Biological Balance Research Articles

Assessment of lake Markakol’s physical and chemical condition with consideration of eutrofication

The study was conducted in 2023 and comprised a comparative assessment of the state of Lake Markakol’s aquatic ecosystems in surface and bottom water strata. The analysis of bottom water temperatures showed correlation between this parameter and dissolved oxygen concentrations, indicating that pollution caused by organic impurities leads to lake eutrophication, in turn, pro-pelling the extinction of aquatic life. Although the main water physicochemical parameters of Markakol Lake correspond to the oligotrophic type, the shifts in dissolved oxygen and phos-phate content, as well as growth of aquatic vegetation indicate its transition to the mesotrophic type. Higher phosphate content in water is a consequence of pollution disturbing the biological balance, as well as stimulating the reservoir’s eutrophication and increased biological productivity, i.e. algal bloom. In addition, phosphate ions serve an informative indicator of Hazard Class 3 (organoleptically hazardous) anthropogenic pollution. Based on the correlation factor (r), two statistical models were considered for the target lake: 1) Water Pollution: nutri-ent concentrations depending on surface and bottom water temperatures (Model 1); and 2) changes in Water Pollution Indices (biogenic, heavy metals, mean) because of air temperature growth due to global warming of 0.25°C/decade (Model 2).

Effects of biological activity and feed water characteristics on the flux stabilization of gravity-driven membrane: Perspectives from biocake structure and mass balance

Gravity-driven membrane (GDM) filtration could be operated without any cleanings, has captured increasing attentions in decentralized drinking water treatment. However, the mechanism of flux stabilization during GDM long-term filtration was not comprehensively understood. This study aimed at elucidating the mechanism of flux stabilization in GDM process from the perspective of biocake layer structure and organic mass balance. The results revealed that bacteria played the fundamental role in flux stabilization and level of GDM by both engineering a rough and heterogeneous structure of biocake layer, and also hydrolyzing the organic matters on the membrane surface to maintain the dynamic balance of total organics in biocake layer. Furthermore, protozoa & metazoa would not influence the flux stabilization of GDM, but benefited to improving the stable flux level (from 4.51 L m−2h−1 to 8.68 L m−2h−1) by engineering a more porous and permeable biocake layer through the bio-predation. Regarding non-biodegradable organics (e.g., humic substance), it could be hydrolyzed into low-molecular organics to penetrate the membrane to reduce organics accumulation in the biocake layer, and achieved the mass balance, resulting in flux stabilization (7.54 L m−2h−1). However, easily biodegradable organic (e.g., sodium acetate) would promote excessive microbial growth and EPS secretion, leading to a relatively lower stable flux of GDM system (5.75 L m−2h−1). Therefore, the flux stabilization of GDM process was determined by the biological action-based dynamic balance of both the structural properties and organic mass in the biocake layer. Overall, these findings will be beneficial to promote GDM extensive application in the complex decentralized water supply.

Exploring the Genome-wide Expression Level of the Bacterial Strain Belonging to Bacillus safensis (MM19) Against Phomopsis viticola.

Rhizobacteria have the ability to compete with pathogenic microorganisms and contribute to plant immunity and defense mechanisms. Their growth and survival in the rhizosphere ensure a biological balance in favor of the host plant. The differential gene expression profiles of B. safensis (MM19) revealed significantly increased expression of prominent genes related to thiamine biosynthesis involving various metabolites and enzymes that participate in the suppression of mycelium growth and pathogen inhibition. Correspondingly, the expression of three major genes (HOG1, FUS3, SGI) involved in the virulence of P. viticola was assessed using qPCR analysis. HOG1 was the highest expressed gene in the pathogen when it was co-cultivated with MM19. Based on these findings, we performed molecular docking and dynamics analysis to explore the interaction between HOG1 and thiamine, as well as expression network analysis constructed using Cytoscape. The functional genomic data related to thiamine biosynthesis and the corresponding pathways ensure a priming role in the antagonistic behavior of B. safensis (MM19) against P. viticola as a support for plant immunity.

