Round Bottom Research Articles

Estimating hydrodynamic performances of the designed leisure boats: a study considering hull shape and dimension variations

Abundant marine natural resources make Indonesia have potential in the field of marine tourism. Karimunjawa is one of the regions that still relies on marine tourism as the main sector in supporting the economy. Unfortunately, the existing modes of marine tourism transportation are dominated by traditional ships that have low performance, safety, and comfort. Therefore, infrastructure development is needed by developing a leisure boat design that has stability and good ship movement so that tourists are comfortable and safe on the trip. This study focuses on optimizing the hydrodynamic characteristics of leisure boats with variations in hull shape and hull dimensions adjusted to the characteristics of waters in Karimunjawa. The research was conducted by designing and analyzing 16 variations of hull models based on 5 reference ships. The regression approach is carried out on the dimensions of the reference ship to obtain variations in ship dimensions, then variations in hull shape include deep v, shallow v, flat bottom and round bottom. Each model variation is tested for resistance, stability, and seakeeping to determine the hydrodynamic performance of each model. Multi Attribute Decision Making (MADM) calculations are carried out afterwards to get the best tourist hull design. Then a sensitivity analysis was carried out on each variation to determine the influence of variations in dimensions and hull shape. The results showed the Deep V D model as the best model based on MADM calculations and hull shape variations had a significant influence on the hydrodynamic performance of the ship. It is hoped that this model can help the development of safe and comfortable tourist boats in accordance with the characteristics of the waters in Karimunjawa.

Rotary FoF1-ATP Synthase-Driven Flasklike Pentosan Colloidal Motors with ATP Synthesis and Storage.

We report the hierarchical assembly of a chloroplast-derived rotary FoF1-ATPase motor-propelled flasklike pentosan colloidal motor (FPCM) with the ability of the synthesis, storage, and triggered release of biological energy currency ATP. These streamlined and submicrometer-sized hollow flasklike pentosan colloidal motors are prepared by combining a soft-template-based hydrothermal polymerization with a vacuum infusion of chloroplast-derived proteoliposomes containing rotary FoF1-ATPase motors. The generation of proton motive force across the proteoliposomes by injecting an acidic buffer solution promotes the rotation of FoF1-ATPase motors to drive the self-propelled motion of FPCMs, accompanying the inner ATP synthesis and storage. These rotary FoF1-ATPase motor-powered FPCMs exhibit a chemotactic behavior by migrating from their neck opening to their round bottom along a proton gradient of the external environment (negative chemotaxis). Such rotary biomolecular motor-driven flasklike pentosan colloidal motors with ATP synthesis and on-demand release make them promising candidates for engineering novel intelligent nanocarriers to actively regulate cellular metabolism.

Abstract 4223: The dual immunestimulatory and immunesuppressive role of MRC5 fibroblast cells in 3D coculture with T cells and tumor cells

