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Western Tethyan Epeiric Ramp Setting in the Early Triassic： An Example from the Central Dinarides (Croatia)

Journal of Earth Science 2018年第4期29卷 806-823页

作者： Dunja Aljinovic Micha Horacek Leopold Krystyn Sylvain Richoz Tea Kolar-Jurkovsek Duje Smircic bogdan Jurkovsek University of Zagreb Faculty of Mining Geology and Petroleum Engineering Pierottijeva 6 Zagreb 10000 Croatia BLT Wieselburg HBLFA Francisco-Josephinum Rottenhauserstr. 1 Wieselburg 3250 Austria Institute of Paleontology Vienna University A lthanstrafle 14 Vienna 1090 Austria Lund University Lithosphere and Biosphere science Solvegatan 12 Lund 22362 Sweden Geological Survey of Slovenia Dimiceva Ulica 14 Ljubljana 1000 Slovenia

In the central part of the External Dinarides in Plavno, Croatia, near Knin, a remarkably thick （927.5 m） Early Triassic depositional sequence was investigated. The Plavno sequence starts in the EarlyGriesbachian and ends with a continuous transition into the Anisian strata. A complete 13C isotope curve has been achieved and combined with conodonts, bivalves and ammonoids to establish and correlate stage and substage boundaries. The 613C curve is consistent with former studies. It displays a general increase from the Griesbachian to a prominent maximum beyond the ＋8%0 amplitude around the Dienerian-Smithian boundary （DSB）, followed by a steep and continuous decline to low, negative values in the Smithian. Around the Smithian-Spathian boundary （SSB） a steep rise to a second maximum occurred. It is followed by a saw-tooth shaped decline in the Spathian and a similar increase to a peak at the Spathian-Anisian boundary （SAB）. Sedimentologically, the Plavno sequence is interpreted as having been deposited on an extensive epeiric ramp under long-term transgressive conditions, sharing depositional characteristics of both the epeiric platform and the carbonate ramp. The entire Plavno sequence was deposited above the storm-wave base and was storm influenced. Three informal members are differentiated： 1） the dolostone member （Early Griesbachian）; 2） the silicielastic member （red-coloured shale, siltstone, sandstone with oolitic/bioclastie grainstone intercalations）, which can be further divided into lower, middle and upper intervals （Late Griesbachian, Dienerian and Smithian）; and 3） the mudstone member （grey lime mudstones, marls and calcisiltites with common ammonoids and gastropods- Spathian）. The Plavno sequence is compared with other western Tethyan sections. Observed differences stem from local controls on deposition in the overall shallow marine environment.

关键词： Early Triassic Dinarides epeiric ramp 6Z3C isotope curve litho- and biostratigraphy.

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Growth performance,gastrointestinal weight,microbial metabolites and apparent retention of components in broiler chickens fed up to 11%rice bran in a corn-soybean meal diet without or with a multi-enzyme supplement

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Animal Nutrition 2019年第1期5卷 41-48页

作者： Juan Sanchez Aizwarya Thanabalan Tanka Khanal Rob Patterson bogdan A.Slominski Elijah Kiarie Department of Animal Biosciences University of Guelph Canadian Bio-Systems Inc. Department of Animal Science University of Manitoba

We investigated the effects of adding up to 11% rice bran(RB) in corn-soybean meal diets fed to broiler chickens without or with a multi-enzyme supplement(MES). The MES supplied xylanase, b-glucanase invertase, protease, cellulase, a-amylase and mannanase with targeted activity of 2,500, 300, 700, 10,0001,200, 24,000, and 20 U/kg of feed, respectively. The study used a two-phase feeding program(starter d 0 to 24; finisher, d 25 to 35) with RB added at 5% and 11%, respectively creating 4 diets in each phase Diets were iso-caloric and iso-nitrogenous and contained phytase(500 FTU/kg) and TiO_2 as a digestibility marker. Three hundred and sixty d-old male Ross 708 broiler chicks were placed in cages based on BW(15 birds/cage) and allocated to 4 diets(n = 6). Birds had free access to feed and water. Body weight and feed intake were recorded. Excreta samples were collected 3 d prior to the end of each phase for apparent retention(AR) of components. Samples of birds were sacrificed on d 24 and 35 for gut weight and ceca digesta for organic acid content. There was no interaction(P > 0.10) between RB and MES on BWG and FCR in starter or finisher phase. In finisher phase, birds fed MES had better BWG(961 versus 858 g) and FCR(1.69 versus 1.86) than birds fed non-MES diets(P < 0.01). Feeding RB reduced(P = 0.02) BWG in finisher phase resulting in lower d 35 BW. Birds fed RB had higher(P 0.01) gizzard weight on d 24 and 35 than non-RB birds. An interaction(P 0.01) between RB and MES on concentrations of propionic and iso-butyric acids in ceca digesta showed that MES reduced these acids in non-RB diet. The AR of gross energy was higher(P < 0.02) for MES versus non-MES birds in starter and finisher phases. In conclusion independently, RB increased gizzard weight and reduced final BW whereas MES improved growth and energy utilization.