The Expression of Melanin Concentrating Hormone and Corticotrophin Releasing Hormone Genes in a Stress Model Rats Receiving Formononetin

Background: Stress is an aversive stimulus that disrupts the organism's biological balance. Formononetin, an isoflavone, has been implicated in anxiolytic responses. However, the intra-hypothalamic molecular mechanisms by which formononetin controls stress remain unknown. Objectives: This study aimed to investigate the impact of formononetin on hypothalamic Mch and Crh gene expression in a rat model of stress. Methods: Male Wistar rats (200 - 220 g) were used. Thirty minutes before exposure to stress, the rats were injected with either saline or formononetin. Two hours after stress induction, hypothalamic samples were dissected and stored at -70°C until the measurement of Mch and Crh gene expression using real-time PCR. Results: Stress induction led to a significant increase in Mch and Crh mRNA levels. However, animals receiving formononetin showed a significant reduction in Mch and Crh mRNA levels compared to the stressed rats. Conclusions: Formononetin may exert anxiolytic effects by down-regulating intra-hypothalamic CRH and MCH signaling pathways.

Incorporating seasonality, predictability, and modularity into the optimization of biodiversity conservation for ecological networks

Improving the connectivity of ecological networks (ENs) is a proven strategy for biological conservation. However, without a clear understanding of animal movement, research on ENs may not provide a sufficient reference for maintaining biodiversity. To address this gap, we embraced central concepts of movement ecology and conducted a study in the Qilian Mountains. The predictability and seasonality of environmental conditions were combined to identify ecological sources with rich temporal niches and improve the informed preference character of resistance surface. Then, we constructed ENs with six dispersal thresholds. Further, integrating modularity and circuit theory, we pinpointed priority areas for restoration within the ENs. Our findings indicated that the eastern part of the Qilian Mountains showed higher biodiversity suitability, with terrain being the primary factor limiting dispersal. Additionally, comparative analyses demonstrate that the new method for measuring biodiversity from the perspective of temporal niche is reliable and better aligns with the needs of biodiversity conservation. In light of emerging challenges within the study area, where apex predators seriously suppress the populations of some smaller predators, we propose a novel conservation idea that emphasizes the strategic retention and removal of barriers to maintain biological balance. This study enriches methodologies for biodiversity measurement, provides forward-looking conservation strategies, and offers practical contributions toward mitigating biodiversity loss.

Research on the safety risks of microwave irradiation on motion balance perception in electric power environments

To the microwave irradiation safety hazards caused by the co-construction of towers in smart grids, this paper investigates the effects of microwave irradiation in the power environment on the biological motion balance perception function. Firstly, simulation of microwave signals in the electric power environment, i.e., low-frequency harmonics and high-frequency carriers, were realized by signal modulation and applied in four types of behavior testing scenarios. Then, determining rats as target organisms to replace workers and randomly dividing into groups in proportion: open field, rotating rod fatigue, beam walking and forced swimming. Configuring radar with various parameters to match the electric power irradiation scene and stimulate rats, monitoring the abnormal behavior by image processing module, including posture, motion trajectory, distance, and other features. The experimental result showed that exposed to microwaves induce rats motor ability decline, balance perception imbalance, together with paralysis within long-term exposure, and its locomotor activity, coordination, posture control and reaction time all exhibit varying degrees of weakening. These findings indicate that microwave irradiation in electric power environment may pose significant health and safety risks for worker.

O-099 Implantation 2024 - what do we know?

Abstract Three major factors are involved in implantation, the embryo, the endometrium and the microbiome. The interactions between these major participants need to, support normal pregnancies and reject abnormal ones and have an appropriate pro/anti-inflammatory response to the genital tract microbiome. Implantation is controlled by a series biological checks and balances in the context of an endometrium that regenerates monthly. Our understanding of these checks and balances has been advanced with the use of sequencing technologies. • The high incidence of aneuploidy in early human embryos has been described in detail with low-coverage sequencing- based PGT-A. • The contribution of karyotype abnormality to miscarriages has been clarified with the use of a microarray-based comparative genomic hybridisation and the cell free DNA. • New insights into endometrial composition have been made through single cell sequencing that has revealed the existence of new subsets of cells at the maternal fetal interface. • The genital tract microbiome has been investigated using high-throughput next-generation sequencing of bacterial 16S rRNA genes. This rich tapestry of information has revealed the complexity of cellular and molecular process controlling implantation. The challenge is to identify specific mechanisms and therapeutic targets for couples suffering reproductive failure.

