New Family (new + family)

Distribution by Scientific Domains
Distribution within Chemistry

Terms modified by New Family

  • new family member

  • Selected Abstracts


    A NEW FAMILY OF DIVERGENCE MEASURES FOR TESTS OF FIT

    AUSTRALIAN & NEW ZEALAND JOURNAL OF STATISTICS, Issue 2 2010
    K. Mattheou
    Summary The aim of this work is to investigate a new family of divergence measures based on the recently introduced Basu, Harris, Hjort and Jones (BHHJ) measure of divergence (Biometrika,85, 549,559). The new family is investigated in connection with hypothesis testing problems, and new test statistics are proposed. Simulations are performed to check the appropriateness of the proposed test statistics. [source]


    Four New Families with Autosomal Dominant Partial Epilepsy with Auditory Features: Clinical Description and Linkage to Chromosome 10q24

    EPILEPSIA, Issue 1 2002
    Melodie R. Winawer
    Summary: ,Purpose: Autosomal dominant partial epilepsy with auditory features (ADPEAF) is a rare form of nonprogressive lateral temporal lobe epilepsy characterized by partial seizures with auditory disturbances. The gene predisposing to this syndrome was localized to a 10-cM region on chromosome 10q24. We assessed clinical features and linkage evidence in four newly ascertained families with ADPEAF, to refine the clinical phenotype and confirm the genetic localization. Methods: We genotyped 41 individuals at seven microsatellite markers spanning the previously defined 10-cM minimal genetic region. We conducted two-point linkage analysis with the ANALYZE computer package, and multipoint parametric and nonparametric linkage analyses as implemented in GENEHUNTER2. Results: In the four families, the number of individuals with idiopathic epilepsy ranged from three to nine. Epilepsy was focal in all of those with idiopathic epilepsy who could be classified. The proportion with auditory symptoms ranged from 67 to 100%. Other ictal symptoms also were reported; of these, sensory symptoms were most common. Linkage analysis showed a maximum 2-point LOD score of 1.86 at (, = 0.0 for marker D10S603, and a maximum multipoint LOD score of 2.93. Conclusions: These findings provide strong confirmation of linkage of a gene causing ADPEAF to chromosome 10q24. The results suggest that the susceptibility gene has a differential effect on the lateral temporal lobe, thereby producing the characteristic clinical features described here. Molecular studies aimed at the identification of the causative gene are underway. [source]


    Creating New Families, Therapeutic Approaches To Fostering, Adoption, and Kinship Care by Jenny Kenrick, Caroline Lindsey and Lorraine Tollemache (eds)

    JOURNAL OF FAMILY THERAPY, Issue 1 2008
    Glyn Jackson
    No abstract is available for this article. [source]


    ChemInform Abstract: New Families of Enantiopure Cyclohexenone cis-Diol, o-Quinol Dimer and Hydrate Metabolites from Dioxygenase-Catalyzed Dihydroxylation of Phenols.

    CHEMINFORM, Issue 42 2009
    Derek R. Boyd
    Abstract 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 of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]


    Creating New Families: Therapeutic Approaches to Fostering, Adoption and Kinship Care

    CHILD AND ADOLESCENT MENTAL HEALTH, Issue 1 2008
    Roger Weissman
    No abstract is available for this article. [source]


    Magnetic, 57Fe Mössbauer, and IR Monitoring of the Thermal Spin Transition in a New Family of Iron(II) Spin-Transition Complexes

    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, Issue 12 2003
    Arno F. Stassen
    Abstract A new family of iron(II) tetrafluoroborate and perchlorate spin-crossover compounds has been synthesised and is discussed. The iron(II) ion is surrounded by six 1-ethyltetrazole ligands, which are halogen-substituted on the C2 atom of the ethyl group. The spin-crossover temperatures T1/2 are high compared to the unsubstituted (1-alkyltetrazole)iron(II) complexes. The shape of the spin-transition curve (i.e. ,HS vs. T) varies largely over the different complexes and appears to be influenced neither by the crystal packing, nor by the electronic effects. The temperature-dependent spin-transition behaviour has been studied by magnetic susceptibility and by 57Fe-Mössbauer spectroscopy. These data have been supported by temperature-dependent mid-range infrared spectroscopy: the thermally induced spin transition has been observed by direct monitoring of the aromatic C,H stretching frequency. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003) [source]