Abstract Introduction: Cancer-associated fibroblasts (CAFs) alter anti-tumor immune responses and modulate resistance to immune checkpoint inhibitors. The mechanisms of crosstalk between tumor cells, CAFs, and T cells remain not fully understood, and studying these multicellular interactions requires adoption of novel tools in preclinical research. Here, we established a spheroid co-culture model comprising of tumor cell lines, a fibroblast cell line, and primary human T cells, for studying the immunomodulatory effects of fibroblasts on T cell responses in vitro, in the context of immunotherapies. Methods: For setting up the 3D co-culture, A375 or OV-90 tumor cells were seeded alone or with MRC-5 fibroblasts in 96-well ultra-low attachment round bottom plates in complete growth medium supplemented with 1% Geltrex matrix. The cells were centrifuged, and spheroids were allowed to form for 24 hours. After spheroid initiation, activated T cells and treatments with anti-PD1 antibody or an immune stimulatory drug were added. Spheroid co-cultures were live imaged by Incucyte SX5 for 72 hours taking images every 4 hours, after which treatment responses were evaluated by flow cytometry and measuring IFN-γ accumulation with ELISA. Results: To mimic fibroblast and T cell interactions in tumor microenvironment we built and optimized an in vitro 3D co-culture assay using various tumor cell lines. With this assay we found that depending on the tumor cell interaction, fibroblasts MRC-5 cell line have either immune-suppressive or immune-promoting properties. IFN-γ secretion of T cells in the assay indicated that MRC-5 cells suppressed T cells when co-cultured with A375 cells, while with OV-90 cells T cells activation was enhanced. In addition to the IFN- γ secretion, T cells in MRC-5 OV-90 interaction significantly upregulated 4-1BB expression on both CD4 & CD8 T cells. Interestingly we noticed that MRC-5 fibroblasts could modulate T cell responses to anti-PD-1 treatment in the co-culture depending on the tumor cell used. Conclusion: Here, we established a spheroid co-culture model, which will allow studies of the immunomodulatory crosstalk occurring in tumor microenvironment. Our model revealed a bifunctional role of MRC-5 fibroblasts in altering T cell phenotype. This finding is in line with literature highlighting the ability of fibroblasts to act as either tumor promoters or tumor suppressors depending on tumor microenvironment. We believe that this model, would aid in elucidating mechanisms of interaction between CAFs and T cells, potentially leading to discoveries of novel targets for immuno-oncology drug development. Additional studies, such as gene expression analysis using single cell RNA sequencing, are warranted to further validated the model and to better understand the kinetics of these interaction occurring in the co-culture with various tumor cell lines. Citation Format: Ilona Arnkil, Can Hekim, Elli Narvi, Emmi-Leena Ihantola, Endrit Elbasani, Anil Thotakura. The dual immunestimulatory and immunesuppressive role of MRC5 fibroblast cells in 3D coculture with T cells and tumor cells [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 1 (Regular Abstracts); 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84(6_Suppl):Abstract nr 4223.

Characteristics of Fishing Vessels Owned by Fishermen from the Ujong Baroh Fish Landing Base (PPI) West Aceh Regency

Fishing vessel is one of an important thing among a fishing unit. All fishing activities are carried out on fishing vessel. In Indonesia, the shape and size of fishing vessels are vary, depending on the habits of the fishers and the area where the fishing vessels are built and operated. In West Aceh Regency, there are fishing vessels with various sizes. This study aims to identify the shape of fishing vessels measuring less than 10 gross tonnages (GT) at the Fish Landing Base (PPI) Ujong Baroh, West Aceh Regency. This identification is intended as a basis for reference in formulating fishing vessel design that follows the local wisdom of fishers in West Aceh Regency. This reference fishing vessel design can help the government and other parties provide aid fishing vessel for fishers in West Aceh Regency. The direct observation and measurement of fishing vessels were used in this research. Descriptive and numerical method used in analysis data. The number of sample was 27 fishing vessels consist of 10 sample with size of 1-5 GT and 17 with a size of 6-10 GT. The result show that fishing vessels in Aceh Barat District have a transom shape longitudinally and a round bottom or a round flat bottom shape transversely. All fishing vessels in West Aceh have a raked bow and a cruiser-shaped stern. The main dimensions ratio of group 6-10 GT is smaller than group 1-5 GT. The stability parameters of the two forms of fishing vessels follow the stability parameter values recommended by the International Maritime Organization (IMO). The static stability of fishing vessels with round flat bottom is better than round bottom.

Investigation of boiling heat transfer process in the barrel of a gravity heat pipe type extruder

Gravity heat pipe barrels produce gas films during the processing of thermoplastic materials, which affect the heat transfer, so there is an urgent need to study the nucleate boiling process and mechanism at different locations in the barrel. The results showed that the local heat flux at the vapor-liquid-solid three-phase contact was the largest, and different process conditions had different effects on the departure diameter and departure time of boiling bubbles. The tail vortex disturbance generated by bubble departure drives the merging and growth of bubbles to departure, which in turn improves the heat transfer. The rounded bottom of the barrel reduced the air film and increased the heat transfer efficiency compared to the horizontal bottom of the barrel. This study can deepen the understanding of the mechanism of bubble boiling heat exchange in gravity heat pipe-type barrels and provide theoretical support for more relevant application scenarios.

