Indikasi Sesar Naik di Plampang, Pulau Sumbawa Berdasarkan Analisis Gempa Bumi 13 Juni 2020

ABSTRAK. Keberadaan sesar aktif dengan pola sesar naik di daerah Plampang berhasil diungkap dari sebaran hiposenter terelokasi, hasil inversi momen tensor, dan pemodelan perubahan tegangan Coulomb. Studi ini juga berhasil mengungkap sumber gempa pada sesar aktif tersebut dengan kedalaman relatif dangkal yang bisa menjadi ancaman di Pulau Sumbawa jika magnitudo maksimumnya rilis di masa yang akan datang. Hasil relokasi hiposenter menunjukkan sebaran episenter berarah barat daya–timur laut. Hal ini didukung juga oleh hasil inversi momen tensor yang menunjukkan bidang sesar berarah barat daya–timur laut (N2240E) dengan dip cukup curam (490). Penampang seismisitas vertikal pada arah dip menunjukkan adanya pola sesar naik yang semakin landai seiring bertambahnya kedalaman. Bidang sesar yang landai menunjukkan struktur decollement pada kedalaman 10–15 km dan berangsur menjadi curam sebagai struktur splay fault pada kedalaman 0–10 km. Hal tersebut konsisten dengan hasil inversi momen tensor yang menunjukkan mekanisme pergerakan sesar naik terjadi pada kedalaman 7 km. Pemodelan perubahan tegangan Coulomb menunjukkan adanya penambahan stress di luar area bidang sesar sehingga memicu terjadinya aftershocks. Sebaran gempa susulan menunjukkan adanya bidang sesar hipotetik dengan panjang 19 km dan lebar 12 km. Sesar sebesar ini berpotensi membangkitkan gempa dengan kekuatan Mw 6,4. Gempa Sumbawa 13 Juni 2020 dengan magnitudo M 5,3 disebabkan oleh sebagian kecil aktivitas dari bidang sesar tersebut.ABSTRACT. The existence of an active fault with a reverse fault mechanism in the Plampang area is successfully delineated from the distribution of the relocated hypocenter, the moment tensor inversion, and the Coulomb stress changes. This study also reveals the source of the earthquake in the active fault with a relatively shallow depth which can be a threat on Sumbawa Island if the maximum magnitude is released in the future. Seismicity from hypocenter relocation shows the distribution of the epicenter with a southwest–northeast direction. It is also supported by the moment tensor inversion result which shows the fault plane trending southwest–northeast (N2240E) with a steep dip (490). The vertical section of seismicity in the dip direction shows that the slope of the plane has a lower angle with increasing depth. The lower angle of a fault plane shows a decollement structure at a depth of 10–15 km and gradually becomes steep as a splay fault structure at a depth of 0–10 km. It is consistent with the result of moment tensor inversion which shows the mechanism of a reverse fault that occurred at a depth of 7 km. The Coulomb stress changes show the stress increasing outside the fault plane area, which triggers aftershocks. The distribution of aftershocks shows a hypothetical fault plane of 19 km long and 12 km wide. A fault of this size has the potential to generate an earthquake with a magnitude maximum of Mw 6.4. The Sumbawa earthquake on June 13, 2020, having M 5.3 was caused by a small part of the activity from the fault.

Skinfold thickness in men with mild and severe psoriasis without and taking into account the somatotype

Significant prevalence and decline in quality of life caused by psoriasis in combination with the lack of etiotropic methods of its treatment, put this disease, in terms of relevance for modern medicine on a par with diabetes, hypertension, asthma etc. That is, there is a need to find easily accessible markers that would determine the susceptibility to this disease. The aim of the study was to establish the differences in the skinfold thickness between healthy and/or psoriatic Ukrainian men depending on the severity of the disease without and taking into account the somatotype. For 32 Ukrainian men of the first mature age, patients with mild psoriasis and 68 men with severe psoriasis (according to the PASI index) were determined skinfold thickness according to Bunak and determined the somatotype according to the Heath-Carter scheme. The control group consisted of 82 healthy men of similar age, selected from the database of the research center of National Pirogov Memorial Medical University, Vinnytsya. Statistical data processing was performed in the license package “Statistica 5.5” using non-parametric methods of evaluation of the obtained results. It was found that in patients with mild or severe psoriasis of men without division into somatotypes and in representatives of the mesomorphic somatotype compared to healthy men, the skinfold thickness is significantly higher at the lower angle of the scapula, abdomen and side, and significantly lower on the back and front of the shoulder, chest and thighs. When comparing the skinfold thickness between patients with mild or severe psoriasis of endo-mesomorphic somatotype with healthy men of similar somatotype, we found larger values of the skinfold thickness under the lower angle of the scapula (only with mild course), on the abdomen and side, and also smaller values of the skinfold thickness on the posterior surface of the shoulder and only in representatives with severe psoriasis – on the anterior surface of the shoulder, chest and thigh. Between patients with different degrees of severity of dermatosis both without distribution, and with distribution on various somatotypes of reliable or tendencies of differences of skinfold thickness are not revealed. Thus, there are pronounced differences in most indicators of the skinfold thickness between healthy and patients with mild or severe psoriasis of Ukrainian men of the first mature age, both without distribution and with the division into different somatotypes.

