bluuebunny/crossref_metadata_2025 huggingface dataset:
Role of telemedicine in COVID-19 pandemic – An overview
Authors: Saxena Tanupriya , Srivastava Ruchi , Chandra Chetan
Published: January 2022

COVID-19 pandemic has caused worldwide havoc. The present healthcare system is ruined, distancing both patients and doctors. To avoid transmission of infection, travel restrictions were made, making the patient’s visit to the doctor difficult. However, routine checkups for patients not infected with COVID-19 should be given without the threat of getting exposed to other patients in the hospital. In this respect, telemedicine becomes a reliable source that provides health services as well as reduces the infection spread. The first known evidence of real-time (live) video consultation occurred in 1959 at the University of Nebraska where doctors used telemedicine to transmit neurological examinations to students. During the first 3 months of 2020, there was a 50% increase in telehealth visits. Most patients from January to March 2020 approached for a condition other than COVID-19. Many telemedicine applications have been launched for teleconsultation such as Practo, Mfine, TATA Health, and Doctor 24 × 7 provide teleconsultation. Telemedicine has shown a huge impact on the present healthcare system during this pandemic and has placed itself in the spotlight during recent times. Through this paper, the role of telemedicine in the current scenario of pandemics and its development through recent times is discussed.
Comprehensive comparison of carotid endarterectomy primary closure and patch angioplasty: A single-institution experience
Authors: Zagzoog Nirmeen , Elgheriani Ali , Attar Ahmed , Takroni Radwan , Aljoghaiman Majid , Klotz Lisa , Vandervelde Cheyanne , Darling Chloe , Farrokhyar Forrough , Martyniuk Amanda , Algird Almunder
Published: January 2022

Background:

Carotid endarterectomy (CEA) is an effective intervention for the treatment of high-grade carotid stenosis. Technical preferences exist in the operative steps including the use patch for arteriotomy closure. The goals of this study are to compare the rate of postoperative complications and the rate of recurrent stenosis between patients undergoing primary versus patch closure during CEA.

Methods:

Retrospective chart review was conducted for patients who underwent CEA at single institution. Vascular surgeons mainly performed patch closure technique while neurosurgeons used primary closure. Patients’ baseline characteristics as well as intraprocedural data, periprocedural complications, and postprocedural follow-up outcomes were captured.

Results:

Seven hundred and thirteen charts were included for review with mean age of 70.5 years (SD = 10.4) and males representing 64.2% of the cohort. About 49% of patients underwent primary closure while 364 (51%) patients underwent patch closure. Severe stenosis was more prevalent in patients receiving patch closure (94.5% vs. 89.4%; P = 0.013). The incidence of overall complications did not differ between the two procedures (odds ratio = 1.23, 95% confidence intervals = 0.82–1.85; P = 0.353) with the most common complications being neck hematoma, strokes, and TIA. Doppler ultrasound imaging at 6 months postoperative follow-up showed evidence of recurrent stenosis in 15.7% of the primary closure patients compared to 16% in patch closure cohort.

Conclusion:

Both primary closure and patch closure techniques seem to have similar risk profiles and are equally robust techniques to utilize for CEA procedures.
Fluid Inclusion Study of Epithermal Quartz Veins from the Kyaukmyet Prospect, Monywa Copper-Gold Ore Field, Central Myanmar
Authors: Oo Toe Naing , Harijoko Agung , Setijadji Lucas Donny
Published: January 2022

The Kyaukmyet prospect is located near the main ore bodies of the Kyisintaung and Sabetaung high-sulfidation Cu-Au deposits, Monywa copper-gold ore field, central Myanmar. Lithologic units in the research area are of mainly rhyolite lava, lapilli tuff and silicified sandstone, mudstone and siltstone units of Magyigon Formation which hosted to be polymetallic mineralization. Our field study recorded that epithermal quartz veins are hosted largely in rhyolite lava and lapilli tuff units. Those quartz veins show crustiform, banded (colloform), lattice bladed texture and comb quartz. The main objectives of the present research in which fluid inclusion studies were considered to conduct the nature, characteristics and hydrothermal fluids evolution from the epithermal quartz veins. In this research, there are three main types of fluid inclusions are classified according to their phase relationship (1) two-phase liquid-rich inclusions, (2) the coexisting liquid-rich and vapor-rich inclusions, and (3) only vapor-rich inclusions. Microthermometric measurements of fluid inclusions yielded homogenization temperatures (Th) of 148–282 °C and final ice-melting temperature (Tm)  of -0.2°C to -1.4°C . The value of (Tm) are equal to the salinities reaching up 0.35 to 2.07 wt % NaCl equiv. respectively. Estimation formation temperature of the quartz veins provide 190°C and 210°C and paleo-depth of formation are estimated to be between 130m and 210m. Petrography of fluid inclusion and microthermometric data suggest that fluid boiling as well as mixing processes were likely to be happened during the hydrothermal fluid evolution at the Kyaukmyet prospect. According to the characteristics of many parameters including petrography of fluid inclusion, microthermometric data, paleo-depth, evidence of quartz vein textures and types of hydrothermal alteration from the Kyaukmyet prospect allows to interpret these data to be the low-sulfidation epithermal system.
Hydrogeochemical and Characteristics of Groundwater in Teluk Nilap Area, Rokan Hilir, Riau
Authors: Mairizki Fitri , Yandra Putra Arief , Adiza Putri Widya , Ferdyansyah
Published: January 2022

