bluuebunny/crossref_metadata_2025_split huggingface dataset:
Natural and economic factors of shrinkage of lakes of the Wielkopolska Lakeland
Authors: Nowak Bogumił , Brodzińska Barbara , Gezella-Nowak Izabela 
Published: February 2012

Natural and economic factors of shrinkage of lakes of the Wielkopolska LakelandThe paper discusses the issue of plant overgrowth in the littoral zone of lakes. It presents the plant encroachment process and its environmental and economic consequences based on the example of selected lakes of the Wielkopolska Lakeland. In order to estimate changes of quantity in the riparian vegetation structure, historical records of changes of reed bed areas were compared with their present areas. Historical data included bathymetric plans from the 1960's created by the Institute of Inland Fisheries and information obtained from interviews with the inhabitants of settlements located in the vicinity of the studied lakes. Present-day boundaries of reed bed zones were identified using orthophotos, aerial photographs and in situ inspections. In the course of the field research, identification of plant species and estimates of plant condition in the studied stands were carried out. Obtained data combined with data on local hydrological-meteorological conditions, water quality and land use in the direct vicinity of lakes allowed the authors to determine the conditioning factors of riparian vegetation encroachment. The collected evidence allowed the authors to establish that in the last five decades, the area of reed beds around the studied lakes increased by an average of 15-20%. This process was usually accompanied by the encroachment of hydrophytic plants consequently leading to the shrinkage of supralittoral zones. In the last 20 years, these two phenomena intensified considerably, particularly during two low water periods noted during this period. However, the encroachment of riparian vegetation proceeded differently in the case of each lake and it was most protrusive in highly eutrophicated reservoirs and those with a history of permanent or long-term lowering of the water table. The qualitative structure of the studied plant communities was conditioned mostly by nutrient inflow and the type of growing medium. In large clean lakes and in zones of sandy lake bottom, the reed beds were dominated by the common reed (Phragmitetum australis). In smaller, polluted lakes and shielded bays of larger lakes with stagnant water, beside multi-species reed beds, floating-leaf hydrophytic macrophyte plants of the genus Nymphaea, tall stands of sedges and helophytes were observed.
Relationship between areal hypolimnetic oxygen depletion rate and the trophic state of five lakes in northern Poland
Authors: Borowiak Dariusz , Nowiński Kamil , Barańczuk Jacek , Marszelewski Włodzimierz , Skowron Rajmund , Solarczyk Adam 
Published: February 2012

Relationship between areal hypolimnetic oxygen depletion rate and the trophic state of five lakes in northern PolandThe oxygen content in a lake is a fundamental factor in lake ecology. In stratified lakes, deep waters are isolated from the atmosphere for several months during the summer; therefore, oxygen (substantially consumed by biological and chemical processes at this time) cannot be replaced before the autumnal mixing period. Hypolimnetic oxygen depletion has been considered an indicator of lake productivity since the early twentieth century. Many recent studies have been in opposition to this view by showing that the areal hypolimnetic oxygen depletion rate (AHOD) is poorly correlated with seston biomass and/or phosphorus concentration. The objective of this study is to show relationships between the mean values of total phosphorus (TP), total nitrogen (TN), chlorophyll a, and water transparency (Secchi disk depth, SDD) during the thermal stratification formation period and the AHOD rate. Hypolimnetic oxygen conditions in five dimictic lakes in northern Poland were examined in 2009 and 2010. Two of them were studied in the previous year. Monthly oxygen profiles taken from April to August, midsummer temperature profiles, and morphological data of the lakes were used to determine the AHOD rate. Standard water quality parameters such as concentrations of chlorophyll a, TP, and TN, as well as water transparency measured at the same time were used to calculate the trophic state indices (TSI) according to the Carlson-type formulas. On the basis of the collected data it is shown that AHOD is highly correlated with the TSI value for chlorophyll a, and poorly correlated with the TSI values for water transparency and phosphorus content. The best correlation between AHOD and TSI has been found for chlorophyll a (r2=0.702; p<0.001), as well as for overall TSI, determined by averaging separate component indices (r2=0.826; p<0.000). No correlation was found between AHOD and total nitrogen concentration. The research also confirmed previous observations, which pointed to a significant role of the hypolimnion depth in increasing oxygen deficits.
Lakes in the cascade model of storage and drainage reservoirs
Authors: Fac-Beneda Joanna 
Published: February 2012

