bluuebunny/crossref_metadata_2025 huggingface dataset:
Body Weight, Physiological Status and Volatile Fatty Acid on Kacang and Etawah Crossbreed Goat by Reduction and Refeeding of Feed Quantity
Authors: Suwignyo Bambang , Panjono Panjono , Aryanto Aryanto , Sarmin Sarmin , Widiyono Irkham
Published: November 2022

The aimed of this study was to observe the effect of feed restriction and refeeding on body weight, physiological status and blood VFA on Kacang and Etawah Crossbreed Goat. Eight male goats consisting of 4 Kacang Goats and 4 Etawah Crossbred goats were used as experiment objects in this study. Both types of goats were subjected to the same treatment (three phases). First was adaptation, feed was given gradualy until reach the intended amount. Secondly, the feed was reduced by giving as much as 1.7% dry matter of body weight for each; thirdly, both goats were fed on ad libitum (refeeding phase). The variables observed were body weight changes, physiological status and blood VFA. The data obtained were analyzed by Various Random Test using Completely Randomized Design (RAL) on 2x2 factorial patterns. Duncan Multiple Range Test was used to test treatments that significantly different. The results showed that the pattern of changes in body weight on both goats breeds were relatively similar. Physiological status (pulse, rectal and respiratory temperature) on both breed of goats were not significantly different. However, decrease in the amount of feed impacted in the decrease in body temperature, pulsus and respiration, although it was still within normal range. The same also happened on blood VFA levels. Based on the results of the study, it can be concluded that breed differences breed of goat did not affect the physiological condition of goat. Differences in the amount of feed affect the physiological conditions and the performance of goat production.
Evaluasi Daya Tahan Hidup Spermatozoa Kambing Peranakan Etawah dalam Beberapa Pengencer Sederhana
Authors: Siregar Tongku Nizwan , . Hamdan
Published: November 2022

.
THE EVIDENCE OF VIRUS-LIKE PARTICLES IN CRABS (Scylla sp.) ISOLATED FROM INSIDEAND OUTSIDE POND SHRIMP INFECTED WITH WHITE SPOT DISEASE
Authors: Supraptp Hari
Published: November 2022

The crabs (Scylla sp.) were investigated for the contamination of Whitespot Baculovirus (WSBV) due to they lived inside and outside pond when the disease outbreak. The 6 samples of crabs, all of them were contaminated by WSBV with the founding of virus-like particles in hyperthrophied nuclei and cytoplasm. The size of virus-like particles is 65 ± 10 nm in diameter and 145 + 10 rim in length. We suggest that crabs has a big role in the transmitting the disease in pond an acting as a host for some crustacean virus. Key words : Crabs, Scylla sp., Whitespot Baculovirus
Morfometri, Morfologi Serta Abnormalitas Spermatozoa Owa Jawa (Hylobates moloch) Asal Ejakulat
Authors: Astuti Pudji , Yusuf Tuty Laswardi , Sajuthi Dondin , Hayes Eric , Budipitojo Teguh , Sjahfirji Luthfiralda , Maheshwari Hera
Published: November 2022

.
Profil Kimia Darah Darah Elang Jawa (Spizaetus Bartelsi) dan Elang Bido (Spilornis Cheela)
Authors: Santosa Edi Boedi
Published: November 2022

.
Analisis Homologi Sekuen Fragmen Genom Eimeria tenella Isolat Jepang, Jogja dan Solo
Authors: . Sumartono
Published: November 2022

.
Pengujian Daya Tahan Spermatozoa Semen Beku Kambing dan Domba setelah Thawing
Authors: Gustari Sri
Published: November 2022

.
PENGARUH PEMBERIAN PB ASETAT TERHADAP KADAR KALSIUM,MAGNESIUM DAN AKTIVITAS KOLINESTERASE SERUM BURUNG MERPATI (Columbia livia)
Authors: Santosa Edi Boed , Hariono Bambang , Mangkoewidjojo Soesanto
Published: November 2022

.
Cytotoxicity Study of Red Fruit Extract (Pandanus conoideus Lam) as Anti-Goitrogenic Herbal Medicine in Sprague Dawley Rats
Authors: Wuryastuty Hastari , Wasito R.
Published: November 2022

The use of herbal medicine (phytopharmaca) has increased manifold because of the safety. Red fruit extract is one of the supplements that has many advantages for health. The efficacy of pre-clinical trial using the rats  induced by iodine deficient ration has proven that 1-2 ml of red fruit extract supplementation with/without KIO3 fortification for 30, 60 and 90 days has potency as anti-goitrogenic herbal medicine. For standarization, however, the extract red fruit has to be tested for the safety in the important organs like livers and kidneys. The research results have  proven that in the normal Sprague Dawley rats, supplementation of 2 ml/day/rat of red fruit extract for 135 consecutive days has.no toxic effect in the livers and kidneys. In hyperplastic goiter Sprague Dawley rats induced by goitrogenic ration, the red fruit extract supplementation has to be in a combination with KIO3 to overcome iodine deficiency disorders and has no-toxic effect to the livers. Therefore, it can be concluded that based on pre-clinical studies using Sprague Dawley rats, the red fruit extract can be categorized as standardized anti-goitrogenic herbal medicine.
Total Plate Count of Milk from Dairy Cooperatives in Yogyakarta and East Java
Authors: Septiani Monica , Drastini Yatri
Published: November 2022