Development of a specific software for the calculation of open channels with uniform flow considering energy principles

The purpose of this research project is the codification of a specific software for the calculation of open channels of uniform flow considering the energy principles, which allows to obtain quickly and safely the normal and critical tie, geometric elements, flow rate, optimal hydraulic section of the sections proposed by Ven Te Chow, rectangular, trapezoidal, triangular, circular, parabolic, rectangular with rounded corners and triangular with rounded bottom, in addition to the geometric elements for any equation of the parabola, the hydraulic headroom and weirs. To verify the veracity of the developed program "SN CANALES v2.0", the results obtained were checked with the existing HCANALES software and manually; obtaining a margin of error of less than 1.5%, thus verifying that the values obtained by the software are reliable.

Automated high-throughput, high-content 3D imaging of intact pancreatic islets.

Diabetes poses a global health crisis affecting individuals across age groups and backgrounds, with a prevalence estimate of 700 million people worldwide by 2045. Current therapeutic strategies primarily rely on insulin therapy or hypoglycemic agents, which fail to address the root cause of the disease - the loss of pancreatic insulin-producing beta-cells. Therefore, bioassays that recapitulate intact islets are needed to enable drug discovery for beta-cell replenishment, protection from beta-cell loss, and islet-cell interactions. Standard cancer insulinoma beta-cell lines MIN6 and INS-1 have been used to interrogate beta-cell metabolic pathways and function but are not suitable for studying proliferative effects. Screening using primary human/rodent intact islets offers a higher level of physiological relevance to enhance diabetes drug discovery and development. However, the 3-dimensionality of intact islets have presented challenges in developing robust, high-throughput assays to detect beta-cell proliferative effects. Established methods rely on either dissociated islet cells plated in 2D monolayer cultures for imaging or reconstituted pseudo-islets formed in round bottom plates to achieve homogeneity. These approaches have significant limitations due to the islet cell dispersion process. To address these limitations, we have developed a robust, intact ex vivo pancreatic islet bioassay in 384-well format that is capable of detecting diabetes-relevant endpoints including beta-cell proliferation, chemoprotection, and islet spatial morphometrics.

Purse Seine Vessel Design under 100 GT Based on the Characteristics of South Sulawesi Waters in Indonesia

The waters of the Makassar Strait of South Sulawesi, where various Purse Seine vessels operate, have characteristics of very high biodiversity, the strength of very strong ocean currents, and the temperature and cultural characteristics of Bugisness and Makassar fishermen. It is necessary to design a purse seine ship that perfectly matches the designs of traditional ships operating in South Sulawesi waters so far. This research aims to create a purse seine vessel design under 100GT with International Maritime Organization standards that match the characteristics of the Makassar Strait. The Design Implementation Method is carried out by considering the length, width, height, shape of the ship's body, the volume of loading space, and construction weight by analyzing the main dimension ratio, hydrostatic parameter analysis and purse seine ship stability analysis. The design results were carried out using a length of 24 meters, width of 4.4 meters, and height of 1.9 meters. The shape of the purse seine vessel body is V-bottom shape, and the middle part towards the stern is U-V flat bottom. The tamping capacity of the first, Second and Third loading room size Volume is 29.48, 26.87 and 15.98 tons, respectively, and The Stowage factor fish is 0.5 tons/m. Ship stability or KG value to three conditions, namely the state of the ship heading to the fishing ground has a KG/VCG fluid value of 1.25 m, this value meets the IMO recommended standards, the second condition is the ship conducting fishing operations, the KG/VCG fluid value in the second condition is 1.22, and the third condition is the condition of the ship heading back to the fishing base, the KG/VCG value of 1.25 meters. The VCG/KG value of the three conditions has met the minimum value issued by IMO. The shape of the ship's body at the bow forms a "V-bottom" model, and at midship to stern has two forms of the ship's body, namely, a Round bottom and U-V flat bottom following the characteristics of South Sulawesi Waters.

