Material Research Articles

Asclepiadaceae of Maharashtra

Family Asclepiadaceae is represented by 250 genera and ca 3000 species mainly distributed in tropical and subtropical regions of the world. It is represented by 43 genera and ca 243 species in India, of which, 31 genera, 82 species, 2 subspecies and 7 varieties are known from the State of Maharashtra. The family is well known for endemism, most elaborate complicated flower of all the dicots and contrivances for pollination. Most of the members of the family are restricted in distribution and many of them fall under some IUCN categories of rare plants. Many of the species are not available for taxonomic studies due to rarity of plant materials. Similarly fleshy nature of flowers makes it difficult to study floral structure in dried herbarium specimens. During last decade, deliberate attempts were made to collect asclepiads of Maharashtra and study their characters in fresh and prickled liquid preserved materials. During 10 years intensive survey of asclepiads of Maharashtra, about 63 species of the total 82 species reported for the State have been collected, documented, photographed, studied and reported in the present paper. The genus Ceropegia alone accounts for 24 species and 2 varieties for the state. Photographs of asclepiad flowers are found to be of paramount value in easy identifications than their descriptions. The paper gives an account of Asclepiads of Maharashtra, their distribution and present field status.

Correct Identity of some Folk Medicines of South Western Maharashtra

Sixty nine samples folk medicines produced from local market have been characterized botanically and pharmacognostically. Botanical characterization has been done by actual comparison of authentic samples with that of market samples. The present paper deals with enumeration of these species used in folk medicine and gives correct botanical identity of plant materials, their common names, local names, parts used and botanical diagnostic characters.

ANTIDIARRHOEAL POTENTIAL OF FRACTIONS OBTAINED FROM METHANOL EXTRACT OF BRIDELIA ATROVIRIDIS (EUPHORBIACEAE) LEAVES ON CASTOR OIL-INDUCED DIARRHOEA IN SWISS ALBINO MICE

Background: Diar r hoea constitutes a major health concern, especially for children under the age of five. Orthodox drugs available for the treatment of diarrhoea are fraught with some challenges not limited to high cost, adulteration and toxic side effects, thereby making a case for alternative remedies, with several medicinal plants known to contain biologically active components that possess curative properties against diarrhoea.Objective: The study was under taken to evaluate the effect of fr actions (ethylacetate, n-butanol and residual aqueous) obtained from methanol extract of Bridelia atroviridis leaves on castor oil induced diarrhoea in Swiss albino mice.Methods: Powder ed plant mater ial was extr acted with absolute methanol using soxhlet apparatus and further fractionated successively with ethyl acetate, n-butanol and distilled water. In castor oil-induced diarrhoea, castor oil-induced enteropooling and electrolyte concentration tests, fasted mice divided into nine (9) groups of five mice each were administered 250 and 500 mg/kg of fractions obtained from B atroviridis leaves while standard drug (loperamide) was administered at 3 mg/kg.Results: However , only aqueous fraction (250 and 500 mg/kg) showed significant (p<0.05) difference in volume of intestinal content when compared to castor oil control group.Conclusions: This study provides scientific data on the antidiarrhoeal potential of fractions obtained from methanol extract of Bridelia atroviridis leaves on castor oil-induced diarrhoea in Swiss albino mice, hence justifying its use in traditional medicine.

Microleakage of Root Canal Sealed with Temporary Endodontic Sealing Materials

To measure the microleakage of different materials used as temporary endodontic sealing materials and to compare between them. Sixty sound human premolars extracted for orthodontic purpose, caries and cracks free were used. Teeth were divided into 6 groups depending on type of temporary materials (glass ionomer cement, zinc phosphate cement, amalgam, temporary filling "zinc oxide eugenol") for temporization and control groups (negative and positive). For each tooth, an access opening was done followed by instrumentation, irrigation and dryness. Then application of different temporary materials. Evaluation of marginal microleakag e (tooth – restoration interface) were done by using dye penetration test. The study was done in Department of Conservative Dentistry, College of Dentistry, University of Mosul. The results showed significant differences (p< 0.05) in marginal microleakage among groups tested. But there were no significant difference between buccal and lingual tooth restoration – interface for each group. Glass i onomer cement showed less microleakage at tooth – restoration interface when compared with other temporary filling mater ials which used in this study. Glass ionomer cement has sup erioer effect on reduction of microleakage when compared with other temporary filling,when used for temporization had more ability to reduce microleakage than zinc phosphate cement, amal gam and lastly temporary filling (zinc oxide eugenol).

