bluuebunny/crossref_metadata_2025_split huggingface dataset:
Projective geometry in characteristic one and the epicyclic category
Authors: Connes Alain , Consani Caterina 
Published: July 2016

AbstractWe show that the cyclic and epicyclic categories which play a key role in the encoding of cyclic homology and the lambda operations, are obtained from projective geometry in characteristic one over the infinite semifield ofmax-plus integersℤmax. Finite-dimensional vector spaces are replaced by modules defined by restriction of scalars from the one-dimensional free module, using the Frobenius endomorphisms of ℤmax. The associated projective spaces arefiniteand provide a mathematically consistent interpretation of Tits's original idea of a geometry over the absolute point. The self-duality of the cyclic category and the cyclic descent number of permutations both acquire a geometric meaning.
Deformations with constant Lê numbers and multiplicity of nonisolated hypersurface singularities
Authors: Eyral Christophe , Soares Ruas Maria Aparecida 
Published: July 2016

AbstractWe show that the possible jump of the order in an 1-parameter deformation family of (possibly nonisolated) hypersurface singularities, with constant Lê numbers, is controlled by the powers of the deformation parameter. In particular, this applies to families of aligned singularities with constant topological type—a class for which the Lê numbers are “almost” constant. In the special case of families withisolatedsingularities—a case for which the constancy of the Lê numbers is equivalent to the constancy of the Milnor number—the result was proved by Greuel, Plénat, and Trotman.As an application, we prove equimultiplicity for new families of nonisolated hypersurface singularities with constant topological type, answering partially the Zariski multiplicity conjecture.
A McShane-type identity for closed surfaces
Authors: Huang Yi 
Published: July 2016

Abstract.We prove a McShane-type identity: a series, expressed in terms of geodesic lengths, that sums to 2π for any closed hyperbolic surface with one distinguished point. To do so, we prove a generalized Birman-Series theorem showing that the set of complete geodesics on a hyperbolic surface with large cone angles is sparse.
Torsion in tensor powers of modules
Authors: Celikbas Olgur , Iyengar Srikanth B. , Piepmeyer Greg , Wiegand Roger 
Published: July 2016

AbstractTensor products usually have nonzero torsion. This is a central theme of Auslander's 1961 paper; the theme continues in the work of Huneke and Wiegand in the 1990s. The main focus in this article is on tensor powers of a finitely generated module over a local ring. Also, we study torsion-free modulesNwith the property thatM ⊗RNhas nonzero torsion unlessMis very special. An important example of such a moduleNis the Frobenius powerpeRover a complete intersection domainRof characteristicp&gt; 0.
Semiclassical orthogonal polynomial systems on nonuniform lattices, deformations of the Askey table, and analogues of isomonodromy
Authors: Witte N. S. 
Published: July 2016

AbstractA 𝔻-semiclassical weight is one which satisfies a particular linear, first-order homogeneous equation in a divided-difference operator 𝔻. It is known that the system of polynomials, orthogonal with respect to this weight, and the associated functions satisfy a linear, first-order homogeneous matrix equation in the divided-difference operator termed thespectral equation. Attached to the spectral equation is a structure which constitutes a number of relations such as those arising from compatibility with the three-term recurrence relation. Here this structure is elucidated in the general case of quadratic lattices. The simplest examples of the 𝔻-semiclassical orthogonal polynomial systems are precisely those in the Askey table of hypergeometric and basic hypergeometric orthogonal polynomials. However within the 𝔻-semiclassical class it is entirely natural to define a generalization of the Askey table weights which involve a deformation with respect to new deformation variables. We completely construct the analogous structures arising from such deformations and their relations with the other elements of the theory. As an example we treat the first nontrivial deformation of the Askey–Wilson orthogonal polynomial system defined by the q-quadratic divided-difference operator, the Askey–Wilson operator, and derive the coupled first-order divided-difference equations characterizing its evolution in the deformation variable. We show that this system is a member of a sequence of classical solutions to theq-Painlevé system.
Instability of periodic traveling waves for the symmetric regularized long wave equation
Authors: Pava Jaime Angulo , Brango Carlos Alberto Banquet 
Published: July 2016

AbstractWe prove the linear and nonlinear instability of periodic traveling wave solutions for a generalized version of the symmetric regularized long wave (SRLW) equation. Using analytic and asymptotic perturbation theory, we establish sufficient conditions for the existence of exponentially growing solutions to the linearized problem and so the linear instability of periodic profiles is obtained. An application of this approach is made to obtain the linear/nonlinear instability of cnoidal wave solutions for the modified SRLW (mSRLW) equation. We also prove the stability of dnoidal wave solutions associated to the equation just mentioned.
Some constructions of modular forms for the Weil representation of SL2(ℤ)
Authors: Scheithauer Nils R. 
Published: July 2016

AbstractModular forms for the Weil representation of SL2(ℤ) play an important role in the theory of automorphic forms on orthogonal groups. In this paper we give some explicit constructions of these functions. As an application, we construct new examples of generalized Kac-Moody algebras whose denominator identities are holomorphic automorphic products of singular weight. They correspond naturally to the Niemeier lattices with root systemsand to the Leech lattice.
Democracy, society and truth: an exploration of Catholic social teaching
Authors: Bretherton Luke 
Published: July 2016