Numerical Simulations of Novel Conning Designs for Future Super-Large Wind Turbines

In order to develop super-large wind turbines, new concepts, such as downwind load-alignment, are required. Additionally, segmented blade concepts are under investigation. As a simple example, the coned rotor needs be investigated. In this paper, different conning configurations, including special cones with three segments, are simulated and analyzed based on the DTU-10 MW reference rotor. It was found that the different force distributions of upwind and downwind coned configurations agreed well with the distributions of angle of attack, which were affected by the blade tip position and the cone angle. With the upstream coning of the blade tip, the blade sections suffered from stronger axial induction and a lower angle of attack. The downstream coning of the blade tip led to reverse variations. The cone angle determined the velocity and force projecting process from the axial to the normal direction, which also influenced the angle of attack and force, provided that correct inflow velocity decomposition occurred.

KINEMATIC PARAMETERS OF JUMP SHOT IN ELITE MALE BASKETBALL PLAYERS

The primary aim of this study was to determine kinematic parameters of jump shot in elite male basketball players, by analyzing the release time for shooting, the angle of entry, and ball spin and. The secondary aim of this study was to examine possible differences in these kinematic parameters among the players associated with their playing position. Eighteen male basketball players (7 guards, 8 forwards, 3 centers) from six Serbian senior teams were tested. 94Fifty basketball sensor was used to obtain the following kinematic parameters of jump shot). The highest average measured values of shot release time were found in centres (1.23±0.23 s) and the lowest in guards (1.07±0.28 s), although these differences were not statistically significant. Further, centres had a lower angle of entry (36.6±2.08°) than guards (40.54±4.76°) and forwards (42.05±3.77°). The highest value of backspin was obtained by forwards (130±11.91 rotations / min). There were no significant differences between guards, forwards and centers in any kinematic variables (p>.01). The relationship between the body height and angle of entry was not significant (p>0.05). In conclusion, compared to centers, guards and forwards showed similar results for the examined variables. This evidence seems to support the theory that compared to guards and forwards centres have the weaker shooting techniques. Coaches should encourage all players, especially centers, to shoot from all positions.

Índice de Lesões Osteomusculares e sua Correlação com Distúrbios Posturais em Cuidadores de Idosos

A má postura é um mau hábito e é de incidência mais alta em tarefas que demandem força associada ao movimento, onde os defeitos posturais têm origem no mau uso das capacidades funcionais do sistema musculoesquelético, onde entre as principais alterações posturais estão a escoliose, a hipercifose e a hiperlordose, além das lesões osteomusculares. O objetivo deste trabalho foi analisar a prevalência de sintomas osteomusculares e sua correlação com distúrbios posturais de cuidadores de idosos do município de Tabapuã (SP). Este estudo consiste em uma pesquisa transversal, quantitativa e sugestiva, em que foram observados cuidadores de diferentes faixas etárias e ambos os sexos; foram excluídos do estudo indivíduos com problemas neurofuncionais. Para a concretização do estudo, foram utilizados o Questionário Nórdico de Sintomas Osteomusculares que é um instrumento identificador de distúrbios osteomusculares nas diversas regiões anatômicas e a Biofotogrametria computadorizada (posturograma) onde se obtêm, através de fotografias, as distâncias entre pontos anatômicos para determinação de assimetrias, as quais são evidenciadas por emissão de um laudo técnico, baseado nas determinadas distâncias aferidas por uma escala métrica. Com os dados comparados e estabelecidos concluímos que a maior incidência é relatada na região lombar (40%), seguida de membros inferiores (35%), relativas considerações que todos possuem relatos de dores e relatos de alteração postural de escoliose, sejam essas mesuradas por ângulo de tales, ângulo inferior da escápula e acrômio. Index of Osteomuscular Lesions and Their Co-Relationship with Posture Disorders in Care-Givers of Elderly People ABSTRACT: An incorrect posture is a bad habit, with high occurrence in tasks that demand force and movement. Posture defects originate from incorrect use of the functional capacities of the muscle-skeleton system in which the main posture changes comprise scoliosis, hyperciphosis, hyperlordosis and osteomuscular lesions. Current paper analyzes the predominance of osteomuscular symptoms and their co-relationships with posture disturbances of caregivers of elderly people in Tabapuã SP Brazil. The transversal, quantitative and suggestive research included caregivers of several age brackets and of both genders; only caregivers with neurofunctional problems were excluded from the sample. The Nordic Questionnaire of Osteomuscular Symptoms, an identifying tool for osteomuscular disorders in several anatomic regions, and computerized biophotogrammetry (posturegram), were employed. The latter obtains the distances between anatomic points by means of photographs to determine asymmetries evidenced by a technical report based on determined distances measured by a metric scale. Data showed that the highest occurrence was reported at the lumbar region (40%), followed by the lower limbs (35%). All registered pain and reports on the postural alteration of scoliosis were measured by Thales´s angle, the lower angle from the scapula to the acromion.