Lakes in the cascade model of storage and drainage reservoirsThe study area covers a compact, decentric hydrographic system called the Kashubian hydrographic system, which includes the drainage basins of the Słupia, Łupawa, Łeba, Reda, Wda, Wierzyca and Radunia. The Kashubian hydrographic system can be presented in the form of a cascade model of storage-drainage reservoirs - kord. One of the properties of a hydrographic system is its extent. Its horizontal extent is delimited by topographic watersheds, and its vertical extent is delimited at the bottom by the surface of the drainage base and in the roof by the land surface. Since reservoirs of the kord model are inscribed one into another, the upper border of all the reservoirs of the cascade is assumed to be the land surface, and the lower border of particular reservoirs of the cascade is a surface going through the level (elevation) of recipients receiving their waters. In the kord model on all its levels there are water reservoirs; however they differ in terms of origin, development, hydrological features and the role they play in the system. Depending on the type of recipient, drainage and storage can occur with various intensity. As follows from the hydrographic analysis the deepest lakes are situated in local and regional recipients, hence in these types of recipient, drainage and storage have greater intensity. On the other hand, in the transit recipient, transport is dominant.
L'évaluation monétaire des dommages du risque naturel d'inondation en région PACA : une analyse à l'aide d'un modèle d'équilibre général calculable
Authors: Sassi Marc 
Published: February 2012

Ce travail se propose d’évaluer les dommages monétaires des activités économiques clés de la région Provence Alpes Côte d’Azur au risque naturel d’inondation à l’aide d’un modèle d’équilibre général calculable. En retenant comme crue de référence l’inondation centennale de décembre 2003, nous élaborons un modèle statique intégrant le paramètre technique « inondation » aux activités agricoles et commerciales régionales. A l’aide de trois simulations, nous étudions le retour à l’équilibre du système ayant subi une perturbation. Les résultats montrent une plus grande vulnérabilité des activités agricoles au risque d’inondation mais des effets marginaux plus importants des activités commerciales sur l’économie régionale.
Les sciences cognitives sont-elles condamnées ?
Authors: Desclès Jean-Pierre 
Published: February 2012

Résumé Si on tente de dresser brièvement l’historique des sciences cognitives, il convient de rappeler que leur objet d’étude est très complexe. Dans un premier temps, elles ont travaillé à une modélisation idéalisée de supports neurobiologiques. Dans un second temps, ce qui est devenu le cognitivisme a introduit des représentations dans l’analyse du fonctionnement de l’esprit. Notons aussi l’approche originale de N. Chomsky, plus psychologique, l’émergence d’une psychologie cognitive distincte de la psychologie clinique sous l’influence de la linguistique et la mise en place de l’approche connexionniste où chaque neurone est un automate élémentaire. Comment Jean-Pierre Dupuy se situe-t-il face à ces sciences ? Il faudrait, en tout cas, se démarquer d’une approche par trop réductionniste ou dualiste entre esprit, d’un côté, et cerveau matériel, de l’autre. Pour ce faire, nous attirons l’attention sur le fait suivant : la compilation propre à l’informatique devient un véritable principe cognitif, ce qui n’est pas sans poser de nouvelles difficultés. Comment l’esprit adhère-t-il à la matière (J. Ladrière) ? Le réductionnisme est très présent dans les nanosciences et nanotechnologies. Changer l’homme sur la base de tels modèles est-il souhaitable ? C’est l’analyse de l’humain qui est menacé par un réductionnisme simpliste. Enfin, J.-P. Dupuy semble particulièrement pertinent lorsqu’il distingue temps de l’histoire et temps du projet. Le livre intitulé Catastrophisme éclairé jette les bases philosophiques d’une métaphysique de la temporalité.
Face à la violence des inégalités, quelle éthique théologique ?
Authors: Didier Élisabeth 
Published: February 2012