Groundwater plays important role as the main water resource for human needs. The vulnerability of groundwater to contaminants both naturally and by human activities can be not avoided as a trigger for groundwater quality degradation. Hydrogeochemical become important highlights in groundwater studies because groundwater conditions in quality and quantity influenced by the geological formation of rock minerals in aquifer. Naturally, the condition of the research area which consists of peat swamps can also affect the characteristics of groundwater. The aims of this research are to determine groundwater types and groundwater facies in study area with an analytical approach using stiff diagram and piper diagram. The method used was purposive sampling by collecting data from dug wells at the research site. 5 samples from dug wells were used as representatives in the groundwater facies analysis. The groundwater facies analysis was carried out by measuring the concentration of major ions such as Na, K, Ca, Mg, Cl, SO4, and HCO3. The highest groundwater level was in the northern part of study area (7,84 m) while the lowest groundwater level was in the southwest part of study area (2,05 m). The results showed three types of groundwater based on stiff diagram as sodium chloride (NaCl), sodium sulfate (NaSO4) and magnesium sulfate (MgSO4). The lithology conditions that composed the aquifer affected the facies or origin of groundwater. The alluvium layer in the research area which rich in sodium (Na+) minerals with chloride (Cl-) or sulfate (SO42-) anions forms chloride sulfate facies (Cl+SO4) which were located in the middle to the south of the study area and sodium (potassium) chloride (sulfate) facies (Na(K)Cl(SO4)) which were distributed in the northern part of study area.
Characterisation of virus-related red tip disease in pineapple (Ananas comosus)
Authors: Abu Kassim Faizah , Vadamalai Ganesan , Alobaidi Khalid H. , Hasbullah Nor Azlina , Thaer Sarah , Al-Obaidi Jameel R.
Published: January 2022

Pineapple (Ananas comosus) is one of the tropical fruits that is cultivated in Malaysia for export as well as domestic use. Unfortunately, the production is heavily affected by the red tip disease which was detected in the southern part of Malaysia 3 decades ago. Despite the identification of this disease, causal agent receives less attention from researchers. Nevertheless, symptoms associated with this infection and the mode of transference inside the plantations indicate viral-like disease. RNA extracted from the pineapple infected leaves introduced to Nicotiana tabacum cv. Coker by kneading the plant leaves to extract fresh sap. Yellowish necrosis was detected three weeks after artificial inoculation. The staining of the fresh diseased sample and inoculated Nicotiana tabacum cv. Coker showed the existence of round particles with an average diameter of 94.25nm under the transmission electron microscope. SDS-PAGE analysis revealed proteins bands similar to those of tospovirus at 25, 55 and 128 kDa. Further protein identification and validation suggested for molecular confirmation of the disease causative agent.
Bioethanol production from pineapple peels waste by heat treatment and enzyme hydrolysis: An eco-friendly and economical method
Authors: Kiruthika Jambulingam , Sathya A. , Sharvika T.
Published: January 2022

Bioethanol is a renewable energy source with reduced CO2 emission and a better alternate for fossil fuels. The production of bioethanol using low cost agricultural wastes such as fruits waste always remains a better solution for the present environmental and energy problems. The present study focusses on the production of bioethanol from pineapple peel wastes by simultaneous scarification and fermentation process in a completely eco-friendly manner and economical manner. The fruit wastes are rich sources of sugars and can be utilized for the production of second generation fuel. Initially, cellulase producing potent bacterial isolate was isolated from soil sample collected from fruit market (Uzhavar Santhai), R.S. Puram, Coimbatore district, Tamilnadu, India. Further, the bacterial isolate was identified by 16S rDNA sequencing and the sequence was submitted in GenBank with the accession number MW227436. The phylogenetic tree was constructed and the bacterial isolate was identified as Bacillus cereus strain JK79. Pineapple peel waste was processed, heat pretreated and was utilized for enzymatic saccharification with crude cellulase enzyme to hydrolyze cellulose into simple sugars. The enzyme hydrolyzed content was allowed to undergo fermentation simultaneously (Simultaneous saccharification and fermentation) utilizing Saccharomyces cerevisiae to produce bioethanol. The yield of bioethanol was determined by potassium dichromate method. About 10.07 g/l of bioethanol was obtained by fermenting the enzymatically hydrolyzed pineapple peel waste using Saccharomyces cerevisiae. The production of bioethanol was confirmed by GC-MS.
Ionic Conductivity of Ce0.91Ca0.09O2 as an Electrolyte for Intermediate Temperature Solid Oxide Fuel Cells
Authors: Momin Naeemakhtar , Manjanna J.
Published: January 2022