    Synthesis of Isoxazolopyridobicyclooxacalix[4]arenes: A New Family of Heteracalixarene Systems

    EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 32 2008
    Serena Ferrini
    Abstract A new family of isoxazolopyridobicyclooxacalix[4]arenes was obtained by reaction of dichloroisoxazolopyridines with phloroglucinol. X-ray crystallography and density functional calculations were used for their structural determination and evaluation of their chemical properties. Their role as metal chelators was studied by mass spectrometry. This new family of heteracalixarenes is of potential interest for host,guest interactions. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008) [source]


    LIV-1 Breast Cancer Protein Belongs to New Family of Histidine-Rich Membrane Proteins with Potential to Control Intracellular Zn2+ Homeostasis

    IUBMB LIFE, Issue 4 2000
    K. M. Taylor
    Abstract Investigation of the protein product of the oestrogen-regulated gene LIV-1, implicated in metastatic breast cancer, has revealed 10 protein sequences of unknown function that belong to a new family with potential to control intracellular Zn2+ homeostasis. Sequence alignment highlights the similarity in transmembrane domains and extramembrane charged residues, indicating potential ion-transport ability. This family has a novel highly conserved motif of 66 residues, including a transmembrane domain and a catalytic zinc-binding sequence of zinc metalloproteases, containing conserved (indicated in bold type) proline and glutamine residues, HEXPHEXGD. These proteins contain more plentiful histidine-rich repeats than zinc transporters, suggesting an ability to bind or transport zinc across membranes. I propose that these 11 proteins form a new family with the potential to control intracellular Zn2+ homeostasis. [source]


    Optimization of a Composite Working Electrode for a New Family of Electrochemical Cell for NO Decomposition

    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, Issue 7 2003
    Kazuyuki Matsuda
    The electrochemical properties of a composite (NiO)x,(yttria-stabilized zirconia (YSZ))1,x working electrode for a new type of electrochemical cell for NO decomposition in the presence of excess oxygen are investigated. It is shown that the dependence of the NO conversion on the value of the current passed through the electrochemical cell with a nanoporous (NiO)x,(YSZ)1,x working electrode is linear and that the value of current efficiency depends on the NO and O2 gas concentrations only (,= [NO] /([NO] + 2[O2]). The optimum NiO addition (35% by volume) to the YSZ resulted in a decrease of the cell operating voltage and, as a result, in a decrease in the electrical power required for NO decomposition. The observed high performance of the composite working electrode at this composition is consistent with the effective medium percolation theory, which predicts the ambipolar transport behavior of the composite mixed ionic,electronic (YSZ,NiO) conductors as a function of the volume fraction of each of the randomly distributed constituent phases. [source]


    A New Family of Styrene/Diene Rubbers

    MACROMOLECULAR CHEMISTRY AND PHYSICS, Issue 9 2007
    Philippe Zinck
    Abstract The insertion of single styrene units into polyisoprene is demonstrated using borohydrido rare earth/dialkylmagnesium systems. This yields a new family of styrene/diene copolymers (SBR rubbers). The resulting poly[(1,4- trans -isoprene)- co -styrene] exhibits quite narrow molecular weight distributions, up to 30% inserted styrene, and a 96,98% 1,4- trans -microstructure. The presence of a bulky and electron-rich ligand in the coordination sphere of the metal leads to an increase of the amount of styrene inserted and narrower chemical composition and molecular weight distributions. The presence of significant quantities of styrene in the medium does not alter the selectivity of the reaction, in contrast with cis -specific polymerizations. [source]