Résumé Une longue pratique médicale auprès des exilés et des patients touchés par le Sida permet de comprendre les mécanismes qui engendrent exclusions et inégalités. Les travaux du médecin anthropologue Didier Fassin donnent quelques clés de lecture sur cette question. En retour, les patients obligent à décaler et à renouveler la pratique du médecin sous la forme d’un véritable compagnonnage auprès des plus petits, nécessitant de nouvelles conduites et de nouvelles solidarités. La parabole du riche et du pauvre en Luc 16, 19-31 éclaire nos pratiques en faveur des plus démunis : Jésus s’est identifié au plus petit, il nous invite à quitter l’accusation au profit de l’hospitalité.
La pensée interreligieuse de Raimon Panikkar, un regard Bouddhiste
Authors: Liber-Chrétien Bruno 
Published: February 2012

Résumé L’auteur propose une lecture bouddhique de certaines idées du théologien et philosophe Raimon Panikkar. Penseur de l’interreligieux par excellence, il a écrit de nombreux livres et offert nombre d’enseignements et de conférences sur ce thème. Il examine plus précisément la question de l’athéisme et de l’apophatisme, au cœur de son livre Le Silence du Bouddha. Une introduction à l’athéisme religieux . Il examine par ailleurs certaines spécificités de sa méthode d’interprétation en s’appuyant sur les thèses qu’il a développées dans une œuvre dense et foisonnante et croit y discerner une stratégie qui n’est pas exempte de toute critique sur le plan d’une éthique de l’herméneutique. Panikkar omet en effet ce qui, dans la tradition, ne concourt pas à l’étayage de ses thèses. La question dès lors est de savoir si cela invalide « l’esprit » qui préside à son approche et ne s’avère pas contre-productif.
Diaconie et identité chrétienne
Authors: Heimbach-Steins Marianne , Materne Pierre-Yves 
Published: February 2012

Résumé Annoncer la Bonne Nouvelle, c’est s’engager pour la libération des pauvres. Il en va de la qualification prophétique de l’agir diaconal. Cet agir a une dimension politique (voir la Conférence des évêques allemands, 1999). Il joue un rôle d’avocat et doit participer à la formation des consciences et des opinions. Il opère ainsi dans l’institution comme en dehors d’elle. La subsidiarité est une autre de ses caractéristiques majeures. Elle réclame une pluralité d’acteurs, quitte, le cas échvcéant, à revêtir un aspect clairement contestataire. Il va de soi que ces acteurs sont issus de l’ensemble des confessions chrétiennes ; la liturgie elle-même est concernée.
On Construction of Sparse Probabilistic Boolean Networks
Authors: Chen Xi , Jiang Hao , Ching Wai-Ki 
Published: February 2012

AbstractIn this paper we envisage building Probabilistic Boolean Networks (PBNs) from a prescribed stationary distribution. This is an inverse problem of huge size that can be subdivided into two parts — viz. (i) construction of a transition probability matrix from a given stationary distribution (Problem ST), and (ii) construction of a PBN from a given transition probability matrix (Problem TP). A generalized entropy approach has been proposed for Problem ST and a maximum entropy rate approach for Problem TP respectively. Here we propose to improve both methods, by considering a new objective function based on the entropy rate with an additional term ofLa-norm that can help in getting a sparse solution. A sparse solution is useful in identifying the major component Boolean networks (BNs) from the constructed PBN. These major BNs can simplify the identification of the network structure and the design of control policy, and neglecting non-major BNs does not change the dynamics of the constructed PBN to a large extent. Numerical experiments indicate that our new objective function is effective in finding a better sparse solution.
Chiral Biscarboline N,N′‐Dioxide Derivatives: Highly Enantioselective Addition of Allyltrichlorosilane to Aldehydes
Authors: Bai Bing , Shen Lan , Ren Jie , Zhu Hua Jie 
Published: February 2012