The search for new cost-effective electrolyte materials for IT-SOFC towards its mass scale commercialization has gained momentum in recent years. The Ca- doped ceria having composition Ce0.91Ca0.09O2 was prepared using the facile conventional solid-state method. The structural and electrical properties of low sintered ceramic samples have been characterized by X-ray diffraction (XRD), UV–VIS diffuse reflectance spectroscopy (DRS) and A.C. impedance technique respectively. The oxide ion conductivity was measured between the temperatures 573 K−973 K in air. The obtained results showed that total conductivity is mainly dependent on the grain boundary effect. The nanocrystalline Ce0.91Ca0.09O2 exhibited the high total ionic conductivity of 7.36  103 S cm1 at 973 K with a lower activation energy of 0.96 eV. The obtained results highlight the use of cost-effective dopant in ceria lattice to develop commercially viable electrolyte materials for IT-SOFC.
Microwave assisted Acetylation of Amines using Imidazole Hydrochloride under solvent-free condition
Authors: Chikkulapalli Anil , Sumathi S.
Published: January 2022

A simple and novel microwave irradiation method has been developed for N-acetylation of both aliphatic and aromatic amines with N,N-dimethylacetamide via Nacetyl imidazole by using Imidazole hydrochloride under solvent-free condition. The method proved more eco-friendly and economic.
A review of extraction methods, geographic variation in chemical composition and identification of marker compounds in bud, leaf and stem clove oil
Authors: Tambe E. , Gotmare S.
Published: January 2022

Clove (Syzygium aromaticum) is one of the most precious spices that has been used since ages. Cloves are well-known for their many medicinal properties. It is also widely used in food, flavours and cosmetics industry. One of the main usage of cloves is in the dentistry field to treat bad odour, toothache etc. Though it is native to Indonesia, it has been cultivated in several parts of the world. Clove oil is the richest source of phenolic compounds such as eugenol, eugenyl acetate. It is most powerful source of antioxidant as per oxygen radical absorption capacity. Many review articles had already been published on clove oil which elucidate its morphology, biological and pharmacological benefits. The characteristics of this review study is the exploration and elaborate discussion about extraction methods, discrepancies between the chemical composition due to geographic conditions and identification of marker compounds in leaf, stem and bud clove oil. The comprehensive review revealed that the clove oil mainly consists of phenolic compounds such as eugenol, eugenyl acetate followed by sesquiterpene namely beta-caryophyllene.
3, 3’-thiodipropionic acid: A versatile monomer to synthesis aliphatic random copolyesters with biological applications
Authors: Sudhakar K. , Kalpana B.
Published: January 2022

A prime monomer 3,3’-thiodipropionic acid was mixed with other monomers such as 1,4 butanediol and 1,4 butanedioic acid to produce aliphatic random copolyester Poly(butylthiodipropionate-co-butylbu tanedioate) (PBTBB) by direct melt polycondensation method. The physical properties such as solubility by solubility test, inherent viscosity by Ubbelohde viscometer, Tg by differential scanning colorimetry (DSC) and the crystalline nature by X-ray diffraction (XRD) technique of synthesized polymer were investigated. The chemical structure of the obtained copolyester was studied by FTIR, 1H-NMR and 13CNMR spectroscopy. To resolve the biological applications, the synthesized copolyester was tested for human pathogenic bacteria using well diffusion method, in vitro cytotoxicity against normal Vero cell line, A549 lung cancer cell line by MTT assay and in vitro antioxidant property studied by Dot-Blot assay.
Feasibility Study of Methane Generation from Swine Manure and Eichhornia Crassipes [Mart.] Solms
Authors: Sawasdee Vanatpornratt , Pisutpaisal Nipon
Published: January 2022

This research was made to study the feasibility of methane generation from swine manure and water hyacinth (Eichhornia Crassipes [Mart.] Solms) under mesophilic conditions. The component of Eichhornia Crassipes [Mart.] Solms was analyzed before pretreatment that was 21.47% cellulose, 14.98% hemicellulose and 9.88% lignin respectively. Eichhornia Crassipes [Mart.] Solms was pre-treated by using the physical pre-treatment and physicalchemical pre-treatment method. The experiment was batch-test operated within forty days of fermentation when incubated at 37 °C. The highest methane production was obtained from water hyacinth physical pre-treatment with a swine manure ratio of 50:50, Hmax 490 ml, Rmax 0.90 ml h-1 and a yield of 135 ml CH4/ g TVS removal respectively. In terms of physicalchemical pre-treatment for water hyacinth, the highest methane production was obtained with water hyacinth to swine manure 50:50 ratio with Hmax 290 ml, Rmax 0.59 ml h-1 and a yield of 130 ml CH4/ g TVS removal respectively. These results showed that the physical pre-treatment method was suitable as a water hyacinth pretreatment for methane production. In terms of economic feasibility, it was evaluated that the cost, net present value (NPV), a benefit to cost ratio (B/C ratio) and payback period (PBP) were 64.27 USD, 12,116.60, 10.52 and thirteen months respectively. Finally, this research will be useful for aquatic invasive species management and biogas production.
Preliminary Phytochemical analysis of Andrographis paniculata Leaf extract
Authors: Aiswarya M. , Anu Ann M. , Saisree K.S. , Surya S.M.
Published: January 2022

