bluuebunny/crossref_metadata_2025 huggingface dataset:
Gebirgswaldpflege – es kommt auf den Standort an | Mountain silviculture – it all depends on the site
Authors: Frehner Monika
Published: April 2007

The article shows that knowledge of the site of a particular forest stand, together with research results and experience, can provide information that is important for the cultivation of mountain forests, including knowledge of the composition of the tree species and the structure and growth capacity of natural forest. Furthermore, certain sites can, thus, be characterized by factors that influence restocking, such as snow mould,lush ground vegetation or low temperature. The guidelines«minimale Pflegemassnahmen» – «Minimal tending of protection forests» (WASSER und FREHNER, 1996) are based on this principle. For individual sites, warnings about natural dangers such as rock fall or statements concerning nature conservation can be made (e.g., the occurrence of tree species, suitability as a biotope for Capercaille). In conclusion, two research projects on the relationship between site and natural dangers will be presented.
Waldbewirtschaftung: Umgang mit der Vergangenheit – für die Zukunft | Forest Management: Dealing with the Past for the Future
Authors: Zingg Andreas
Published: April 2007

Forestry and forestry research are confronted with a problem which is less pronounced in other fields: the length of time during which the processes must be observed and the long production times. These facts give rise to a number of specific features. Due to the rapid cultural, economic and social changes,questions to be answered by forestry research are dated by the time results are available. On the other hand, it is almost impossible to predict future developments and to adapt the research accordingly. The result is that the further development of forestry research as well as of forest management must concentrate on questions which encompass a broad spectrum of possible developments. This is demonstrated by new research plots for topics concerning continuous forest cover,montane spruce forests, chestnut coppices and the application of new methods and techniques.
Diagnose von Umwelteinflüssen auf Bäume | Diagnosis of environmental stress on trees
Authors: Günthardt-Goerg Madeleine Silvia , Vollenweider Pierre
Published: April 2007

If environmental stress exceeds the potential of acclimation,detoxification and reparation, then the cells, tissues, organs and entire plants suffer injury. The latter serves as a bioindication,when it indicates the nature and duration of the stress factor. Exemplary reactions of cells, tissues, organs and entire trees to environmental stress are presented here in words and pictures. The knowledge of such reactions can be used for a differential diagnosis to determine wheter the injury is by nutrient imbalance, drought stress, frost, hail, insects, fungus and mite infections or ozone and to estimate their influence.
Vom Kleinen zum Grossen in der langfristigen Walddynamik: Die Bedeutung verschiedener Massstabsebenen | Moving from the small to large in longterm forest dynamics: the importance of scaling issues
Authors: Bugmann Harald
Published: April 2007

The dynamics of forest ecosystems span very large ranges of time and space, from milliseconds to millennia and from square millimeters to the entire globe. Experiments and observations,however, are typically performed on small patches of land and for relatively short time spans. Thus, the problem arises as to how forest science can answer questions related to the development of forests under the impacts of changes in the socio-economic, political, physical and chemical environment in the 21st century.

The concept of scale and the transition between different scales, so-called scaling, are introduced, and methods for the scaling of ecological information are discussed. Scaling questions can be answered by direct observation or experimentation,but such studies tend to be very expensive because they be performed over long periods of time and on several spatial scales. As an alternative, mathematical models that are based on hierarchy theory can be used to address scaling issues. Three examples are used to illustrate how ecological information can be scaled from small areas and short times to larger areas and long periods. Problems arising with hierarchy theory are also addressed.
Zur Auswirkung der Hangneigungskorrektur auf Schätzwerte im Schweizerischen Landesforstinventar (LFI) | Investigation of the effect of the slope correction method as applied in the Swiss National Forest Inventory of estimates
Authors: Köhl Michael , Brassel Peter
Published: April 2007

For forest inventories on slopes, it is necessary to correct the test areas, because the circular areas, when projected, become elliptical. Based on 93 samples from the Swiss National Forest Inventory (FNI), it was determined whether the simplified method, which increases the radius to match that of the elliptical area, leads to a distortion of the results. An average deviation of 2% was found between the FNI estimated values and the actual values for the basal area and the number of stems. For estimations of smaller units, greater distortions of the results are expected.
Colonisation par la faune des dépressions créées par la verse des arbres suite à l'ouragan Lothar – premiers constats dans quelques forêts vaudoises | The role of depressions resulting from uprooted trees as new biotopes – preliminary observations in forests after hurricane Lothar
Authors: Maibach Alain , Antoniazza Vincent , Cherbuin Pierre
Published: April 2007