    Radical Polymerisation of 1H,1H,2H,2H-perfluoro-3,5-alkyldiynol and 1H,1H-perfluoro-2,4-alkyldiynol Acrylates and Methacrylates: A New Family of Fluorinated Polymers

    MACROMOLECULAR CHEMISTRY AND PHYSICS, Issue 2 2004
    Ana Robert Estelrich
    Abstract Summary: The preparation of a new family of acrylic esters with a perfluorinated chain directly bonded to one or two conjugated triple bonds from 1H,1H,2H,2H-perfluoro-3,5-alkyldiynol and 1H,1H-perfluoro-2,4-alkyldiynol is reported. Their solution homopolymerisation was studied in the presence of a radical initiator and it was found that the polymerisation process bore more similarity to that observed with the analogous hydrocarbonated monomers containing triple bonds rather than that observed with polyfluorinated monomers without any alkyne groups. Furthermore, under the reaction conditions used, the triple bonds remained unchanged as there was no cross-linking process. The homopolymers obtained were characterised by NMR, infrared spectroscopy and gel permeation chromatography whenever possible. Structure of new fluorinated homopolymers. [source]


    White Sponge Nevus: Presentation of a New Family

    PEDIATRIC DERMATOLOGY, Issue 1 2008
    D.D.S., Ph.D., PÍA LÓPEZ JORNET M.D.
    The lesions consisted of white asymptomatic patches in the oral mucosa. [source]


    A New Family of Moths from the Middle Jurassic (Insecta: Lepidoptera)

    ACTA GEOLOGICA SINICA (ENGLISH EDITION), Issue 4 2010
    HUANG Diying
    Abstract: Three lepidopteran species, from the Middle Jurassic Daohugou beds (inner Mongolia, China), are described in a new family, Mesokristenseniidae, and new genus, Mesokristensenia, which could represent the sister group of the Micropterigidae. Mesokristensenia differs from all extant Lepidoptera, but one genus (Agathiphaga, Agathiphagidae), in retaining four median veins in the forewing, a plesiomorphy also present in many Trichoptera. Evidence for placing Mesokristensenia in the Lepidoptera includes four traits, notably a previously unrecorded autapomorphy of this insect order: beyond stem M1+2, vein M1 is bent and connected to cross-vein r-m (in both wing pairs). Among 24 characters taken into account to assess the systematic position of Mesokristensenia, 12 are considered informative for a cladistic analysis involving this fossil taxon and the four suborders recognized in present-day Lepidoptera (Zeugloptera, Aglossata, Heterobathmiina, and Glossata). [source]


    ChemInform Abstract: AA,2Rh6O12: A New Family of Rhodium Oxides Exhibiting High Thermopower Coupled with High Electrical Conductivity.

    CHEMINFORM, Issue 25 2009
    Hiroshi Mizoguchi
    Abstract 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 of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]


    A New Family of Heavy-Fermion Compounds: U4TGa12 (T: Fe, Co, Rh and Pd).

    CHEMINFORM, Issue 25 2007
    R. Jardin
    Abstract 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. [source]


    Design of a New Family of Inorganic Compounds Ae2F2SnX3 (Ae: Sr, Ba; X: S, Se) Using Rock Salt and Fluorite 2D Building Blocks.

    CHEMINFORM, Issue 15 2006
    Houria Kabbour
    Abstract 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. [source]


    Application of a New Family of P,N Ligands to the Highly Enantioselective Hydrosilylation of Aryl Alkyl and Dialkyl Ketones.