Abstract 5362: AI-enabled novel workflow to evaluate T-cell activity in vitro using 3D spheroid models

Abstract T-cell therapies are designed to help our immune system eliminate cancer cells. Those include CAR T-cells (Chimeric Antigen Receptor engineered T-cells), tumor infiltrating lymphocytes (TIL), and other genetically modified T-cells. In recent years, the field of cell therapy has started to expand, including the launch of the first CAR T-cell therapies to treat blood cancer in 2017, which was a critical milestone in this field. Despite its boom, the discovery of novel immunotherapies that specifically enhance T-cell response against cancer cells remains a challenging task, limited by the absence of robust in vitro models to evaluate these immunotherapies throughout their development. The use of CAR T-cells on solid tumors has been lagging due to challenges that include tumor heterogeneity, immunosuppressive microenvironments, and the lack of unique tumor antigens that can be recognized by the CAR-T cells. As such, the ability to screen for CAR T-cells (e.g. with CRISPR) that effectively target and kill tumors is an area of active research. Here we describe a method for assessment of T-cell effect and penetration into the multi-cellular 3D tumor spheroids as a proof-of-concept model for in vitro CAR T assays. Spheroids were formed from Hela cell lines in 96-well round bottom plates. We activated the human peripheral blood mononuclear (PBMC) cells with PMA/ionomycin for 6 hours, then treated the spheroids with stimulated PBMC for 72 hours. Samples were imaged with a confocal imager every 2 hours for a 72 hour period. High-content imaging and analysis allowed us to observe and measure phenotypic changes in cancer spheroids and the process of T-cell penetration over a period of 72 hours. To optimize the workflow, we developed an image analysis approach that uses a deep learning-based segmentation model and a machine learning-based classification model to quantify the T-cell induced phenotypic changes in the spheroids using brightfield images. Our results show clear distinct phenotypic changes among different treatment groups and the feasibility of using AI-based analysis workflows to accurately predict the efficacy of T-cells in an in vitro assay. Moreover, the information associated with the penetration of T-cell into the 3D spheroids was explored by calculating the coordinates of the penetrated T-cells and T-cell movements from the nearest edge of the spheroids where the T-cell penetration speed was estimated. Our results show that the stimulated T-cells have much greater penetration speed compared to non-stimulated T-cells. Image analysis also allowed us to measure and quantitate the deterioration of cancer spheroids and changes in their morphology. Overall, our results show that the 3D spheroid models and the high-content analysis workflow may potentially be used as a metric to evaluate the efficacy of cell therapy in vitro. Citation Format: Zhisong Tong, Oksana Sirenko, Misha Bashkurov, Angeline Lim. AI-enabled novel workflow to evaluate T-cell activity in vitro using 3D spheroid models. [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 1 (Regular and Invited Abstracts); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(7_Suppl):Abstract nr 5362.

Analysis of the Sound Field Characteristics of a Muffler at Different Flow Conditions

To reduce the noise in a pump piping system and increase the usage time of equipment, a new type of porous muffler is proposed in this paper. A water guide cone is incorporated into the muffler structure, which may help to redirect the fluid media in the piping system. The porous structure is adapted from a muffler shell, water cone wall and round bottom plate. According to this structure, the muffler sample is made, and a pump pipeline system test bench is set up. The outlet noise of the pump pipeline system is measured after installing the muffler. At the same time, the muffler is numerically simulated by combining computational fluid mechanics and Lighthill acoustic theory. The characteristics of the flow field and external sound field under three different flow conditions of 200 m3/h, 400 m3/h and 600 m3/h are assessed. The numerical simulation results show the same dominant frequency and trend as the experimental results. The rationality of the numerical simulation is verified. Research shows that: the level of sound pressure at the muffler's outlet is lower than at the inlet, causing muffling, and the characteristics of a quadrupole sound source appear at the outlet. The proposed muffler has a certain effect in reducing noise in the pump pipeline system.

Итоги изучения керамики группы «джукетау» из булгарского городища Джукетау (Республика Татарстан, г. Чистополь)

Goals. The article aims to summarize some results of the research into Juketau-group ceramics from the medieval hillfort of Juketau (10th – 13th centuries CE). Results. Archaeological remains of the historically famous Bulgar-Tatar city of Juketau (‘Zhukotin’ according to Russian 10th – 14th century chronicles) are located on the left bank of the Kama River, on the western border of present-day Chistopol (Tatarstan). In the ceramic complex of the settlement, the share of dishes clustering with Juketau-group ceramics constitutes 65–70%. Morphological and technological analyses of this ceramic group have identified a number of distinct pottery production features, namely: the bulk of items examined are samples of handicraft pottery, though with certain archaic elements (round bottoms and individual forms of the ‘lip’ as a functional part of vessels, patching techniques, high concentration of tempers, use of ovens or bonfire devices for pottery firing). The skills of working with a potter’s wheel and a pottery kiln are characteristic of Juketau-group ceramic handicraft production. Conclusions. The study suggests the city of Juketau was a center of highly developed pottery production in the medieval state of Volga Bulgaria.

