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Morphological and molecular identification and management of chafer beetle (Protaetia terrosa Gory & Percheron) infesting cluster bean in Rajasthan
No full text167-173Identification, incidence, and management of the chafer beetle, Protaetia terrosa, on cluster beans was carried out in semi-arid Indian conditions. The P. terrosa was identified using morphological and molecular characters. The distinguishing morphometric characteristics of P. terrosa were viz., head (length: 2.21 mm; width: 2.94 mm), thorax (length: 4.95 mm; width: 6.87 mm), elytra (length: 10.08 mm; width: 8.68 mm), and other morphological features. For molecular identification, a gene fragment of 655 bp size encoding mitochondrial cytochrome c oxidase I enzyme was amplified, sequenced and submitted to NCBI (MW008478), and the barcode was generated as BIN Number BOLD: AEF1461. This is the first report of the partial mt Co1 gene sequence of P. terrosa, with a unique barcode as diagnostic tool. The BLAST P and phylogenetic analysis revealed highest sequence similarity of P. terrosa with P. cuprea, and P. fusca. The P. terrosa infestation results in wilting, drying and ultimately dying of cluster bean plants. The chafer beetle infested plants have a visible white portion (pith) of the stem with little or devoid of lateral roots. The study recorded up to 14.23% infestation by chafer beetles under natural unprotected conditions. The soil drenching with clothianidin 50% WDG @ 250 gm/ha resulted significant reduction in damage by P. terrosa, and could prevent up to 19.36% loss in yield. In nutshell, regular crop monitoring and adoption of suitable management practices are highly important to keep this pest under check
Controlling macromolecular superstructures of AIE-active porphyrin by manipulating pH in water
No full text172-182Supramolecular superstructures are controlled by pH dependent self-assembly of octaphosphonatetetraphenyl-porphyrin-
1 (OPP-1) in aqueous solution. UV-Vis absorption spectroscopy shows decreasing in the intensity of OPP-1 in the pH range
3.0 to 6.0, which is correlated to H-type aggregates. However, absorption shifts to bathochromic (red-shift) under the
influence of pH 8.0-11.0 range, which is typical for a J-type aggregate in absorbance spectrum as a result of supramolecular
self-organisation constructed as compared to free OPP-1 (molecules transitioned to a monomeric positions). In these, the
OPP-1 aggregated outside the surface pH 8.0-11.0 range is similar to growth of worm-like micelles. However, at pH range
3.0-6.0, OPP-1 is aggregated inside the surface. Self-assembled OPP-1 have been visualised on silicon wafer by Scanning
Electron Microscopy (SEM), and it clearly shows that petite rod-like aggregates are formed at pH 5.0 and 6.0. Interestingly,
OPP-1 assemble into directional growth to produce worm-like micelle aggregates at pH 8.0 and 9.0, respectively. The main
driving force of assembled supramolecules are basically based on H-bonding and stacking between central core of
porphyrin. Finally, Dynamic Light Scattering (DLS) study supports mode of aggregation of short rods and growth of wormlike
micelles in basic pH and X-ray diffraction (XRD) study clearly demonstrates that self-assembled structures are
crystalline in nature. This interesting pH-dependent self-assembly phenomenon is based on OPP-1 (synthetic analogue to
natural occurring porphyrins) and can provide basis for development of novel conducting materials as well as biomaterials
in the future
Electrochemical Performance of Synthesized ZnS Microspheres for Super capacitor Applications
No full text181-185The integrated energy conversion and storage mechanism are highly needed in future to fulfil the demand of energy
consumption. The current investigation carried out to explore such a material which have immense potential in this sector.
The present study explores the electrochemical charge storage behaviour of Zinc Sulphide (ZnS) as supercapacitor electrode.
The synthesis was done via cost-effective, efficient, and straight forward reflexive method. The synthesized ZnS
nanoparticle exhibit excellent crystallinity with 17 nm of average crystallite size and having microsphere morphology
conveyed an excellent specific capacitance of 74 Fg–1 at 1 Ag–1 of current density and 72 Fg–1 at sweep rate of 1 mVs–1
along with remarkable rate capability that reflects the genuine potential of synthesized ZnS as an electrode for
supercapacitor in energy storage
Scientific Productivity on ChatGPT: A Bibliometric Analysis
No full text32-41Introduction: The discipline of Natural Language Processing (NLP) has experienced unprecedented advancements in recent years. Among these, OpenAI’s ChatGPT has emerged as a frontrunner, captivating students, researchers and enthusiasts alike. As ChatGPT advances further, a need has arisen to judge, assess and understand the pattern and trajectory of scholarly contributions in the form of a ‘Bibliometric Method’.