Most of the local populations in Indonesia, especially in Sleman, Yogyakarta and Tulungagung, East Java consume cow milk. Cow milk is more widely consumed than that of horse or goat because of the people  habit and the raw milk is more easily found in the market. The majority of people consume milk without knowing the number of bacteria contained and neither the presence nor absence of harmful bacteria in the milk consumed. This study aimed to identify the total number of bacteria in several dairy cooperatives in Sleman, Yogyakarta and Tulungagung, East Java. Milk samples were taken from two tanks in Koperasi Sarono Makmur (KSM), three tanks (were taken four times, once a week) in Koperasi Warga Mulya (KWM) Sleman, Yogyakarta, and two tanks (twice in the morning and once in the evening) in Koperasi Unit Tani Ternak (KUTT) Tulungagung, East Java. Milk from each tank were taken 500 mL and put into the cooler that was given ice cubes. Then the samples to be tested for total bacteria from each tank with plate count agar medium. The number of samples was 19. Milk samples were statistically analyzed with one way ANOVA. The results showed that the total number of bacteria of milk of KSM is 1.0 x 106 CFU/mL, KWM 3.6 x 106 CFU/mL, whereas cow's milk KUTT 4.0 x 106 CFU/mL. The average total number of bacteria of KWM and KUTT exceeds the requirements of the Indonesian National Standard (SNI) 01-3141-1998 (1,0 x 106 CFU/mL).
A Study of the Fruit Bat (Rousettus sp) Brain Anatomy as Natural Reservoir Wild Animal for the Rabies Virus
Authors: Sari Karina Mayang , Khomariyah Siti , Arofah Nur , Wardhani Sabrina Wahyu , Pangestiningsih Tri Wahyu
Published: November 2022

Rousettus sp. (Fruit bat) is one type of fruit bats in Indonesia and act as a natural reservoir of rabies. Rabies is caused by a virus from genus Lyssavirus, family Rhabdoviridae, which attack central nervous system (CNS).The brain is an organ that is sensitive to rabies infection. The purpose of this study was to determine the anatomical structure of the fruit bat brain macroscopically. Five fruit bat were used in this study, they were anaesthetized using ketamine and xylazin. Animals were perfused using physiological saline and 10% buffered formalin. Brains were taken using tweezers after all the bones of the skull were separated. Analysis of macroscopic brain was done descriptively. The results showed that the fruit bat brain were generally divided into cerebrum, cerebellum and brain stem. Gyrus, sulcus and the paraflokulus lobes of the fruit bat brain were less developed than that of the dogs brain.
Gastrointestinal Endoparasites Diversity of Macaca fascicularis in Goa Monyet Tenau Garden, Kupang
Authors: Oka Wirawan I Gusti Komang , Kusumaningrum Damai , Oematan Aven Bernard
Published: November 2022

Goa Monyet Tenau Garden is one of the tourist parks located in Kupang East Nusa Tenggara Province. The population of long-tailed macaque (Macaca fascicularis) is about 142 in the region, while outside the region is 162. This study was aimed to determine the types of gastrointestinal endoparasites that infect monkeys which live inside and outside the region, and to study if there is a relationship between different regions with percentageof gastrointestinal endoparasites that infect monkeys as well. Specific target was to obtain data on the diversity of endoparasites in the tourist park. Macaca fascicularis fecal sampling was done randomly from inside and outside the region. Thirty fecal samples were taken which composed of 15 samples from the region and 15 samples from outside the region. The weight of each fecal sample is ± 10 gr. Each fecal sample was inserted into the pot(capacity ± 25 ml) and labeled by the place, date and month of collection. The samples were given 10% formalin as a preservative. Examinations were conducted at the Animal Health Laboratory Politani Kupang, using 2 methods : Centrifuge and Sedimentation method. Diversity and percentage of worm infection in monkeys between different regions were analyzed descriptively. The results showed that the types of endoparasitesinfecting monkeys inside and outside of the region were the same (Eimeria sp., Ancylostoma sp., and Strongyloides sp.). This was caused by the interaction of the use of the same region. Percentage average of endoparasitic infection that infects monkeys in the region was higher than that of outside the region (In the region: Eimeria sp./ 86.7%, Ancylostoma sp./ 73.3% and Strongyloides sp./66.7%, outside the region: Eimeriasp./ 80%, Ancylostoma sp./60%, Strongyloides sp./46.7%. The difference percentages of infection were influenced by several factors, such as vegetation, water sources, sanitation, season, temperature and population.
Cloning of the gene encoding Endo-β-1,3-1,4 Glucanase from Bacillus subtilis subsp. spizizenii W23 on Plasmid pMMB67EH into Escherichia coli DH5α and Escherichia coli Origami
Authors: Gunawan Lisa
Published: November 2022

One of the genes encoding cellulolytic enzymes, named BSUW23_10175, from Bacillus subtilis subsp. spizizenii W23 was cloned in the plasmid pMMB67EH into Escherichia coli DH5α and Escherichia coli Origami. Target gene was amplified using polymerase chain reaction (PCR) with specific primers (For- BSUW23_10175 dan Rev-BSUW23_10175) that were used for BSUW23_10175 gene amplification. Based on the PCR and restriction analyses of the transformants plasmid, it was known that clones number 8 and 9 of the Escherichia coli Origami transformants contained the recombinant plasmid pMMB_BSUW23_10175.Cellulolytic activity assay showed that those transformants had cellulolytic activity by indution with IPTG (isopropyl-β-D-thio-galactosidase).
THE EFFICACY OF DORAMECTIN FOR TREATMENT OF Ancylostomiasis IN DOGS
Authors: Tjahajati Ida
Published: November 2022