Evaluation of Color Stability for Two Types of Denture Base Materials: Heat Cured Acrylic and Flexible Resin.

Commonly consumed beverages used by human being daily (Tea & Cola) caused external staining. This study is done to evaluate the color stability for two different types of denture base materials against this external staining caused by (Tea & Cola). Sixty (60) samples were prepared, divided into two groups, 30 samples of heat cure acrylic material & 30 samples of flexible resin material (Valplast). Each group divided into three subgroups 10 samples in each, according to the type of staining solution that immersed in it, (synthetic saliva & tea), (synthetic saliva & Cola), and (synthetic saliva alone as a control). Tea & Cola were mixed with synthetic saliva in order to create intraoral environment to certain extent. Color measurement was made at Baghdad University, Collage of Engineering, using reflected spectrophotometer before immersion (at baseline) & after immersion, at intervals of (24 hours) & (1 week) respectively. The result was a highly significant difference between, heat cure acrylic & flexible resin a t baseline & the (flexible samples) were the higher value in discol oration than (heat cure acrylic samples) regardless the type of s taining solution. Maximum discoloration was seen in (synthetic sal iva & tea) solution for both denture base materials. Followed by (synthetic saliva & Cola) & (synthetic saliva alone) respectively . Both denture base mater ials had a color changes after immersion in staining solution (tea , Cola & synthetic saliva). The color changes, for two materi als, were increased with the increase of immersion time.

Electrospun Co/attapulgite/carbon nanofibers with the curved and multicomponent heterogeneous structures as excellent microwave absorbers

Multicomponent design based on magnetic carbon nanofibers (CNFs) composite is an expected approach to achieve excellent microwave absorption. Herein, the Co/attapulgite (ATP)/CNFs were prepared via electrospinning and vacuum calcination. The structure and electromagnetic (EM) properties of Co/ATP/CNFs impacted by the structure evolution of ATP at different calcination temperatures was investigated. At the calcination temperature of 550 °C, the optimal reflection loss (RL) reached −46.67 dB at 15.76 GHz in 2.5 mm thickness, and the effective absorbing bandwidth (EAB) reached 6.72 GHz at 3.0 mm thickness. ATP is introduced into Co/CNFs to construct the magnetic CNFs with various interfaces and bending structures, thereby enhancing dielectric loss and improving impedance matching, and finally realizing broadband absorption. This work presents a promising mentality to obtain environmental protection and efficient microwave absorbing materials (MAs).

Extension of Interaction Geometric Aggregation Operator for Material Selection Using Interval-Valued Intuitionistic Fuzzy Hypersoft Set

A recently emerged area of research named intuitionistic fuzzy hypersoft set (IFHSS) attempts to describe the internal limitations of intuitionistic fuzzy soft sets on multiparameter functions. A computation of such a type connects a power set of the universe with a tuple of sub-parameters. The strategy shows the allocation of attributes to their respective sub-attribute values in distinct groupings. The above features make it a unique methodical tool for handling obstacles of hesitation. The aggregation operators have an important role in the assessment of both types of potential and in identifying problems from their assessment. This research extends the use of the interaction aggregation operator to the interval-valued intuitionistic fuzzy hypersoft set (IVIFHSS), which is an entirely new structure generated through the interval-valued intuitionistic fuzzy soft set (IVIFSS). The IVIFHSS significantly condenses information that is inaccurate and imprecise compared to the frequently utilized IFSS and IVIFSS. Fuzzy reasoning is recognized as the prevalent strategy for improving imperfect data in decision-making processes. The core objective of the research is to develop operational rules for interval-valued intuitionistic fuzzy hypersoft numbers (IVIFHSNs), which promote interactions. This research is designed to broaden the utilization of the interaction geometric aggregation operator in the framework of IVIFHSS. In particular, we propose a novel operator known as the Interval-Valued Intuitionistic Fuzzy Hypersoft Interactive Weighted Geometric (IVIFHSIWG) operator. The aggregation operator indicates industry professional support for the implementation of a robust MCGDM material selection technique in order to address this need. The practical application of the intended MCGDM technique has been introduced in selecting materials (MS) for cryogenic storage containers. The influence advocates that the anticipated model is more operational and stable in demonstrating anxious facts based on IVIFHSS.

Influences of Growth Stage and Ensiling Time on Fermentation Characteristics, Nitrite, and Bacterial Communities during Ensiling of Alfalfa.