Andrographis paniculata is a traditional medicinal plant widely used in Ayurveda and Siddha treatment. The extract from this plant is used to prevent and cure certain diseases. Phytochemical analysis of this leaf extract would identify the compounds in it and through this, new medicine could be formulated. In this study, three different solvent systems (Solvent A-100% aqueous, Solvent B-100% methanol and Solvent C- 50% aqueous and 50% methanol) were used to extract the compounds from leaves with three different time period of 24hrs, 48 hrs and 72 hrs. When compared to other conditions, the majority of the compounds were discovered in analyses with solvent C at 24hrs. The major compounds such as alkaloid, terpenoid, flavonoid, tannin and saponin were identified in the leaf extract. This study reveals that; with better extraction conditions, the presence of most of the phytochemicals from the leaf extract could pave a way to formulate new medication.
Novel copolymers of vinyl acetate. 4. Halogen ring-substituted ethyl 2-cyano-3-phenyl-2-propenoates
Authors: Killam Benjamin Y. , Amend Rebecca J. , Budz Margaret A. , Collins Ashley B. , Hinz Shannon M. , Johnson Amanda C. , Kibler Lesli N. , Salem Sirena Z. , Scott British A. , Skukan Irene , Staunton Erin K. , Sweeney Katherine J. , Strang Andrew , Tennant Rhiannon E. , Weber Daniel , Worsham Ayesha Z. , Kharas Gregory B
Published: January 2022

Novel copolymers of vinyl acetate and halogen ring-substituted ethyl 2-cyano-3-phenyl-2-propenoates, RPhCH=C(CN)CO2C2H5 (where R is 2-Br, 3-Br, 4-Br, 2-Cl, 3-Cl, 4-Cl, 2-F, 3-F, 4-F, 2,3-dichloro, 2,4-dichloro, 2,6-dichloro, 3,4-dichloro, 2,4-difluoro, 2-bromo-3,4-dimethoxy) were prepared in solution with radical initiation at 70C. The propenoates were synthesized by the piperidine catalyzed Knoevenagel condensation of halogen ring-substituted benzaldehydes and ethyl cyanoacetate, and characterized by CHN analysis, IR, 1H and 13C-NMR. The compositions of the copolymers were calculated from nitrogen analysis and the structures were analyzed by IR, 1H and 13C-NMR. Thermal behavior of the copolymers was studied by DSC (Tg) and TGA. Decomposition of the copolymers in nitrogen occurred in two steps, first in the 159-500ºC range with residue (8.8-15.2 wt%), which then decomposed in the 500-650ºC range.
HAND BOOK ON PRACTICAL MICROBIOLOGY
Authors: Palanisamy Dr Senthilkumar , Venkatachalam Dr Suresh Kumar Tirupur , Babu Sudhagar
Published: January 2022

Hand book of Practical Microbiology, is a performance based text designed for use by students of microbiology, biotechnology, medicine, laboratory technology, allied sciences; by microbiologists and by others who are interested in practical microbiology. The intent of the book is to provide recent information and explain in detail the routine microbiological methods performed in a Microbiology laboratory. Hand book of Practical Microbiology consists of 12 chapters. Each chapter contains practical exercises. Each exercise contains theoretical aspects of the practical, principle, and experimental procedure in detail.
PENGARUH INFLASI, UKURAN, DAN UMUR TERHADAP KINERJA REKSA DANA SAHAM DI INDONESIA
Authors: Christiandi Sendi , Colline Fredella
Published: January 2022

Perkembangan investasi di pasar modal sudah berkembang mengikuti perubahan industri terutama berinvestasi pada reksa dana saham. Penelitian ini bertujuan untuk mengetahui pengaruh variabel inflasi, ukuran reksa dana saham, dan umur reksa dana saham terhadap variabel kinerja reksa dana saham. Pengumpulan sampel menggunakan teknik purposive sampling untuk reksa dana saham yang terdaftar di Otoritas Jasa Keuangan periode 2010-2019. Berdasarkan kriteria sampling, diperoleh sampel sebanyak 37 reksa dana saham. Data sampel dianalisis dengan menggunakan analisis regresi linier berganda. Berdasarkan hasil penelitian disimpulkan bahwa inflasi berpengaruh signifikan terhadap kinerja reksa dana. Ukuran reksa dana dan umur reksa dana tidak mempengaruhi kinerja reksa dana saham. Melihat dari hasil penelitian tersebut maka manajer investasi sebagai pihak yang dipercaya oleh para investor dalam mengelola dana investasinya perlu memperhatikan inflasi dalam mengelola aset secara tepat. Sebagai investor perlu memperhatikan kebijakan investasi dalam fund fact sheet, prospectus, dan strategi masing-masing reksa dana saham yang ingin diinvestasikan agar dapat mengambil keputusan yang tepat.
Poznawać, wierzyć, kochać. O Wojciechu Bębnie i jego wielu światach
Authors: Kairski Mariusz
Published: January 2022

The article presents the prominent Polish ethnologist and missionary, Rev. Prof. Wojciech Bęben. First, the text outlines the scholar’s academic biography and describes four distinct stages of his work. The first stage was related to research in the Manam Motu Island,the second one involved long-term, in-depth fieldwork on the Bam (Biem) Island, the third included research among the peoples of New Guinea, while the last has been related to fieldwork in the Torres Strait Islands and has involved travels to Australia, New Zealand and Polynesia. In the second part, the text presents the scientific achievements of Wojciech Bęben, his publications, teaching legacy and his contribution to the organization of scientific activities.
Życie „pomiędzy”. O antropologii i badaniach terenowych – rozmowa z ks. prof. Wojciechem Bębnem
Authors: Jutrzenka-Trzebiatowska Barbara
Published: January 2022