On 26th December 1999, hurricane Lothar blew over Europe causing widespread damages, particularly on forested areas of Western Switzerland. One consequence of uprooted trees were depressions in the ground where rain water could collect and remain, depending on the soil characteristics. Colonisation of these aquatic depressions by plants and animals was surveyed in 2000. Our study showed that these new depressions were only colonized secondarily, organisms (insects and amphibians)preferring aquatic biotopes already present in the surrounding forest such as ditches, marshes or ponds. First colonization started around mid-May, but only within the depressions which were deep and filled with permanent water. The present study describes the colonization process of these depressions and discusses their contribution to forest biodiversity.
Dauerhaftigkeit von Holz – Umweltbezogene Optimierung des Holzschutzes (Cost Action E22) | Durability of wood – environmentally-friendly optimisation of wood protection (Cost Action E22)
Authors: Graf Erwin
Published: April 2007

Cost Action E22 intends to optimise the wood protection taking into account the environmental compatibility. Apart from Switzerland, 19 countries have signed the Memorandum of Understanding. In an action plan set up by the Management Committee the aims of the three working groups are defined regarding durability of wood products and protection measures,their interaction with the environment and the possibilities for new developments shown. Open questions on basic methods and guidelines will be addressed in seminars and workshops. This action is very important for promoting quality improvement and use of wood to facilitate the wood trade within Europe and the conversion of European guidelines into national law.

Swiss scientists have the opportunity to participate in the different meetings, to report their experience, to visit a partner institute for a short time and to build up networks for future European research projects. The action plan runs until the end of 2003.
Von Karl Kasthofer zu Elias Landolt: Unterschiedliche Blickwinkel auf die Schweizer Gebirgswälder am Beispiel des Vorderrheintals | From Karl Kasthofer to Elias Landolt: Differing points of view concerning the Swiss alpine forests, exemplified by the valley of «Vorderrhein»
Authors: Izeti Ursula Scholian
Published: April 2007

Within the space of 40 years, Karl Kasthofer and Elias Landolt,two of the most influential Swiss forestry experts of the 19th century, gave account of the situation in the Swiss alpine forests. In their reports they criticised the management of the alpine forests with sweeping judgements and arguments which can no longer be maintained today. A characteristic feature of their argumentation was, that they did not distinguish properly between different scales: early examples of the importance and difficulty of scaling issues. To start with, the alpine cantons themselves suffered heavily under the climate changes and the repeated floods allegedly caused by themselves. Using the valley of «Vorderrhein» as an example, we show how the harsh living conditions left little scope to the population in the management of their forests. The discussion in the Canton of Grisons on the connection between deforestation and environmental phenomena took the experts'arguments into consideration, but weighted them differently. Not the least result of the experts' deeply rooted ambivalence was a certain resentment in Grisons.
Conservation des forêts et développement territorial | Forest conservation and spatial development
Authors: Rumley Pierre-Alain
Published: April 2007

We open the discussion by ascertaining the importance of the forest for spatial development, in so far as it currently covers 31% of the area of Switzerland, a percentage that is even increasing.

The treatment of the forest from a historical planning perspective is touched on. The forest, as an element, was not given much consideration until the end of the 1980s. One could say that this phase of «benevolent ignorance» was subsequently followed by a phase characterised by co-ordination and integration– a development, which is still unfolding. That this development became possible can be explained primarily by the setting of the political agenda and article 18, paragraph 3 RPG, which led to the forestry law of 1991 and its enactment in 1992.

The article closes with a conjuring-up of the contents of a possible future forestry policy for Switzerland. In the opinion of the author, a total revision of existing policies is unnecessary. Nevertheless, some planning seems desirable, and it might be appropriate to address more profoundly two essential questions,which still lack a satisfactory answer:• Is the area covered by forest in Switzerland today too much,too little, or just right?• Are the forests in the right place?
Leben mit dem Wald im oberen Theresiental (Transkarpatien, Ukraine) – Porträt einer Waldregion vor den Toren der Europäischen Union | Living with the forest in the upper Theresien Valley (Transcarpathia, Ukraine): Portrait of a forest region at the doors of the European Union
Authors: Grunder Karl
Published: April 2007