The Future of Biofertilizer use in Safe Agriculture

An essential part of a nation's economy is agriculture. Chemical fertilizers and pesticides are widely used in intensive agriculture techniques nowadays to boost crop yield and satisfy the growing global population's nutritional needs. Yet, it has been discovered that increasing urbanization, reduced agricultural lands, sharp climate changes, and widespread use of agrochemicals in farming techniques lead to environmental disruptions and public health risks that compromise agricultural sustainability and food security. Agrochemical overuse is also causing agriculture soils to continuously lose their biological and chemical balance, quality, and physical attributes, as well as their biological health. The potential for plant-associated microorganisms to address these issues and play a critical role in plant growth is immense. With their abilities to promote plant growth, plant-associated bacteria hold great promise for resolving these issues and are essential for increasing agricultural production and biomass in both greenhouse and field settings. Improved nutrient availability (i.e., N, P, K, Zn, and S), phytohormone regulation, biocontrol of phytopathogens, and mitigation of biotic and abiotic stresses are some of the advantageous processes of improved plant growth. Microorganisms and plants interact to support sustainable agriculture, and these microbes may be essential ecological engineers that reduce the demand for chemical fertilizers. Among the steps involved in this process are the production of the inoculum, the inclusion of cell protectants such as glycerol, lactose, and starch, an acceptable carrier material, optimal packing, and the most efficient delivery modalities. Bio-fertilizers are some of the best agricultural tools available today. It's a gift from modern agricultural science. On agricultural land, biofertilizers are applied in lieu of traditional fertilizers. Conventional fertilizers contain green manure, compost, and household waste. These are less effective than chemical fertilizers. Farmers so often try to employ chemical fertilizers in the field to encourage crop development. But it's clear that chemical fertilizers are bad for the environment. They can disperse substances that cause cancer and are accountable for soil, air, and water pollution. Furthermore, they can eventually deplete the soil's fertility. Scientists have created biofertilizers in an attempt to reduce pollution and enhance everyone's health organically. The microorganisms in biofertilizer assist the host plants in maintaining physiologic balance, supporting proper development and growth, and obtaining an adequate quantity of nutrients. Living microorganisms are used to create biofertilizers. Only specific microorganisms that aid in the growth and reproduction of plants are used. There are many different kinds of microorganisms used in biofertilizers. being an essential component of farming organically. Since biofertilizer is a fundamental component of organic farming, it is crucial for preserving soil sustainability and fertility over the long term.

Spatio-temporal variation in the zooplankton community of the Zahara-El Gastor Reservoir (Cádiz, Spain)

Reservoirs play a crucial role in providing essential social and economic services at different scales. However, in recent years, anthropogenic impacts such as climate change and pollution have increased, affecting this type of ecosystem. Zooplankton communities are fundamental for regulating the biological balance in these environments, so it is essential to understand the processes that affect their dynamics. This study investigated the seasonal and spatial variation in species abundance of the zooplankton community of the Zahara- El Gastor Reservoir, Cádiz, Spain. This reservoir it is located in the Guadalete-Barbate River basin and is included in the Sierra de Grazalema Natural Park, the area with the highest rainfall in the Iberian Peninsula. Water and zooplankton samples were collected monthly over a year at four sampling sites located along the reservoir’s long-axis to determine its physicochemical characteristics and zooplankton species composition. The reservoir presented a mesotrophic state and a monomictic thermal cycle, with the mixing period occurring in winter. Temperature, water depth and volume, phosphates, carbonates, pH, and conductivity were the main environmental variables that affected the seasonal and spatial patterns of the zooplankton community. Rotifers presented the highest number of species and were predominant at the tail of the reservoir, especially in autumn, where Polyarthra spp. reached high densities. Relatively low densities of copepods were found throughout the year. Small branchiopods and cyclopoids were predominant in summer, while Daphnia longispina was linked to the colder seasons. The zooplankton community of the Zahara-El Gastor Reservoir reflected changes in the trophic state of the reservoir both in space and time.