Barbara Jutrzenka-Trzebiatowska talks to Wojciech Bęben about anthropology and fieldresearch.
Kangur – totem czy esencja? Dwie koncepcje krajobrazu
Authors: Smyrski Łukasz
Published: January 2022

The paper analyzes landscapes of indigenous societies. Howard Morphy, in his work focusing on the Aborigines, treated the landscape as a representation of past mythical events. Such an approach involves taking a closer look at the material aspects of landscape and emphasizes the existence of realties between contemporary Aborigines and the past. A different theoretical approach was developed by Tim Ingold, conceptualizing landscape as a human-land relationship based on essence, where all beings derive their essential form and substance directly from the land, which embodies the creative forces of the ancestors. Ingold’s understanding of landscape led me to rethink my research in the Altai Mountains of Southern Siberia, conducted 25 years ago. I argue that the relationship with the land is crucial for the Altaian people. The land’s essence is not changeable and all living beings are its emanation. The landscape is therefore not a record of the past, but an active field in which the relationship between human and non-human subjects and the land is established.
Papuzie węże, wężowa cykada. O międzygatunkowym podzielaniu właściwości w etnozoologiach i kosmologiach Indian i Metysów Amazonii
Authors: Świerk Kacepr
Published: January 2022

In this article, I present two examples of animals which, according to the Matsigenka and other native and mestizo Amazonians, share important properties with other, unre- lated (from the Western, or scientific point of view) animal species. The first example con- cerns the two-striped forest-pitviper (Bothrops bilineatus), which the Matsigenka and some other indigenous peoples associate with several species of parrots. According to the indig- enous view, there exist several „species” (ethnospecies) of the two-striped forest-pitviper, each of them sharing color patterns with particular parrot species. The second example concerns the lantern-fly (Fulgora laternaria, Fulgora spp.), an insect which in many parts of South America is considered a deadly, venomous snake in cicada-like form.
PROSPECTIVE METHODS OF PROTECTING THE FRAMEWORK WEB APPLICATION ON THE GRADLE AUTOMATIC ASSEMBLY SYSTEM
Authors: Ilyenko Anna , Ilyenko Sergii , Kulish Tatiana
Published: January 2022

The article considers the problem of providing protection of the web framework application in the system of automatic build gradle and defines perspective methods of providing protection. This article defines that the basic and generally accepted approach to ensuring the security of a web application is a properly constructed test framework. During research the analysis of modern protection methods of web application of the framework based the automatic assembly gradle system is made. A comparative analysis of methods is also included.The basic approaches and methods concerning the organization of application protection are defined on the basis of the modern framework analysis. During planning a test framework, the automator is faced with the task of choosing methods that will solve the problem, will be flexible to change, easy to read and are fast for finding application vulnerabilities. At the stage of developing a test framework, it is planned to choose a suitable method for the specific category. Choose to check the client, web server or both at once; write api and ui tests to implement in individual or project or projects, choose the test data to use; define how to generate and transmit user tokens, which patterns to use; define whether they are needed. Implement parallelization for api tests or for ui as well; define how to check the models that come in the answers. This article outlines the methods that cover these issues and makes their brief analysis. The research of perspective methods and means of web application protection of the framework on the automatic assembly gradle system allows to state that correctly constructed test framework is one of effective and complex approaches to provide security information, which allows detection of vulnerabilities and correction of violations on the early stages of product development at the right time.
EXPERIMENTAL STUDIES OF THE STAND OF SIMULATION MODELING OF LASER MICROPHONE OPERATION FOR REMOVAL OF ACOUSTIC INFORMATION
Authors: Martseniuk Maksym , Skladannyi Pavlo , Astapenya Volodymyr
Published: January 2022

He who possesses information owns the world. This statement is becoming more relevant every day. It is information that has become a tool for modern management and development. Therefore, the role of information technology is also constantly growing along with the risk of their malicious use. Attackers use all possible methods and means of technical intelligence to use potentially possible and create new types of information leakage channels to intercept it. object of information activities. Such oscillations caused by a certain speech (acoustic) signal can be intercepted by means of long-range intelligence. Most often, a laser microphone is used as such. The essence of its action is to emit a laser on the surface of the selected OID, which circulates a speech signal that creates sound vibrations on this surface. The movement of the surface leads to the modulation of the wave by phase, which is manifested in the variable nature of the sound signal Doppler shift of the frequency of the received signal. Often, such a surface is the glass of the windows, which reflects the beam to the receiver, to which is connected a detector that can reproduce the sound from the OID. This study aims to study the dependence of the laser microphone on such factors as: the location of the radiation source and the beam receiver from the membrane; membrane surface material; receiver type; materials of fencing constructions OID. The goal is to create a stand to demonstrate the operation of a laser microphone. The research process is carried out on a smaller scale, which is why an improvised room in the form of a cardboard box was chosen as the OID. Available tools were used to reproduce the operation of the laser microphone, so a laser pointer was chosen as the illuminator, and devices such as a solar panel, a light sensor and a signal amplifier microphone were used as the receiver. The study of the influence of selected factors was performed by measuring the voltage and volume of the acoustic signal using a multimeter and a certified program on the tablet, respectively.
ALGORITHM FOR DETERMINING THE MEASURE OF EXISTENCE OF UNRELIABLE INFORMATION IN THE CONDITIONS OF INFORMATION CONFLICT
Authors: Laptievа Tetiana
Published: January 2022