The local population of the upper Theresian Valley owes its livelihood almost exclusively to the forest. Natural risks and institutional problems are hindering development. In times of change, such as those that the Ukraine is going through at present, the forest and natural resources in general can ensure the survival of the rural population. From the authors' point of view the communities in the upper Theresian Valley and similar areas should be actively engaged in the management of the forest, and, in the first instance, wood and forest should benefit the local populations. Corruption should be combated at its origin on the structural level. The public at large must have access to transparent information. Foreign investors should be independently monitored. The authors suggest that access to and the relationship of the local population with their natural resources be taken into account as an additional priority criterion for sustainability.
An adaptive tracking problem for a family of retarded time‐delay plants
Authors: Momeni Ahmadreza , Aghdam Amir G.
Published: April 2007

Most of the existing switching control techniques are developed specifically for finite‐dimensional linear time‐invariant (LTI) systems. In many practical applications, however, it is essential to take time delay into consideration in the modelling as the control system can be highly sensitive to delay. In this paper, a multi‐model switching control algorithm is proposed for retarded time‐delay systems. It is assumed that the plant is represented by a family of known multi‐input multi‐output, observable, LTI models with multiple delays in the states, and that corresponding to each model in the known family, there exists a high‐performance finite‐dimensional LTI controller. In addition, it is supposed that a bound on the magnitude of the external inputs and disturbances is available. It is then shown that the proposed switching controller can stabilize the uncertain system, and that under some mild conditions, output tracking can be achieved in the given problem setting. Copyright © 2007 John Wiley & Sons, Ltd.
Synthesis and polyelectrolyte behavior of poly(methacrylic acid) star polymers
Authors: Furukawa Taiichi , Uchida Satoshi , Ishizu Koji
Published: April 2007

Poly(tert‐butyl methacrylate) [P(tBMA)] star polymers were synthesized by copolymerization of p(tBMA) macroinitiator with ethylene glycol dimethacrylate via atom transfer radical polymerization method. P(tBMA) stars had a narrow molecular weight distribution (Mw/Mn = 1.06–1.15). The ratio of radius of gyration to hydrodynamic radius RG/RH, which indicates inner segment density, was in the range 1.16–1.22 in tetrahydrofuran (THF) (arm number f = 25–142). These stars behaved not as hard spheres but as soft spheres in THF. Poly(methacrylic acid) stars were obtained by the hydrolysis of P(tBMA) arms. We investigated the conformation of star polyelectrolyte as a function of pH and ionic strength by means of dynamic light scattering (DLS). The hydrodynamic diameter increased gradually from 18.8 to 48.3 nm as a function of the solution pH. In addition, we compared experimental results with theoretical models for star polyelectrolytes. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007
A novel synthesis of reactive nano‐clay polyurethane and its physical and dyeing properties
Authors: Wang Huei‐Hsiung , Chen Ko‐Vin
Published: April 2007

This study is about polyurea prepolymer, which was synthesized from the extender (N‐(2‐hydroxyethyl) ethylene diamine, HEDA or ethylene diamine, EDA) with 4,4′‐diphenylmethane diisocyanate (MDI), as an intercalative agent to intercalate the organic modified montmorillonite clay. Then, it is further reacted with the polyurethane prepolymer, which is polymerized from the polytetramethylene glycol (PTMG) and MDI, to proceed the intercalative polymerization to form a polyurethane/clay nanocomposite polymer. The experimental parameters contain the use of polyurea intercalative prepolymer extender and also the contents of organo‐clay in the prepolymer etc. We expect to get better mechanical property and also to improve the dyeing properties of nano‐clay polyurethane. The polyurethane/clay polymer is synthesized using two‐step method: synthesizing the polyurethane prepolymer from PTMG and MDI and then extended with the polyurea prepolymer modified with the organo‐clay. Because the extender HEDA contains side chain of hydroxyl groups, the modified PU can further react with the reactive dye. From the experimental results of the fine structure (X‐ray and FT‐IR) and mechanical analysis, it is found that the intercalation is successfully achieved. Thedistance of interlayer spacing is manifestly enlarged. The mechanical properties are significantly improved as the content of organo‐clay is increased. Besides, although thedye up‐take is decreased with the increasing content oforgano‐clay, but the water‐resistant fastness is improved. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007
Dissolution and wet spinning of silk fibroin using phosphoric acid/formic acid mixture solvent system
Authors: Ki Chang Seok , Lee Ki Hoon , Baek Doo Hyun , Hattori Masahiro , Um In Chul , Ihm Dae Woo , Park Young Hwan
Published: April 2007