A study was done to evaluate the efficacy of doramectin injection for Ancylostomiasis treatment in 10 dogs. All of the dogs were heavily and naturally infected with Ancylostoma Sp. the heavy infection criterion (25 egg per gram) was based on the flotation method. At the beginning of the study the dogs were injected doramection subcutaneously (200 ,wg/kg of body weight). The pathogenesis of the disease was observd through the clinical sign and feses examination during 2 weeks after treatment. Dogs were considered recovery when they have a good response to the treatment and clinically showed normal of apetite, no sign of diarrhea and no egg was found laboratorically. Results of the study showed that all of the dogs had positive response to the treatment and therefore it can be concluded that doramectin effective against Ancylostoma Sp. in dogs.
A DISTRIBUTION AND AN IDENTIFICATION OF Culicoides SPECIES (Diptera: Ceratopogonidae) IN BOGOR
Authors: Sahara Ana , Malole Malole , Koesharto Koesharto , Sendow Sendow , Sukarsih Sukarsih
Published: November 2022

A distribution and an identification of Culicoides species collected around the cattle farm have been investigated. The purpose of the research is to know the distribution and the species of Culicoides that might be a relevance to bluetongue virus tranmission. A number of 2117Culicoides (Diptera. Ceratopogonedae) was collected from around the castle farm in Depok dan Cibungbulang Bogor municipality. The collection was carried out by pirbright type miniatur light trap. The identification of species of Culicoides was based on the morphological character of the insect according to Wirth and Hubert. The result showed that the number of Culicoides was found in Depok region more than in Cibungbulang. There were 14 species identified from the two region. In Depok, the specieses of Culicoides were dominated by C. parahumeralis Wirth & Hubert, C. actoni Smith, C. oxystoma KiefFer and C. peregrinus Kiefier; whereas in Cibungbulang, they were dominated by C. parahumeralis, C. orientalis Macfiei, C. peregrinus and C oxystoma. The species suspected in their role of bluetongue transmission are C. actoni, C. peregrinus, C.oxystoma and C. orientalis.
THE EFFECT OF PANHISTERECTOMIZED AND HIGH PHOSPHORUS INTAKES ON CALCIUM AND PHOSPHATE ANORGANIC CONCENTRATION IN THE BLOOD, AND THE BONE CHANGES IN RATS
Authors: Hartiningsih Hartiningsih
Published: November 2022

Estrogen is an inhibitor of bone resorption. Although there is some disagreement, most studies indicated that bone loss is accelarated at the time of menopause wether it is induced surgically or naturally. When the condition men­tioned above is supported by imbalance diet, especially calcium to phosphor ratio, the bone loss will be acce­larated. The obyectlves of the research were to study the effect of panhisterectomized and high phosphorous intake on calcium and phosphate anorganic concentration in the blood, and bone changes in rats.Sixteen female of rats ± 30 days of age were randomly divided into four groups (A, B. C, and DJ of four each. The group A and C were unpanhisterectomized. Whereas the group B and D were panhisterectomized. The group A and B were fed diet contain Ca:P ratio = 1.5:1, whereas the ratio of calci­um and phosphorus 1.5:6 was given to group C and D. At the end of the experiment, the blood samples were taken directly from eye (plexus retroorbitalis) for calcium and phosphate analysis. The left femur were taken for histopathological analysis.From the results can be concluded that the diet con­taining the Ca:P in variation ratio, panhistcrectomized. and interaction between two of them had significant effect on the blood inorganic phosphate (P < 0,01). The diet contain­ing CaiP = 1.5:6 for unpahisterectomized caused earliest lesion of osteodistrphia fibrosa, whereas for panhisterec-tomized caused mild osteodistrophia fibrosa.
HISTOPATHOLOGICAL CHANGES OF SCHISTOSOMIASIS FROM NAPU VALLEY, CENTRAL SULAWESI, 1NDONESIA
Authors: Kurniasih Kurniasih
Published: November 2022

Schistosomiasis is an endemic disease caused by the infection Schistosoma Japonicum (Trematoda), can attack human and animals surrounding Lindu lake and Napu valley. Central Sulawesi, Indonesia. Five mice were naturally infected through subcuian with 75 cercariae of Schistosoma japonicum emerged from snail, Oncomelanic hupensis lindoensis, which were found in the Napu valley, Central Sulawesi. Mice showed a weakness, anorrhexia, stomach ache,and died in the fifth, sixth and seventh week posiinfection. At autopsy, mice had ascites, yellowish nodules on the surface of lung, liver, serosa of the small intestine, and mesenterium. Histolagically, there were severe necrosis and the granolomatous inflammation of the liver, the spleen, the lung, the pancreas, and the small intestine.
INTRA-UTERIN ADMINISTRATION OF PROSTAGLANDIN FOR INDUCTION IN CROSS BREEDING GOATS
Authors: Gustari Sri , Kusumawati Asmarani , Subagyo Slamet , Putro Prabowo P
Published: November 2022

Productivity and reproductivity of cross breeding goats is low. It is mainly caused by hormone deficiency and difficulties in estrus detection. The research studied the effect of intrauterine administration of prostagiandin on estrus induction and on number of pregnancies.Sixteen does were divided randomly into 2 groups. Group i were injected with prostagiandin intramuscularly. Group li were given prostagiandin by intrauterine administration. In both groups, prostagiandin were given twice with interval 11 days apart. The does which coming into estrus were mated naturally.There was a significantly different in the time of estrus between group I and group II (40.25 ± 4.94 and 80.8 ± 18.35 hours). On the other hand, there was no difference in estrus induction between those two groups (Group I : 87.5% and Group II : 62.5 %). All the does which were mated naturally were pregnant (100%). Although time to estrus after intrauterine administration of prostagfandin was longer than that of intramuscular ones, but it was a cheaper method.
AN EFFORT IN CONTROLLING MYCOPLASMOSIS IN BROILER USING THE THIRD GENERATION OF QUINOLONE ANTIBIOTIC IN FIELD CONDITION
Authors: Darjono Darjono
Published: November 2022