Social interaction of subjects in the modern world, in addition to positive forms, also has negative ones. One of such forms is information confrontation, the conceptual basis of which is to spread in the information space of the enemy unreliable information to influence the assessments, intentions, and orientation of the population and decision-makers. In this case, information becomes a more important resource than material or energy resources.

The analysis of laws and properties of existence and distribution of information in the conditions of information confrontation is carried out. Based on the analysis of the above laws and studying the properties of information, the main features of the perception of information by the subjects are formulated. These are selectivity, attitude to certain information, authority (reputation), imaginary secrecy of receiving information. It is shown that on the basis of the formulated features of perception of information of subjects it is possible to create visibility of reliability of the information, and then no force will convince that it is specially made for the purpose of incorrect estimation, the negative orientation of the population and decision-makers.

The main advantage of the proposed algorithm is that the parameters of information evaluation are used as a measure of the probability of propagation of inaccurate information. The degree of probability of dissemination of unreliable information is determined for each law of existence of information separately. The general estimation of the probability of distribution of unreliable information consists of the production of values of measures of each law in the person. Depending on the preference of a particular law for a particular type of information, the value of the measure will vary. That is, the proposed algorithm, in contrast to existing methods of evaluating information, additionally takes into account the type and class of information.

The direction of further research: development of a scale of measures to assess the probability of spreading inaccurate information. Using as coefficients of the model the parameters of the developed scale of measures to assess the probability of propagation of inaccurate information. Creation of a mathematical model of distribution of unreliable information in the conditions of information confrontation.
METHOD OF CALCULATING THE PROTECTION OF PERSONAL DATA FROM THE NETWORK CLUSTERING FACTOR
Authors: Akhramovich Volodymyr
Published: January 2022

A mathematical model has been developed and a study of the model of personal data protection from network clustering coefficient and data transfer intensity in social networks has been carried out.

Dependencies of protection of the system from the size of the system (and from the amount of personal data); information security threats from the network clustering factor.

A system of linear equations is obtained, which consists of the equation: rate of change of information flow from social network security and coefficients that reflect the impact of security measures, amount of personal data, leakage rate, change of information protection from network clustering factor, its size, personal data protection.

As a result of solving the system of differential equations, mathematical and graphical dependences of the indicator of personal data protection in the social network from different components are obtained.

Considering three options for solving the equation near the steady state of the system, we can conclude that, based on the conditions of the ratio of dissipation and natural frequency, the attenuation of the latter to a certain value is carried out periodically, with decaying amplitude, or by exponentially decaying law. A more visual analysis of the system behavior is performed, moving from the differential form of equations to the discrete one and modeling some interval of the system existence.

Mathematical and graphical dependences of the system natural frequency, oscillation period, attenuation coefficient are presented.

Simulation modeling for values with deviation from the stationary position of the system is carried out. As a result of simulation, it is proved that the social network protection system is nonlinear.
EXPERIMENTAL DETERMINATION OF OPTIMAL PARAMETERS OF MOBILE TELECONFERENCES
Authors: Byts Andrii , Sokolov Volodymyr , Mazur Nataliia , Kozachok Valerii , Bessalov Anatoly
Published: January 2022

The article considers the problem of ensuring the availability and integrity of wireless subscribers in cellular and other wireless corporate networks. The article aims to determine the threshold values for the moment of failure of video transmission, quantitative parameters, artifacts, and the number of errors for the image. Show the dependence of the integrity of data transmitted in real-time on the characteristics of the environment. Two approaches were used to assess the quality of video information: qualitative (image recognition assessment) and quantitative (error measurement). Because the research program was written in the Kotlin programming language, a library written in Java or Kotlin was required. After searching the library, it turned out that only three libraries meet such parameters as reliability, relevance, and availability of documentation: Jaffree, Xuggler, and VLCJ. After gathering information, it was found that the most common screen extensions for desktops are 1366 × 768 and for phones—360 × 640. An error occurred that RTP did not support more than one connection. Also, the RTSP protocol could not pass the experiment on codecs other than MP4V. The experiment stopped earlier than necessary without error. Judging by the indicators, this was a very high CPU load. All other protocols were successfully tested, and results were obtained. During the experiments, we encountered various video anomalies. The worst was the video playback problem with the MJPG codec. Other anomalies were also identified: frame delay, incorrect frame rendering, white noise, and white noise mixed with frames. It is clear how up to 128 kbps experiments are successful and then begin to stop the video stream without error information. According to the results of experiments, the H.264 codec performs best.
Pathological Approach to Pleural Malignant Mesothelioma
Authors:   Vanessa Fonseca-Ferrer, MD,   Luis Gerena-Montano, MD , Héctor A. Nieves Figueroa, MD,   William Rodriguez-Cintrón, MD
Published: January 2022

