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Editor-in-Chief articles of choice and comments from January to June 2024

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World Journal of Gastroenterology 2024年第34期30卷 3875-3882页

作者： andrzej S Tarnawski Department of Gastroenterology Research University of California Irvine and the Veterans Administration Long Beach Healthcare SystemLong BeachCA 90822United States

As the Editor-in-Chief of the World Journal of Gastroenterology,I carefully review all articles every week before a new issue’s online publication,including the title,clinical and research importance,originality,novelty,and ratings by the peer *** on this review,I select the papers of choice and suggest pertinent changes(e.g.,in the title or text)to the company editors responsible for *** process,while time-consuming,is essential for assuring the quality of publications and highlighting important articles that readers may revisit.

关键词： Papers of choice Weekly review Suggested changes/revisions Hepatocellular carcinoma Pancreatic cancer Liver cirrhosis Liver injury Gastric cancer Colorectal cancer Inflammatory bowel diseases

Editor-in-Chief articles of choice and comments at the year-end of 2023

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World Journal of Gastroenterology 2024年第1期30卷 1-8页

作者： andrzej S Tarnawski Department of Gastroenterology Research University of California Irvine and the Veterans Administration Long Beach Healthcare SystemLong BeachCA 90822United States

As the Editor-in-Chief of World Journal of Gastroenterology,every week prior to a new issue’s online publication,I perform a careful review of all encompassed articles,including the title,clinical and/or research importance,originality,novelty,and ratings by the peer *** on this review,I select the papers of choice and suggest pertinent changes(e.g.,in the title)to the Company Editors responsible for *** process,while time-consuming,is very important for assuring the quality of publications and highlighting important articles that Readers may revisit.

关键词： Papers of choice Careful weekly review Suggested changes/revisions Hepatocellular carcinoma Pancreatic cancer Liver cirrhosis Liver injury Gastric cancer Colorectal cancer Inflammatory bowel diseases

Early response of understory vegetation to the mass dieback of Norway spruce in the European lowland temperate forest

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Forest Ecosystems 2024年第2期11卷 214-225页

作者： Jan Marek Matuszkiewicz andrzej N.Affek Piotr Zaniewski Ewa Kołaczkowska Faculty of Geography and Regional Studies University of WarsawPoland Institute of Geography and Spatial Organization Polish Academy of SciencesPoland Institute of Forest Sciences Warsaw University of Life SciencesPoland

Spruce-dominated forests are commonly exposed to disturbances associated with mass occurrences of bark *** dieback of trees triggers many physical and chemical processes in the ecosystem resulting in rapid changes in the vegetation of the lower forest *** aimed to determine the response of non-tree understory vegetation to the mass dieback of Norway spruce(Picea abies)in the first years after the disturbance caused by the European spruce bark beetle(Ips typographus)*** study area was the Białowieża Biosphere Reserve covering the Polish part of the emblematic Białowieża Forest,in total 597km^(2).The main data source comprised 3,900 phytosociological relevés(combined spring and summer campaigns)collected from 1,300 systematically distributed forest sites in 2016–2018–the peak years of the bark beetle *** found that the understory responded immediately to mass spruce dieback,with the most pronounced changes observed in the year of the disturbance and the subsequent ***-tolerant forest species declined in the initial years following the mass spruce dieback,while hemicryptophytes,therophytes,light-demanding species associated with non-forest seminatural communities,as well as water-demanding forest species,*** acetosella,the most common understory species in the Białowieża Forest,showed a distinct fluctuation pattern,with strong short-term expansion right after spruce dieback,followed by a gradual decline over the next 3–4 years to a cover level 5 percentage points lower than before the ***,our study revealed that mass spruce dieback selectively affects individual herb species,and their responses can be directional and non-directional(fluctuation).Furthermore,we demonstrated that the mass dieback of spruce temporarily increases plant species diversity(α-diversity).

