keyword
https://read.qxmd.com/read/38060428/fullerene-functionalized-halogen-bonding-heteroditopic-hosts-for-ion-pair-recognition
#21
JOURNAL ARTICLE
Krzysztof M Bąk, Igor Marques, Heike Kuhn, Kirsten E Christensen, Vítor Félix, Paul D Beer
Despite their hydrophobic surfaces with localized π-holes and rigid well-defined architectures providing a scaffold for preorganizing binding motifs, fullerenes remain unexplored as potential supramolecular host platforms for the recognition of anions. Herein, we present the first example of the rational design, synthesis, and unique recognition properties of novel fullerene-functionalized halogen-bonding (XB) heteroditopic ion-pair receptors containing cation and anion binding domains spatially separated by C60 ...
December 7, 2023: Journal of the American Chemical Society
https://read.qxmd.com/read/37982349/evaluating-modularity-in-the-hominine-skull-related-to-feeding-biomechanics
#22
JOURNAL ARTICLE
Hyunwoo Jung, David Strait, Campbell Rolian, Karen L Baab
OBJECTIVES: Modular architecture of traits in complex organisms can be important for morphological evolution at micro- and sometimes macroevolutionary scales as it may influence the tempo and direction of changes to groups of traits that are essential for particular functions, including food acquisition and processing. We tested several distinct hypotheses about craniofacial modularity in the hominine skull in relation to feeding biomechanics. MATERIALS AND METHODS: First, we formulated hypothesized functional modules for craniofacial traits reflecting specific demands of feeding biomechanics (e...
November 19, 2023: American journal of biological anthropology
https://read.qxmd.com/read/37897598/modeling-xylem-functionality-aspects
#23
JOURNAL ARTICLE
Alex Tavkhelidze, Gerhard Buck-Sorlin, Winfried Kurth
Depending on the questions to be answered, water flow in the xylem can be modelled following different approaches with varying spatial and temporal resolution. When focussing on the influence of hydraulic architecture upon flow dynamics, distribution of water potentials in a tree crown or questions of vulnerability of the hydraulic system, functional-structural plant models, which link representations of morphological structure with simulated processes and with a virtual environment, can be a promising tool...
2024: Methods in Molecular Biology
https://read.qxmd.com/read/37794682/low-phosphorus-promotes-nsp1-nsp2-heterodimerization-to-enhance-strigolactone-biosynthesis-and-regulate-shoot-and-root-architectures-in-rice
#24
JOURNAL ARTICLE
Kun Yuan, Hao Zhang, Chaoji Yu, Nan Luo, Jijun Yan, Shuang Zheng, Qingling Hu, Dahan Zhang, Liquan Kou, Xiangbing Meng, Yanhui Jing, Mingjiang Chen, Xinwei Ban, Zongyun Yan, Zefu Lu, Jian Wu, Yu Zhao, Yan Liang, Yonghong Wang, Guosheng Xiong, Jinfang Chu, Ertao Wang, Jiayang Li, Bing Wang
Phosphorus is an essential macronutrient for plant development and metabolism. Plants have evolved ingenious mechanisms to overcome phosphate (Pi) starvation. However, the molecular mechanisms underlying regulation of shoot and root architectures as well as coordinated utilization of Pi and nitrogen remain largely unclear. Here, we show that Nodulation Signaling Pathway 1 (NSP1) and NSP2 regulate tiller number by promoting the biosynthesis of strigolactones (SLs), which are a class of phytohormones with fundamental effects on plant architecture and environmental responses...
October 3, 2023: Molecular Plant
https://read.qxmd.com/read/37693112/tissue-amount-and-diagnostic-yield-of-a-novel-franseen-eus-fnb-and-a-standard-eus-fna-needle-a-randomized-controlled-study-in-solid-pancreatic-lesions
#25
JOURNAL ARTICLE
Bojan Kovacevic, Anders Toxværd, Pia Klausen, Michael H Larsen, Simon Grützmeier, Sönke Detlefsen, John Gásdal Karstensen, Lene Brink, Hazem Hassan, Estrid Høgdall, Peter Vilmann
BACKGROUND AND OBJECTIVES: Several types of needles are available for EUS-guided tissue sampling of pancreatic lesions. Whereas fine-needle aspiration (FNA) needles typically provide cytological samples, fine-needle biopsy (FNB) needles are designed to obtain microcores with preserved tissue architecture. The aim of this study was to compare tissue amount and diagnostic yield between a modified Franseen-type FNB needle (TopGain; Medi-Globe GmbH, Grassau, Germany) and a standard FNA needle...