A total of 2251 broilers treated with 20 mg/kg body weight enrofloxacin and 1947 broilers treated with 20 mg/kg body weight ofloxacin plus 2260 broilers treated whith 125 mg/kg body weight chlortetracyclin were allocated in an experiment lo evaluate the effectiveness of the third generation quinolone in controlling mykoplasmosis in field.Result of this experiment demonstrated that These group nf antibiotics could produced lower mortality altogether with the culling rate and higher market weight compared to those treated with chlortetracyclin (P < 0.0 1). Although, treatment of mycoplasmosis in field using antibiotics in this group did not completely eliminate the clinical signs and patological changes as compared to the experiments done in the laboratory. Economical evaluation indicated that usage of These groups of antibiotics for broilers was more beneficial than chlortetracyclin.
The Visual Perception of Residential Buildings: Le Corbusier’s Modernism and Zaha Hadid’s Parametric Architecture
Authors: Mujahed Layla
Published: November 2022

Abstract: This research paper studies visual perception by focusing on the material functionality of residential buildings in the different architectural style periods, which are the modernism and parametric styles periods. Two pioneer architects of these architectural style periods were selected to study and focus study on their works, Le Corbusier, a pioneer architect of the modernism architectural style period, and Zaha Hadid, a pioneer architect of the Parametric architectural style period. This research uses a mixed-methods approach including quantitative and qualitative approaches, represented by a survey directed at architects to study and analyze the visual perception of the selected architects’ building designs. Besides, this research studies the material functionality of each selected case study. The results showed that the residential buildings designed during the modernist architectural style period by Le Corbusier were characterized by simplicity, comfortability, and regularity. However, the residential buildings of the parametric design style period designed by Zaha Hadid were characterized by complexity, uncomfortability, and irregularity but meaningful.
High-Speed Hybrid Logic Full Adder Using High-Performance 10-T XOR-XNOR Cell Using 18-nm FinFET Technology
Authors: Indrani Ms. K S , Sucharitha Nadendla , Praneeth D N S S R V , Yogesh Bojja Veera Sai
Published: November 2022

Abstract: The Portable electronic gadgets have turned into a major part of life. Electronic gadgets predominantly consist of arithmetic units. A full adder is an important part of arithmetic units like multipliers. In order to enhance the rate and efficiency of such systems, it is worthwhile to design a FA that has higher rates of speed and low consumption of power. A Full adder circuit is frequently implemented using a hybrid logic approach. This work proposes a 10T XOR-XNOR circuit which shows improved delay performance. The suggested circuit's performance is determined by modeling that circuit in a virtuoso platform powered by cadence by using 18-nm FinFET technology. Additionally, here four distinct designs of a full adder are presented by making use of the proposed XOR-XNOR circuit and the available sum and carry modules. These circuits show an improved PDP when simulated using FinFET technology than CMOS technology.
Architecture of Cocoa Genotypes in Colombia as Affected by Bud Type, Grafting Technique, and Pruning
Authors: Lozano Tovar Maria Denis , Guzman Jose Arboney , Ramirez Luis Enrique , Garcia Jairo
Published: November 2022

Organization of plant aerial parts and root distribution, environmental conditions such as light, temperature, humidity and agronomic practices (grafting and pruning) influences the final architecture of the plant. Most of cocoa plantations in Colombia belong to the plagiotropic type that emit branches and suckers in a disorderly way, which leads to an unbalanced development, this makes it difficult to manage. To search for cocoa plants with better architecture, we evaluated the effect of the type of the bud (orthotropic and plagiotropic), the grafting techniques (approximation and patch grafting) and pruning (structural and conventional) on ICS 95 and CCN 51 clones. The monitoring was carried out at an open greenhouse and field. Plants obtained from orthotropic buds and approximation grafting had lower bifurcation angles, 42% more leaves and 50% more branches. The structural pruning had a positive influence on the architectural variables, which presenteda higher conversion (8.68%) of fresh weight of cocoa pod into dry weight of cocoa beans, meanwhile CCN 51 trees showed a higher conversion (9.76%) compared to ICS 95 (7.34%). CCN 51 had the highest bean index (1.30) and the lowest pod index (22.0). This study demonstrated that structural pruning improved bean indexand pod index. We concluded that for CCN 51 by approximation grafting technique is a good alternative for a tropical dry forest, as its production between 1995 and 2277 kg of dry cocoa beans ha-1 year-1.
Stability of the Y–Ti–O oxides in reactor materials under neutron irradiation at high temperatures
Authors: Frolov A. S. , Kuleshova E. A. , Gurovich B. A. , Nikitina A. A. , Maltsev D. A. , Fedotova S. V. , Safonov D. V.
Published: November 2022

The paper presents the results of electron microscopic studies of ferrite-martensitic steel samples hardened with Y-O oxides, EP-450 DUO in the initial state and after neutron irradiation in the BN-600 reactor at 1000°C to a damaging dose of 77.5 dpa. These studies showed that the main types of oxide phases were Y2(Si, Ti)2O7 and Y2(Si, Ti)O5. These precipitates at sizes less than 10-20 nm were semi-coherent with a ferritic matrix of steel EP-450 DUO with the ratio (110)malrix//(221)palticle. Some of the Y-Ti-O oxides in the initial state were Y2Ti2O7-type with some deviations from the stoichiometric composition.