Pelizaeus disease Merzbacher like: About an observation

Pelizaeus-Merzbacher disease (PM) is an X-linked leukodystrophy causing developmental delay, nystagmus, hypotonia, spasticity and variable intellectual deficit. Three forms are described according to age of onset and severity: neonatal forms (+ severe), classical form (moderate, first 2 months of life) and transient form (the least serious 2-3 years). Prevalence is estimated at 1/400,000. We report the sighting of a 12-year-old and 8-month-old girl, with no significant history, from a non-indigenous marriage. Presents since the age of 5 months a bilateral horizontal nystagmus, myoclonia and a psychomotor retardation and whose examination revealed a pyramidal syndrome and a discreet hepatomegaly. The biological balance objectivéhyperlactatemie, hyperammoniémieet Chromatography of Amino Acids in urine showed an increase in glycine, alanine and tyrosine with Amino Acid chromatography in the blood and chromatography of Organic Acids normal. MRI brain objectified a demyelinating aspect of the white substance and atrophy of the corpus callosum. PEV pathological retina-cortical conduction, PEA altered left, Muscle biopsy absence of shredded red fibers and genetic study confirms PelizaeusMerzbacher disease like.

Summer cover crop and temporary legume-cereal intercrop effects on soil microbial indicators, soil water and cash crop yields in a semi-arid environment

ContextFew studies have investigated summer cover crops as a replacement for bare fallow in semi-arid temperate regions, and summer cover crop impacts on soil biological function, water balances and subsequent winter crop yields in these regions remain largely unknown. ObjectiveThe 4-year field study aimed to determine the consequences of replacing a summer fallow with a summer growing cover crop on soil function, water balances and subsequent winter cash crop yields in a semi-arid region (486 mm mean annual rainfall) of the Australian southern cropping zone. MethodsA canola (Brassica napus)-wheat (Triticum aestivum L.) rotation with summer fallow was compared to the same rotation with either i) a single species (buckwheat, Fagopyrum esculentum L.) summer cover crop; ii) a four-species mixed brassica + cereal summer cover crop or iii) a cropping sequence with a temporary legume intercrop in the wheat phase of the rotation. Cover crop biomass production, soil water to a depth of 90 cm at cash crop sowing, crop yields and soil functional indices were quantified. ResultsCover crops produced 500–700 kg biomass ha−1 in the 2020 and 2021 seasons and 1000–2400 kg biomass ha−1 in 2022. The four-species mixed cover crop significantly lowered soil water (around 30 mm; P < 0.05) at the time of sowing the cash crop compared to the control and resulted in 15% reduction (P = 0.12) in canola seed yield in 2020, but no significant effect of cover crops of soil water and mineral N at sowing, or cash crop yields, were observed in subsequent seasons. In 2021 the temporary vetch intercrop produced > 1000 kg ha−1 biomass over 9 weeks, and led to a (non-significant) 10% wheat yield reduction. There was no significant effect of cover crop or temporary intercrop treatments on soil functions in the 2020 or 2021 seasons, but activities of several soil enzymes (leucine aminopeptidase, arylsulfatase and B-glucosidase; P < 0.05) and water-soluble carbon (P = 0.059) were significantly higher in the summer cover crop plots compared to control and intercrop plots in March 2022 following termination of the cover crops. These changes coincided with a significant increase in saturated hydraulic conductivity in the four-species cover crop plots in March 2022 compared to control plots. ImplicationsThe study did not provide any compelling evidence for benefits of summer cover crops over fallow in the short term (3–4 years). The relatively low cover crop biomass production over the 4-year study suggests summer cover crops are unlikely to substantially improve soil carbon levels in temperate, semi-arid cropping systems.

