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The microwave absorption behaviour of nano-scale cobalt-zirconium co-substituted nickel-zinc ferrites Ni0.6Zn0.4(CoZr)xFe2-2xO4 (x = 0.05, 0.10, 0.15, 0.20 and 0.25) synthesized via a sol–gel citrate precursor is reported in Ku (12.4-18 GHz) and K (18-26.5 GHz) band frequencies. The dielectric characterization of the ferrites exhibits that values of real permittivity (ε′) decrease over the range of Ku band frequencies but less dispersion is found in the K band. Dielectric losses are found to be maximum in composition Ni0.6Zn0.4(CoZr)0.25Fe1.5O4. The magnetic characterization exhibits that real permeability (μ′) has a constant trend over the increasing range of frequencies but prominent peaks are observed in the spectra of imaginary permeability (μ″). Highest magnetic losses are observed for composition Ni0.6Zn0.4(CoZr)0.25Fe1.5O4 similar to dielectric losses. The reflection loss (RL) minima of −42.83 dB at 16.992 GHz and −26 dB at 18.68 GHz is found for the same composition in Ku and K band, respectively, with a matching thickness of 2 mm. [ABSTRACT FROM AUTHOR]

Dental avulsion is the most severe form of traumatic dental injury because it causes damage to several structures and results in the complete displacement of the tooth from its socket in the alveolar bone. The ideal situation is to replant an exarticulated tooth immediately after avulsion because the extraoral time is a determinant factor for treatment success and for a good prognosis. In studies, it was reported that the key to retention of the knocked-out teeth was to maintain the viability of the periodontal ligament. However, it is not always feasible to replant the tooth immediately due to several factors, such as the person's conscious state, lack of first aid knowledge, informed consent issue at the scene of the accident, and in such situations, storage media plays an important role in preserving the viability of PDL cells during the extra alveolar time. This review highlights the different storage media available for avulsed teeth, along with their merits and demerits, aiming to identify optimal approaches that promote the preservation of periodontal tissues. [ABSTRACT FROM AUTHOR]

A palaeofloristic study and geochemical analysis of a Permian section in Ib River Basin near Ustali village, Odisha State has been undertaken. The complete macrofloral assemblage comprising 44 taxa belong to the orders Equisetales, Sphenophyllales, Filicales, and Glossopteridales. A marked floral change has been noticed in two fossiliferous horizons of this section, demonstrating the existence of two different floral zones in Raniganj Formation rocks of this section. The upper floral zone is assigned to the Wuchiapingian, while the lower floral zone is of Wordian‐Capitanian age. The occurrence of Gangamopteris is the first report of this genus from the Raniganj Formation of the Ib River Basin, as well as from the Son‐Mahanadi Master Basin. The existence of tiny seeds infers the prevalence of arid and warm climatic conditions at least during the blossoming and seed development phase, resulting in a sluggish inflow of nutrients to the growing seeds, thereby restricting their proper growth. The palynoassemblage confirms its resemblance with the Raniganj palynoflora of Wordian‐Capitanian affinity. Biomarker analysis indicates a good contribution of algal and microbial organic matter during the deposition, however, the overall biomarker composition and distribution suggests an increased thermal maturity of the studied samples. [ABSTRACT FROM AUTHOR]

A 28-year-old male patient presented with multiple large, superficial, nodular masses in his elbows, buttocks, knees, Achilles tendons, feet, shoulders, and hands along with small xanthomatous lesions on the face, inner epicanthal region; largest mass being in the sacral region measuring 15 cm × 12 cm × 8 cm. The patient also presented with an elevated level of low-density lipoprotein cholesterol and was diagnosed with familial hypercholesterolemia (FH) presenting with multiple xanthomas. Local surgical excision was performed to remove the massive xanthoma from the sacrum, histopathology of which showed sheets of foamy lipid-laden histiocytes dissecting through the dermis and subcutaneous fat. The presence of long standing and/or multiple xanthomas often indicates severe and long-term FH. A thorough systemic workup is needed for such patients, especially to rule out cardiovascular complications so that lipid-lowering agents and dietary modifications can be initiated early on. We present the case of a young male patient with FH presenting with multiple large tuberous xanthomas all over the body. [ABSTRACT FROM AUTHOR]