Turning/Shot peening of Nickel-based powder metallurgy superalloy: Effect on surface integrity and high-temperature low-cycle fatigue properties

In this study, a nickel-based powder metallurgy alloy was processed via turning, ceramic bead peening, and shot peening by high-intensity cast-iron shots and low-intensity ceramic beads (denoted as compound shot peening). We investigated the surface morphology (surface stress concentration factor, Kst), the surface residual stress profile, microstructure, and the hardness gradient of three surface states and compared the high-temperature low-cycle fatigue lives. The results showed that the surface stress concentration coefficients after turning, ceramic bead peening, and compound shot peening were 2.39, 1.98, and 2.12, respectively. The average surface roughness, Sa, after turning was low, but the bottom of the tool mark was sharp, so the Kst value was higher than that after shot peening, which formed a round bottom by bead blasting. Compared with ceramic bead peening, a surface structure with a deeper compressive residual stress profile and a higher hardness gradient was formed after compound shot peening, and nanostructured features appeared on the outermost surface. The estimated low-cycle fatigue lives after the ceramic bead peening and compound shot peening were 0.99 and 3.13 times longer than after the turning process respectively with strain amplitude 0.5% at 538℃. Moreover the gain of compound shot peening on low cycle fatigue performance gradually decreases with the increase of the strain amplitude.

Circumlocution

Circumlocution Brandon Krieg (bio) Vines circle all day seeking a propto hook and climb. Silkworms, their lead silk snipped by researchers,endlessly obsessively trace the round bottom of a jar. Maybe it’scruel, but here we are, saying: Close the loop with Finance, orGo back where you’re from! not I fear white spots popping up again on the scan, I fearpassing the green door will remind me of what was done there. Ants on a counterwill trace a line of pheromone until you smudge it, you sadistic fuck, laughing as they scatter inconfusion. Who above us laughs when gunfire from a high window pulls aparta tightly packed crowd like gauze? So much for the universal weave of balladand basket, ballot and arm-in-arm march. By the creek, idly, you pulled back loose bark from a log,little chest of knowledge, yours to open, and immediately wasps flew in to robthe rich cache of eggs frantic termites clambered to stash in lower tunnels. It’s like this:ribosome and covenant run on risk, advent or not of branch or post in the vine’stortuous radius, spiraling [End Page 33] of lines in ballpoint on a pagetermites or ants or humans will trace and trace as if planning to finally arrive. [End Page 34] Brandon Krieg Brandon Krieg is the author of Magnifier (Center for Literary Publishing, 2019), winner of the Colorado Prize for Poetry, and three other collections of poems. He teaches at Kutztown University and lives in Kutztown, PA. Copyright © 2022 University of Wisconsin Board of Regents

Усть-бельская керамика с эпонимного местонахождения из фондов Иркутского областного краеведческого музея им. Н. Н. Муравьева-Амурского