关键词： Broiler chickens Growth performance Gut weight Microbial activity Multi-enzyme supplement Rice bran

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Surrogate markers of mucosal healing in inflammatory bowel disease:A systematic review

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World Journal of Gastroenterology 2021年第16期27卷 1828-1840页

作者： Monica State Lucian Negreanu Theodor Voiosu Andrei Voiosu Paul Balanescu Radu bogdan Mateescu Department of Gastroenterology Colentina Clinical HospitalBucharest 020125Romania Department of Gastroenterology Emergency University HospitalBucharest 050098Romania Carol Davila University of Medicine and Pharmacy Bucharest 020021Romania Department of Internal Medicine and Research Methodology Colentina Clinical HospitalBucharest 020125Romania

Mucosal healing(MH)has emerged as a key therapeutic target in inflammatory bowel disease(IBD),and achievement of this goal is documented by endoscopy with ***,colonoscopy is burdensome and invasive,and substitution with an accurate noninvasive biomarker is *** To summarize published data regarding the performance of noninvasive biomarkers in assessing MH in IBD *** We conducted a systematic review of studies that reported the performance of biomarkers in diagnosing MH in patients with *** main outcome measure was to review the diagnostic accuracy of serum and fecal markers that showed promising utility in assessing *** We screened 1301 articles,retrieved 46 manuscripts and included 23 articles for full-text *** majority of the included manuscripts referred to fecal markers(12/23),followed by circulatory markers(8/23);only 3/23 of the included manuscripts investigated combined markers(serum and/or fecal markers).Fecal calprotectin(FC)was the most investigated fecal marker for assessing *** ulcerative colitis,for cutoff levels ranging between 58 mcg/g and 490 mcg/g,the sensitivity was 89.7%-100%and the specificity was 62%-93.3%.For Crohn’s disease,the cutoff levels of FC ranged from 71 mcg/g to 918 mcg/g(sensitivity 50%-95.9%and specificity 52.3%-100%).The best performance for a serum marker was observed for the endoscopic healing index,which showed a comparable accuracy to the measurement of FC and a higher accuracy than the measurement of serum C-reactive *** Several promising biomarkers of MH are emerging but cannot yet substitute for endoscopy with biopsy due to issues with reproducibility and standardization assessing *** ulcerative colitis,for cutoff levels ranging between 58 mcg/g and 490 mcg/g,the sensitivity was 89.7%-100%and the specificity was 62%-93.3%.For Crohn’s disease,the cutoff levels of FC ranged from 71 mcg/g to 918 mcg/g(sensitivity 50%-95.9%and specificity 52.3%-100%).The bes

关键词： Inflammatory bowel disease Ulcerative colitis Crohn’s disease Biomarkers Serum Fecal Mucosal healing

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Potential roles of functional bacterial amyloid proteins,bacterial biosurfactants and other putative gut microbiota products in the etiopathogeny of Parkinson’s Disease

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BIOCELL 2021年第1期45卷 1-16页

作者： EMILIA MANOLE LAURA DUMITRESCU CRISTINA NICULIȚE bogdan OVIDIU POPESCU LAURA CRISTINA CEAFALAN Victor Babeș”National Institute of Pathology Bucharest050088Romania Colentina Clinical Hospital Bucharest020125Romania Carol Davila”University of Medicine and Pharmacy Bucharest020021Romania