However, after neutron irradiation under BN-600 conditions at temperature ~ 1000°C, oxide particles could not be described by the indicated stoichiometry. Besides, after irradiation, silicon and aluminum were found in the oxide's composition. In the case of taking these elements into account during the construction of a triple composition diagram, it was shown that the oxide phases had Y2(Ti, Si, Al)2O7 and Y2(Ti, Si, Al)O5 types. It was established that in samples of EP-450 DUO steel in the initial state with oxide particles up to 20 nm in size, the yttrium content is generally lower than the titanium concentration. The titanium and yttrium concentrations corresponded to the stoichiometric composition Y2Ti2O7 (1:1) with a further increase in the average diameter of these phases. After irradiation, the situation changed somewhat: the yttrium content in most oxide phases exceeds the total concentration of titanium, silicon, and aluminum.

The paper also presents the analysis of porosity and evolution of grain structure in EP-450 DUO steel after neutron irradiation.
Physical and mechanical properties of composites low density polyethylene/polybutylene terephthalate/compatibilizer
Authors: Borukaev T. A. , Kitieva L. I.
Published: November 2022

Polymer composites based on low-density polyethylene and polybutylene terephthalate have been obtained. It has been established that the use of a compatibilizer makes it possible to improve the compatibility of initial thermodynamically incompatible polymers. It is shown that polymer composites containing a compatibilizer are superior in their physical and mechanical characteristics to the original polymers and mixtures based on them.
On the fatigue strength calculation of the welded shell structures from high-strength steels under low-cycle loading. Part 2: Development of the assessment methodology
Authors: Ilyin A. V. , Sadkin K. E. , Zabavichev N. S.
Published: November 2022

The first part of this work substantiates the procedure for estimating the number of cycles before the appearance of a detectable fatigue crack in weld joints (stress concentrators) which are the usual places of crack occurrence in the absence of major technological defects. It is based on a physical model of the initial stage of fatigue failure, generalized data on the fatigue failure resistance of high-strength steels and their welded joints and FEM calculations. It is reduced to interpolation formulas summarizing the results of numerical modeling. This (second) part of the study presents information necessary to perform practical assessment of fatigue strength in the field of low-cycle loading, including the choice of reserve coefficients when calculating the resource of welded structures. The results of the assessments are compared with the data obtained during fatigue tests of welded joints of large thicknesses performed by multi-pass welding.
Fracture properties and mechanisms for irradiated austenitic steels over high temperature range and formulation of fracture criterion. Part 1. Experimental results
Authors: Margolin B. Z. , Sorokin A. A. , Buchatsky A. A. , Shvetsova V. A. , Prokoshev O. Yu. , Pirogova N. E.
Published: November 2022

The experimental study results of the fracture properties and mechanisms are represented over temperature range from 200 up to 600°С for austenitic 304 steel (18Cr–9Ni steel) in the following conditions: (1) after neutron irradiation at temperature of 400°С up to damage dose of 30 dpa; (2) after neutron irradiation and subsequent aging at 550°С for 3000 hours. The fracture properties and mechanisms are determined under uniaxial tension of standard smooth cylindrical specimens and notched cylindrical specimens, i.e. for various stress triaxialities. Sharp decrease in the fracture strain and transition to intergranular fracture are revealed over high temperature range forstandard smooth cylindrical specimens. Over the same temperature range the fracture strain is larger for notched cylindrical specimens than for smooth cylindrical specimens, moreover a portion of intergranular fracture is also larger. This finding is rather abnormal as the fracture strain usually decreases when stress triaxiality and intergranular fracture portion increase. The obtained results are used for formulation of fracture criterion and elaboration of fracture model for high temperature radiation embrittlement that is considered in the second part of the paper.
Fracture properties and mechanisms for irradiated austenitic steels over high temperature range and formulation of fracture criterion. Part 2. Fracture criterion and model
Authors: Margolin B. Z. , Sorokin A. A. , Buchatsky A. A. , Shvetsova V. A. , Fomenko V. N. , Pirogova N. E.
Published: November 2022

On the basis of experimental data considered in the first part of the paper the fracture criterion and fracture model are represented for high temperature radiation embrittlement of irradiated austenitic steels. The proposed model allows one to explain larger value of the fracture strain for notched cylindrical specimens as compared with smooth specimens as it has been found in the first part of the paper and also to predict fracture toughness over range of high temperature radiation embrittlement. The formulated criterion and model are verified by comparison of the calculated and experimental values of fracture toughness for 18Cr-9Ni steel irradiated up to damage dose of (24–30) dpa. Experimental values of fracture toughness are obtained from compact tension CT-0.5 specimens tested at 200°С and 600°С. The fracture toughness data for irradiated steel are represented also over temperature range from 20°С and 600°С.
Results of studying the profile of single tracks of coatings produced from aluminum and nickel-based powders
Authors: Oryshchenko A. S. , Gerashchenkov D. A.
Published: November 2022

The profiles of individual tracks were experimentally studied considering the powder flow rate, nozzle speed and temperature when creating a coating from a monometallic aluminum powder, a mixture of two monometallic powders of the aluminum-nickel and nickel-titanium systems, as well as composite powder from a mixture of monometallic powder of aluminum and corundum. Aluminum and nickel powders were chosen as the investigated ones, since they are the basis for most functional coatings. The dependence of the track profile on the scanning speed is established, the step between the tracks is determined, which ensures uniform coverage.
Influence of thermal moisture impact on the structure and properties of polyimide carbon fiber
Authors: Valueva M. I. , Zelenina I. V. , Nacharkina A. V. , Lonsky S. L.
Published: November 2022