Regenerated silk fibroin (SF) filaments could be prepared by wet spinning in common solvent/coagulation system. SF was directly dissolved in mixture solvent of phosphoric acid and formic acid (20/80–30/70 ratio) and coagulated in methanol bath. The concentration and stability of SF dope solution have been studied by varying the mixture ratios of these solvents in accordance with elucidating the role of formic acid in the mixture solvent system. Morphological structure as well as crystalline structure of the regenerated filament was examined using SEM and XRD analyses. As a result of tensile test, the regenerated SF filament, which was made by one‐step dissolution and coagulation process, had good mechanical properties, 2.3 gf/d tenacity and 18% breaking strain. In this study, a simple wet spinning method which enables to apply to practical production has been reported for the preparation of the regenerated SF filament. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007
Synthesis and properties of PSF/PTMEG copolyurethanes
Authors: Sun Gang , Liu Yu , Lv Hong , Zhu Na , Hu Keao
Published: April 2007

A series of polysulfide (PSF)/polyoxytetramethylene glycol (PTMEG) copolyurethanes have been synthesized, which were based on isophorone diisocyanate‐terminated liquid PSF, 2,4‐toluene diisocyanate‐terminated PTMEG, and 2,5‐diamino‐3,6‐dimethylmercaptotoluene (Ethacure‐300). Fourier transform infrared spectroscopy spectra have established the formation of PSF polyurea and PSF/PTMEG copolyurethanes. The properties were investigated by DMA, stress–strain, and hardness analysis. Those results showed that the miscibility of the copolyurethane increases with the increase of PSF polyurea content. With the increase in PTMEG polyurethane content, the tensile strength and elongation increase, whereas the Shore A hardness decreases. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007
Synthesis of diblock copolymers comprising poly(2‐vinylpyridine‐co‐acrylonitrile) and polystyrene blocks by nitroxide‐mediated radical polymerization
Authors: Lokaj J. , Poláková L. , Holler P. , Starovoytova L. , Štěpánek P. , Diat O.
Published: April 2007

Nitroxide‐mediated radical copolymerization of 2‐vinylpyridine (2VP) with acrylonitrile (AN) at various mole fractions of 2VP in the feed at 125°C was studied. An alkoxyamine containing the diethoxyphosphoryl group (MAMA‐SG1) or a two‐component system of 2,2′‐azobis(isobutyronitrile) or dibenzoyl peroxide in combination with nitroxyl radicals TEMPO were used for the initiation; in addition, spontaneous thermal radical copolymerization of both the comonomers was performed in the presence of a nitroxide. The obtained nitroxide‐terminated 2VP‐AN copolymers showed a low polydispersity (Mw/Mn ∼ 1.2). They initiated polymerization of styrene (S) giving poly(2VP‐co‐AN)‐block‐polyS diblock copolymers; however, in dependence on the used macroinitiator, the resulting products might be markedly contaminated with inactive polymer chains. On the other hand, the 2VP‐AN copolymerization, which was initiated at 125°C with a TEMPO‐terminated polyS, proved to be an efficient synthetic route for the preparation of diblock copolymers comprising blocks of polyS and poly(2VP‐co‐AN). The synthesized copolymers were characterized by NMR spectroscopy and size‐exclusion chromatography. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007
Preparation of a heterogeneous hollow‐fiber affinity membrane modified with a mercapto chelating resin
Authors: Wang Bing , Huang Lei , Xiao Feng , Liu Wei , Jiang Xipeng
Published: April 2007

A high‐quality, heterogeneous hollow‐fiber affinity membranes modified with mercapto was prepared through phase separation with blends of a chelating resin and polysulfone as membrane materials, poly(ethylene glycol) as an additive, N,N‐dimethylacetamide as a solvent, and water as an extraction solvent. The effects of the blending ratio and chelating resin grain size on the structure of the hollow‐fiber affinity membrane were studied. The effects of the composition of the spin‐cast solution and process parameters of dry–wet spinning on the structure of the heterogeneous hollow‐fiber affinity membrane were investigated. The pore size, porosity, and water flux of the hollow‐fiber affinity membrane all decreased with an increase in the additive content, bore liquid, and dry‐spinning distance. With an increase in the extrusion volume outflow, the external diameter, wall thickness, and porosity of the hollow‐fiber affinity membrane all increased, but the pore size and water flux of the hollow‐fiber affinity membrane decreased. It was also found that the effects of the internal coagulant composition and external coagulant composition on the structure of the heterogeneous hollow‐fiber affinity membrane were different. The experimental results showed that thermal drawing could increase the mechanical properties of the heterogeneous hollow‐fiber affinity membrane and decrease the pore size, porosity, and water flux of the heterogeneous hollow‐fiber affinity membrane, and the thermal treatment could increase the homogeneity and stability of the structure of the heterogeneous hollow‐fiber affinity membrane. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007
The effect of silica nanoparticles on the thermomechanical properties of polystyrene
Authors: Kontou E. , Anthoulis G.
Published: April 2007