2023: Endoscopic Ultrasound
https://read.qxmd.com/read/37692321/%C3%AF-architecture-construction-retention-and-repair-of-faecal-shields-in-three-tribes-of-tortoise-beetles-coleoptera-chrysomelidae-cassidinae-cassidini-mesomphaliini-spilophorini
#26
JOURNAL ARTICLE
Caroline Simmrita Chaboo, Sally Adam, Kenji Nishida, Luke Schletzbaum
Animal constructions are the outcomes of complex evolutionary, behavioural, and ecological forces. A brief review of diverse animal builders, the materials used, and the functions they provide their builders is provided to develop approaches to studying faecal-based constructions and faecal-carrying in leaf beetles (Coleoptera: Chrysomelidae). Field studies, rearing, dissections, photography, and films document shields constructed by larvae in two species in two tribes of the subfamily Cassidinae, Calyptocephalaattenuata (Spaeth, 1919) (Spilophorini), and Cassidasphaerula Boheman, 1853 (Cassidini)...
2023: ZooKeys
https://read.qxmd.com/read/37654297/a-retrospective-study-on-the-fracture-toughness-of-the-coronal-restorations-in-endodontically-restored-teeth-an-original-research
#27
JOURNAL ARTICLE
Kalambur Perumal Lavanya Priya, Shruti Gill, Arindam Banik, Jaydip Marvaniya, Krishnaveni Marella, Yalamanchi Anusha, Mohammed Mustafa
INTRODUCTION: The best treatment for the deeply carious tooth that cannot be restored is by the root canal therapy. This method has saved many patients from the loss of tooth. The common practice is either to deliver a full crown or close the access cavity with restoration. Hence in this study, the clinical longevity of the routine practice is tested for by analyzing the fracture toughness and the survival of the teeth that were restored endodontically with various materials. MATERIALS AND METHODS: The hospital records were retrospectively evaluated from 2000 to 2010 for a decade...
July 2023: Journal of Pharmacy & Bioallied Sciences
https://read.qxmd.com/read/37649710/cross-kingdom-analyses-of-transmembrane-protein-kinases-show-their-functional-diversity-and-distinct-origins-in-protists
#28
JOURNAL ARTICLE
Zhiyuan Yin, Danyu Shen, Yaning Zhao, Hao Peng, Jinding Liu, Daolong Dou
Transmembrane kinases (TMKs) are important mediators of cellular signaling cascades. The kinase domains of most metazoan and plant TMKs belong to the serine/threonine/tyrosine kinase (S/T/Y-kinase) superfamily. They share a common origin with prokaryotic kinases and have diversified into distinct subfamilies. Diverse members of the eukaryotic crown radiation such as amoebae, ciliates, and red and brown algae (grouped here under the umbrella term "protists") have long diverged from higher eukaryotes since their ancient common ancestry, making them ideal organisms for studying TMK evolution...
2023: Computational and Structural Biotechnology Journal
https://read.qxmd.com/read/37615779/novel-qtl-for-lateral-root-density-and-length-improve-phosphorus-uptake-in-rice-oryza-sativa-l
#29
JOURNAL ARTICLE
Lam Thi Dinh, Yoshiaki Ueda, Daniel Gonzalez, Juan Pariasca Tanaka, Hideki Takanashi, Matthias Wissuwa
The rice root system consists of two types of lateral roots, indeterminate larger L-types capable of further branching, and determinate, short, unbranched S-types. L-type laterals correspond to the typical lateral roots of cereals whereas S-type laterals are unique to rice. Both types contribute to nutrient and water uptake and genotypic variation for density and length of these laterals could be exploited in rice improvement to enhance adaptations to nutrient and water-limited environments. Our objectives were to determine how best to screen for lateral root density and length and to identify markers linked to genotypic variation for these traits...
August 24, 2023: Rice
https://read.qxmd.com/read/37615345/a-biologically-oriented-preparation-technique-bopt-for-immediate-posterior-implant-placement-immediate-provisionalization-and-definitive-implant-crown-fabrication-a-complete-digital-workflow
#30
JOURNAL ARTICLE
Martín Laguna-Martos, Rocío Cascos, Rubén Agustín-Panadero, Miguel Gómez-Polo, Marta Revilla-León
OBJECTIVE: Immediate implants and immediate alveolar sealing have been a widely utilized treatment with high predictability and biological advantages. The improvement in technology has made it possible to simplify clinical processes. The aim of the present report was to describe the complete digital workflow of the Biologically oriented preparation technique for immediate posterior implant, immediate provisionalization and fabrication of definitive implant crowns. CLINICAL CONSIDERATIONS: The surgical process and prosthetic management to preserve the gingival contours of the extracted natural tooth during immediate implant placement and provisionalization are described...
