontrol negatif (CMC), kontrol positif (paracetamol), dan ekstrak daun soyogik dosis 0,375 g/KgBB, 0,75 g/KgBB dan 1,5 g/KgBB. Respon tikus setelah diberikan perlakuan dilihat mulai dari menit ke 30, 60, 90, dan 120. Data dianalisis menggunakan program SPSS, beda nyata antar perlakuan diuji dengan one way ANOVA. Hasil yang didapat menunukkan ekstrak daun soyogik dosis 0,375 g/KgBB, dosis 0,75 g/KgBB dan dosis 1,5 g/KgBB memiliki aktivitas analgesik. Kata Kunci: analgesik, Saurauia bracteosa DC, Rattus norvegicus

Use of an Evolution in Tecartherapy for Muscle Improvement and Treatment of Sports Injuries

Radiofrequency assisted medical devices have evolved dramatically in the last two decades, such that a simple set of fairly basic tools has now become an extremely sophisticated option. Most importantly, a physician’s understanding of these devices can maximize treatment results. Diathermy, meaning “through heat,” consists in the application of short-wave electromagnetic energy. The factor that determines whether a diathermy machine will increase body temperature is the amount of energy absorbed by the tissue. The development of this device allows selecting the frequency to apply between 0.8 1 and 1.2 MHz; the application of high energy power, through several channels and increasing the treatment area, allows taking the radiofrequency to another level in rehabilitation sports medicine. RF is applied to the target area by a handpiece that delivers energy, while a grounding pad is placed elsewhere on the body for the energy to pass through. The entry of RF into the body at the site of contact with the active electrode leads to heating a volume of tissue. This ability to heat a volume of tissue in a non-invasive way produces the immediate contraction of collagen, and the delayed synthesis of collagen, by thermal induction fibroblasts, and the production of epithelial, vascular growth factors. RF has a firm, safe and increasingly popular place in the therapeutic arsenal of sports medicine.

Addition of Selected Plant-Derived Proteins as Modifiers of Inulin Hydrogels Properties

The aim of the study was to determine the effects of pea and soy protein addition (1, 3, 6 g/100 g) on inulin hydrogels properties. Inulin hydrogels (20 g/100 g) were obtained by thermal induction. It was stated that tested plant protein might be used as a modifier of inulin hydrogels properties. The addition of pea and soy protein to inulin hydrogels resulted in networks with more a compact and homogeneous structure. The increase of the protein concentration caused the structure of the hydrogels to get smoother, more cohesive, and less granular. Pea and soy protein addition (3–6 g/100 g) to hydrogels allowed to obtain higher values of yield stress, texture (firmness, adhesiveness) and spreadability parameters. At a protein concentration of 6 g/100 g, the firmness of inulin hydrogels was seven times higher for those with pea protein (1.87 N) and ten times higher for those with soy protein (2.60 N) compering to the control hydrogel (0.24 N). The transmission profiles of hydrogels with incorporated 6 g/100 g of soy proteins showed the slowest motion of the particles, which indicates the highest stability of gel. As the concentration of protein addition increased, a reduction in the lightness was observed.

Analgesic Activity of Ethanol Extract of Temu Giring Rhizome (Curcuma heyneana Val & Zijp) in Mice

Temu giring (Curcuma heyneana Val & Zijp) is a traditional medicinal plant that is believed in community as an analgesic. The objective of this research was to determine the analgesic activity of the C. heyneana rhizome by using infra red (IR) thermal induction method in mice. Mice were divided into 7 groups. Group 1 served as negative control, group 2,3,4,5 served as treatment groups which is given ethanolic extract of C. heyneana rhizome at dose of 5, 25, 125, and 625 mg/kg respectively, group 6 and 7 served as comparable groups, given antalgin 65 mg/kg and morphine sulphate 1.3 mg/kg respectively. The observation have been done, included to pain resistance of mice which exposed by infra red (IR) every 10 minutes for 80 minutes. The data were analyzed by ANOVA at the significance level of 95%. Ethanolic extract of C. heyneana at the doses of 25, 125, and 625 mg/kg had significant effect to reduce the pain compared to the negative control (p<0.05). Ethanolic extract of C. heyneana rhizome at dose of 125 mg/kg, had the same effect to antalgin 65 mg/kg (p≥0.05), while the ethanolic extract of C. heyneana at the dose of 625 mg/kg had the same effect as morphine sulfate 1.3 mg/kg (p≥0.05). It can be concluded that ethanolic extract of C. heyneana rhizome has analgesic activity. Keywords: temu giring, analgesic, Curcuma heyneana, rhizome