A series of polystyrene (PS)/SiO2 nanocomposites were prepared. Silica nanoparticles with an average diameter of 16 nm were used, and treated with dimethyldichlorosilane, while their weight fraction varied from 4 up to 10%. The viscoelastic‐thermomechanical properties of the nanocomposites and their interrelation with the material's structure were studied with various experimental techniques. Scanning electron microscopy, differential scanning calorimetry, dynamic mechanical analysis, and tensile testing at three different temperatures were applied. The stress–strain curves at 85°C, where the material's viscoplastic response is manifested, were simulated through a plasticity model, developed in previous works. The 4% weight fraction was found to be the optimum one for the enhancement of the thermomechanical properties. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007
Synthesis and corrosion protection performance of polydiphenylamine
Authors: Sathiyanarayanan S. , Muthukrishnan S. , Venkatachari G.
Published: April 2007

In recent years, the conducting polymers are used in organic coatings as a replacement of chromate based pigments. The effectiveness of polydiphenylamine (PDPA) in the vinyl coating towards the corrosion protection of steel in acidic environment has been found out. The polymer PDPA was synthesized by chemical oxidation of diphenylamine by ammoniumpersulfate in hydrochloric acid medium. The polymer was characterized by FTIR and XRD. The corrosion protection performance of the PDPA containing 0–5% in vinyl coating on steel in 0.1N HCl has been assessed by electrochemical impedance spectroscopy. Coatings containing more than 3% PDPA are found to offer excellent corrosion protection of steel in acid media due to redox property of PDPA. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007
Vestiges of vibrissal capsular muscles exist in the human upper lip
Authors: Tamatsu Yuichi , Tsukahara Kazue , Hotta Mitsuyuki , Shimada Kazuyuki
Published: April 2007

In nonhuman mammals, sinus hairs grow around the nostrils and serve for tactile sensation. The hair follicles of sinus hairs are rooted in vibrissal capsular muscles connected to the underlying, deeper orbicularis oris, thereby enabling the voluntary movement of sinus hairs. These vibrissal capsular muscles as well as the sinus hairs are believed to have been lost during human evolution, and no previous reports can be found on the existence of vestiges of sinus hairs in humans. Our study, however, has now verified the existence of vestigial muscles of vibrissae in the human upper lip. Using conventional histological techniques, microscopic observations were made on specimens obtained from the upper lips of human adult cadavers. In 35% of these individuals, several striated muscle fascicles diverging from the underlying orbicularis oris and reaching the hair follicles were observed. Histological findings of the vibrissal capsular muscle complex suggest that these fascicles are a vestigial remnant of the sinus hair muscle. Clin. Anat. 20:628–631, 2007. © 2007 Wiley‐Liss, Inc.
Antiproliferative effects of some N‐benzylideneanilines
Authors: Özkay Yusuf , İncesu Zerrin , Işıkdağ İlhan , Yeşilkaya Mehmet
Published: April 2007

