Effective bulk and mass densities of randomly distributed coated cylinders in fluid.

Inhomogeneous media made of random configurations of coated circular cylinders are considered. The effective properties-wave number, mass density, bulk modulus-are discussed and illustrated. The effects of the volume fraction of the scatterers and surrounding fluid are also examined.

Development of the Incompatible Insect Technique targeting : introgression of a wild nuclear background restores the performance of males artificially infected with .

The bacterium is increasingly studied for its potential use in controlling insect vectors or pests due to its ability to induce Cytoplasmic Incompatibility (CI). CI can be exploited by establishing an opportunistic infection in a targeted insect species through trans-infection and then releasing the infected males into the environment as sterilizing agents. Several host life history traits (LHT) have been reported to be negatively affected by artificial infection.

High astrovirus diversity in an endemic bat species suggests multiple spillovers from synanthropic rodents and birds.

Beyond the role of bats as natural host reservoirs of infectious agents, the impact of viral spillover from other animal species to bats has been neglected. Given the limited virus-host specificity of astroviruses (AstVs) and their propensity for cross-species transmission, we hypothesized that AstVs could be transmitted within animal communities (rodents, birds, and bats) and that native endemic bats may be exposed to viruses hosted by other species. We investigated the presence of AstV RNA in 3,796 biological samples collected in Reunion Island from ( = 3421), an endemic free-tailed bat species, and also from small terrestrial mammals and birds: ( = 146), ( = 74), ( = 36), ( = 99), and ( = 20).

Suspected Stonefish Envenomation in Reunion Island: 15 Years Later.

Introduction: Although marine envenomations are a reason for consultation in tropical emergency departments, stonefish stings are particularly feared. Immediate management focuses on pain control, whereas late management addresses cutaneous complications. This study presents a new series and compares the management of these patients and their outcomes at our center over the past 20 years.

Uncovering a new family of conserved virulence factors that promote the production of host-damaging outer membrane vesicles in gram-negative bacteria.

CprA is a short-chain dehydrogenase/reductase (SDR) that contributes to resistance against colistin and antimicrobial peptides. The cprA gene is conserved across Pseudomonas aeruginosa clades and its expression is directly regulated by the two-component system PmrAB. We have shown that cprA expression leads to the production of outer membrane vesicles (OMVs) that block autophagic flux and have a greater capacity to activate the non-canonical inflammasome pathway.

Simultaneous Activation of Beta-Oxidation and De Novo Lipogenesis in MASLD-HCC: A New Paradigm.

Background And Aims: Metabolic dysfunction-associated steatotic liver disease (MASLD) is the most common cause of hepatocellular carcinoma (HCC). In this study, we combine metabolomic and gene expression analysis to compare HCC tissues with non-tumoural tissues (NTT).

Methods: A non-targeted metabolomic strategy LC-MS was applied to 52 pairs of human MASLD-HCC and NTT separated into 2 groups according to fibrosis severity F0F1-F2 versus F3F4.

Translation of the downstream ORF from bicistronic mRNAs by human cells: Impact of codon usage and splicing in the upstream ORF.

Biochemistry textbooks describe eukaryotic mRNAs as monocistronic. However, increasing evidence reveals the widespread presence and translation of upstream open reading frames preceding the "main" ORF. DNA and RNA viruses infecting eukaryotes often produce polycistronic mRNAs and viruses have evolved multiple ways of manipulating the host's translation machinery.

[Diagnostic and therapeutic approach to unilateral posterior vertical insufficiency].

Introduction: The aim of this article is to present the diagnostic and therapeutic approach to unilateral posterior vertical insufficiency.

Material And Methods: The authors describe the management protocol.

Results: Posterior vertical insufficiency (PVI) manifests clinically as obliquity of the maxillo-mandibular occlusal plane and bicommissural line, and deviation of the chin.

[Facial asymmetries : how to avoid maxillary osteotomy using mini-screws and bite planes? A case series].