An increasing number of studies provide evidence for the existence of a microbiota-gut-brain axis and its potential involvement in the development of sporadic Parkinson’s disease and other neurodegenerative *** neuropathologic hallmark of Parkinson’s disease is the presence of brain intraneuronal aggregates of misfolded alpha-synuclein,known as Lewy *** gut microbiota products may trigger alpha-synuclein conformational changes in the neurons of the enteric nervous system,which can then spread to the brain in a prion-like fashion through the vagus *** may interfere with neuroinflammatory pathways and susceptibility to *** this review,we assess the potential role of putative gut microbiota products in the etiopathogeny of Parkinson’s disease,with a special emphasis on functional bacterial amyloid proteins,bacterial biosurfactants,endotoxins and short-chain fatty *** possible roles of molecular hydrogen,a common byproduct of bacterial fermentation,are also addressed.

关键词： Alpha-synuclein Endotoxins Short-chain fatty acids

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基于一种优化算法的大坝变形性态模型

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岩土工程学报 2008年第11期30卷 1637-1642页

作者： Radu Popa bogdan Popa Liana Vuta Faculty of Power Engineering University Politehnica of Bucharest Spl. Independentei 313 sect. 6 Romania

大型水库大坝安全监测系统的监测数据可用来建立多种重要的结构安全状态参数下的预测模型。提出了一种基于基因算法的非线性、退化性态模型。以大坝顶部的上、下游位移作为状态参数为例,以倒垂数据作为数据输出,库水位和气温以及前7,15... 详细信息

大型水库大坝安全监测系统的监测数据可用来建立多种重要的结构安全状态参数下的预测模型。提出了一种基于基因算法的非线性、退化性态模型。以大坝顶部的上、下游位移作为状态参数为例,以倒垂数据作为数据输出,库水位和气温以及前7,15,30和60d的平均值作为外在影响因子。选取坝高58m、坝长190m的Herculane拱坝的332个数据集作为输入-输出参数,时间序列为2000年1月—2007年6月。从这个数据序列获得回归系数,并进行检验确认。同理,可得其他参数下性态预测模型。这些模型能够解释实时监测中的数据,并能迅速辨识某些情况下的大坝安全潜在风险。

关键词：大坝位移优化算法

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Use of Differential Pulse Polarography and Adsorptive Stripping Tensammetry for Investigation of Gas Stripping Separation Of Nonionic Surfactants

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分析测试学报 1992年第3期 9-12页

作者： Zenon Lukaszewski,Andrzej Szymanski,bogdan Wyrwas Institute of Chemistry Technical University of Poznan ul. Piotrowo 3 60-965 Poznan Poland Institute of Chemistry Technical University of Poznan ul. Piotrowo 3 60-965 Poznan Poland Institute of Chemistry Technical University of Poznan ul. Piotrowo 3 60-965 Poznan Poland

Methods for determination of nonionic surfactants in surface water and wastewater have not been satisfactory since yet. Wickbold's method is commonly used forsuch a purpose (1). This method consists of three time-cons... 详细信息

关键词： Use of Differential Pulse Polarography and Adsorptive Stripping Tensammetry for Investigation of Gas Stripping Separation Of Nonionic Surfactants

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Micromorphological description of vernacular cob process and comparison with rammed earth

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Frontiers of Architectural Research 2020年第1期9卷 203-215页

作者： Erwan Hamard Cécilia Cammas Blandine Lemercier bogdan Cazacliu Jean-Claude Morel IFSTTAR MASTGPEMF-44344BouguenaisFrance INRAP UMR 5140AgroParisTechF-78850Thiverval-GrignonFrance UMR SAS AGROCAMPUS OUESTINRAF-35042RennesFrance Faculty of Engineering Environment and ComputingCentre for the Built and Natural EnvironmentCoventry UniversityCoventryCV15FBUK

Past builders have developed very low-embodied energy construction techniques optimizing the use of local building *** techniques are a source of inspiration for modern sustainable ***,this know-how was orally transmitted and was lost as earth construction fell into disuse during the 20th century in European *** absence of written documents makes necessary to use an archaeological approach in order to rediscover these construction *** analysis of thin sections collacted in earth building walls was used for the first time to describe cob construction technique and highlighted several typical pedofeatures allowing to clearly identifying this ***,a first comparison of the cob and rammed earth micromorphological features permitted to identify two key factors to distinguish these two techniques,the manufacturing state(solid or plastic)and the organization of the material in the wall.