A series of Schiff bases including N‐benzylideneaniline (NBA) nuclei were prepared. The chemical products obtained were characterized by mass spectometry (APCI), 1H NMR, and IR spectroscopy in order to seek their cytotoxic and proliferation effects on human small lung (A549) and cervical (HeLa) cancer cell lines with biochemical assays. All of the synthesized compounds showed antiproliferative effects to different extents. Copyright © 2007 John Wiley & Sons, Ltd.
Structure and Bonding in Cyclic Isomers of BAl2Hnm (n = 3—6, m = ‐2 to +1): Preference for Planar Tetracoordination, Pyramidal Tricoordination, and Divalency
Authors: Jemmis Eluvathingal D. , Parameswaran Pattiyil
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
First‐Principles Calculations of the Structural and Electronic Properties of Cu3MN Compounds with M: Ni, Cu, Zn, Pd, Ag, and Cd.
Authors: Moreno‐Armenta Ma. Guadalupe , Lopez Perez William , Takeuchi Noboru
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The Synthesis and Structural Characterization of the New Ternary Nitrides: Ca4TiN4 and Ca5NbN5.
Authors: Hunting Janet L. , Szymanski Marta M. , Johnson Philip E. , Kellar C. Brenhin , DiSalvo Francis J.
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Na3F[WO4]: A Sodium Fluoride ortho‐Oxotungstate(VI) with Strands of Face‐Shared Fluoride‐Centred Sodium Octahedra According to ∞1{[FNa6/2]2+}.
Authors: Hartenbach Ingo , Schleid Thomas
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Ionothermal Synthesis of β‐NH4AlF4 and the Determination by Single Crystal X‐Ray Diffraction of Its Room Temperature and Low Temperature Phases.
Authors: Parnham Emily R. , Slawin Alex M. Z. , Morris Russell E.
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Rb2BaNb2Se11: A New Quaternary Niobium Polyselenide with Infinite Anionic Chains Composed of Nb2Se11 Building Block.
Authors: Wu Yuandong , Naether Christian , Bensch Wolfgang
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis, Structure and Magnetic Properties of Ln—W—O—N (Ln: Nd and Eu) Oxynitrides.
Authors: Pastrana‐Fabregas R. , Isasi‐Marin J. , Cascales C. , Saez‐Puche R.
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The Role of Cation—Cation Interactions in a Neptunyl Chloride Hydrate and Topological Aspects of Neptunyl Structural Units.
Authors: Forbes T. Z. , Burns P. C.
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis, Crystal Structure and Magnetic Characterization of Na2Cu5(Si2O7)2: An Inorganic Ferrimagnetic Chain.
Authors: Moreira dos Santos Antonio , Brandao Paula , Fitch Andrew , Reis Mario S. , Amaral Vitor S. , Rocha Joao
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Ag3Ni2O4 — A New Stage‐2 Intercalation Compound of 2H—AgNiO2 and Physical Properties of 2H—AgNiO2 above Ambient Temperature.
Authors: Soergel Timo , Jansen Martin
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Tropos Deoxycholic Acid‐Derived Biphenylphosphites: Synthesis, Stereochemical Characterization and Use as Chiral Ligands in the Copper‐Catalyzed Conjugate Addition of Diethylzinc to Acyclic Enones.
Authors: Facchetti Sarah , Losi Debora , Iuliano Anna
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Highly Selective Acetate Aldol Additions Using Mesityl‐Substituted Chiral Auxiliaries.
Authors: Crimmins Michael T. , Shamszad Mariam
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Enantiopure Chloroalcohols by Enzymatic Kinetic Resolution.
Authors: Haak Robert M. , Tarabiono Chiara , Janssen Dick B. , Minnaard Adriaan J. , de Vries Johannes G. , Feringa Ben L.
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
N‐Chloro‐N‐alkoxyureas: Synthesis, Structure and Properties.
Authors: Shtamburg Vasiliy G. , Shishkin Oleg V. , Zubatyuk Roman I. , Kravchenko Svetlana V. , Tsygankov Alexander V. , Mazepa Alexander V. , Klots Evgeny A. , Kostyanovsky Remir G.
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Facile Epoxidation of α,β‐Unsaturated Ketones with Cyclohexylidenebishydroperoxide.
Authors: Jakka Kavitha , Liu Jinyun , Zhao Cong‐Gui
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Rapid and Convenient Approach to Amines: Reduction of Imines Using Metallic Calcium in Ethylalcohol.
Authors: Mitoma Yoshiharu , Egashira Naoyoshi , Simion Cristian , Tashiro Masashi
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Photochemical α‐Bromination of Ketones Using N‐Bromosuccinimide: A Simple, Mild and Efficient Method.
Authors: Arbuj Sudhir S. , Waghmode Suresh B. , Ramaswamy A. V.
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Catalysis with Palladium Colloids Supported in Poly(acrylic Acid)‐Grafted Polyethylene and Polystyrene.
Authors: Bergbreiter David E. , Kippenberger Andrew , Zhong Zhenqi