Introduction: The cant of the occlusal plane in the frontal plane reflects facial asymmetry. Its treatment requires close collaboration between the orthodontist and the maxillofacial surgeon. In case of mild cant, treatment consists in coordination of dental arches followed by mandibular osteotomy.

[New perspectives on facial asymmetries thanks to 3D vision].

Introduction: Modern orthodontics is undergoing a revolution with the advent of 3D imaging, offering unprecedented perspectives for the evaluation and treatment of facial asymmetries. These asymmetries, whether mandibular, maxillary, or dental, require a deeper understanding of their causes and their aesthetic and functional impact. Additionally, associated functional imbalances must be addressed for comprehensive management.

[Quantification of Facial Asymmetry : A Comprehensive Review of Methods and Applications].

Introduction: Facial asymmetry, present in all human faces at varying degrees, plays a critical role in clinical fields such as orthodontics, orthognathic and plastic surgeries, and craniofacial reconstruction. Accurate quantification of facial asymmetry is essential for diagnosis, treatment planning, and post-surgical evaluation.

Material And Methods: This article examines contemporary methods for quantifying facial asymmetry, including two-dimensional (2D) and three-dimensional (3D) landmark-based approaches, surface curvature analysis, and advanced image-based techniques.

[The value of studying the cervical spine in craniofacial asymmetries].

Introduction: The relationship between facial asymmetry and cervical anomaly is rarely mentioned in the diagnosis of dento-maxillo-facial orthopaedics. It is regrettable that the study of the cervical spine is often ignored in the etio-pathogenesis of these dysmorphoses, particularly in cases of facial asymmetry.

Objective: The aim is twofold: to encourage orthodontists and maxillofacial surgeons to make a systematic study of the cervical spine in craniofacial dysmorphoses and in particular craniofacial asymmetries, without claiming that they are becoming specialists in cervical spine pathology, and to introduce the necessary training in malformations of this anatomical region as part of the orthodontist specialisation curriculum.

[Diagnosis and management of unilateral temporomandibular ankylosis].

Introduction: Temporomandibular joint ankylosis is defined as permanent jaw constriction with an interincisal mouth opening of less than 30 mm, due to bony, fibro-osseous or fibrous fusion. Ankylosis may be uni- or bilateral. The complications of this ankylosis affect the functions of mastication, swallowing and phonation, sometimes facial morphology, and disturb dental hygiene.

[Comparison of facial asymmetry assessment by frontal teleradiography and 3D imaging].

Introduction: The diagnostic approach to facial asymmetries is classically based, in addition to the clinical examination, on a cephalometric analysis carried out on a frontal radiography. Planning of orthognathic surgery requires a three-dimensional (3D) examination to visualize deformities. Nevertheless, the use of cephalometric analysis on 3D imaging remains clinically modest.

How a gene fuels ear infections.

The DYRK1A enzyme is a pivotal contributor to frequent and severe episodes of otitis media in Down syndrome, positioning it as a promising target for therapeutic interventions.

Ascending aortic replacement versus aortic root replacement in patients with type A aortic dissection involving the aortic root.

Background: Extensive surgical resection of the thoracic aorta in patients with type A aortic dissection (TAAD) is thought to reduce the risk of late aortic wall degeneration and the need for repeat aortic operations.

Objectives: We evaluated the early and late outcomes after aortic root replacement and supracoronary ascending aortic replacement in patients with TAAD involving the aortic root.

Design: Retrospective, multicenter cohort study.

Phonon Involved Photoluminescence of Mn Ions Doped CsPbCl Micro-Size Perovskite Assembled Crystals.

Mn ions doped CsPbCl perovskite nanocrystals (NCs) exhibit superiority of spin-associated optical and electrical properties. However, precisely controlling the doping concentration, doping location, and the mono-distribution of Mn ions in the large-micro-size CsPbCl perovskite host is a formidable challenge. Here, the micro size CsPbCl perovskite crystals (MCs) are reported with uniform Mn ions doping by self-assembly of Mn ions doped CsPbCl perovskite NCs.