    CHEMINFORM, Issue 5 2003
    Beata Tao
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]


    Helical Chiral Pyridine N -Oxides: A New Family of Asymmetric Catalysts

    CHEMISTRY - A EUROPEAN JOURNAL, Issue 30 2009
    Jinshui Chen Dr.
    Abstract Optically active chiral alkyl chlorides are valuable compounds because of their bioactivity and versatile synthetic utility. Accordingly, the ring opening of epoxides with a chloride nucleophile stands as an important goal in asymmetric catalysis. We describe herein recent advances in the design and development of chiral pyridine N -oxide catalysts for the enantioselective synthesis of chlorohydrins. [source]


    Carbon-Supported Ruthenium Nanoparticles Stabilized by Methylated Cyclodextrins: A New Family of Heterogeneous Catalysts for the Gas-Phase Hydrogenation of Arenes

    CHEMISTRY - A EUROPEAN JOURNAL, Issue 27 2008
    Audrey Denicourt-Nowicki Dr.
    Cooperation effects: A novel strategy to obtain heterogeneous catalysts for gas-phase hydrogenation has been developed, based on metallic nanoparticles stabilized by methylated cyclodextrins (CDs) and adsorbed onto charcoal. The CDs appear as multifunctional molecular receptors capable of stabilizing and dispersing the metallic particles on the support and modifying the stereoselectivity through host,guest interactions. [source]


    A New Family of Homoleptic Ir(III) Complexes: Tris-Pyridyl Azolate Derivatives with Dual Phosphorescence

    CHEMPHYSCHEM, Issue 11 2006
    Yu-Shan Yeh
    Blue-emitting complexes: Iridium complexes (see figure) exhibit dual phosphorescence. The blue phosphorescence at room temperature, attributed to TILCT,TLLCT conversion, occurs via a high energy barrier (,6.9 kcal,mol,1) resulting from large-amplitude motions, such as partial twisting of the chelate groups which flip the orbital configuration and consequently results in dual phosphorescence. [source]


    Iminohydroxamato Early and Late Transition Metal Halide Complexes , New Precatalysts for Aluminoxane-Cocatalyzed Olefin Insertion Polymerization

    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, Issue 8 2004
    Alexander Krajete
    Abstract We report on new families of non-metallocene metal precatalysts for olefin polymerization with titanium, zirconium, vanadium and nickel as the active metal sites. The novel ligand design concept is based on iminohydroxamic acids and their derivatives as the principal chelating units. Various anionic and neutral [N,O] and [N,N] ligand systems are easily accessible by a modular synthetic sequence of imidoyl chlorides with substituted hydroxylamines or hydrazines, respectively. Steric protection of the metal coordination site, a necessary requirement for suppression of chain termination pathways of non-metallocene catalysts, is brought about by bulky aryl substituents on the imino nitrogen atoms. Crystal structures of some of the hydroxamato ligands reveal interesting intermolecular hydrogen-bridged structures, whereas in the solid-state structure of one titanium precatalyst a five-membered chelate was observed, in line with the design principle of these systems. Preliminary ethylene polymerization studies with methylaluminoxane-activated metal complexes (M = Ti, Zr, V, Ni) show that the most active systems are [N,O]NiBr2 catalysts containing neutral O -alkyl iminohydroxamate ligands. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004) [source]


    Turcot syndrome confirmed with molecular analysis

    EUROPEAN JOURNAL OF NEUROLOGY, Issue 4 2007
    C. Lebrun
    Turcot syndrome is clinically characterized by the occurrence of primary brain tumor and colorectal tumor and has, in previous reports, been shown associated with germline mutations in the genes APC, MLH1, MHS6, and PMS2. To date, only few families have been documented by molecular analysis. We report two new families with Turcot syndrome to illustrate and review its characteristics and facilitate diagnosis. Molecular analysis revealed two germline mutations, one in the MLH1 gene and one in MSH2. The latter has never been describe in the literature. Personal and familial relevant anamnestic data from patients with glioma might aid in the diagnosis of genetic disorders. The subsequent molecular characterization may contribute to the appropriate care of affected patients and asymptomatic gene carriers. [source]