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Perchloric Acid Adsorbed on Silica Gel (HClO4—SiO2) as an Inexpensive, Extremely Efficient, and Reusable Dual Catalyst System for Acetal/Ketal Formation and Their Deprotection to Aldehydes/Ketones.
Authors: Kumar Raj , Kumar Dinesh , Chakraborti Asit K.
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Phosphorus‐Bearing Axially Chiral Biaryls by Catalytic Asymmetric Cross‐Cyclotrimerization and a First Application in Asymmetric Hydrosilylation.
Authors: Heller Barbara , Gutnov Andrey , Fischer Christine , Drexler Hans‐Joachim , Spannenberg Anke , Redkin Dmitry , Sundermann Corinna , Sundermann Bernd
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Preparation of Enantiopure Long Chain threo‐2‐Amino‐3‐hydroxyesters via Chiral Morpholinone‐Derived Azomethine Ylids.
Authors: Brome Victoria A. , Harwood Laurence M. , Osborn Helen M. I.
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A New Approach for an Organocatalytic Multicomponent Domino Asymmetric Reaction.
Authors: Carlone Armando , Cabrera Silvia , Marigo Mauro , Joergensen Karl Anker
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stereochemical Investigation on the Construction of Poly‐Functionalized Bicyclo[3.3.1]nonenones by Successive Michael Reactions of 2‐Cyclohexenones.
Authors: Takagi Ryukichi , Miwa Yukiko , Nerio Takashi , Inoue Yuta , Matsumura Shuji , Ohkata Katsuo
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Catalytic Enantioselective Allenylation Reactions of Aldehydes with Tethered Bis(8‐quinolinolato) (TBOx) Chromium Complex.
Authors: Xia Guoyao , Yamamoto Hisashi
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Trimethylaluminum‐Assisted Alkynylation of Nitrones.
Authors: Bunlaksananusorn Tanasri , Lecourt Thomas , Micouin Laurent
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Catalytic Asymmetric Acylcyanation of Imines.
Authors: Pan Subhas Chandra , Zhou Jian , List Benjamin
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Urea as Ammonia Equivalent in Aryl Halides Amination Catalyzed by Palladium Complexes.
Authors: Artamkina G. A. , Sergeev A. G. , Shtern M. M. , Beletskaya I. P.
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Asymmetric Hydrogenation of α‐Chloro Aromatic Ketones Catalyzed by η6‐Arene/TsDPEN—Ruthenium(II) Complexes.
Authors: Ohkuma Takeshi , Tsutsumi Kunihiko , Utsumi Noriyuki , Arai Noriyoshi , Noyori Ryoji , Murata Kunihiko
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Heterogeneous Asymmetric Catalysis with Homochiral Metal—Organic Frameworks: Network‐Structure‐Dependent Catalytic Activity.
Authors: Wu Chuan‐De , Lin Wenbin
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Ligand‐Promoted Dehydrogenation of Alcohols Catalyzed by Cp*Ir Complexes. A New Catalytic System for Oxidant‐Free Oxidation of Alcohols.
Authors: Fujita Ken‐ichi , Tanino Nobuhide , Yamaguchi; Ryohei Yamaguchi; Ryohei
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Ti‐Direct, Powerful, Stereoselective Aldol‐Type Additions of Esters and Thioesters to Carbonyl Compounds: Application to the Synthesis and Evaluation of Lactone Analogues of Jasmone Perfumes.
Authors: Nagase Ryohei , Matsumoto Noriaki , Hosomi Kohei , Higashi Takahiro , Funakoshi Syunsuke , Misaki Tomonori , Tanabe Yoo
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Oxidation of Sulfides with Hydrogen Peroxide Catalyzed by 10,10′‐Linked Bisflavinium Perchlorates.
Authors: Imada Yasushi , Ohno Takashi , Naota Takeshi
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Anionic Four‐Electron Donor‐Based Palladacycles as Catalysts for Addition Reactions of Arylboronic Acids with α,β‐Unsaturated Ketones, Aldehydes, and α‐Ketoesters.
Authors: He Ping , Lu Yong , Dong Cheng‐Guo , Hu Qiao‐Sheng
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of 2‐Pentafluorosulfanylnaphthalene.
Authors: Dolbier William R. Jr. , Mitani Akira , Warren Robin D.
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Fully Regio‐ and endo‐Stereoselective Synthesis of New Polycyclic Allylic Sulfides via a Diels—Alder Reaction. Synthetically Useful Transformations of These Sulfides.
Authors: Koprowski Marek , Skowronska Aleksandra , Glowka Marek L. , Fruzinski Andrzej
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Examination of VANOL, VAPOL, and VAPOL Derivatives as Ligands for Asymmetric Catalytic Diels—Alder Reactions.
Authors: Heller Douglas P. , Goldberg Daniel R. , Wu Hongqiao , Wulff William D.
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Base‐Assisted Regio‐ and Diastereoselective Conversion of Functionalized Furans to Butenolides Using Singlet Oxygen.
Authors: Patil Santoshkumar N. , Liu Fei