Chemical and temporal manipulation of early steps in protein assembly tunes the structure and intermolecular interactions of protein-based materials.

The Drosophila intrinsically disordered protein Ultrabithorax (Ubx) undergoes a series of phase transitions, beginning with noncovalent interactions between apparently randomly organized monomers, and evolving over time to form increasingly ordered coacervates. This assembly process ends when specific dityrosine covalent bonds lock the monomers in place, forming macroscale materials. Inspired by this hierarchical, multistep assembly process, we analyzed the impact of protein concentration, assembly time, and subphase composition on the early, noncovalent stages of Ubx assembly, which are extremely sensitive to their environment.

Dynamic G-Quadruplexes in the Rous Sarcoma Virus Genome: Scaffolds for Protein Interaction and Potential Anti-Viral Targets.

The Rous sarcoma virus (RSV) is an onco-retrovirus that infects avian species such as the chicken (Gallus gallus). RSV is the first oncovirus to be described, and the oncogenic activity of this virus is related to the expression of a tyrosine kinase that induces carcinogenic transformation. Interestingly, we have noted that the RSV genome contains various potential G4-forming sequences.

An International Survey on the Use of a Polyrevitalizing Solution With or Without Other Aesthetic Procedures in the Daily Practice of Aesthetic Physicians.

Objective: NCTF135HA, a versatile polyrevitalizing solution, is a potent agent for enhancing skin quality, radiance, moisture, vitality, and diminishing fine wrinkles caused by aging factors. Data demonstrate a divergence in its application from skin quality enhancement to treatment of vitiligo lesions. To know more precisely about the protocol of use among providers, alone or in combination with other procedures, we performed an international survey.

Exploring low barrier quantum tunneling and structural planarity in 3-methylstyrene conformers: Insights from microwave spectroscopy.

The first ground-state rotational spectrum of 3-methylstyrene (3MS) was measured by Fourier transform microwave spectroscopy under supersonic jet-cooled conditions. Transitions were assigned for two conformers: cis-3MS and trans-3MS. In the cis conformer, the vinyl group is oriented toward the methyl group, while in the trans conformer, it is positioned away from the methyl.

Hinged Carboxylate in the Artificial Distal Pocket of an Iron Porphyrin Enhances CO Electroreduction at Low Overpotential.

To efficiently capture, activate, and transform small molecules, metalloenzymes have evolved to integrate a well-organized pocket around the active metal center. Within this cavity, second coordination sphere functionalities are precisely positioned to optimize the rate, selectivity, and energy cost of catalytic reactions. Inspired by this strategy, an artificial distal pocket defined by a preorganized 3D strap is introduced on an iron-porphyrin catalyst (sc-Fe) for the CO-to-CO electrocatalytic reduction.

Hypotensive Episodes Identified on 24-Hour Ambulatory Blood Pressure and Impaired Cognitive Function: Insights From the SPRINT Study.

Background: Hypotensive episodes detected by 24-hour ambulatory blood pressure (BP) monitoring capture daily cumulative hypotensive stress and could be clinically relevant to cognitive impairment, but this relationship remains unclear.

Methods: We included participants from the Systolic Blood Pressure Intervention Trial (receiving intensive or standard BP treatment) who had 24-hour ambulatory BP monitoring measured near the 27-month visit and subsequent biannual cognitive assessments. We evaluated the associations of hypotensive episodes (defined as systolic BP drops of ≥20 mm Hg between 2 consecutive measurements that reached <100 mm Hg) and hypotensive duration (cumulative time of systolic BP <100 mm Hg) with subsequent cognitive function using adjusted linear mixed models.

Clinical significance of stratifying prostate cancer patients through specific circulating genes.

Patient stratification remains a challenge for optimal treatment of prostate cancer (PCa). This clinical heterogeneity implies intra-tumoural heterogeneity, with different prostate epithelial cell subtypes not all targeted by current treatments. We reported that such cell subtypes are traceable in liquid biopsies through representative transcripts.