Motive: This article takes a bibliometric approach on 2302 scholarly publications related to ChatGPT from its inceptions year to 2023. It performed author productivity, citation analysis, keyword co-occurrence and productivity of journals and authors. It also performed various collaborative measures as well as Lotka’s law of scientific productivity.
Methodology: Quantitative bibliometric analysis was chosen as the methodology for this research. Scopus was picked out to be the database to collect data. 2302 documents fulfilled the search query and thus, were chosen as the dataset for this research. Data refining and all the related works were performed in MS Excel. Vos-viewer and biblioshiny ware used to visualize the data.
Findings: after the analysis, it was found that most of the documents written over ChatGPT were articles, authors preferred collaboration over individual works, keywords i.e., artificial intelligence, large language models and ChatBot co-occur distinctively with ChatGPT, USA is the top productive country whereas Journal of Biomedical Engineering published most work over ChatGPT. It was also observed that the collaborative pattern of authors does fulfil ‘Lotka’s law of scientific productivity’.
Originality: As ChatGPT is comparatively a recently emerging concept, not a lot of bibliometric research has been performed on it. Thus, this research is one of the pioneers in ChatGPT-related bibliometric analysis and wishes to pave the way for future research
Preclinical efficacy and cellular mechanisms of a polyherbal formulation in doxorubicin nephrotoxicity
No full text33-41The study aimed to evaluate the efficacy and cellular mechanisms of a standardised polyherbal formulation (PHF) derived from Asparagus falcatus L., Abelmoschus moschatus Medik. and Barleria prionitis L. of Sri Lankan origin in an animal model of doxorubicin nephrotoxicity. In vitro studies were carried out for chemical standardisation and determination of shelf life. The efficacy and nephroprotective mechanisms of the standardised PHF were investigated after repeated oral administration of the aqueous PHF at low (200 mg/kg body weight), therapeutic (400 mg/kg body weight), and high (600 mg/kg body weight) doses in the doxorubicin-induced (5 mg/kg body weight) nephrotoxicity model in Wistar rats. Fosinopril (0.09 mg/kg body weight) was used as the standard drug. The PHF derived from the selected medicinal herbs showed satisfactory purity and quality. Treatment of the standardised PHF for 28 days in nephrotoxic rats caused a significant reduction in serum creatinine, blood urea nitrogen, β2-microglobulin, cystatin C, and urine total protein compared to the doxorubicin model group (p<0.05). The biochemical findings on markers of oxidative stress, inflammatory cytokines, and immunohistochemical evaluation of COX-2, BCL-2, and Bax further demonstrated the anti-inflammatory and anti-apoptotic activities of the novel PHF. The findings revealed that PHF was efficacious at the selected doses and its‟ nephroprotective mechanisms were mediated by mitigating doxorubicin-induced oxidative stress, inflammation, and apoptosis in experimental rats
Miniaturized Bandpass Filter with Controllable Transmission Zero using Low-Temperature Co-fired Ceramic (LTCC) Technology
No full text262-268The trend toward miniaturization of satellite payloads necessitates the development of increasingly smaller and more
efficient receiver and transmitter systems. Consequently, the components that make up these receivers and transmitters must
be compact and utilize multi-layer technology to create hybrid architectures. Microstrip-based high-rejection filters
necessitate a significant amount of space, which hinders the implementation of radio frequency systems in package (SiPs).
The objective of this study is to develop compact filters for satellite receivers. This research focuses on constructing a filter
that has improved selectivity to reject unwanted image frequencies while keeping the filter order the same. A third-order
grounded combline resonator loaded with a capacitor has been chosen as the fundamental configuration for the proposed
bandpass filter design. The paper introduces a new method to improve the selectivity of the combline resonator bandpass
filter by incorporating a transmission zero, which is achieved by introducing a U-shaped coupling structure between nonadjacent
resonators in a separate layer. The position of the transmission zero can be accurately controlled by adjusting the
length of the U-shaped coupling transmission line. An additional coupling pad has been inserted between the resonator and
the U-shaped pattern on a separate layer to guarantee the coupling between the resonators and adjust the bandwidth. An
innovative method was employed to build and simulate a filter for the Ku-band frequency range of 12.7 GHz to 13.0 GHz.
The filter has a 1-dB absolute bandwidth of 310 MHz and achieves a rejection of 26 dB at 11.6 GHz, the image frequency
for a standard payload receiver. The filter's dimensions are 6.5 mm × 2.58 mm × 0.89 mm, making it an essential component
of the RF SiP