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stereoselective Reduction of 2‐Butenolides to Chiral Butanolides by Reductases from Cultured Cells of Glycine max.
Authors: Shimoda Kei , Kubota Naoji , Hirata Toshifumi , Kondo Yoko , Hamada Hiroki
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Intramolecular Cyclization of Phenol Derivatives with C=C Double Bond in a Side Chain.
Authors: Ito Yoshihiko , Kato Risa , Hamashima Kentaro , Kataoka Yohei , Oe Yohei , Ohta Tetsuo , Furukawa Isao
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Novel Methods for the Synthesis of 5‐Substituted‐3‐carboxy‐2,5‐ and 4,5‐Dihydrothiophenes and 5‐Substituted 2‐ and 3‐Sulfolenes.
Authors: Wilkinson James A. , Ardes‐Guisot Nicolas , Ducki Sylvie , Leonard John
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Copper‐Catalyzed Transformation of Carbonyl‐ene‐nitrile Compounds: Vinylation, Imino Ene Reaction, and Alkynylation of 2‐Aza‐2,4‐cyclopentadienone Intermediates Generated via Ritte‐Type Hydration and Dehydrative Cyclization Reactions.
Authors: Murai Masahito , Kawai Shigekazu , Miki Koji , Ohe Kouichi
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and Investigation of Some 1,4‐Disubstituted 2‐Pyrrolidinones.
Authors: Brokaite K. , Mickevicius V. , Mikulskiene G.
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Nucleophilic Amination of 2‐Iodo‐3‐nitro‐1‐(phenylsulfonyl)indole.
Authors: Roy Sujata , Gribble Gordon W.
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Isoprene‐Catalyzed Lithiation: Deprotection and Functionalization of Imidazole Derivatives.
Authors: Torregrosa Rosario , Pastor Isidro M. , Yus Miguel
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Isoxazoles from 1,1‐Disubstituted Bromoalkenes.
Authors: Dadiboyena Sureshbabu , Xu Jianping , Hamme Ashton T. II
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Conformational Control on Remote Stereochemistry in the Intramolecular Pauson—Khand Reactions of Enynes Tethered to Homoallyl and Homopropargyl Alcohols.
Authors: Sezer Serdar , Oezdemirhan Devrim , Sahin Ertan , Tanyeli Cihangir
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Lewis Acid Tuned Facial Stereodivergent HDA Reactions Using β‐Substituted N‐Vinyloxazolidinones.
Authors: Gohier Frederic , Bouhadjera Keltoum , Faye Djibril , Gaulon Catherine , Maisonneuve Vincent , Dujardin Gilles , Dhal Robert
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Diastereoselective Conjugate Addition of Organocuprates to 3,4‐Dimethyl‐5,6‐dihydro‐2(1H)‐pyridinones. A Concise Synthesis of trans‐3,4‐Dimethyl‐4‐phenylpiperidines.
Authors: Oueslati Farhana , Perrio Cecile , Dupas Georges , Barre Louisa
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Rhodium(I)‐Catalyzed Allenic Carbocyclization Reaction Affording δ‐ and ε‐Lactams.
Authors: Brummond Kay M. , Painter Thomas O. , Probst Donald A. , Mitasev Branko
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Highly Effective One‐Pot Synthesis of Quinolines from o‐Nitroarylcarbaldehydes.
Authors: Li An‐Hu , et al. et al.
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Furo[2,3‐f]isoquinolines by Aromatic Claisen Rearrangement and Subsequent Cyclization.
Authors: Toerincsi Mercedes , Kolonits Pal , Palosi Endre , Novak Lajos
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stereoselective Intermolecular Formal [3 + 3] Cycloaddition Reaction of Cyclic Enamines and Enones.
Authors: Movassaghi Mohammad , Chen Bin
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
2‐(α‐Aryloxyacetyl)‐phenoxathiin Derivatives. Synthesis and Properties.
Authors: Radutiu Ana Cristina , Baciu Ion , Caproiu Miron Teodor , Draghici Constantin , Nicolae Anca , Constantinescu Titus , Balaban Alexandru T.
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of New CF3‐Containing Pyridazinone and Lactam Derivatives.
Authors: Dinoiu Vasile
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A New Approach to N‐3 Functionalized 3,4‐Dihydropyrimidine‐2(1H)‐ones with 1,2,4‐Oxadiazole Group as Amide Isostere via Ionic Liquid‐Phase Technology.
Authors: Legeay Jean Christophe , Vanden Eynde Jean Jacques , Bazureau Jean Pierre
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
One‐Pot Synthesis of Novel α,β‐Dichloro‐β‐trifluoromethylated Enones and Their Application to the Synthesis of Trifluoromethylated Heterocycles.
Authors: Jeon Sung Lan , Kim Joa Kyum , Son Jang Bae , Kim Bum Tae , Jeong In Howa
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and Antiinflammatory Activity of 2,3‐Diaryl‐4(3H)‐quinazolinones.
Authors: Yadav M. R. , Shirude S. T. , Parmar A. , Balaraman R. , Giridhar R.
Published: April 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.