The article studies influence of laboratory-simulated external influencing operational factors – water and moisture saturation, combined effect of elevated temperature and humidity, exposure in a tropical climate chamber on the properties of high-temperature carbon fiber based on a melted thermosetting polyimide binder. Studies of the structure, glass transition temperature and elastic-strength characteristics of carbon fiber after exposure were carried out, the change in the mass of carbon fiber samples during long-term exposure to water and moisture was estimated.
Investigation of the surfaced metal of the Fe–Cr–Ni–Mn–Mo–Ti–Nb–C system for operation under high-temperature gas-abrasive wear
Authors: Priyatkin D. V. , Artemyev A. A. , Lysak V. I.
Published: November 2022

Compositions of flux-cored wires for electric arc surfacing of alloys of the Fe-Cr-Ni-Mn-Mo-Ti-Nb-C alloy system, resistant to high-temperature gas-abrasive wear, were developed. The deposited alloys were studied by optical and electron microscopy, X-ray mi-crospectral and X-ray diffraction analysis. The influence of the carbon content in the alloy on its structural-phase composition, hardness, and wear resistance at normal and elevated temperatures up to 600°C was revealed. It was established that increasing the carbon content in the alloy from 1.2 to 2.8 wt. % leads to increasing the volume fraction of (Cr, Fe)xCy carbides involved in the formation of the eutectic austenite-carbide matrix of the alloy at 6 times. Their morphology also changes from (Fe, Cr)23C6 to (Fe, Cr)7C3. In this case, the content of (Ti, Nb, Mo)xCy and MoxC carbides in the alloy changes insignificantly, and their average size increases by 10%. It has been established that the formation of a composite structure in the alloy contributes to its high resistance to gas-abrasive wear at a temperature of 600°C. The wear resistance of the developed alloy is comparable to a foreign industrial analogue at a much lower cost.
Structure and phase constitution of graphite-loaded reaction-bonded sic
Authors: Sorokin O. Yu. , Belyachenkov I. O. , Chainikova A. S. , Zhitnyuk S. V. , Medvedev P. N.
Published: November 2022

The influence of porous SiC preforms densities for the siliconizing process on the structure and phase constitution of graphite-loaded reaction-bonded SiC (G-SiSiC) was studied. It was found that varying the densities of porous SiC preforms containing artificial graphite of similar grain size with the dimensions less than 25 mm (in height or diameter) can lead to the G-SiSiC samples with low free Si content (less 4 wt.%.). It was also shown that reaction sintering of G-SiSiC samples with the optimized densities during the siliconizing process results in the formation of a dense fine-grained SiC layer. Moreover, during the siliconizing process, a dense SiC gradient matrix is formed in which graphite and Si inclusions are uniformly dispersed in bulk.
Analysis of the influence of aggressive factors and conditions on the composition of corrosive products
Authors: Vagapov R. K.
Published: November 2022

Data on the use of the X-ray diffraction method in the analysis of the composition of corrosion products are presented. Such knowledge makes it possible to obtain information on the mechanisms of corrosion development and the protective properties of corrosion products, being either dense (with certain protective properties against corrosion) or loose (with a low level of protection against corrosion), which doesn't prevent the penetration of corrosive media to steel surfaces. Under H2S conditions, a layer of mackinawite (tetragonal FeS) is formed on the surface of steels, and in acidic environments of formation water imitations, it was found that, in addition to it, cubic FeS is formed. Iron sulfide with a cubic crystal structure, being metastable, reduces the protective properties of the sulfide film in aggressive acidic H2S media. During carbon dioxide corrosion of steel, the main product is siderite (FeCO3), characterized by the phenomenon of isomorphism (i.e. changes in the chemical composition of the phase while maintaining its crystal structure). It is established that in the formation water model, sediments of non-stoichiometric composition CaxFeyCO3 and (XFe)CO3 are formed, where X = (Са2+, Mg2+, Mn2+). Both of them are poorly crystallized and have defects in the crystal structure, which reduce their protective properties relative to the stoichiometric FeCO3 formed in a 3%NaCl solution. A corrosion inhibitor in aqueous media promotes the adsorption of the inhibitor film, preventing the formation of corrosion products.
Exploring the predictors of zakat compliance in the community of farmers
Authors: Eka Setianingsih Hesti , Irsyad Mohamad , Velayati Ajib Akbar
Published: November 2022

Zakat plays an important role in reducing poverty. This study scrutinizes the influence of individual factors as proxied by attitude, subjective norm, and perceived behavioral control, demographic factors as proxied by Islamic educational background and gender, knowledge of zakat, and religiosity on farmers’ compliance in paying agricultural zakat in Ngawi Regency. Primary data were collected through questionnaires. The population in this study is farmers in Ngawi Regency Indonesia. 100 respondents were selected with a sampling technique carried out through purposive sampling. The result of Partial Least Squares Structural Equation Modeling (PLS-SEM) shows that attitude has no significant influence on zakat compliance. On the other hand, subjective norms, perceived behavioral control, Islamic educational background, knowledge of zakat, and religiosity have a positive influence on zakat compliance. This study indicates that gender is proven to have a negative influence on zakat compliance. This research contributes to providing valuable insight for zakat institutions to establish zakat collection policies based on individual perspectives.
Smart Cities: Un análisis tendiente a transformar las ciudades en más inteligentes y sostenibles
Authors: Torres Mariano María Gabriela
Published: November 2022