This study examined the impacts of growth stage and ensiling duration on the fermentation characteristics, nitrite content, and bacterial communities during the ensiling of alfalfa. Harvested alfalfa was divided into two groups: vegetative growth stage (VG) and late budding stage (LB). The fresh alfalfa underwent wilting until reaching approximately 65% moisture content, followed by natural fermentation. The experiment followed a completely randomized design, with samples collected after the wilting of alfalfa raw materials (MR) and on days 1, 3, 5, 7, 15, 30, and 60 of fermentation. The growth stage significantly influenced the chemical composition of alfalfa, with crude protein content being significantly higher in the vegetative growth stage alfalfa compared to that in the late budding stage (p < 0.05). Soluble carbohydrates, neutral detergent fiber, and acid detergent fiber content were significantly lower in the vegetative growth stage compared to the late budding stage (p < 0.05). Nitrite content, nitrate content, nitrite reductase activity, and nitrate reductase activity were all significantly higher in the vegetative growth stage compared to the late budding stage (p < 0.05). In terms of fermentation parameters, silage from the late budding stage exhibited superior characteristics compared to that from the vegetative growth stage. Compared to the alfalfa silage during the vegetative growth stage, the late budding stage group exhibited a higher lactate content and lower pH level. Notably, butyric acid was only detected in the silage from the vegetative growth stage group. Throughout the ensiling process, nitrite content, nitrate levels, nitrite reductase activity, and nitrate reductase activity decreased in both treatment groups. The dominant lactic acid bacteria differed between the two groups, with Enterococcus being predominant in vegetative growth stage alfalfa silage, and Weissella being predominant in late budding stage silage, transitioning to Lactiplantibacillus in the later stages of fermentation. On the 3rd day of silage fermentation, the vegetative growth stage group exhibited the highest abundance of Enterococcus, which subsequently decreased to its lowest level on the 15th day. Correlation analysis revealed that lactic acid bacteria, including Limosilactobacillus, Levilactobacillus, Loigolactobacillus, Pediococcus, Lactiplantibacillus, and Weissella, played a key role in nitrite and nitrate degradation in alfalfa silage. The presence of nitrite may be linked to Erwinia, unclassified_o__Enterobacterales, Pantoea, Exiguobacterium, Enterobacter, and Allorhizobium-Neorhizobium-Pararhizobium-Rhizobium.

Implikasi Hukum Terhadap Pembatalan Rencana Perkawinan Setelah Proses Mappetuada Dalam Adat Bugis Makassar

Introduction: In the marriage process of the Makassar Bugis community, it is not uncommon for one of the parties to cancel the marriage plan after the mapettuada/proposal procession. This is of course a polemic in itself because in the mapettuada process there is a certain amount of money and goods that have been handed over from the prospective groom (money panai') to the prospective bride. In this research, the researcher will discuss the legal implications of canceling marriage plans after the mappettuada procession in Bugis Makassar custom. &#x0D; Purposes of the Research: Provide an explanation regarding the legal implications of canceling marriage plans after the mappettuada procession in Makassar Bugis custom. &#x0D; Methods of the Research: Methods of the Research is normative legal research. The sources of legal materi als used are primary and secondary legal materials. The technique for collecting legal materials used in this research is through literature study, all materials obtained will be analyzed qualitatively and then presented prescriptively. &#x0D; Results Originality of the Research: Cancellation of marriage plans after the mappetuada process in Bugis Makassar custom requires the party canceling the marriage to bear the loss of costs incurred by the other party as regulated in the provisions of Article 1365 of the Civil Code.

Validation of a Bovine Viral Diarrhea Virus (BVDV) absolute quantification method by digital droplet PCR (ddPCR).

A increasingly common way for the diagnostics of viral agents is to carry out PCR from biological samples, which can detect their nucleic acid during the acute phase of the disease. Taking into account the need for quality control of PCR tests in laboratories accredited by ISO/IEC 17025:2017, we intend to carry out feasibility studies for the production of Reference Materials (MR) for these molecular tests, using BVDV in the matrix serum as a model. The first step for this goal was the validation of an analytical method for quantification of viral RNA to characterize the material under study. Primers and probe from a commercial qualitative assay kit designed for Real Time RT-PCR (VetMax Gold BVDV - Thermo Fisher) were used for quantification of BVDV by ddPCR. The technique was optimized and a Detection Limit of 13 copies/μL was determined, allowing a Quantification Limit of 38 copies/μL. The method showed to be linear over two orders of magnitude. The method will be used in the homogeneity study and long-term stability tests for the pilot batch of BVDV in Fetal Bovine Serum MR, a model for the production of MR intended for PCR of BVDV and other Flaviviridae.