This article presents Ust-Belaya ceramics of the Ust-Belaya site from the funds of the Muravyov-Amursky Irkutsk Regional Museum of Local History. The multilayered site Ust-Belaya is located 110 km northwest of Irkutsk at the Belaya River mouth (left tributary of the Angara). The considered Ust-Belaya ceramics belongs to the finds from the excavations of 1958–1964. The collection includes 1331 fragments from at least 60 pots. The vessels have a simple closed, rarely open shape and a rounded bottom. The ornament could be located both the upper part of the vessel and cover it entirely. Vessels ornamented with horizontal straight lines predominate. In three cases they are complemented by zigzag lines. The rim on the outer side or on both sides is decorated with oblique impressions of a comb stamp, rarely smooth or other varieties of serrated tools. Almost all vessels in the rim area have a line of rounded pits. The main part of the ornamental composition is represented by lines of a receding scapula or rows of impressions of comb, larval and other types of toothed stamp (rarely smooth), which are set close, separately or using the technique of retreat. Signs of making, recorded on ceramics during the study, allow us to identify several features in the production of Ust-Belaya type ceramics. The vessels were formed by the method of zonal patchwork modeling, partially or almost completely on a base form, which could be another vessel. In the production of vessels, they were knocked out with a smooth mallet, achieving dense and thin walls. Upon completion of the modeling, a rim was formed using an additional structural element such as a conditional tape or funiculus. Then the vessel was ornamented, and the walls were smoothed or rubbed from the inside. Since the finds of 1958–1964 deposited in a mixed compression layer, which complicates dating. In 2017–2018 at the Ust-Belaya site, located on the middle floodplain, Ust-Belaya pottery was recorded in a clear stratigraphic position. Based on bones from the layer, dates were obtained with a range of 6730–6306 cal BP. Also, according to one Ust-Belaya vessel from other excavations of Ust-Belaya in 1957, a date was obtained from carbonized organic residues (foodcrusts) from the inner surface with a value of 6977–6800 cal BP. By analogy with these assemblages, the age of the collection of Ust- Belaya ceramics presented by us is tentatively determined in the range of 6977–6306 cal BP.

Миниатюрные изделия из глины именьковской культуры VI –VII вв. н.э.

The article deals with miniature clay products of the Imenkovo culture. They are often mentioned in publications of finds both from the Imenkovo hillforts and from the settlements. At the same time, they are not found in the Imenkovo burial grounds. The research was based on a representative collection of miniature items from the Tetyushy-II hillfort in the Tetyushy district of Tatarstan. In addition, published materials from excavations of other Imenkovo settlements both in the Republic of Tatarstan and in the neighboring regions — Ulyanovsk and Samara were used. The author studied 124 miniature objects. They were grouped into four divisions. The first one includes geometrical objects (balls, cones, etc.), accounting for 22.5% of all finds. The second includes jewelry (9.8%). The most numerous (42.7%) is the third section — household items. Most of them are miniature vessels. The last section includes miniature images of animals (25%). All products are made of pure clay. They are well burnt. Moreover, almost all of them are either broken or have the loss of individual parts. Since the crafts were very durable, it is obvious that they were smashed on purpose. By their functional purpose, they were: 1) cult objects related to production activities (miniature figurines of animals); 2) magic crafts; 3) elements of ritual procedures; 4) household items (for example, drinking bowls); 5) shells for weapons (sling). In the latter case, natural nodules were used for the same purpose. The origin of most of the miniature vessels is associated with the Volga region. In the decorations and a number of types of miniature vessels, the connection of these artifacts with the antiquities of the Dyakovo archaeological culture can be traced. There are analogies in the antiquities of the Kiev culture. Miniature vessels with a round bottom are associated with cultures of the 1st millennium AD in Southern Cis-Urals. Some of the items of this complex were formed under the influence of the Sarmatian culture. All considered items are dated to the 6th–7th centuries AD. Thus, for the first time, the systematization of miniature items of the Imenkovo culture, their attribution and dating has been carried out.

Hull Form Characteristics of Traditionally Fishing Vessel < 5 GT at Karangantu Archipelago Fishing Port

Karangantu Archipelago Fishing Port (PPN Karangantu) is one centre of fishery activity in Banten Province with various socio-cultural backgrounds of fishermen. One of the factors that influence the design characteristics (hull form) of fishing vessels is related to the socio-cultural community. Therefore, it is necessary to study the characteristics of the traditional ship design (<5GT) operating in PPN Karangantu. The research was conducted in August-October 2018 at PPN Karangantu. Data was collected using survey methods, field observations and interviews. The number of samples used as many as 25 units of fishing vessel with consideration of size, type of fishing gear, and ship design. Data analysis was carried out in a descriptive comparative method. The results showed that ships with a size of <5GT were a group of static gear and towed/dragged gear. There are two transversely hull forms, namely U bottom and round bottom. As for the longitudinally hull shape, it consists of a transom shape (type A and type B) and double pointed.