关键词： Forest disturbance Bark beetle outbreak Picea abies Ips typographus Response of understory vegetation Herbaceous species Biaowieza Forest

An easy,convenient statistical method to analyze bark beetle populations

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林业研究:英文版 2023年第6期34卷 2027-2040页

作者： andrzej Borkowski Department of Environmental Biology Institute of BiologyJan Kochanowski UniversityUniwersytecka 7 Str25-406 KielcePoland

A non-invasive method to estimate the number of Trypodendron lineatum holes on dead standing pines(Pinus sylvestris L.)was developed using linear and nonlinear estimations.A clas sical linear regres sion model was first used to analyze the relationship between the number of holes caused by *** on selected stem units and the total number of holes on an entire dead stem of ***,to obtain a better fit of the regression function to the data for the stem unit selected in the first step,piecewise linear regression(PLR)was ***,in an area used to evaluate wood decomposition(method validation),the total and mean numbers of *** holes were estimated for single dead trees and for a sample(n=8 dead trees).Data were collected in 2009(data set D1),in 2010-2014(data set D2)and in 2020(data set D3)in forests containing *** located within Suchedniow-Oblegorek Landscape Park,Poland.A model was constructed with three linear *** evaluation of model accuracy showed that it was highly effective regardless of the density of *** holes and sample *** method enables the evaluation of the biological role of this species in the decomposition of dead standing wood of *** in strictly protected areas.

关键词： Trypodendron lineatum Pinus sylvestris Population Wood decomposition Forest management Piecewise linear regression

Various Software Packages for Analysis of Nuclear Magnetic Resonance Spectroscopic Data

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光谱学与光谱分析 2017年第10期37卷 3307-3314页

作者： Monika Cichocka andrzej Urbanik Department of Radiology Medical College Jagiellonian University

The magnetic resonance spectroscopy(MRS)results are greatly influenced by reconstruction of the spectrum and quantitative *** of this requirement a number of programs dedicated to MRS data analysis were *** selection and use of appropriate software is crucial not only in clinical procedures,but also while carrying out scientific *** choice of the software to suit the user's needs should be based on the analysis of the functionality of the *** is particularly important from the user's viewpoint to identify what data can be loaded and processed in the *** specific programs allow the user different degree of control over analysis ***,the programs for MRS data analysis differ in terms of the applied signal processing *** aim of this work,therefore,is to review available packages designed for MRS data analysis,taking into account their capabilities and limitations.

关键词： NMR data Analysis Software packages

Some parameters of coal methane system that cause very slow release of methane from virgin coal beds(CBM)

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International Journal of Mining Science and Technology 2017年第2期27卷 321-326页

作者： andrzej Olajossy Faculty of Mining and Ceoengineering ACH University of Science and TechnologyKrakow 30-059Poland

In some worldwide hard coal basins recovery of methane from virgin coal beds is difficult. In general,mentioned difficulties are related to geo-mechanical, petrographical and physical-chemical properties of coals in question, occurring for example in the Bowen Basin(Australia) or the Upper Silesian Coal Basin(Poland). Among numerous properties and parameters, the following are very essential: susceptibility of coal beds to deformation connected with coal stress state change and contemporary shrinkage of the coal matrix during methane desorption. Those adverse geo-mechanical and physical-chemical effects are accompanied by essential change of the porous coal structure, which under these disadvantageous conditions is very complex. This study aims to show difficulties, which occur in phase of recognition of the methane-reach coal deposit. Volume absorbed methane(not surface adsorbed) in sub-micropores having minimal size comparable with gas molecule diameter must possess energy allowing separation of the nodes and methane release to micropores.

关键词： Coal bed methane Porosity Slow desorption Diffusion Virgin bed

Biologically-Inspired Water Propulsion System

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Journal of Bionic Engineering 2013年第3期10卷 274-281页

作者： andrzej Sioma Department of Process Control AGH University of Science and Technology Krak6w Poland

Most propulsion systems of vehicles travelling in the aquatic environment are equipped with propellers. Observations of nature, however, show that the absolute majority of organisms travel through water using wave motion, paddling or using water jet power. Inspired by these observations of nature, an innovative propulsion system working in aquatic environment was developed. This paper presents the design of the water propulsion system. Particular attention was paid to the use of paddling techniques and water jet power. A group of organisms that use those mechanisms to travel through water was selected and analysed. The results of research were used in the design of a propulsion system modelled simultaneously on two methods of movement in the aquatic environment. A method for modelling a propulsion system using a combination of the two solutions and the result were described. A conceptual design and a prototype constructed based on the solution were presented. With respect to the solution developed, studies and analyses of selected parameters of the prototype were described.

