Results 131 to 140 of about 1,062,614 (301)

Cost Pass‐Through in Crisis: Evidence From the German Malt‐Beer Supply Chain

open access: yesAgribusiness, EarlyView.
Abstract Global agri‐food supply chains are increasingly exposed to geopolitical shocks, climate volatility, and market consolidation, factors that disrupt traditional price relationships and reshape market power dynamics. Nowhere is this more visible than in the brewing sector, where agricultural raw materials meet complex industrial processing and ...
Nikolas Bublik, Lukáš Čechura
wiley   +1 more source

Retinal Vessel Segmentation: A Comprehensive Review From Classical Methods to Deep Learning Advances (1982–2025)

open access: yesAdvanced Intelligent Systems, EarlyView.
Four decades of retinal vessel segmentation research (1982–2025) are synthesized, spanning classical image processing, machine learning, and deep learning paradigms. A meta‐analysis of 428 studies establishes a unified taxonomy and highlights performance trends, generalization capabilities, and clinical relevance.
Avinash Bansal   +6 more
wiley   +1 more source

π‐Enlargement in Porphyrin Macrocycles at Interfaces

open access: yesAngewandte Chemie, EarlyView.
On‐surface synthesis of a 20‐π free‐base expanded porphyrin, by depositing onto a hot Ag(111) substrate an 18‐π free‐base precursor equipped with ‐CF3 functional groups ABSTRACT Porphyrins are essential heteroatomic macrocycles, fundamental to both biological systems and advanced technology.
Ana Barragán   +11 more
wiley   +2 more sources

Bronchoscopy Robot with Enhanced Flexibility and Stability via Multi‐Segment Variable Stiffness Catheter

open access: yesAdvanced Intelligent Systems, EarlyView.
This work presents a magnetic bronchoscopy robot with a novel multi‐segment variable stiffness catheter. This catheter can not only move flexibly in the narrow bronchi but also harden according to the need to provide support. Combined with remote wireless magnetic field drive, it provides a more precise and effective solution for biopsy of deep lung ...
Shucong Yin   +10 more
wiley   +1 more source

Czech Republic in Respect of the Real Convergence

open access: yes
In spite of the fact that the Czech Republic, on its entry into the European Union, undertook, within the shortest possible time limit, to meet all the terms and conditions which are required for adoption of the common European currency, the Euro, it is ...
Tuleja, Pavel
core  

The Paradox of Czech Crusaders: Will They Ever Learn the Corruption Lesson? Corruption and Anticorruption in the Czech Republic.

open access: yes, 2001
It has been documented the state of corruption in the Czech Republic and the measures introduced to fight it. It covers sectors of society and economy according to their importance of a consequential corruption hazard. It is also described the government'
Lizal, Lubomir   +2 more
core  

Photocatalytic Lignin Depolymerization and Cross‐Coupling With Alcohols to Produce Unsymmetric Aromatic Diols

open access: yesAngewandte Chemie, EarlyView.
A photocatalytic approach for efficient one‐pot direct lignin depolymerization and subsequent cross‐coupling with alcohols for the production of unsymmetrical aromatic diols has been demonstrated. ABSTRACT Conversion of lignin into chemical products typically involves two separate steps, such as depolymerization and subsequent upgrading of monomers ...
Hongji Li   +7 more
wiley   +2 more sources

The Changing Landscape of Maintenance Therapy in Newly Diagnosed Multiple Myeloma: A Systematic Review With Network Meta‐Analysis of the European Myeloma Network (EMN)

open access: yesAmerican Journal of Hematology, EarlyView.
Our meta‐analysis showed significant improvement of PFS with lenalidomide, proteasome inhibitors, and CD38‐based therapies. A significant OS benefit was noted only with lenalidomide in transplant‐eligible (TE) patients, while CD38‐directed therapy showed a trend toward improved OS.
Heinz Ludwig   +25 more
wiley   +1 more source

First evidence of a paedomorphic population of the smooth newt (Lissotriton vulgaris) in the Czech Republic

open access: yes, 2013
Facultative paedomorphosis is an environmentally induced polymorphism that is well known for many caudate species including newts. Although facultative paedomorphosis has been documented in some smooth-newt populations, records of entirely paedomorphic ...
Václav Gvoždík   +5 more
core   +1 more source

Single‐Atom Iron‐Catalyzed Oxidative Esterification: From Methylarenes to the Upcycling of Polystyrene and Lignin‐Derived Feedstocks

open access: yesAngewandte Chemie, EarlyView.
Heterogeneous iron‐catalyzed environmentally benign and sustainable CH‐oxidative esterification methodology has been developed for the synthesis of esters. This challenging reaction has been achieved by the rational design of specific single atom iron‐based catalyst with Fe‐N4 active centers, which empowered the oxidative esterification of methyl and ...
Zhuang Ma   +8 more
wiley   +2 more sources

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