Exposure to asbestos can lead to asbestosis or malignancy 10-40 years after initial exposure [1]. Although its use has been banned in multiple countries, past occupational exposure leads to most cases that we see in present time. Malignant mesothelioma is an insidious and rare neoplasm that can arise from mesothelial surface cells, being Malignant Pleural Mesothelioma (MPM) the most common type. Lifetime risk of developing mesothelioma among asbestos workers can be as high as 10 percent and latency period is approximately 30-40 years since time of exposure to development of disease [2]. Annual incidence in the united states is approximately 3,300 cases per year [3]. Median overall survival of patients with advanced unresectable disease is approximately 12 months [4]. Clinical suspicion should arise in patients with previous exposure to asbestos who present with pleural thickening and/or effusion with associated respiratory symptoms. Most symptoms are nonspecific such as chest pain, dyspnea, cough and night sweats. Initial evaluation includes chest x-ray, contrast enhanced CT of the chest to find pleural abnormalities, thoracentesis and closed pleural biopsy. However, difficulties establishing diagnosis have been illustrated on studies where thoracentesis and pleural fluid cytology only yields diagnosis in 26% of cases. The diagnosis, then, is established by morphologic and immunohistochemistry findings of cytologic and surgical specimens.
The Impact of Linguistic Concordance and the Active Offer of French Language Services on Patient Satisfaction
Authors: Timony, MA, PhD (c) Patrick , Gauthier, PhD Alain , Wenghofer, PhD Elizabeth , Hien, PhD Amelie
Published: January 2022

Communication is essential to providing quality primary care. Linguistic concordance between patients and physicians has been linked to improved health outcomes and greater patient satisfaction. Although Canadian Francophones often struggle to access linguistics concordant health services, the concept of the active offer of French Language Services (FLS) has emerged as a means of ensuring the availability of such services and improving the francophone patient experience.  However, the impact of language concordance and the active offer of FLS on patient satisfaction among Ontario Francophones remain largely unknown. Patient satisfaction surveys were collected as part of a continuing education program targeted at family physicians in Northeastern Ontario.  Participating physicians distributed patient surveys consisting of select patient satisfaction questions from the Physicians Achievement Review (PAR) and select questions from the Active Offer of French Language Services in Minority Context Measure. Valid surveys were received from 235 patients. Just under half of these (44%) identified as Francophones, 62.6% had a French-speaking family physician; however, only 17.2% reported regularly speaking in French with their family physician.  As hypothesized, there was a consistent tendency for Francophones who experience stronger linguistic concordance with their family physician to report higher satisfaction scores. Francophones who regularly speak French with their family physicians were more satisfied ( = 4.63) than those who rarely/never speak French ( = 4.29, F(1; 83) = 4.852; p < 0.05).   There was also a statistically significant interaction between the patients' language of preference and the service language. Francophones who prefer French and regularly speak it with their family physician (linguistic concordance; adj= 4.82) were significantly more satisfied than those who prefer French yet rarely/never speak it (linguistic discordance; adj= 4.06, F(1; 75) = 11.950; p < 0.001). Furthermore, a positive correlation between patient satisfaction and the active offer was observed in Francophones (r = 0.49, p<0.001). The present findings provide evidence of the impact of linguistically adapted health care services on the satisfaction of Ontario Francophones and suggest that patient satisfaction may be improved through the active offer of FLS. A larger and more diverse sample is required to confirm these findings.
PALYNOLOGICAL STUDY OF THE JAMBI SUB-BASIN, SOUTH SUMATRA
Authors: Setyaningsih Christina Ani , Lelono Eko Budi , Firdaus Iskandar
Published: January 2022

The palynological study of the Jambi Sub-basin, South Sumatera is carried out to construct biostratigraphy of the identifi ed formation. The palynological analysis provides an age interpretation as well as environment of depositional interpretation. The study uses outcrop samples which were collected from Merangin River, Muara Jernih and Mengupeh areas. The age of the studied sediment ranges from Early to Middle Miocene. The top Middle Miocene age is identifi ed by the occurrence of pollen Florschuetzia levipoli and Florschuetzia meridionalis, whilst the base of Early Miocene is marked by the appearance of nannoplankton Sphenolithus compactust. The studied sediment cropping out at the Merangin River and Muara Jernih area interpreted as Talang Akar Formation was deposited in a lower delta plain to delta front during Early Miocene. In the Mengupeh area, this sediment shifted landward into upper delta plain to lower delta plain environment during Middle Miocene.
HYDROCARBON POTENTIAL OF TOLO BAY MOROWALI REGENCY: QUALITATIVE ANALYSIS
Authors: Suliantara Suliantara , Susantoro Tri Muji
Published: January 2022