Design Characteristic of Static Fishing Boat on Sunda Strait

Fishing vessels operating static fishing gear in the Sunda Strait and based at the Coastal Fishing Port (PPP) Labuan are dominated by gillnets and hook and line. Even though they use the same operating method, the boat designs used can be different. This study aims to determine the characteristics of the static fishing boat that operating in the Sunda Strait. Data collection was conducted in October-December 2008 around PPP Labuan using a laser distance meter. The ships that were sampled were 8 units of gillnet boat and 5 units of hook and line fishing boats. The results showed that the ratio of the main dimensions of the static fishing boat in the Sunda Strait was still by the reference value with the overall shape of the bow is rake bow. The hull shape of the gillnet fishing boat consists of a u-bottom and a round flat bottom, while the hook and line fishing boat is entirely u-bottom. The design of the static fishing vessel in the Sunda Strait is following the basic needs of the static gear fleet, which prioritizes high stability and a large work area compared to the speed of the ship.

Takotsubo Cardiomyopathy and Myocardial Perfusion Image: Unusual Binomial in the Investigation of Acute Coronary Syndrome without Obstructive Lesions

Introduction Takotsubo cardiomyopathy (TC), also known as broken heart syndrome or stress-induced cardiomyopathy, was primarily described in Japan in 1990, is named after its morphological similarity to the vase used by Asian people to catch octopuses, which has a rounded bottom and a narrow bottleneck. This condition is characterized by transient left ventricular (LV) systolic dysfunction, commonly preceded by physical or emotional stress, mimicking the presentation of acute myocardial infarction. In the present article, we describe a case of TC [...]

İSLAM’DA KEŞKÜL-Ü FUKARA KÜLTÜRÜ VE SERAMİK KEŞKÜLLER ÜZERİNE İKONOGRAFİK BİR DEĞERLENDİRME

Bowl is one of the significant objects of Sufism along with beads, axe, staff, grains, belt, submission stone, starboard and folder (cilbend), banner and folder. Begging bowls-pots used by various orders such as Rufaî, Kalenderî, Mevlevî, Bektaşî, Ni’metullâhiyye, Safeviyye dervishes and Rum Abdalları for eradicating contempt are called “Keşkül”. It is known that the tradition of begging with bowl originated in India. While begging is considered as a profession in India, it is not accepted as a means of livelihood in Islamic communities and it was even not welcome. However, begging constitutes an important step that real dervishes must take on the path towards Sufism. Various materials were used for making beggar’s bowl such as coconuts, minerals, wood, glass and ceramic. In this research, an iconographic review was conducted on beggar’s bowl culture and ceramic bowls in Islam. Bowls have pulled out, withdrawn and straight mouth form, round and ring bottoms, gibbous and spherical shaped bodies. Samples with gibbous body have two handles and those with spherical body have three handles. All of the samples examined are glazed and sub-glazing coloured painting decoration technique is used in their ornaments. Herbal, geometric, figurative ornaments and writings stand out on the bodies of the bowls. The iconographic meanings that the ornaments on reviewed samples are parallel to the intended use of the bowls. Reviewed samples are dated to 17th and 19th centuries. Our aim is to introduce these ceramic bowls that feature motives and iconographic matters besides functionality – which have a significant place in the lodge art – and the importance of bows in begging culture among Islamic orders to the scientific world

Design Appropriateness of Boat Lift Net Based on Archipelagic Fishing Port of Karangantu

Boat lift net fishing fleets in Archipelagic Fishing Port of Karangantu were built traditionally and does not have design drawings. The boats are doing its fishing activities as usual although hadn’t preliminary design. This research aims at analyzing the design appropriateness of boat lift net compliment to the static gear vessel in Indonesia. The survey method with purposive sampling is applied in the research. The research is done in Archipelagic Fishing Port of Karangantu on July until October 2019 with identification the compartments of the boat and direct measurements of the boat. The result shows that the main dimensions ratio and coefficient of fineness of boat lift net has been appropriate as static gear vessel for fishing activities. The hull form of the boats are round bottom and U-bottom. The stern of boats is flying deck added-transom, and using V-type raked bow.