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The development of an off-stoichiometry thiol–ene–epoxy (OSTE+) based functional polymer has paramount importance for smart photonic sensor integrated lab-on-chip device applications. A modest attempt has been made to develop a semiconducting OSTE+ polymer material with ferroelectric behavior by tuning the stoichiometry ratio of the moieties for optoelectronic device applications in the visible region. The structural and optical properties of this material have been investigated in the thin film. The planar-type metal–semiconductor–metal (MSM) structure has been fabricated on interdigitated electrodes (IDEs) and the current–voltage characteristic of this MSM configuration shows the Schottky barrier formation at the metal–polymer interfaces. This MSM device generates photocurrent when it is exposed to visible light, which is attributed to the semi-crystalline nature of this polymer thin film. In addition, this polymer device exhibited ferroelectric polarization similar to the behavior shown by the conventional polar semi-crystalline polymers. Moreover, various characteristic parameters of this device have been extracted from the incident power-dependent photocurrent and established the fabricated MSM device as a new semiconducting polymer photodetector. This study thus established the thiol–ene–epoxy as a promising candidate for the development of semiconducting functional polymers along with the ferroelectric characteristics which have potential use in single polymer-based field-effect transistors and functional photonic materials. [ABSTRACT FROM AUTHOR]

MicroRNAs are critical regulators of gene expression in plants and other organisms, and are involved in regulating plethora of developmental processes. Evolutionarily, miRNAs can be ancient and conserved across species or recently evolved and young, which are not conserved across diverse plant groups. MicroRNA775 (miR775) is a non-conserved miRNA identified only in Arabidopsis thaliana (A. thaliana). Here, we investigated the functional significance of miR775 in A. thaliana and observed that miR775 targets a probable β-(1,3)-galactosyltransferase gene at post transcriptional level. Phenotypic analysis of miR775 over-expression lines and the target mutant suggested miR775 regulates rosette size by elongating petiole length and increasing leaf area. Further, the expression of miR775 was found to be up-regulated in response to UV-B and hypoxia. Our results also suggest that miR775 regulated β-(1,3)-galactosyltransferase may involve in regulating the β-(1,3)-galactan content of arabinogalactans. Collectively, our findings establish a role of miR775 in regulating growth and development in A. thaliana. [ABSTRACT FROM AUTHOR]

Sports competitions and recreational activities are practiced by infants, kids, and teenagers for their physical and mental health. Unfortunately, engaging in sports increases the chance of suffering trauma to the mouth's delicate and hard tissues, including lacerations to the lips, various injuries to the gingiva, tongue, or mucosa, chipped, luxated, or avulsed teeth, maxillary or mandibular fractures. The importance of the dentistry profession in connection to the prevention of dental and other orofacial sporting injuries has increased due to the popularity of contact sports and the encouraging of participation at a young age. Inculcating the prevention, management, and treatment of oral and face injuries, sports dentistry is the newest and most promising area of dentistry. Dentists should make it a point to tell parents about the orofacial damage caused by sports and about the different preventive measures that are available. They should also have solid clinical understanding of sports-related dentofacial injuries. In this article, we go over the different facets of sports-related injuries as well as the risk factors that go along with them. [ABSTRACT FROM AUTHOR]

In this work, a dual-port circularly polarized (CP) Multiple Input Multiple Output (MIMO) antenna equipped with frequency selective surface (FSS) for X-band applications is designed and analyzed. The antenna system aims to enhance gain, a critical parameter like isolation radiation pattern, etc. In wireless communication systems working in the X-band frequency range. The present MIMO antenna consists of two parts that provide coverage for the whole frequency band of 7.6–11.6 GHz, specifically for X-band communication applications. As a decoupled network, the meander line architecture greatly improves isolation. The MIMO antenna's measurements include 25 × 30 × 1 mm3. To improve the antenna's peak gain even further, a FSS is placed below the present MIMO antenna at 10.5 mm. The whole volume of the FSS-inspired composite structure is 50 × 60 × 11.6 mm3. By correctly incorporating the FSS array with the antenna's structure and utilizing its frequency-selective properties, gain improvement can be attained. Without FSS, the antenna's gain is 4.8 dBi and it is enhanced by 21 % and the maximum value of gain is 15 dBi in the desired frequency spectrum. The efficiency of the proposed FSS-inspired structure is >84.2% in the operating frequency band. To evaluate the MIMO performance of the current antenna, several attributes are evaluated. On the evaluation, it is found that the present MIMO antenna has an envelope correlation coefficient (ECC) < 0.004, a diversity gain (DG) over 9.99, measured mean effective gain (MEG) below 3 dB, and CCL of less than 0.4 bits/s/Hz throughout the resonant frequency spectrum. Through modeling and experimental testing, the current MIMO antenna model is created and verified. [ABSTRACT FROM AUTHOR]

This article provides an effective numerical approach using the fractional integral operational matrix method for a fractional Legendre wavelet to deal with multi-dimensional fractional optimal control problems. We proposed operational matrices and implemented them to simplify multi-dimensional fractional optimal control problems into a set of equations, utilizing well-known formulas such as the Caputo-Fabrizio operator with a non-singular kernel defined for calculating fractional derivatives and integrals of fractional Legendre wavelets. Finally, the Lagrange multiplier technique is applied, and we get the state and control functions. The convergence analysis and error bounds of the proposed scheme are established. To check the veracity of the presented method, we tested numerical examples using the fractional Legendre wavelet method and obtained the cost function value based on identifying state and control functions. [ABSTRACT FROM AUTHOR]

Byline: Subodh. Mahto, Pulin. Gupta, Akanksha. Singh, Ramesh. Meena Chikungunya fever (CHIK) is an arboviral disease which is transmitted by a mosquito bite (Aedes aegypti). Fever, polyarthralgia, and maculopapular rash [...]

Gingival recession occurs when the location of the gingival margin lies apical to the cemento-enamel junction (CEJ) and leads to dentinal hypersensitivity, unesthetic appearance and tendency for root caries. Although many techniques have been developed and tried for treating isolated gingival recession with a reasonable extent of success and high aesthetics demands. This article puts an emphasis on lateral pedicle flap (LPF) technique to cover the denuded root surface in mandibular anterior region. This case report presents the predictability of root coverage by using Lateral pedicle grafts in single tooth with narrow and shallow gingival recession. [ABSTRACT FROM AUTHOR]