Publications by authors named "Manik"

The increasing challenges posed by plant viral diseases demand innovative and sustainable management strategies to minimize agricultural losses. Exogenous double-stranded RNA (dsRNA)-mediated RNA interference (RNAi) represents a transformative approach to combat plant viral pathogens without the need for genetic transformation. This review explores the mechanisms underlying dsRNA-induced RNAi, highlighting its ability to silence specific viral genes through small interfering RNAs (siRNAs).

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Experimental studies have shown that osmosis could be one of the mechanisms of water transport in porous materials that act, to a certain extent, as semipermeable membranes. In this paper, an experimental apparatus and the corresponding model to measure and determine the osmotic efficiency, , of bulk porous materials are described. Both the apparatus and model to interpret water transport in samples are modifications of those of Sherwood and Craster.

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Unlabelled: is the causal agent of stem rot of many crops, a highly destructive disease of groundnut ( L). Based on evidence that many groundnut genotypes have an inherent ability to tolerate the pathogenicity of species, twenty-two genotypes of groundnut were screened against infection in sick plot field experiment; four genotypes, namely CS19, GG16, GG20 and TG37A, were selected as being the most tolerant, moderately tolerant, susceptible and highly susceptible to stem rot, respectively. Stem tissues (1cm from the collar region) from infected and healthy plants of four selected genotypes differing in susceptibility were examined using a scanning electron microscope (SEM).

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Innate immunity relies on Toll-like receptors (TLRs) to detect pathogen-associated molecular patterns. The TIR (Toll/interleukin-1 receptor) domain-containing TLR adaptors TRIF (TIR domain-containing adaptor-inducing interferon-β) and TRAM (TRIF-related adaptor molecule) are essential for MyD88-independent TLR signaling. However, the structural basis of TRIF and TRAM TIR domain-based signaling remains unclear.

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Microplastics (MPs) have recently gained attention as emerging environmental contaminants, yet knowledge of their distribution, sources, and risks in freshwater lakes remains limited. This study examined the occurrence and risk of MPs in water and sediment samples from eight locations in Mohamaya Lake (Bangladesh) collected in April and May 2023. MPs were identified using stereomicroscopy and FTIR, revealing concentrations of 20-95 particles/L in water and 550-1900 particles/kg (d.

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An attempt was made to develop a novel dairy-based dip-like product from heat-acid-induced milk gel and whey. Based upon preliminary trials, the combination of cream (15-35%), whey (60-70%) and common salt (0.8-1.

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Background: The development of new trans-septal transcatheter interventions for patients with structural heart disease necessitates a precise and comprehensive understanding of the anatomy of the interatrial septum (IAS). The scarcity of gross anatomical studies has triggered our interest in exploring the morphometry and morphology of IAS.

Aims: To study the morphology, morphometry and variations of the interatrial septum in autopsied human hearts.

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Background: Metabolic syndrome (MetS) is a collection of conditions that includes abdominal obesity, low high-density lipoprotein (HDL) levels, high triglycerides, hypertension, and impaired glucose metabolism, all of which are risk factors for cardiovascular diseases. Of the biomarkers above, lipoprotein-associated phospholipase A2 (Lp-PLA2) has been highlighted as a critical link between inflammation and the pathogenesis of atherosclerosis, which strongly predicts cardiovascular events. Micronutrients like magnesium and zinc are essential in maintaining metabolic and cardiovascular health, but these micronutrient deficiencies occur frequently among individuals with MetS.

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Composites containing two different types of reinforcements offer a wide range of possibilities and synergistic properties. This study investigates the hybridization effect of chemically active fly ash (FA) (5 wt %) on the composites made from alkali (1 wt %) - APTES silane (2 wt %) treated Himalayan agave fibers (HAF) (25 wt %) and polypropylene (PP). Prior to FA activation, the planetary ball mill was used to suitably reduce the particle size of the FA with was confirmed by the dynamic light scattering approach.

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Article Synopsis
  • Far infrared radiation (FIR) between 4-14 μm can benefit human health by improving blood flow, leading to the development of health-promoting textiles using FIR-emitting additives in polymer fabrics.
  • The study focused on biochar from candlenuts combined with activated carbon in polypropylene films, finding that its inclusion increased FIR emissivity and enhanced UV/NIR blocking capabilities.
  • Biochar significantly improved temperature retention and tensile strength of the fibers, suggesting its potential for use in warming clothing and longer-lasting materials compared to other common additives.
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Alzheimer's disease (AD) is a neurodegenerative disorder, characterized by the formation of amyloid β and tau protein aggregates in the brain, neuroinflammation, impaired cholinergic neurotransmission, and oxidative stress, resulting in the gradual loss of neurons and neuronal function, which leads to cognitive and memory deficits in AD patients. Chronic neuroinflammation plays a particularly important role in the progression of AD since the excessive release of proinflammatory cytokines from glial cells (microglia and astrocytes) induces neuronal damage, which subsequently causes microglial activation, thus facilitating further neurodegenerative changes. Mitogen-activated protein kinase (MAPK) p38α is one of the key enzymes involved in the control of innate immune response.