This paper investigates the structural, morphological, magnetic, and microwave absorption properties of screen-printed Ba1−xLaxFe12O19 (x = 0.0, 0.1, 0.15, 0.20) thick films. Single phase P63/mmc was confirmed by X-ray diffraction patterns in fabricated thick films. SEM revealed dense packed microstructure with an average grain size of 2–3 μm for all films. La-substituted films showed increase in magnetization, coercivity, magnetocrystalline anisotropy with enhancement in perpendicular anisotropy. Overall microwave absorbance was increased for La-substituted BaM in Ku-band. [ABSTRACT FROM AUTHOR]

Megafloristics and palynology of a fossiliferous section near Kumunda Village, Angul district, Talcher Basin, Odisha have been studied. The exposure is located at 20°58′32″ N latitude and 85°01′45″ E longitude. The megafloral assemblage of the investigated section comprises Glossopteris, Vertebraria indica (Glossopteridales); Trizygia speciosa (Sphenophyllales); Schizoneura gondwanensis, Equicetaceous stems (Equisetales) and Neomariopteris hughesii (Filicales) along with stem casts. The genus Glossopteris dominates the assemblage with 20 different species and more than 60% in occurrence. The specimens are preserved as both impressions and compressions on compact, fine-grained carbonaceous shales. In addition, two distinct palynofloral assemblages have been recognized in this section. Palynoassemblage-I is characterized by the predominance of Striatopodocarpites spp. and Faunipollenites spp., while Palynoassemblage-II is dominated by Striatopodocarpites spp. and Faunipollenites spp. along with Densipollenites spp. The Palynoassemblages I and II correlate with Striatopodocarpites-Faunipollenites assemblage zone and Striatopodocarpites-Densipollenites assemblage zone respectively of the Late Permian Raniganj Formation in the Damodar Basin. The presence of key species viz., Densipollenites magnicorpus, Falcisporites nuthallensis, Strotersporites spp., Lunatisporites pellucidus, Guttulapollenites hannonicus, Corisaccites alutus, Weylandites lucifer and Hamiapollenites bifurcates in these palynoassemblages assign their affinity to the Late Permian. The present palynological investigations have identified the presence of Raniganj/Lower Kamthi (Late Permian) sediments exposed near Kumunda village, which is lithologically designated as Barakar Formation (Early Permian). Hence a precise and more thorough sampling for palynological studies and detailed geological mapping of this area should be attempted to delimit more accurately the distribution of the different Lower Gondwana formations in this investigated area of this basin. The rich diversity of Glossopteris leaves in the fine sediments infers seasonal falling and favourable conditions for plant growth with warm, humid (very high), temperate climate with intermittent rainfall during this period in Talcher Basin. [ABSTRACT FROM AUTHOR]

Structural, dielectric and electromagnetic properties of spinel ferrites Ni1 − xZnxFe2O4 have been reported in this study. Zinc substituted nickel ferrites Ni1 − xZnxFe2O4 (x = 0 to 1, Δx = 0.2) have been prepared with the sol gel citrate route with final sintering temperature of 1000°C for 8 h. The structural parameters of these ferrites are measured with the help of x-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy and Raman spectroscopy. The dielectric properties of the prepared ferrites have been measured with the help of an impedance analyzer and analyzed as a function of frequency in the MHz frequency range. The electromagnetic properties of these Ni-Zn ferrites in the X-band frequencies (8.2–12.4 GHz) have been obtained from the vector network analyzer (VNA) data. A study of reflection loss (RL) revealed that a minimum RL of − 17.54 dB is achieved at 9.62 GHz with matching thickness of 3.5 mm and absorption bandwidth of 3.108 GHz. [ABSTRACT FROM AUTHOR]