关键词： nature-oriented design swimming of molluscs and water beetles jet propulsion bionic propulsion system

Technical problems and non destructive testing of rock bolt support systems in mines

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International Journal of Coal Science & Technology 2023年第1期10卷 124-135页

作者： andrzej Staniek Central Mining Institute Plac Gwarkow 140-166 KatowicePoland

The problem of proper assessment of the technical functionality of rock bolt support systems is still *** research centers have undertaken eforts to diagnose and monitor the technical state of such a support system used in mines and *** that aim the method of quality assessment of grouted rock bolts was invented and a relevant apparatus was *** method concerns non-destructive identifcation of discontinuity of a resin layer(grout)surrounding rock *** method is based on an impact excitation of a rock bolt and uses modal analysis *** that the installed rock bolt acts as an oscillator,diferent lengths and positions of grouting discontinuity alter its modal *** extraction of these modal parameters,of which a resonant frequency is seen as the most valued,enable the relevant identifcation of grout *** constructing a prototype version and validating the results for known cases of resin discontinuity in an experimental coal mine,the apparatus fulflling ATEX requirements was *** that version was also verifed both in laboratory conditions and in an experimental coal *** necessary for proper identifcation of discontinuity length,the reference data base was developed and elaborated consisting of a very large number of fnite element models(FE models),namely discontinuity *** models encountered diferent rock bolt lengths and diameters,diferent rock strata parameters and diferent positions and lengths of resin *** the method was used in a working coal mine to monitor a technical state of rock bolt support system mounted to reinforce long underground *** data base was utilized as reference for investigated rock bolts.

关键词： Rock Rock bolt Safety Modal analysis Mining

Toward integrated detection and graphene-based removal of contaminants in a lab-on-a-chip platform

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Nano Research 2017年第7期10卷 2296-2310页

作者： andrzej Chalupniak Arben Merkoci Catalan Institute of Nanoscience and Nanotechnology (ICN2) CSIC and The Barcelona Institute of Science and Technology Campus UAB Bellaterra 08193 Barcelona Spain ICREA Pg. Lluis Companys 23 08070 Barcelona Spain

A novel miniaturized microfluidic platform was developed for the simultaneous detection and removal of polybrominated diphenyl ethers （PBDEs）. The platform consists of a polydimethylsiloxane （PDMS） microfluidic chip for an immunoreaction step, a PDMS chip with an integrated screen-printed electrode （SPCE） for detection, and a PDMS-reduced graphene oxide （rGO） chip for physical adsorption and subsequent removal of PBDE residues. The detection was based on competitive immunoassay-linked binding between PBDE and PBDE modified with horseradish peroxidase （HRP-PBDE） followed by the monitoring of enzymatic oxidation of o-aminophenol （o-AP） using square wave anodic stripping voltammetry （SW-ASV）. PBDE was detected with good sensitivity and a limit of detection similar to that obtained with a commercial colorimetric test （0.018 ppb）, but with the advantage of using lower reagent volumes and a reduced analysis time. The use of microfluidic chips also provides improved linearity and a better reproducibility in comparison to those obtained with batch-based measurements using screen-printed electrodes. In order to design a detection system suitable for toxic compounds such as PBDEs, a reduced graphene oxide-PDMS composite was developed and optimized to obtain increased adsorption （based on both the hydrophobicity and rr-v~ stacking between rGO and PBDE molecules） compared to those of non-modified PDMS. To the best of our knowledge, this is the first demonstration of electrochemical detection of flame retardants and a novel application of the rGO-PDMS composite in a biosensing system. This system can be easily applied to detect any analyte using the appropriate immunoassay and it supports operation in complex matrices such as seawater.

关键词： electrochemistry microfluidics graphene oxide flame retardants lab on a chip polydimethylsiloxane