Bio-safe drinking water with or without chlorine: a review

Abstract Drinking water biosafety has become an increasing concern for public health. Chlorination is widely used as the main disinfection strategy worldwide but has clear and well-known byproduct issues. The Netherlands has successfully demonstrated unchlorinated approach for almost 20 years but has not been widely adopted by other countries. To chlorine or not chlorine is becoming a critical question in front of all the water utilities. This review aims to provide a good overview of current biosafety management strategies, their disadvantages, as well as the latest developments and future trends. Firstly, the advantages and deficiencies of conventional disinfection and non-disinfection were discussed. Secondly, the commonly used and promising methods for biostability assessment are described. Finally, critical views on the strategy selection for ensuring drinking water biosafety were discussed. It is recommended to achieve both biological and chemical balance by removing pathogens while minimizing the organic matter and dosing a minimum level of disinfectants, which would represent the compromise choice between the current chlorine-based disinfection and chlorine-free strategy. It's worth noting that the complexity of ensuring biosafety lies in the variations among different regions, the selection of suitable methods should be tailored to specific situations on a case-by-case basis.

Nootropic Effect of Celastrus paniculatus on Restraint Stress Induced Behavioral and Biochemical Changes in Wistar Albino Rats

Background: Stress most certainly plays a significant role in everyday life. The natural biological balance is disrupted by stressful events, which has a negative impact on normal physiological and psychological function. In the last 20 years, there hasn't been much advancement in the creation of medications, efficient drug delivery systems, or treatments for Central Nervous System (CNS)-related issues. The ancient Ayurvedic herb Celastrus paniculatus (CP) has been used for millennia as a memory booster, anti-inflammatory, analgesic, sedative, and antiepileptic drug. The neuropharmacological effects of the seed extract have been thoroughly studied in a variety of laboratories, and there are numerous findings that support their nootropic function. Aim: To investigate the effects of Celastrus paniculatus against restraint stress, induced behavioral and biochemical changes in male Wistar albino rats. Methods: The animals were divided into five groups. Each group includes six animals. Group I: Control, Group II: Restraint stress (6hrs for 21 days), Group III: Celastrus paniculatus (400mg/kg, orally) and restraint Stress, Group IV: Celastrus paniculatus alone, Group V: Vehicle. The behavioral changes are assessed by Place Preference test, Elevated plus Maze. Animals were euthanized and the discrete regions of the brain were homogenized for biochemical estimation, such as Catalase, SOD, LPO, GPX, GSH, Vitamin C. Animal’s cognitive and anxiety-related behavior and antioxidants were examined the following day after the stress procedure and treatment. Results: Following a period of 21 days of being subjected to restraint stress, the behavioral changes were reduced in stress group when compared to control group, and also the levels of Lipid peroxidase significant (P&lt;0.05) increased in the restraint stress group as compared to the control group. Enzymatic antioxidants such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), Vitamin C, Glutathione experienced a significant (P&lt;0.05) reduction in the restraint stress group as opposed to the control group. Conclusion: Chronic restraint stress has adverse effects on the animal’s cognition, memory, and learning abilities as well as anxiety-related behavior. However, Celastrus paniculatus treatment shows enhanced performance in anxiety-related Behavior and antioxidant properties.

Seasonal Variation in Thermal Biology and Water Balance in a Year-Round Active Neotropical Treefrog, Scinax fuscovarius

Seasonal Variation in Thermal Biology and Water Balance in a Year-Round Active Neotropical Treefrog, Scinax fuscovarius

ENVIRONMENTAL EDUCATION IN SCHOOLS AND THE EDUCATOR AS A CRITICAL SUBJECT OF THEIR PERFORMANCE

In the last decades of the 20th century, concerns about the Environment have intensified. Various sectors of society already realize the importance of knowledge and sustainable growth for a better environmental balance on the planet we live on. The environmental issue has been considered increasingly urgent for society because the future of society depends on the relationship between man and nature in biological balance. Environmental Education, understood as an educational and dialogical process, which must contemplate the epistemic subject, in this approach must be worked in a way that privileges the individual for the construction of an ethical morality capable of ensuring a stable relationship with the socio-environmental atmosphere.