Crystalline Porous Material-Based Nanogenerators: Recent Progress, Applications, Challenges, and Opportunities.

Nanogenerator (NG) is a potential technology that allows to build self-powered systems, sensors, flexible and portable electronics in the current Internet of Things (IoT) generation. Nanogenerators include piezoelectric nanogenerators (PENGs) and triboelectric nanogenerators (TENGs), convert different forms of mechanical motion into useful electrical signals. They have evolved and expanded their applications in various fields since their discovery in 2006 and 2012. Material selection is crucial for designing efficient NGs, with high conversion efficiencies. In the recent past, crystalline porous mat erials (metal-organic frameworks (MOFs) and covalent organic frameworks (COFs)) have been widely reported as potential candidates for nanogenerators, owing to their special properties of large surface area, porosity tailoring, ease of surface, post-synthesis modification, and chemical stability. The present organized review provides a complete overview of all the crystalline porous materials (CPMs)-based nanogenerator devices reported in the literature, including synthesis, characterization, device fabrication, and potential applications. Additionally, this review article discusses current challenges, future directions, and perspectives in the field of CPMs-NGs.

Hambatan Pembelajaran Bahasa Arab pada Jenjang SMA di Jawa Barat

Based on Government Regulation No. 4 of 2022, learning Arabic as a foreign language in high school is part of the mandate of Law No. 20 of 2003. In order to be relevant to the needs of the times, evaluation and development of the Arabic curriculum is a necessity. This study aims to identify barriers to learning Arabic in high schools so that they can be utilized by the government and related parties in developing the Arabic curriculum. This research uses a descriptive quantitative approach with the technique of distributing questionnaire instruments with a Likert scale. Respondents in this study were high school Arabic teachers in West Java. The data obtained were processed using SPPS. Based on the research, it is known that the obstacles in high school Arabic learning in West Java exist in eight factors with two classifications 1) rated significant on the factors of teaching materials (MA), teachers (G), curriculum (K), facilities (F), and teaching material sources (SB), with an average score of 2.55, 2.61, 2.71, 2.96, and 3.18; 2) rated very significant on the factors of students (S), teaching methods (MB), and government policies (KP) with an average score of 3.25, 3.29, and 3.46.

Assessing Factors Affecting Construction Equipment Productivity Using Structural Equation Modeling

The performance of the construction industry can be improved by understanding the factors that affect the productivity of its equipment. A hypothetical framework was used to analyze six vital construction equipment parameters to understand how they affect productivity in construction projects. Data collected through a survey of 110 respondents in the construction industry were analyzed using an exploratory factor analysis (EFA) and structural equation modeling (SEM). The final model obtained using SEM consisted of 31 attributes from six construction equipment productivity factors, namely management (MG), materials (MT), human (HM), technical (TN), environmental (EM), and other factors (OT). Construction equipment productivity was found to be significantly influenced by MT and OT in construction projects. This was mainly because of their corresponding subfactors, such as operating life and equipment age, and the occurrence of accidents during construction. Consequently, based on survey feedback from various construction professionals, present gaps in construction equipment productivity were analyzed, and recommendations were made to overcome the main limiting factors under MT and OT. This study identified and quantified the interrelationships between various construction equipment productivity constraints. Therefore, the results can help experts and specialists better comprehend how to overcome delays due to idle time and improve construction equipment productivity.

BIOPOLYMER ACTIVE MATERIALS FOR FOOD

Background. The aim of the work was to discuss solutions used in the development of biopolymer ac tive materials for food for the food industry. Biopolymers such as polysaccharides, proteins and lipids are increasingly used in active food packaging materials due to their biodegradability and biocompatibility. In addition, they are used as carriers of various types of functional substances, e.g. antioxidant substances and agents inhibiting the development of pathogenic microorganisms, mainly to increase the safety of food products. In contrast to packaging made of biopolymers, the use of polymeric materials from non renewable raw materials has a significant impact on the environment and a negative impact on the accu mulation of packaging waste. Edible materials, utilized in the form of films or coatings, can extend the quality and shelf life of food. In addition, we can observe nowadays the use of gentle food processing methods, as well as new packaging materials derived from renewable raw materials. Results and conclusion. The key area of development is currently new strategies of active packaging in which natural substances can be used. Intensive scientific research is being carried out to create active packaging with improved mechanical, barrier, antioxidant and antimicrobial properties. The practical use of active packaging can have an impact on the reduction of food waste, and reducing this phenomenon is one of the goals of the circular economy model, which has also been included in the European Green Deal. This publication is a review of current research achievements regarding the use of food packaging materi als based on biopolymers, along with a discussion of various types of active substances and their impact on the durability of selected food products.