AbstractThe allylation of aromatic and aliphatic aldehydes with allyltrichlorosilanes has been catalyzed with a new Lewis base organocatalyst, 1,1′‐biscarboline N,N′‐dioxide with high enantioselectivities of up to 99% for 4‐methoxybenzaldehyde and 97% ee for cycloformaldehyde, respectively. In total, 13 heteroaryl and aliphatic aldehydes were tested.
Genes at work in random bouts
Authors: Golubev Alexey 
Published: February 2012

AbstractCell interdivision periods (IDP) in homogenous cell populations vary stochastically. Another aspect of probabilistic cell behavior is randomness in cell differentiation. These features are suggested to result from competing stochastic events of assembly/disassembly of the transcription pre‐initiation complex (PIC) at gene promoters. The time needed to assemble a proper PIC from different proteins, which must be numerous enough to make their combination gene specific, may be comparable to the IDP. Nascent mRNA visualization at defined genes and inferences from protein level fluctuations in single cells suggest that some genes do operate in this way. The onset of mRNA production by such genes may miss the time windows provided by the cell cycle, resulting in cells differentiating into those in which the respective mRNAs are either present or absent. This creates a way to generate cell phenotype diversity in multicellular organisms.
Expression of a cGMP compatibleLucilia sericatainsect serine proteinase debridement enzyme
Authors: Pritchard David I , Telford Gary , Diab Miliza , Low Walter 
Published: February 2012

AbstractPreviously, we demonstrated the effectiveness of a research grade recombinant chymotrypsin,1derived from the larvae of Lucilia sericata, in “debriding” slough/eschar from venous leg ulcers ex vivo. Furthermore, we were able to formulate this enzyme for successful delivery to in vitro wound healing assays, from a prototype hydrogel wound dressing,2and showed that enzyme delivered in this way could degrade wound tissue ex vivo.3Recently, to progress biotechnological development of the enzyme as a potential therapeutic product, we explored expression using current good manufacturing practice (cGMP) guidelines, and now report that a recombinant chymotrypsin I zymogen from L. sericata can be expressed in the cGMP acceptable strain of Escherichia coli (BLR–DE3). In addition, the conditions required for purification, refolding and activation of the chymotrypsinogen have been determined. The activated enzyme was stable, and effective in digesting wound slough/eschar tissue. To summarise, we have successfully initiated the production and characterisation of a novel cGMP compatible product for use in future clinical trials. © 2012 American Institute of Chemical Engineers Biotechnol. Prog., 2012
Toward an understanding of meaning creation via the collective co‐production process
Authors: Peters Cara , Bodkin Charles D. , Fitzgerald Scott 
Published: February 2012

ABSTRACTCo‐production has been traditionally studied in the context of industrial and service markets. This study investigates the consumer's search for meaning and fulfillment via one type of co‐production, collective co‐production. The case study method was utilized to examine knife making from kits. The findings unpack a three‐part co‐production process (design, production, and consumption) that results in significant identity ramifications for consumers. During the design stage of knife making, the informants shaped their self‐concept through social inspiration, creative self‐expression, and identification with the primal sense of self. The production stage provided internal validation of the self‐concept through a pseudochallenge that was achieved through learning activities. The consumption stage provided external validation of the self‐concept as the informants shared their co‐production experience with others. Theoretical implications are discussed.Copyright © 2012 John Wiley & Sons, Ltd.
ChemInform Abstract: A Novel Low Temperature Synthesis Route for SmFeAsO1‐xFx Bulk Superconductor with Improved Transport Properties.
Authors: Anooja J. B. , Aswathy P. M. , Sarun P. M. , Syamaprasad U. 
Published: February 2012

AbstractPolycrystalline bulk samples of the title compounds (0 ≤ x ≤ 0.4) are synthesized at low temperatures from stoichiometric amounts of Sm, Fe, As, Fe2O3, and FeF2 (370 °C for 5 h followed by sintering at 850 °C for 50 h).
ChemInform Abstract: Divalent‐Metal‐Stabilized Aluminophosphates Exhibiting a New Zeolite Framework Topology.
Authors: Shao Lang , Li Yi , Yu Jihong , Xu Ruren 
Published: February 2012