Economic efficiency of growing winter barley in the Southern Steppe zone of Ukraine under the influence of variety and biological preparations

The relevance of the article lies in the determination of the most optimal varieties and biopreparations that ensure high yield and profitability of growing winter barley. The purpose of the research was to determine the main indicators of the economic efficiency of the elements of the technology of growing winter barley for foliar fertilizing of plants in the main periods of vegetation with biological preparations. When conducting research, generally accepted methods were used: systematic approach and systematic analysis, field and statistical. The article provides data on the economic efficiency of the elements of winter barley cultivation technology based on the results of research conducted with four varieties of the crop in the conditions of the Educational and Scientific Practical Center of the Mykolaiv National Agrarian University in 2016-2019. The impact of variety selection, foliar fertilizing with modern bacterial preparations on the main indicators of the economic efficiency of growing winter barley was analysed. It was established that the cost of the grown grain depended on and changed under the influence of the features of the variety, biological preparation and the number of fertilizing. Obtaining the maximum cost of grain ensured the cultivation of winter barley varieties Valkyrie and Oscar for carrying out foliar feeding in the phase of tillering and emergence of plants in the tube with the biological preparation Organic Balance: 26.5 and 26.3 thousand hryvnias/ha, respectively. The same varieties, in case of two-time fertilization with Azotophyt, formed the value of grain at 25 thousand UAH/ha, and in controls – 20.1 and 21.1 thousand UAH/ha, respectively. Indicators of conditional net profit and level of profitability also changed with a similar dependence. Values of the cost of growing a unit of production of winter barley had the opposite dependence. The obtained scientific research results and definitions will contribute to the cultivation of winter barley on the basis of resource conservation with the use of biological preparations to increase productivity and the main factors of economic efficiency

ANALYSIS OF THE STATE AND SETTING OF THE TASK REGARDING OUTPUT ASSESSMENTNITROGEN DIOXIDE (NO2) WITH EXHAUST GASES TRACTOR ENGINES

By the end of the 20th century, humanity faced the problem of the need to protect itself. The action of a number of complex interrelated factors has led to a violation of the biological balance in our world, in the system man - nature. The rapid development of scientific and industrial civilization, the demographic explosion, the insufficient requirements for environmental protection that were imposed on the developing industry in the past, the gradual reduction of free, uncultivated and forest territories, as well as the unplanned development of urban areas contributed to the disappearance of some forms of flora and fauna. Faced with the threat of gradual extinction, man finally understood that in order to protect the biological balance in nature, it is necessary to start a general war for the purity of air, water and land. In the international arena, this problem is recognized as one of the important ones. The appearance of smog was first recorded in Los Angeles in the late 1940s. Its cause was excessive air pollution by industrial and transport emissions. In 1952, the phenomenon of smog was observed in London. It caused catastrophic consequences - about 4,000 people became its victims, who died due to an increase in the number of respiratory diseases under the influence of smog. The exhaust gases produced by the combustion of the air-fuel mixture in the internal combustion engine contain pollutants such as carbon monoxide (CO), nitrogen oxides (NOx), hydrocarbons (HC) and particulate matter (PM), which are very harmful to humans and the environment. Nitrogen oxides, which are formed at high temperature and excess oxygen, are especially toxic. Both of these conditions are present in the process of fuel combustion in any engine, but especially a lot of them are formed in a diesel engine, since the air entering its cylinders is not throttled and there is always an excess of it. In addition, a high temperature occurs in the combustion chambers, and the higher it is, the more nitrogen oxides are formed. For these reasons, a diesel engine emits much more nitrogen oxides in the exhaust gases compared to a gasoline engine.