关键词： Cob Rammed earth Micromorphology Architectural heritage Pedology

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Risk Premiums and Financial Stability

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Journal of Modern Accounting and Auditing 2011年第8期7卷 792-798页

作者： bogdan Moinescu Academy of Economic Studies Bucharest Romania

The collective revelation of credit institutions as regards the imminence of specific risks materialising, which often follows long periods of underestimating probable losses, can trigger a broad-based financial deleveraging via an overly high upsurge in banks＇ risk premiums vis-a-vis the dynamics of fundamentals underlying loan repayment capability. In this context, this paper seeks to investigate the banking sector＇s internal mechanisms that might bring about a negative spiral of credit risk by building a model for the interaction between the increase of the risk premium and that of net interest income and provisioning rate. Statistical results confirm that a higher risk premium is one of the major determinants of credit default in Romania and its excessive widening could affect financial stability in Romania.

关键词： risk premium financial stability negative spirals of credit risk financial deleveraging CDS (credit default swap) spread

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A Universal Binding Mechanism in Molecular Covalent Bonding and Nucleon-Nucleon Interaction

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Journal of Modern Physics 2021年第9期12卷 1237-1247页

作者： Nicolae bogdan Mandache National Institute for Laser Plasma and Radiation Physics Magurele Romania

In the hydrogen molecular ion, the kinetic energy lowering of the electron is associated with its delocalization due to electron exchange between the two protons of the molecule. This decrease in the kinetic energy of the exchanged electron in the hydrogen molecular ion and the decrease in the dynamical mass of the two exchanged pions in the nucleon-nucleon interaction are at the origin of the attraction mechanism in the molecular covalent bonding and in the nuclear interaction. Based on this unitary approach of the attraction mechanism, the formulas of molecular potential and central nucleon-nucleon potential were derived. The decrease in the mass of the exchanged pions in the nucleon-nucleon bound state, actually means the decrease in the mass of the nucleons. This nucleon mass decrease could be a manifestation of the partial chiral symmetry restoration in nuclear matter.

关键词： Electron and Pion Exchange Dynamical Mass Molecular and Central Nucleon-Nucleon Potentials Nucleon Mass Decrease Partial Chiral Symmetry Restoration

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A Physical Insight into the Origin of the Corrections to the Magnetic Moment of Free and Bound Electron

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Journal of Modern Physics 2020年第9期11卷 1301-1311页

作者： Nicolae bogdan Mandache National Institute for Laser Plasma and Radiation Physics Lab 22 Bucharest-Magurele Romania

The main goal of the present work is a unitary approach of the physical origin of the corrections to the magnetic moment of free and bound electron. Based on this approach, estimations of lowest order corrections were easily obtained. In the non-relativistic limit, the Dirac electron appears as a distribution of charge and current extended over a region of linear dimension of the order of Compton wavelength, which generates its magnetic moment. The e.m. mass (self-energy) of electron outside this region does not participate to this internal dynamics, and consequently does not contribute to the mass term in the formula of the magnetic moment. This is the physical origin of the small increase of the magnetic moment of free electron compared to the value given by Dirac equation. We give arguments that this physical interpretation is self-consistent with the QED approach. The bound electron being localized, it has kinetic energy which means a mass increase from a relativistic point of view, which determines a magnetic moment decrease (relativistic Breit correction). On the other hand, the e.m. mass of electron decreases at the formation of the bound state due to coulomb interaction with the nucleus. We estimated this e.m. mass decrease of bound electron only in its internal dynamics region, and from it the corresponding increase of the magnetic moment (QED correction). The corrections to the mass value are at the origin of the lowest order corrections to the magnetic moment of free and bound electron.

关键词： Magnetic Moment of Dirac Electron Electromagnetic Self-Energy Physical Origin of the Corrections to the Magnetic Moment of Free and Bound Electron

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