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Superintegrated conformable organic transistors based on a universal microlithographic strategy
Temporal matching as an accounting principle for green electricity claims
Abstract Labeling electricity as green typically relies on annual volumetric matching of certificates. Recent studies have shown that hourly matching can improve the environmental effectiveness of green electricity procurement. Responding to the European Union’s push for more transparent and reliable green products, we assess how stricter temporal matching affects green electricity claims. Using data from the European certificate and electricity market, we analyze quarterly, monthly, weekly, daily, and hourly matching. We find substantial seasonal and intra-day mismatches between green electricity supply and demand that remain hidden under annual matching. As certificates already allow monthly granularity, we propose a two-phase transition: short-term adoption of quarterly or monthly matching to reduce seasonal accounting distortions, followed by hourly matching to address increasing day-night disparities. Fully integrating storage systems into certificate schemes is crucial for this transition. Our findings inform current policy debates, such as the revision of the Greenhouse Gas Protocol Scope 2 Guidance.
Endogenous structure of antimalarial target PfATP4 reveals an apicomplexan-specific P-type ATPase modulator
Designing self-adaptative cyclized polyacrylonitrile-polyethyleneimine conjugates enhance uranium extraction from natural seawater
Correction: Occupational and geographical differentials in financial protection against healthcare out-of-pocket payments in Nepal: Evidence for universal health coverage
Daily briefing: Time to retire the Turing test?
AI language models killed the Turing test: do we even need a replacement?
Disconnecting part of the brain sends it into a deep sleep
Breastfeeding boosts immune cells that protect against breast cancer
First-in-human application of dynamic fluoroscopic analysis to quantify intersegmental motion in mandibular free flap reconstruction
Abstract Osseous non-union following free flap reconstruction of segmental mandibular defects can prolong patients’ dental rehabilitation. Various plating systems have been developed to optimize biomechanical fixation, but healing may be retarded. Quantifying intersegmental micromovements could help monitor healing but remains challenging. This study investigates a novel method to visualize segmental movements during healing using a fluoroscopy-based approach. To track segment movements, tantalum beads were implanted intraoperatively in the osseous flap and native mandibular segments. Additionally, single-plane fluoroscopic imaging was performed to assess bead position at maximum mouth opening and intercuspation. Bead positions were merged as three-dimensional objects. Intersegmental movements were quantified using model-based roentgen stereophotogrammetry (mbRSA). Exemplarily, preliminary images were collected from one patient. Fluoroscopic imaging with mbRSA effectively displayed movements and allowed quantification. Translation and rotation were assessed between the native mandible and the flap during maximum mouth opening and intercuspation. For the first time, our analyses demonstrate the feasibility of quantifying segment mobility during healing. This first in men study illustrates the feasibility of the method to monitor intersegmental movements in cases of maxillofacial reconstructions. Further research involving larger patient cohorts is necessary to identify relevant thresholds and differentiate from those that result in lack of healing.
Correction: Development of a leaf metabolite-based intact sample distinguishing algorithm for the three varieties of Panax Vietnamensis
Synthesis of copper schiff base nanocomplex as green inhibitor for 316 L stainless steel corrosion in an aggressive acidic environment
Abstract Using inhibitors is a typical way to mitigate metal degradation by forming barriers or altering reactions. Herein, the nanocomplex of copper(II) ion with 1-((E)-(2-mercaptophenylimino) methyl) naphthalen-2-ol (H2L) Schiff base ligand was successfully synthesized via an environmentally friendly approach using Coriandrum Sativum (CS) extract in ethanol. According to transmission electron microscopy (TEM), the average particle size of the produced nanocomplex was 12.71 nm. Using various electrochemical and physical techniques, namely, open-circuit potential (OCP), impedance spectroscopy (EIS), potentiodynamic polarization (PDP), and SEM/EDX methods, the inhibitory effect of green Cu nanocomplex (Cu2L2) on the corrosion of 316 L stainless steel in a harsh mixed acid solution (1 M HCl + 1 M HNO3) was scrutinized. The findings revealed that the Cu nanocomplex exhibited mixed-type inhibition behavior, with a maximum efficiency of 85.56% achieved at 600 ppm addition. EIS results indicated an increase in the charge transfer resistance and a decrease in the double-layer capacitance by increasing Cu2L2 concentration in the ambient aggressive acidic solution. Isotherm fitting analysis suggested that Cu nanocomplex adsorption on the stainless steel surface followed the Langmuir isotherm model. Density functional theory (DFT) calculations further supported the experimentally obtained findings. The molecular dynamics (MD) simulations also endorsed that the Cu2L2 inhibitor lay flat on the metal surface, indicating better surface coverage.
Effects of zinc on growth and physiological characteristics and transformation enrichment of Arthrospira platensis Gom
Identifying potential genetic biomarkers for sperm dysfunction through whole-genome sequencing
Abstract Infertility affects approximately 15% of couples globally, with male factors contributing to nearly 50% of cases. However, the genetic basis of male infertility, particularly idiopathic forms, remains poorly understood. In this study, we performed whole-genome sequencing (WGS) on eight normozoospermic men and nine men with oligozoospermia, asthenozoospermia, or both, followed by Sanger sequencing for validation. Comparative analysis revealed a higher burden of genomic variants in the sperm dysfunction infertility group (SDIG) than in the normozoospermic group (NG). Several nonsynonymous missense variants were exclusively identified in SDIG, including DNAJB13 (p.Ile159Asn), MNS1 (p.Asp217Asn), DNAH6 (p.Ser2210Leu), HYDIN (p.Gly901Ala, p.Arg568Trp), DNAH7 (p.Arg1486His, p.Gly171Arg, p.Ser2368Phe), DNAH17 (p.Ala3135Val), and CATSPER1 (p.Arg558Trp). These variants are predicted to affect protein structure, stability, or interactions, and were classified as variants of uncertain significance. Moreover, several variants were classified as likely pathogenic: a frameshift mutation in DNAH2 (p.Lys1414ArgfsTer29) likely resulting in a truncated protein, a missense mutation in CFAP61 (p.Arg568Trp) predicted to impair protein function, and two nonsense mutations in FSIP2 (p.Gln5809Ter and p.Cys8Ter) introducing premature stop codons. These alterations implicate key components of sperm flagellar function and motility. Our findings reveal novel and potentially deleterious genetic variants associated with male infertility, offering new insights into its molecular underpinnings and informing future diagnostic and therapeutic approaches.