AbstractThe new compounds (C5H14N2) [Co2Al4P6O24] and (C5H14N2) [Zn2Al4P6O24] are hydrothermally synthesized from aqueous mixtures of Co(OAc)2 or Zn(OAc)2, Al2O3, H3PO4, and N‐methylpiperazine (autoclave, 180 °C, 3 d).
ChemInform Abstract: Synthesis, Structure, and Solubility Studies of a New Arsenato‐Polyoxovanadate Cluster Compound: (NH4)4 [V12As8O40(H2O)] ·4H2O.
Authors: Wutkowski Adam , Evers Nils , Bensch Wolfgang 
Published: February 2012

AbstractThe title compound is prepared by solvothermal reaction of NH4VO3 and As2O3 in a 1:1 mixture of Et2O (or EtOH) and H2O (pH 6.5, 80 °C, closed glass tube, 7 d, 20% yield).
ChemInform Abstract: New Neptunium(V) Borates that Exhibit the Alexandrite Effect.
Authors: Wang Shuao , Alekseev Evgeny V. , Depmeier Wulf , Albrecht‐Schmitt Thomas E. 
Published: February 2012

AbstractThe new compounds K[(NpO2)B10O14(OH)4] (I) and K2 [(NpO2)2B16O25(OH)2] (II) are synthesized from a stock solution of 137NpCl5 and a large excess of H3BO3 and KCl (autoclave, 220 °C, 3 d).
ChemInform Abstract: Enantioselective Intramolecular Benzylic C—H Bond Amination: Efficient Synthesis of Optically Active Benzosultams.
Authors: Ichinose Masami , Suematsu Hidehiro , Yasutomi Yoichi , Nishioka Yota , Uchida Tatsuya , Katsuki Tsutomu 
Published: February 2012

AbstractIridium(III)—salen complexes (I) catalyze the title reaction of 2‐ethylbenzenesulfonyl azides to give five‐membered sultams with high enantioselectivities.
ChemInform Abstract: Construction of 3‐Allylidene‐4‐vinyltetrahydrofurans and 3‐Allylidene‐4‐vinylpyrrolidines via Sequential Domino Allylation/Olefination of C—C Triple Bonds.
Authors: Meng Tuan‐Jie , Hu Yimin , Zhao Quansheng , Yu Tao , Wang Shaowu 
Published: February 2012

AbstractDomino allylation—olefination reaction of 1,6‐enynes with terminal alkenes provides access towards title allylidene(vinyl)tetrahydrofuran and ‐pyrrolidines, e.g. (III) and (V).
ChemInform Abstract: Fluorous Aryl Compounds by Matsuda—Heck Reaction.
Authors: Salabert Jordi , Sebastian Rosa Maria , Vallribera Adelina , Roglans Anna , Najera Carmen 
Published: February 2012

AbstractArylation of various olefins with p‐(perfluorooctyl)benzenediazonium salt (II) proceeds smoothly in the presence of Pd(O‐Ac)2 to give the corresponding styrene or stilbene derivatives in moderate to good yields.
ChemInform Abstract: Synthesis of α‐Trifluoromethyl‐phenethylamines from α‐Trifluoromethyl β‐Aryl Enamines and β‐Chloro‐β‐(trifluoromethyl)styrenes.
Authors: Muzalevskiy Vasiliy M. , Shastin Aleksey V. , Balenkova Elizabeth S. , Haufe Guenter , Nenajdenko Valentine G. 
Published: February 2012

AbstractA transamination‐reduction sequence for the synthesis of α‐CF3‐phenethylamines is presented.
ChemInform Abstract: Poly(N,N′‐dichloro‐N‐ethyl‐benzene‐1,3‐disulfonamide) and N,N,N′,N′‐Tetrachlorobenzene‐1,3‐disulfonamide as Efficient Reagents to Direct Oxidative Conversion of Thiols and Disulfide to Sulfonyl Chlorides.
Authors: Veisi Hojat , Ghorbani‐Vaghei Ramin , Mahmoodi Jafar 
Published: February 2012