Halogen's effect on the photoelectric properties of two-dimensional organic–inorganic hybrid perovskite (MTEA)2MAPb2X7 (X = Cl, Br, I) with a Ruddlesden–Popper structure

Recently, a two-dimensional (2D) Ruddlesden–Popper (RP) organic–inorganic hybrid perovskite material (MTEA)2MAn−1PbnI3n+1 (n = 1–6) has attracted great attention, and experiments have reported that the thicker material (MTEA)2(MA)4Pb5I16 (n = 5) perovskite material has excellent environmental stability and improved photovoltaic stability. However, considering that the thickness of the material and the substitution of halogen anions have influence on photoelectric properties of materials. In this paper, we study the photoelectric properties of 2D RP organic–inorganic hybrid perovskite (MTEA)2MAPb2X7 (X = Cl, Br, I) (n = 2) based on the density functional theory. The calculated results show that as the halogen in (MTEA)2MAPb2Cl7 varies from Cl to I, the bandgap decreases, the absorption intensity increases, and the exciton binding energies decrease, which is significantly higher than that of MAPbI3 crystal photovoltaic materials, indicating that the material (MTEA)2MAPb2X7 (X = Cl, Br, and I) (n = 2) is more suitable as candidates for luminescent devices. Our work provides opportunities and challenges for the application of 2D RP organic–inorganic hybrid perovskites in luminescent devices.

Development and modification of the natural polymers by converting them into nanobiocomposite

The main target ofTthis study is to develop an antibacterial chitosan nanocomposite fabric among in situ crated silver nanoparticles utilizing Vitex leafTextract, which i s amedicinal herb. The CNCFs were evaluated using scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy,Xray diffraction (XRD), and antimicrobial testing. Additionally, these CNCFs have excellent antibacterial characteristics. These CNCFs could be used in medical applic ations like surgical aprons, wound cleansing, wound dressing, and hospital bed mat erials, as they were manufactured utilising a simple and environmentally acceptable approach.

Эффективность высокодозовой внутривенной иммуноглобулинотерапии у детей с расстройствами аутистического спектра, ассоциированными с генетическим дефицитом ферментов фолатного цикла

Обоснование. Ранее неоднократно сообщали об эффективности внутривенной иммуноглобулинотерапии у некоторых детей с расстройствами спектра аутизма без уточнения критерия отбора потенциальных ответчиков на иммунотерапию. Цель исследования: оценить эффективность и безопасность высокодозовой иммуноглобулинотерапии при расстройствах аутистического спектра у детей с генетическим дефицитом фолатного цикла. Материалы и методы. Исследуемую группу составили 78 детей в возрасте от 2 до 10 лет, которые принимали в/в иммуноглобулин в дозе 2 г/кг/мес на протяжении 6 месяцев. В контрольную группу вошли дети аналогичного возрастного и гендерного распределения, которые получали лишь немедикаментозную реабилитационную поддержку. Выявляли замены нуклеотидов MTHFR677 С &gt; Т, MTHFR1298 А &gt; С, MTRR A/G и MTR A/G в различных комбинациях методом полимеразной цепной реакции. Динамику психических симптомов оценивали при помощи шкалы Aberrant Behavior Checklist. Результаты и обсуждение. Достигнуто полное устранение фенотипа расстройств аутистического спектра у 21 пациента и выраженная положительная динамика еще у 33 детей исследуемой группы (p &lt; 0,05; Z &lt; Z0,05). Параллельно отмечалась положительная динамика со стороны других клинических проявлений фенотипа дефицита фолатного цикла: PANDAS (у 19 из 21), эпилептического (у 29 из 36) и кишечного (у 49 из 68 детей) синдромов (p &lt; 0,05; Z &lt; Z0,05). Не отмечено положительной динамики со стороны симптомов поражения пирамидных путей (p &gt; 0,05; Z &gt; Z0,05). Отмечено снижение суммарной вирусной нагрузки и повышение количества естественных киллеров в крови (p &lt; 0,05; Z &lt; Z0,05). Почти полное устранение симптомов лейкоэнцефалопатии в исследуемой группе отмечалось у 29 пациентов, а выраженная положительная динамика — еще в 24 случаях (p &lt; 0,05; Z &lt; Z0,05). Выводы. Внутривенный иммуноглобулин оказывает комплексное положительное воздействие на проявления генетического дефицита фолатного цикла, включая расстройства спектра аутизма, экстрапирамидные нарушения, кишечный синдром, эпилептиформную активность мозга, иммунодефицит и лейкоэнцефалопатию.