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Article Synopsis
  • * Micronucleophagy occurs at the nucleus-vacuole junction (NVJ), where a section of the nucleus, containing nucleolar proteins, is pushed into the vacuole for degradation after the protein kinase TORC1 is inactivated due to nutrient starvation.
  • * The study found that VAMP-associated proteins (VAPs), specifically Scs2 and Scs22, are essential for maintaining the integrity of the NVJ and facilitating the degradation process, highlighting their significant role in
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The tannery industry produces one of the worst contaminants, and unsafe disposal in nearby waterbodies and landfills has become an imminent threat to public health, especially when the resulting multidrug-resistant bacteria and heavy metals enter community settings and animal food chains. In this study, we have collected 10 tannery wastewater (TWW) samples and 10 additional non-tannery wastewater (NTW) samples to compare the chemical oxygen demand (COD), pH, biological oxygen demand (BOD), dissolved oxygen (DO), total dissolved solids (TDS), chromium concentration, bacterial load, and antibiotic resistance profiles. While COD, pH, and chromium concentration data were previously published from our lab, this part of the study uncovers that TWW samples had a significantly higher bacterial load, compared to the non-tannery wastewater samples (5.

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Aim: Immediate care of newborns is essential to scale back the mortality rate. This study tries to search out several aspects of newborn care practices of newborn birth from BDHS 2017-18 data.

Methods: Initially, bivariate analysis is employed to look at the differentials' initial newborn care practices by several selected background variables.

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In modern dentistry, restorations that are more aesthetically pleasing have now replaced the amalgam restorations. The "stamp technique" is one of the more recently developed techniques for combining aesthetics and functionality. When caries are visible on radiographs or clinical examinations of teeth with complete marginal ridges and an ideal tooth structure, this method can be used.

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Aesthetics has been an important aspect of dentistry along with functionality for decades but its significance is at an all-time high. Hence among techniques that contribute toward this goal, strip crown has shown convincing results. However, its acceptance did not reach its potential, especially among general dentists which could be attributed to its technique-sensitive nature.

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The stamping technique, a pivotal process, has undergone significant advancements with the integration of composites. Traditionally, direct or indirect restorative cements, e.g.

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Effective planning, management, and control of industrial plants and processes have exploded in popularity to enhance global sustainability in recent decades. In this arena, computational predictive models have significantly contributed to plant performance optimization. In this regard, this research proposes an Improvised Grey Wolf Optimizer (IGWO) aided Artificial Neural Network (ANN) predictive model (IGWO-ANN Model-1 to 4) to predict the performance (permeate flux) of desalination plants accurately.

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The current study attempts to explore the crystallographic, rheological and, dynamic mechanical properties of the submicron-treated cenosphere (t- CSF) particles and sisal fiber (SF) reinforced Styrene-(Ethylene-Butylene)-Styrene (SEBS) toughened PP hybrid composites. Moreover, the composites reinforced with 25 wt.% of SF and 5 wt.

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Article Synopsis
  • Splitting a molar involves separating its root from the crown to help preserve tooth structure and surrounding bone.* -
  • Hemisection is a beneficial procedure for damaged teeth, allowing for the retention of part of the tooth and making it possible to install a fixed prosthesis.* -
  • This case report highlights hemisection as an effective treatment option for preserving carious mandibular first molars with specific dental problems.*
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Endodontic therapy focuses on the root canal system to treat infected or damaged pulp tissue within the tooth, ultimately preserving the tooth and restoring its function. The root canal space should be cleaned with the use of proper instruments and chemical disinfectants to eradicate infected pulpal tissue and its remnants. The failure of endodontic therapy is attributed to a lack of understanding of the differences in anatomy among teeth, as evidenced by research.

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The maxillary second premolar has long been regarded as a tooth with a straight root canal anatomy, typically featuring a single root with two canals. However, emerging evidence suggests this tooth may harbor a more intricate internal morphology, challenging conventional perceptions, and treatment approaches. One such variation is three root canals within the upper second premolar, which has been gaining increasing attention in endodontic literature.

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Dental anatomy exhibits considerable variation with the presence of additional canals being a common occurrence. The upper second molar typically presents with three canals and three roots; however, variations such as the existence of an extra canal or a root can pose challenges during endodontic treatment. Maxillary molar is characterized by an additional canal located within the palatal root, often exhibiting complex configurations and variations in morphology.

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Cellulose nanocrystals (CNCs) have received immense interest lately as a potential nanomaterial because of their excellent mechanical and biological properties. This investigation aims to formulate a composite coating made of polyvinyl alcohol (PVA), CNCs, and a methanolic extract from the dried leaves and fruit of the fig tree (Ficus auriculata) (FAE). A sequential procedure to get CNCs included alkaline and acid hydrolysis, sonication, and suitable methods for purification.

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The use of quality seeds is crucial to improve rice yield, food security, and farmers' livelihoods. The large informal seed system, limited access to quality seeds, and low seed replacement rate challenge increasing rice yield. Despite robust government initiatives to support the seed system, progress has been slow.

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