August 24, 2023: Journal of Esthetic and Restorative Dentistry
https://read.qxmd.com/read/37606710/hybrid-performance-evaluation-and-genome-wide-association-analysis-of-root-system-architecture-in-a-maize-association-population
#31
JOURNAL ARTICLE
Zhigang Liu, Pengcheng Li, Wei Ren, Zhe Chen, Toluwase Olukayode, Guohua Mi, Lixing Yuan, Fanjun Chen, Qingchun Pan
The genetic architecture of RSA traits was dissected by GWAS and coexpression networks analysis in a maize association population. Root system architecture (RSA) is a crucial determinant of water and nutrient uptake efficiency in crops. However, the maize genetic architecture of RSA is still poorly understood due to the challenges in quantifying root traits and the lack of dense molecular markers. Here, an association mapping panel including 356 inbred lines were crossed with a common tester, Zheng58, and the test crosses were phenotyped for 12 RSA traits in three locations...
August 22, 2023: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://read.qxmd.com/read/37560762/leaf-physiological-and-morphological-constraints-of-water-use-efficiency-in-c-3-plants
#32
REVIEW
Peter Petrík, Anja Petek-Petrik, Mohammad Mukarram, Bernhard Schuldt, Laurent J Lamarque
The increasing evaporative demand due to climate change will significantly affect the balance of carbon assimilation and water losses of plants worldwide. The development of crop varieties with improved water-use efficiency (WUE) will be critical for adapting agricultural strategies under predicted future climates. This review aims to summarize the most important leaf morpho-physiological constraints of WUE in C3 plants and identify gaps in knowledge. From the carbon gain side of the WUE, the discussed parameters are mesophyll conductance, carboxylation efficiency and respiratory losses...
July 2023: AoB Plants
https://read.qxmd.com/read/37491222/effect-of-n-acetylcysteine-on-initial-carious-enamel-lesions-in-primary-teeth-an-in-vitro-study
#33
JOURNAL ARTICLE
Shaimaa M Mahfouz Omer, Randa H El-Sherbiny, Shaimaa S El-Desouky
BACKGROUND: Dental caries initiates with non-cavitated enamel lesions as the first stage. The cariogenic potential of N-Acetylcysteine (NAC) may be due to its usage frequency and form. This study aimed to evaluate the impact of exposure time of NAC on initial enamel caries-like lesions in primary teeth by assessing the morphological alteration using a scanning electron microscope (SEM) and mineral content using energy dispersive x-ray spectroscopy (EDX). METHODS: Forty primary incisor teeth were randomly divided into 4 groups S, S1, S2, and S3 (10 specimens/group)...
July 25, 2023: BMC Oral Health
https://read.qxmd.com/read/37447087/changes-in-the-amount-and-distribution-of-soil-nutrients-and-neighbours-have-differential-impacts-on-root-and-shoot-architecture-in-wheat-triticum-aestivum
#34
JOURNAL ARTICLE
Habba F Mahal, Tianna Barber-Cross, Charlotte Brown, Dean Spaner, James F Cahill
Plants exhibit differential behaviours through changes in biomass development and distribution in response to environmental cues, which may impact crops uniquely. We conducted a mesocosm experiment in pots to determine the root and shoot behavioural responses of wheat, T. aestivum. Plants were grown in homogeneous or heterogeneous and heavily or lightly fertilized soil, and alone or with a neighbour of the same or different genetic identity (cultivars: CDC Titanium, Carberry, Glenn, Go Early, and Lillian). Contrary to predictions, wheat did not alter relative reproductive effort in the presence of neighbours, more nutrients, or homogenous soil...
July 2, 2023: Plants (Basel, Switzerland)
https://read.qxmd.com/read/37337998/oxa-triquinoline-a-new-entry-to-aza-oxa-crown-architectures
#35
JOURNAL ARTICLE
Toi Kobayashi, Naoya Kumagai
A new 15-membered-macrocyclic molecular entity, oxa-TriQuinoline (o-TQ), was designed and synthesized. In o-TQ, three oxygen atoms were joined onto three quinoline units at the 2- and 8-positions in a head-to-tail fashion via three-fold SNAr reactions, giving rise to the characteristic N3O3 aza-oxa-crown architecture. o-TQ can serve as a new tridentate nitrogen ligand to capture a Cu(I) cation and adopt a bowl shape, before supramolecular complexation with corannulene and [12]CPP occurs via π-π and CH-π interactions...