Tolo Bay is located between East Arm and Southeast Arm Sulawesi, reaching a water depth of up to 3500 meters below sea level. Regionally, this block is situated within Banggai Basin where some gas and oil fi elds are already in production. The closest fi eld is Tiaka Oil Field located about 125 kilometers northwest of the study area. A geo-science review has been conducted to clarify the potential existence of hydrocarbon in this block. Based on previous reports, papers, and subsurface data from the Directorate General of Oil and Gas, the study area is located within the collision area between Banggai-Sula Microcontinent and Sulawesi. This collision occurred during Late Creataceous and Middle Miocene periods. During drifting phase a sedimentation process occurred at the front of the Banggai-Sula Microcontinent. This sediment is potentially source rock and reservoir rock. Meanwhile, during the drifting phase the study area is interpreted as located at the southern part of Banggai-Sula Microcontinent. This different tectonic setting will impact on the type of sedimentary rock, hence source rock and reservoir rock occurrence in the study area is still unclear. As source rock and reservoir rock within the study area are unclear, hydrocarbon explorations will be very risky. In order to reduce exploration risk, it is proposed to conduct geological and geophysical studies using the latest seismic data that was surveyed by PT. TGS – NOPEC and PT. ECI – PGS.
THE INFLUENCE OF BIODIESEL BLENDS (UP TO B-20) FOR PARTS OF DIESEL ENGINE FUEL SYSTEM BY IMMERSION TEST
Authors: Anggarani Riesta , Wibowo Cahyo Setyo , Yuliarita Emy
Published: January 2022

The Government of Indonesia will implement the mandatory policy on the use of Diesel Fuel and Biodiesel mixture with minimum 20% volume of biodiesel (B-20) start from 2016. From technical point of view, compatibility issue becomes one of the problems to be considered by automotive industries. The concern relate with solvent characteristic of biodiesel, which cause the biodiesel and its blends react with the parts of fuel system, especially the elastomers. This work is aimed to identify the material constructed the fuel system parts, including metal and non-metal parts, which has good compatibility to biodiesel blends up to B-20. Identifi cation of the parts material was done by FTIR and DSC for non-metal parts and by XRD and XRF for metal parts. The immersion test is used to compare the effect of fi ve biodiesel-diesel fuel blends (B-0, B-5, B-10, B-15, and B-20) to the physical change of metal and non-metal parts of diesel fuel system in a 2500 hours test period. The physical change being checked is the weight of the parts. The result obtained that for immersed metal parts, the change of weight occurred in the range of 0.007% to 0.595%. The higher weight change obtained by non-metal parts in the range of 0.001% to 13.85%. The lowest change was shown by metal parts consists of an alloy of CuO, Al2O3 and SiO, whether for non-metal parts was shown by a polymer type of Fluoroviton A. Through FTIR analysis we also observed that fuels composition before and after immersed with the tested parts were not change signifi cantly means that effect of solvent characteristic of biodiesel in the fuel mixture is negligible.
EFFECT OF ACTIVATION TEMPERATURE AND ZnCl2 CONCENTRATION FOR MERCURY ADSORPTION IN NATURAL GAS BY ACTIVATED COCONUT CARBONS
Authors: Rosmayati Lisna
Published: January 2022

Elemental mercury from natural gas has increasingly become an environmental concern due to its high volatility and toxicity. Activated carbon adsorption is an effective mercury control method. Mercury content in natural gas should be removed to avoid equipment damage in the gas processing plant or the pipeline transmission system. This research describes the process of mercury removal from natural gas by coconut active carbon impregnated with ZnCl2. Activation temperature and ZnCl2 solution concentration are significant affect the mercury adsorption capacity. Charcoal was prepared from coconut shell and activated at 500, 700 and 900oC in constant fl ow of nitrogen. The effect of activation temperature and ZnCl2 concentration for mercury adsorption on adsorbent show that the adsorption ability of adsorbent is affected by increasing activation temperature up to an optimum temperature of 700oC. Ability of adsorption increases with increasing ZnCl2 concentration and mercury adsorption was optimum at 7% concentration of ZnCl2. The results indicated that the adsorption capacity of mercury in natural gas by activated carbon-impregnated chlor is very signifi cant. The conclusion of this paper is that optimum activation temperature 700oC and 7% ZnCl2 impregnated on adsorbent can improve the mercury adsorption in natural gas.
BUFFER REPLACEMENT AND SIMULTANEOUS SACCHARIFICATION AND FERMENTATION ON BIOBUTANOL PRODUCTION?FROM LIGNOCELLULOSIC BIOMASS
Authors: Rani Devitra Saka , Kussuryani Yanni
Published: January 2022

Lignocellulosic biomass is excellent feedstock for biofuel such as biobutanol. Bagasse, rice straw, and empty fruit bunch (EFB) oil palm are untapped potential for biobutanol production as gasoline blending/ substitution. However, biobutanol production by fermentation from lignocellulosic biomass is a process that consumes time and energy which leads to high production costs. This research is intended to optimize biobutanol production that reduces production costs, an important factor on an industrial scale. Optimization is conducted by replacing the buffer solution in enzymatic hydrolysis with distilled water and by using Simultaneous Saccharification and Fermentation (SSF). The results showed that the buffer replacement with distilled water can reduce cost by approximately 41,726 IDR/liter hydrolysate. Biobutanol contents from all biomass of bagasse, rice straw, and EFB oil palm are higher using SSF compared to Separate Hydrolysis and Fermentation (SHF). The SSF system can cut production time by 3 days and save electricity of 32.4 kWh.?