Structural Properties of Cerium Substituted Yttrium Iron Garnet

The cerium-substituted yttrium-iron garnet (Ce-YIG) in CexY3–xFe5O12 is considered as a promising material for applications in high frequency wireless communication technology. In this work, we reported the structural properties of Ce-YIG. This material was produced via conventional solid state reaction (CSSR) with various molar ratio of cerium (x = 0.0, 0.1, 0.5, 1.0, and 1.5, respectively). A heat treatment was at a temperature of 1420 °C for 6 h after pre-fired at 1100 °C for 6 h. Multiple phases were presented in Ce-YIG ceramics. It was found, at x=1.5, the substitution of Ce into YIG has reached the solid solution limit. It was seen that, the peaks were shifted to the lower angle and proportional to the amount of Ce added. Thus, it can be concluded that, the substitution of Ce into YIG was successfully at x=0.1,0.5, and 1.0 respectively before reaching the solid solution limit at x=1.5.

Structure and Dielectric Tunability of Ba (Ti1-yZry)O3 Ferroelectric Ceramics

Barium zirconate titanate Ba(Ti1-yZry)O3 (BZT, y = 0.02, 0.07, 0.09, 0.12, 0.15) ceramics have been prepared by sol–gel process. All the BZTx ceramics exhibited perovskite phase detected by X-ray diffraction, and the diffraction peaks shift to lower angle with increasing the content of Zr. Dielectric susceptibilities are up to 15500, and tunability up to 74.9% under electric field 6.8 kV/cm at 100 Hz.

Upgrade Mechanoluminescence by Sr2+ Substitution in CaAl2Si2O8: Eu2+

Recently we demonstrated that CaAl2Si2O8: Eu2+ showed novel strong mechanoluminescence (ML). In order to improve the mechanoluminescence intensity, we partly substituted the Ca2+ ions by Sr2+ ions. It was found that the ML intensity was enhanced about three times as great as the one of CaAl2Si2O8: Eu2+ by substituting 40% of Ca2+ ions to Sr2+ ions. Furthermore it was revealed that the main peaks in XRD pattern shifted to lower angle side and the emission peak shifted to a short wavelength from 428 to 418 nm, indicating that the substitution resulted in the cell volume expansion and the change of luminescent color. Based on the results of thermoluminescence and electroluminescence measurements, the possible mechanisms for the improvement of ML intensity were proposed.

Formation of a pronival rampart on sub-Antarctic Marion Island

The formation of a pronival (protalus) rampart on sub-Antarctic Marion Island is investigated. Morphological attributes show debris at the angle of repose on the rampart's proximal slope and at a lower angle on the distal slope. Relative-age dating, based on the percentage moss cover and weathering rind thickness of the clastic component, indicates accumulation mainly on the proximal slope and rampart crest, implying upslope (retrogressive) accumulation. This contrasts with a previously published model for pronival ramparts, which proposes rampart growth by addition of material to the distal slope. Development of the Marion Island rampart is suggested to result from the control exerted by a relatively low-angled surface and a shrinking snowbed. A small debris step formed on the proximal slope appears to be a response to decreased snowfalls due to changing climate over the last c. 50 years. Growth rate of the rampart is considered to be variable during the Holocene in response to changes in climate and debris supply.