ROLE OF SADVRITTA IN LIFESTYLE DISORDER

The incidence of lifestyle diseases associated with CVD is high on the rise. CVD continues to be the major cause of mortality representing about 30% of all deaths worldwide. With rapid economic development and the westernization of lifestyle in the past few decades, the prevalance of these diseases has reached an alarming proportion among Indians in recent years. Covid 19 and its impact on today's world is a challenge ahead. Cer-tain conduct such as wearing masks, sanitizing hands and surfaces, and social distancing is taken as major guidelines for the prevention of the spread of Covid 19. Acharya Charak has given a comprehensive account of the mode of a healthy and happy life. Acharya Sushruta considers a man healthy only when he is in a state of biological balance and enjoys sensorial, mental, and spiritual wellbeing. Such a state of health can be achieved only by observing the rules of good conduct i.e., The mind and the body continuously interact and influence each other under the influence of environmental factors. If this is not controlled and moderated appropriately, it gives rise to pathological problems. Sadvritta is similar to the idea of Yama and Niyama described in the context of Yoga. Different kinds of emotions such as Kama, Krodh, etc. arise as a consequence of Manasadosavaisamya. Through the practice of Sadvritta, the sattva Guna prevails over Rajas and Tamas and thus preserves good phys-ical and mental health.

Robust Polypyrrole@Halloysite Nanotube-Coated Polyurethane Sponge as Multifunctional Flexible Sensors

Polyurethane (PU) sponge with high elasticity and reproducibility shows promising application in flexible electronic devices. However, the poor conductivity and high flammability limit its application field, which also pose a potential threat to human health. Here, a flexible sponge sensor based on PU and polypyrrole-wrapped halloysite nanotubes (PPy@HNTs) was successfully fabricated by the dip coating technology. The PPy-modified HNTs showed strong binding ability on the PU sponge by employing N,N-dimethylformamide (DMF) as an interfacial solvent. PPy@HNTs can well adhere on the surface of the PU sponge, which endow excellent structural stability to the flexible sponge sensor after 5000 cycles. The response and recovery times during the sensitivity experiment of the flexible sponge sensor are 265.63 and 265.62 ms, respectively. The flexible sponge sensor can effectively detect various physical activities, such as walking, facial expression, and gesture. It can be used as an analytical balance for quality monitoring. Moreover, the flexible sponge sensor exhibits excellent photothermal performance, which is reflected in the good relationship between resistance change and laser irradiation time as well as power intensity. The coating of PPy@HNTs also significantly improved the flame retardancy of the PU sponge. This work developed a mild, high-efficiency, and simple preparation method of flexible sponge sensors, and the prepared sensor displayed multifunctional applications such as biological detection and electronic balances.

ACUTE RENAL FAILURE DURING POISONINGATTETRAHYDROCANNABIOL: ABOUT A CASE

Acute kidney failure (ARI) is a common condition affecting approximately26.9% of pediatric age patients. Its severity is variable, ranging from a simple disturbance of the biological balance to the need to resort to extra-renal purification and the commitment of the vital prognosis. Acute renal failure is defined as a sudden (occurring within 1 to 7 days) and sustained (&gt;24 hours) decline in renal function, reflected by an increase in plasma creatinine it is associated with the inability of the kidneys to excrete the waste products of nitrogen metabolism with an increase in blood urea.), other etiologies can be observed including the toxic origin. We report the case of a 14-year-old child from a non-consanguineous marriage, without particular pathological ATCDS, without notion of toxic or drug intake, admitted for AKI revealed by food vomiting and liquid diarrhea evolving for 5 days, with biological balance sheet urea at 1.69 and creatinine at 17.59. On examination the child was conscious stable normocardium at 92 bpm normotensive at120/80mmhg eupneic at 18 cpm diuresis at 1.1cc/kg/h weight and height inaverage, no edematous syndrome or sign of overload, the urine dipstick was negative without glucosuria, the etiological assessment was negative, the patient was put on oral hyperhydration alone (3L/d) with a marked improvement in renal function urea to 0.38 and creatinine at 5.4 after 24 hours, the questioning was resumed which noted the notion of consumption of tetrahydrocannabiol. In conclusion, ARI is considered a diagnostic and therapeutic emergency whose toxic origin is always to be mentioned above all in adolescents.