    Electric/magnetic deformations of S3 and AdS3, and geometric cosets,

    FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 1 2005
    D. Israël
    We analyze asymmetric marginal deformations of SU(2)k and SL(2,,)k WZW models. These appear in heterotic string backgrounds with non-vanishing Neveu,Schwarz three-forms plus electric or magnetic fields, depending on whether the deformation is elliptic, hyperbolic or parabolic. Asymmetric deformations create new families of exact string vacua. The geometries which are generated in this way, deformed S3 or AdS3, include in particular geometric cosets such as S2, AdS2 or H2. Hence, the latter are consistent, exact conformal sigma models, with electric or magnetic backgrounds. We discuss various geometric and symmetry properties of the deformations at hand as well as their spectra and partition functions, with special attention to the supersymmetric AdS2 × S2 background. We also comment on potential holographic applications. [source]


    Hydrogels for Soft Machines

    ADVANCED MATERIALS, Issue 7 2009
    Paul Calvert
    Abstract Hydrogels have applications in surgery and drug delivery, but are never considered alongside polymers and composites as materials for mechanical design. This is because synthetic hydrogels are in general very weak. In contrast, many biological gel composites, such as cartilage, are quite strong, and function as tough, shock-absorbing structural solids. The recent development of strong hydrogels suggests that it may be possible to design new families of strong gels that would allow the design of soft biomimetic machines, which have not previously been possible. [source]


    Integer programming solution approach for inventory-production,distribution problems with direct shipments

    INTERNATIONAL TRANSACTIONS IN OPERATIONAL RESEARCH, Issue 3 2008
    Miguel A. Lejeune
    Abstract We construct an integrated multi-period inventory,production,distribution replenishment plan for three-stage supply chains. The supply chain maintains close relationships with a small group of suppliers, and the nature of the products (bulk, chemical, etc.) makes it more economical to rely upon a direct shipment, full-truck load distribution policy between supply chain nodes. In this paper, we formulate the problem as an integer linear program that proves challenging to solve due to the general integer variables associated with the distribution requirements. We propose new families of valid cover inequalities, and we derive a practical closed-form expression for generating them, upon the determination of a single parameter. We study their performances through benchmarking several branch-and-bound and branch-and-cut approaches. Computational testing is performed using a large-scale planning problem faced by a North American company. [source]


    Families of pairs of graphs with a large number of common cards

    JOURNAL OF GRAPH THEORY, Issue 2 2010
    Andrew Bowler
    Abstract The vertex-deleted subgraph G,v, obtained from the graph G by deleting the vertex v and all edges incident to v, is called a card of G. The deck of G is the multiset of its unlabelled vertex-deleted subgraphs. The number of common cards of G and H (or between G and H) is the cardinality of the multiset intersection of the decks of G and H. In this article, we present infinite families of pairs of graphs of order n , 4 that have at least common cards; we conjecture that these, along with a small number of other families constructed from them, are the only pairs of graphs having this many common cards, for sufficiently large n. This leads us to propose a new stronger version of the Reconstruction Conjecture. In addition, we present an infinite family of pairs of graphs with the same degree sequence that have common cards, for appropriate values of n, from which we can construct pairs having slightly fewer common cards for all other values of n,10. We also present infinite families of pairs of forests and pairs of trees with and common cards, respectively. We then present new families that have the maximum number of common cards when one graph is connected and the other disconnected. Finally, we present a family with a large number of common cards, where one graph is a tree and the other unicyclic, and discuss how many cards are required to determine whether a graph is a tree. © 2009 Wiley Periodicals, Inc. J Graph Theory 63: 146,163, 2010 [source]


    Adoption, permanent care and foster care: Home-based care in and beyond the 1990s

    JOURNAL OF PAEDIATRICS AND CHILD HEALTH, Issue 5 2000
    C O'Neill
    Abstract: Home-based care in Australia has changed considerably in the past two decades. The majority of children in adoptive, permanent care and foster families are likely to have experienced abuse, neglect and multiple placements. The disruptive behaviours displayed by these children undermine the potential for attachment offered by their new families. While the needs of the child will be obvious, the challenge for paediatricians is to recognize the relative instability of these newly established families and the high levels of stress they experience. [source]


    Anatomy and lifestyles of Early Cambrian priapulid worms exemplified by Corynetis and Anningvermis from the Maotianshan Shale (SW China)