June 20, 2023: Angewandte Chemie
https://read.qxmd.com/read/37179620/molecular-characterization-of-germin-like-protein-genes-in-zea-mays-zmglps-using-various-in-silico-approaches
#36
JOURNAL ARTICLE
Muhammad Ilyas, Iftikhar Ali, Dalal Nasser Binjawhar, Sami Ullah, Sayed M Eldin, Baber Ali, Rashid Iqbal, Syed Habib Ali Bokhari, Tariq Mahmood
Germin (GER) and germin-like proteins (GLPs) play an important role in various plant processes. Zea mays contains 26 germin-like protein genes ( ZmGLPs ) located on chromosomes 2, 4, and 10; most of which are functionally unexplored. The present study aimed to characterize all ZmGLPs using the latest computational tools. All of them were studied at a physicochemical, subcellular, structural, and functional level, and their expression was predicted in plant development, against biotic and abiotic stresses using various in silico approaches...
May 9, 2023: ACS Omega
https://read.qxmd.com/read/37159876/on-the-rational-design-of-core-multi-crown-type-ii-heteronanoplatelets
#37
JOURNAL ARTICLE
Savas Delikanli, Betul Canimkurbey, Pedro Ludwig Hernández-Martínez, Farzan Shabani, Ahmet Tarik Isik, Ilayda Ozkan, Iklim Bozkaya, Taylan Bozkaya, Furkan Isik, Emek Goksu Durmusoglu, Merve Izmir, Hakan Akgun, Hilmi Volkan Demir
Solution-processed two-dimensional nanoplatelets (NPLs) allowing lateral growth of a shell (crown) by not affecting the pure confinement in the vertical direction provide unprecedented opportunities for designing heterostructures for light-emitting and -harvesting applications. Here, we present a pathway for designing and synthesizing colloidal type-II core/(multi-)crown hetero-NPLs and investigate their optical properties. Stoke's shifted broad photoluminescence (PL) emission and long PL lifetime (∼few 100 ns) together with our wavefunction calculations confirm the type-II electronic structure in the synthesized CdS/CdSe1- x Te x core/crown hetero-NPLs...
May 9, 2023: Journal of the American Chemical Society
https://read.qxmd.com/read/37133320/spatio-temporal-analysis-of-strawberry-architecture-insights-into-the-control-of-branching-and-inflorescence-complexity
#38
JOURNAL ARTICLE
Marc Labadie, Karine Guy, Marie-Noëlle Demené, Yves Caraglio, Gaetan Heidsieck, Amelia Gaston, Christophe Rothan, Yann Guédon, Christophe Pradal, Béatrice Denoyes
Plant architecture plays a major role in flowering and therefore in crop yield. Attempts to visualize and analyse strawberry plant architecture have been few to date. Here, we developed open-source software combining two- and three-dimensional representations of plant development over time along with statistical methods to explore the variability in spatio-temporal development of plant architecture in cultivated strawberry. We applied this software to six seasonal strawberry varieties whose plants were exhaustively described monthly at the node scale...
March 26, 2023: Journal of Experimental Botany
https://read.qxmd.com/read/37130552/digital-smile-makeover-a-multidisciplinary-team-approach
#39
JOURNAL ARTICLE
Dalia Nourah
Aesthetics is a fundamental part of contemporary dental practice. A pleasant smile depends on the gingival tissue architecture and dental characteristics. Excessive gingival display (gummy smile) is considered an unattractive smile and can affect a person's confidence. There are many etiological factors related to a gummy smile. Aesthetic rehabilitation of these cases often requires an interdisciplinary approach and close collaboration between dental specialties. This article describes an approach to excessive gingival display management caused by short teeth and hyperactive lips using a digital workflow for crown lengthening...
May 2, 2023: European Journal of Dentistry
https://read.qxmd.com/read/37126737/region-controlled-framework-interface-mediated-anion-exchange-chemical-transformation-to-designed-metal-phosphosulfide-heteronanostructures
#40
JOURNAL ARTICLE
Wan-Hong Li, Hou-Ming Xu, Lei Shi, Dong Zheng, Chao Gu, Shi-Kui Han
Postsynthetic chemical transformation provides a powerful platform for creating heteronanostructures (HNs) with well-defined materials and interfaces that generate synergy or enhancement. However, it remains a synthetic bottleneck for the precise construction of HNs with increased degrees of complexity and more elaborate functions in a predictable manner. Herein, we define a general transformative protocol for metal phosphosulfide HNs based on tunable hexagonal Cu1.81 S frameworks with corner-, edge- and face-controlled growth of Co2 P domains...
May 1, 2023: Nano Letters
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