En la actualidad nos encontramos viviendo la convergencia de dos fenómenos importantes, por un lado, la expansión urbana a nivel mundial y por el otro el desarrollo de la tecnología y revolución digital. El presente artículo pretende explicar las ventajas que reportan para la calidad de vida de los ciudadanos y para el medio ambiente transformar las ciudades tradicionales en ciudades inteligentes y sostenibles. Asimismo cómo el avance de la tecnología digital y de las tecnologías móviles, el perfeccionamiento de la Inteligencia Artificial en sus subcampos Machine Learning y  Deep Learning, Big Data, como así también el surgimiento de la tecnología Blockchain se han convertido en herramientas fundamentales para abordar problemas globales.
De la utopia antigua 4.0 al estado actual de la maquinacion aristotelica
Authors: Sarramea Alejandro Héctor
Published: November 2022

“La Maquinación”, una realidad utópica descubierta y descartada en el pensamiento aristotélico, cobra relevancia invitándonos a cuestionarnos y replantearnos el rol de los operadores jurídicos a efectos de que logremos desafiar los límites de nuestra disciplina. La reflexión filosófica brinda los cimientos necesarios para edificar el futuro, las fantasías se cumplen.
El robot inteligente y su categorización jurídica
Authors: Mugas Acosta Pablo
Published: November 2022

La personalidad es un atributo normativo diseñado para satisfacer fines específicos mediante la generación de un centro ideal de imputación de relaciones jurídicas. La personalidad depende de un dato pre-normativo: solo puede ser predicada –como atributo– respecto de un ente activo, es decir, capaz de desplegar conducta humana. Dicha cualidad excluye a los entes pasivos. El derecho es un producto cultural destinado a regular conducta humana, por lo tanto, la pretensión de conferir personalidad a un ente pasivo es arbitraria por ser inaptos para el obrar humano. La creciente utilización de robots inteligentes autónomos o semiautónomos provoca la pérdida material de dirección y control del hombre sobre el sistema y sus acciones. Ello se genera el interrogante respecto a la atribución jurídica de las consecuencias causadas por el accionar del robot inteligente, particularmente: si debería constituírselo como un centro de imputación jurídico diferenciado respecto del fabricante, programador, usuario, etc. En respuesta se han formulado tres corrientes conceptuales: a) conferir personalidad electrónica al robot inteligente; b) calificarlo como bien corporal o incorporal según su tipo; y c) aplicar analógicamente el régimen del esclavo del Derecho Romano con las adaptaciones propias al hecho tecnológico. Adherimos a la tesis que los califica como bienes corporales e incorporales –según sea su especie– ya que constituyen entes pasivos incapaces de desplegar conducta humana, representando únicamente instrumentos del obrar del hombre.
Introduccion al Blockchain: analisis del play to earn
Authors: Barria Nieva Sebastián
Published: November 2022

El presente articulo pretender abordar el estudio de la tecnología blockchain, en donde se desarrollará un marco teórico en el cual se propone como objetivo principal que el lector logre comprender el funcionamiento de todo el ecosistema del blockchain, haciendo un breve recorrido teórico por las principales partes que componen una red de blockchain y qué papel cumple cada una de ellos en su funcionamiento. Luego nos introduciremos en uno de los tantos usos que se le puede dar a esta tecnología, más específicamente en un análisis del play to earn (P2E), desarrollando qué es el P2E, como es que funciona, los beneficios que aporta, para concluir explicando el modelo de negocio que este propone y exponiendo algunos casos de éxito en la actualidad.
A Retrospective Review on the Histopathological Pattern of Childhood Malignant Solid Tumors in Ethiopia.
Authors: Watkins Benjamin , Ayele Rahell Hailu , Yimer Yodit Getahun , Bekuretsion Yonas , Muhe Lulu M. , Patel Shivani A. , Cunningham Solveig A.
Published: November 2022

Purpose: Globally, 300,000-400,000 cases of childhood cancers are
estimated to occur yearly. In low- and middle-income countries, where
most children with cancer live, malignancies remain underreported due to
lack of quality cancer registries and data. They also tend to be
under-diagnosed due to limited access to facilities and insufficient
infrastructure to support diagnosis and treatment. Patients and Methods:
This study provides epidemiologic data on the histopathological pattern
and demographic characteristics of pediatric solid malignancies in
children 0-15yrs at Tikur Anbessa Hospital in Addis Ababa, Ethiopia
between January 2016, and August 2020. Results: Within the study period,
432 solid malignancies were evaluated. Among the 401 cases that we were
able to classify, the most common solid malignancies were Lymphoma
(21.8%), Retinoblastoma (19.4%), and Wilms tumor (13.9%). Burkitt
lymphoma accounted for 2.1% of cases, despite being the most reported
pediatric malignancy in sub-Saharan Africa. Brain tumors (5.6%) and
Neuroblastoma (0.5%) were reported less frequently. Possibly due to
detection biases, males were diagnosed more frequently than females (M:
F=1.7), with the largest difference being in Lymphomas (M: F=3.5,
p=0.001). Conclusion: In this report of pediatric cancer in Ethiopia, we
saw similarities with other studies from Africa in terms of tumor types,
age, and gender distribution, except for Burkitt lymphoma and
neuroblastoma. This study highlights the need for improvements in
diagnostic capabilities in low- and middle-income countries as many
tumors may be under- or misdiagnosed. Research and diagnosis of
malignancies need to be expanded in Ethiopia to improve the wellbeing of
children with cancer.
Study of the effect of nickel on toughness and hydrogen embrittlement resistance of X80 pipeline steel
Authors: Xing Xiao , Deng Gonglin , Yang Chao , Liu Jian Guo , Cui Gan , Li Zili , Zhang Yi
Published: November 2022