Competição Interestatal, Componentes Críticos e Cadeias de Suprimentos

O presente artigo analisa as contradições da manutenção da ordem liberal em um cenário de retorno de competição entre grandes potências. Apesar da atual crise na ordem liberal, entende-se que tal crise seja acompanhada também de um movimento de mudanças materiais na estrutura sistêmica. Em termos materiais, a possibilidade do fim do comando dos comuns e da existência de zonas contestadas cede espaço ao retorno de esferas de influência, com implicações diretas para a ordem internacional. Neste sentido, analisa-se a relação entre mudanças na ordem liberal e o crescente processo de endogenização de componentes críticos e de cadeias de suprimentos globais por parte dos Estados Unidos e China, a partir de documentos oficiais, relatórios e aspectos empíricos. Em suma, a crise da ordem liberal é fruto de mudanças materiais do sistema internacional e as diferentes respostas de diferentes países frente ao aumento da competição interestatal terão efeitos duradouros na própria reordenação da ordem vindoura.

Аналіз клінічних, генетичних і гендерних детермінант неефективного лікування в пацієнтів з артеріальною гіпертензією

Актуальність. Поліморфізм промоторної ділянки гену альдостеронової синтази CYP11B2 -344C/T (rs1799998) вiдiграє одну з ключових ролей в модуляції об’єм- і натрій-залежних механізмів артерiальноï гiпертензiï (АГ). Пошук маркерів ефективності антигіпертензивної терапії (АГТ) обумовлений частим недосягненням цільових рівнів АТ незалежно від характеру, дози антигіпертензивних препаратів (АГП), прихильності пацієнта до лікування.Мета. Метою роботи було визначити роль поліморфізму -344С/Т гену CYP11B2 в поєднанні з традиційними факторами ризику (ФР) в контролі артеріального тиску у пацієнтів з АГ ІІ-ІІІ ст.Матеріали та методи. Обстежено 93 пацієнта з АГ ІІ-ІІІ ст. Пацієнти були розділені на 2 групи: 1 гр . (n=38) – пацієнти з цільовим рівнем АТ на тлі АГТ, 2 гр. (n = 55) – пацієнти з АТ≥135/85 мм рт. ст. Всім пацієнтам виконували стандартні клініко-лабораторні дослідження, оцінювали ФР, виконували генотипування методом полімеразної ланцюгової реакції з визначенням довжини рестрикційних фрагментів та визначенням гаплотипу -344С/Т CYP11B2.Результати. Групи пацієнтів з різними рівнями АТ були порiвнюванi за частотою модифікованих ФР, кількісним та якісним складом АГТ. У групі осіб з неконтрольованою АГ частка курців, а також пацієнтів з супутнім цукровим діабетом 2 типу була достовірно вище в порівнянні з пацієнтами 1 гр. Аналіз частот алель них варіантів гену -344С/Т CYP11B2 показав, що частка пацієнтів, що мають Т- монозиготний генотип, була достовірно вище серед пацієнтів 2 гр.Висновок. Наявність Т-алеліі TТ-генотипу -344С/Т CYP11B2 в поєднанні з множинними ФР асоціювалася з недостатнім контролем АТ , незалежно від АГТ.

Optical investigations of Ag/CeO2 nanocomposites

Silver/ceria (Ag/CeO2) nanocomposites were pre- pared from Ce(NO3)3 6H2O, AgNO3, and NH4OH with different molar ratios through a hydrothermal process, and then were completed by carrying out the precursors calcining at 750 °C for 2 h under air atmosphere. Below 1 % of Ag con- centration in Ag/CeO2 nanocomposites, the Ag crystalline structure does not appear. XRD and TEM results show evidence of two different effects (the agglomeration and the barrier effects) governing the process of crystal growth. HR- TEM image and EDX elemental analysis of the Ag/CeO2 nanocomposite confirmed that isolated Ag nanocrystals are dispersed in the CeO2 matrix. The red shifts are attributed to the quantum confinement effect and the valence change of the Ce+ ions. Ag nanoparticles can help to improve the absorption of visible light, enhancing the absorption intensity of Ag/CeO2 nanocomposite. These results are of great significance for the control of microstructure, crystallinity, and applications for the development of nanocomposite ma terials.