AbstractThe use of polymeric sulfonamide leads to similar results.
ChemInform Abstract: Aryl(chloro)methyl 4‐Tolyl Sulfoxides: Synthesis and Application to the Synthesis of α‐Aryl Ketones.
Authors: Fukuda Shigehiko , Tsuji Kazuhito , Musashi Jun , Nonaka Ryo , Kimura Tsutomu , Satoh Tsuyoshi 
Published: February 2012

AbstractThe reaction of the title compounds, prepared from the corresponding arylmethyl 4‐tolyl sulfoxides, with carbonyl compounds in the presence of LDA affords functionalized chloro alcohols in good yields.
ChemInform Abstract: Preparation of Solid Salt Stabilized Functionalized Organozinc Compounds and Their Application to Cross‐Coupling and Carbonyl Addition Reactions.
Authors: Bernhardt Sebastian , Manolikakes Georg , Kunz Thomas , Knochel Paul 
Published: February 2012

AbstractNovel zinc pivalates are prepared as is shown for substrates (III) and isolated as stable powders which can be easily handled.
ChemInform Abstract: Iron‐Catalyzed Oxidative Coupling of Arylboronic Acids with Benzene Derivatives Through Homolytic Aromatic Substitution.
Authors: Uchiyama Nanase , Shirakawa Eiji , Nishikawa Ryo , Hayashi Tamio 
Published: February 2012

AbstractThe iron‐catalyzed homolytic aromatic substitution of arenes (II) with aryl radicals generated from arylboronic acids (I) gives rise to biaryls (III).
ChemInform Abstract: Metal‐Free Intramolecular Carbonyl—Olefin Metathesis of ortho‐Prenylaryl Ketones.
Authors: Soicke Arne , Slavov Nikolay , Neudoerfl Joerg‐Martin , Schmalz Hans‐Guenter 
Published: February 2012

AbstractAttempted selective demethylation of substrate (Ia) during the synthesis of pestalone affords instead a cyclized product (IIa).
ChemInform Abstract: Domino Reactions Consisting of Heterocyclization and 1,2‐Migration—Redox‐Neutral and Oxidative Transition‐Metal Catalysis.
Authors: Umland Klaus‐Daniel , Palisse Adeline , Haug Timm T. , Kirsch Stefan F. 
Published: February 2012

AbstractStarting from the same compounds, two unprecedented domino reactions are performed leading to either bicyclic 2,3‐dihydrofurans or furylbutanals.
ChemInform Abstract: Iridium‐Catalyzed Asymmetic Hydrogenation of 3‐Substituted Unsaturated Oxindoles to Prepare C3‐Mono Substituted Oxindoles.
Authors: Liu Yuanyuan , Yao Dongmei , Li Kun , Tian Fengtao , Xie Fang , Zhang Wanbin 
Published: February 2012

AbstractThe title reaction provides an efficient access to chiral C3‐mono substituted oxindoles with excellent conversion and up to 93% e.e.
ChemInform Abstract: Isomeric Acetoxy Analogues of Celecoxib and Their Evaluation as Cyclooxygenase Inhibitors.
Authors: Rahim M. Abdur , Rao P. N. Praveen , Bhardwaj Atul , Kaur Jatinder , Huang Zhangjian , Knaus Edward E. 
Published: February 2012

AbstractA series of 3‐trifluoromethyl‐5‐arylpyrazoles bearing a 4‐aminosulfonylphenyl‐ [cf.
ChemInform Abstract: Facile Synthesis of 3‐Methyl‐4‐arylmethylene‐isoxazol‐5(4H)‐ones Catalyzed by Sodium Silicate in an Aqueous Medium.
Authors: Liu Qing , Wu Ren‐Tao 
Published: February 2012

AbstractSodium silicate pentahydrate is an efficient catalyst for the one‐pot synthesis of the title compounds (III) by condensation of ethyl acetoacetate, hydroxylamine and various aldehydes.