Experimental tests and molecular dynamics simulations were applied to
investigate the mechanism of Ni concentration on the toughness and
hydrogen embrittlement resistance of X80 steel. The tensile toughness,
impact toughness, and hydrogen embrittlement resistance of X80 steel
increase when Ni < 1%, followed by decreases when Ni
> 1%. Especially, when the Ni concentration exceeds 3%,
the hydrogen embrittlement resistance of the X80 steel is lower than
that of the Ni-free specimen. The relationships between free surface
energy, stacking fault energy, and unilateral passivation crack growth
with Ni concentration were investigated by molecular dynamics
simulations. The results prove that the increase of Ni concentration can
simultaneously reduce the free surface energy and stacking fault energy
of Fe-Ni alloys. And Ni atoms have a more significant effect on the
reduction of stacking fault energy, so that the system releases energy
through plastic deformation and inhibits the generation of cracks.
However, as the Ni concentration exceeds 1%, martensite and carbides
begin to form on the grain boundaries. The toughness and hydrogen
embrittlement resistance of X80 steel decrease with the Ni
concentration.
Response of soil microbial functional structure and metabolic potential to early dry season of Dongting Lake wetland, China
Authors: Wu Haipeng , Dai Juan , Zhou Yinjun , Xiong Ying , Zhou Lu , Zhang Huagang , Li Yifu , Xiao Sha
Published: November 2022

Obvious changes of hydrologic regimes occurred in wetland around the
world, and it also were expected to arise in the following 100 years.
This study examined the response of soil microbial functional structure
and metabolic potential to early dry season (EDS) of Dongting Lake
wetland, China. We measured the soil properties, microbial functional
structure of samples E40, E20 and E0 (dry season arrived early by 40, 20
and 0 days, respectively). The results showed that the EDS caused the
changes of functional structure: the functional genes of E40 had
significantly higher abundance and diversity than those of E0, but no
significant difference was found between those of E20 and E0. Functional
genes associated with matter cycling and organic contaminant degradation
(OCD) also were changed. It could cause the increase of the degradation
of pesticides related compound of E20 and matter cycling and OCD of E40
(except no change in the phosphorus oxidation and the degradation of
polycyclic aromatics and terpenoid).
More than dirt: sedimentary ancient DNA and Indigenous Australia
Authors: Lewis Dawn , Simpson Rebecca , Hermes Azure , Brown Alex , Llamas Bastien
Published: November 2022

The rise of sedimentary ancient DNA (sedaDNA) studies has opened up new
possibilities for studying pre-historic ecology. The use of sediments to
identify organisms even where macroscopic remains are limited or no
longer exist is an exciting and potentially ground-breaking area of
genomics. There are special considerations however when managing this
substrate in Indigenous Australian contexts. Sediments and soils are
often considered as waste by-products during archaeological and
paleontological excavations, and as such are not typically considered of
high value in ethical considerations in traditional western research.
Nevertheless, the product of sedaDNA work – genetic information from
past fauna, flora, microbial communities, and human ancestors – is
likely to be of cultural value for Indigenous peoples. We argue that the
integration of Traditional Knowledges into sedaDNA research would a)
allow identification of sensitive, secret, or sacred genomic data, and
b) improve research outcomes by providing ecological context for species
through multi-millennia oral histories.
Output feedback preview control for periodic systems
Authors: Li Li , Zhang Yaofeng , Xu Xu , Ye Hui
Published: November 2022

In this paper, the static output periodic preview control (SOPPC)
problem of discrete-time periodic systems (D-TPSs) is proposed. First,
an augmented error periodic system (AEPS) is derived by introducing
auxiliary variables related to the system state and input. Consequently,
the SOPPC problem is transformed into a stabilization problem. Second,
sufficient conditions are derived to ensure asymptotic stability, and
these conditions are extended to the D-TPSs with disturbance. Moreover,
the corresponding solvability condition for the design of the SOPPC laws
is proposed using linear matrix inequality (LMI). Finally, a numerical
example is used to illustrate the effectiveness of the results.
A Systematic Literature Review on Long-Term Localization and Mapping for Mobile Robots
Authors: Sousa Ricardo B. , Sobreira Héber M. , Moreira Antonio
Published: November 2022

Long-term operation of autonomous robots creates new challenges to the
Simultaneous Localization and Mapping (SLAM). Varying conditions of the
vehicle’s surroundings, such as appearance variations (lighting,
daytime, weather, or seasonal) or reconfigurations of the environment,
are a challenge for SLAM algorithms to adapt to new changes while
preserving old states. When also operating for long periods and
trajectory lengths, the map should readjust to environment changes but
not grow indefinitely, where the map size should be dependent only on
the explored environment area. Long-term SLAM intends to overcome the
challenges associated with lifelong autonomy and improve the robustness
of autonomous systems. Although several studies review SLAM algorithms,
none of them focus on lifelong autonomy. Thus, this paper presents a
systematic literature review on long-term localization and mapping
following the Preferred Reporting Items for Systematic reviews and
Meta-Analysis (PRISMA) guidelines. The review analyzes 142 works
covering appearance invariance, modeling the environment dynamics, map
size management, multi-session, and computational issues including
parallel computing and timming efficiency. The analysis also focus on
the experimental data and evaluation metrics commonly used to assess
long-term autonomy. Moreover, an overview over the bibliographic data of
the 142 records provides analysis in terms of keywords and authorship
co-occurrence to identify the terms more used in long-term SLAM and
research networks between authors, respectively. Future studies can
update this paper thanks to the systematic methodology presented in the
review and the public GitHub repository with all the documentation and
scripts used during the review process.