    LETHAIA, Issue 1 2004
    DI-YING HUANG
    Accurate information on the anatomy and ecology of worms from the Cambrian Lagerstätten of SW China is sparse. The present study of two priapulid worms Anningvermis n. gen. and Corynetis Luo & Hu, 1999 from the Lower Cambrian Maotianshan Shale biota brings new information concerning the anatomical complexity, functional morphology and lifestyles of the Early Cambrian priapulids. Comparisons are made with Recent priapulids from Sweden (live observations, SEM). The cuspidate pharyngeal teeth of Anningvermis (circumoral pentagons) and the most peculiar radiating oral crown of Corynetis added to the very elongate pharynx of these two forms are interpreted as two different types of grasping apparatus possibly involved in the capture of small prey. Corynetis and Anningvermis are two representative examples of the Early Cambrian endobenthic communities largely dominated by priapulid worms (more than ten species in the Maotianshan Shale biota) and to a much lesser extent by brachiopods. Corynetis and Anningvermis were probably active mud-burrowers and predators of small meiobenthic animals. Likewise predator priapulid worms exploited the interface layer between the seawater and bottom sediment, where meiobenthic organisms were abundant and functioned as prey. This implies that complex prey-predator relationship between communities already existed in the Early Cambrian. This study also shows that the circumoral pentagonal teeth and caudal appendage were present in the early stages of the evolutionary history of the group and were important features of the priapulid body plan already in the Early Cambrian. Two new families, one new genus and new species are introduced and described in the appendix. [source]


    Random vectors satisfying Khinchine,Kahane type inequalities for linear and quadratic forms

    MATHEMATISCHE NACHRICHTEN, Issue 9 2005
    Jesús Bastero
    Abstract We study the behaviour of moments of order p (1 < p < ,) of affine and quadratic forms with respect to non log-concave measures and we obtain an extension of Khinchine,Kahane inequality for new families of random vectors by using Pisier's inequalities for martingales. As a consequence, we get some estimates for the moments of affine and quadratic forms with respect to a tail volume of the unit ball of lnq (0 < q < 1). (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) [source]


    Lethal and sub-lethal effects of spinosad on bumble bees (Bombus impatiens Cresson)

    PEST MANAGEMENT SCIENCE (FORMERLY: PESTICIDE SCIENCE), Issue 7 2005
    Lora A Morandin
    Abstract Recent developments of new families of pesticides and growing awareness of the importance of wild pollinators for crop pollination have stimulated interest in potential effects of novel pesticides on wild bees. Yet pesticide toxicity studies on wild bees remain rare, and few studies have included long-term monitoring of bumble bee colonies or testing of foraging ability after pesticide exposure. Larval bees feeding on exogenous pollen and exposed to pesticides during development may result in lethal or sub-lethal effects during the adult stage. We tested the effects of a naturally derived biopesticide, spinosad, on bumble bee (Bombus impatiens Cresson) colony health, including adult mortality, brood development, weights of emerging bees and foraging efficiency of adults that underwent larval development during exposure to spinosad. We monitored colonies from an early stage, over a 10-week period, and fed spinosad to colonies in pollen at four levels: control, 0.2, 0.8 and 8.0 mg kg,1, during weeks 2 through 5 of the experiment. At concentrations that bees would likely encounter in pollen in the wild (0.2,0.8 mg kg,1) we detected minimal negative effects to bumble bee colonies. Brood and adult mortality was high at 8.0 mg kg,1 spinosad, about twice the level that bees would be exposed to in a ,worst case' field scenario, resulting in colony death two to four weeks after initial pesticide exposure. At more realistic concentrations there were potentially important sub-lethal effects. Adult worker bees exposed to spinosad during larval development at 0.8 mg kg,1 were slower foragers on artificial complex flower arrays than bees from low or no spinosad treated colonies. Inclusion of similar sub-lethal assays to detect effects of pesticides on pollinators would aid in development of environmentally responsible pest management strategies. Copyright © 2005 Society of Chemical Industry [source]