AbstractThis article maintains that modern Catholic social teaching took shape by positioning itself between revolutionary ideologies that sought to destroy the church and reactionary forces that sought to instrumentalise it. Among the factors that contributed to this development were the emergence of a theologyical and socio-political conception of the laity, reflection on the question of how humans participate in Christ's rule, the development of a consociational vision of sovereignty in distinction from top-down or monistic views, the importance of labour to a proper understanding of human dignity, and the discovery of ‘society’, as distinct from the market and the state. Appreciation of these factors resulted in the magisterial defence of democratic politics as a necessary condition for telling the truth about what it means to be human.
Calcium, magnesium and phosphorus in lactation and the dry period
Authors: Pickard D.W. 
Published: July 2016

This paper will deal with the relevance of calcium, phosphorus and magnesium intakes to the variations which are seen in the plasma levels of these elements in dairy cows during lactation and the dry period.CalciumThere is to my knowledge no report of any consistent effect of age, milk yield, season or level of calcium intake on the level of calcium in the blood of dairy cows. Changes do, however, take place in the blood level of calcium and it is the factors which influence the extent of such changes which I will discuss, particularly those relating to milk fever.
7.5 Methods of maintaining and improving sheep production in the Middle East and North Africa
Authors: Campbell C. 
Published: July 2016

Sheep are the most numerous and important livestock species in the Middle East and North Africa and number around 100 million head (Table 7.5.1). The following are the most important reasons for sheep being so significant in these areas:—Sheep are a triple purpose species producing meat, milk and wool. Their meat is the most desired in all Islamic countries, they hold a special place with the camel in the Islamic religion and are important as sacrificial animals on feast days. Most important of all, sheep will continue to survive under conditions where most other animals will die due to heat and undernutrition.
Lamb
Authors: Barrett John A. 
Published: July 2016

The country is fortunate to possess a National sheep flock of 34 million head — not far short of the people population and a lot less trouble. Upon this flock there depend numerous farmers, advisers, abattoir operators, retailers and all of their associated staffs. All such groups, whilst having personal objectives, are part of one process to bring a product of acceptable quality to the consumer.I consider it necessary to state this clearly because, as we all protect and fight for our sectional interests within one industry, we do well to remind ourselves of the paramount importance of satisfying our final customer. We are no longer providing meat to feed the hungry public prepared to accept standards the industry decides it will impose. We are providing lamb which must compete in fatness, eating quality and price terms, alongside innumerable alternative fresh meats, fast food and convenience products.
Cattle
Authors: Allen David M. 
Published: July 2016

There are signs that major buyers are beginning to specify their beef requirements in terms of slaughter date and age, slaughter weight, carcass fatness and carcass conformation. This should give new impetus to the adoption by producers of planned production systems.There is increasing interest in specifications which ensure good eating quality and this may have implications for producers, in the way they produce and marjcet their cattle.Producers need to be convinced that the specifications are realistic and that pricing makes it worth producing to the specification.
Charter quality bacon and its implications for producers
Authors: Binks G. , Chadwick J. P. 
Published: July 2016

The launch of the British Charter Quality Bacon Scheme, by the British Bacon Marketing Group (BBMG) in May 1982, represented a major initiative on behalf of the bacon industry, and an opportunity for British producers, curers, wholesalers and retailers to increase both the total bacon market and their share of it. In particular, the Scheme differs from other quality assurance schemes in two main areas.(1) A commitment to the Scheme by over 40 UK curers, responsible for 90% of British bacon produced; and(2) An independent inspection service for both plant and product, carried out by staff of the Meat and Livestock Commission.
The influence of the thermal environment on the productivity of pigs
Authors: Close W. H. 
Published: July 2016

AbstractAlthough the environment comprises all aspects of the animals' surroundings, it is the climatic component which has the biggest effect upon productivity. The most convenient way to assess the environmental requirements of the pig is to determine its lower critical temperature and those animal, nutritional and environmental factors which influence it. This knowledge can then be used to assess the suitability of the various nutritional, husbandry and management systems for pig production including their manipulation to supply the correct environmental and housing conditions for optimal growth, development and reproduction. If conditions are not optimal then characteristics such as growth rate, food utilization, carcass composition, acquisition of immunity, sexual development and reproductive performance will be impaired. However, knowledge of the climatic requirements of the pig allows action to be taken to correct for any inadequacy of the environment and thus ensure optimum productivity. In addition, it allows greater precision in assessing food requirements and permits a rational approach to be used in the design of buildings and in deciding the type of housing, and management and husbandry practices most suited to the different types of pig production.
Critical notes on the locus coeruleus hypothesis of panic disorder
Authors: den Boer J.A. , Westenberg H.G.M. 
Published: July 2016

SummaryOne of the theories on the biology of panic disorder which received much attention is the locus coeruleus hypothesis. This hypothesis states that there exists an episodic overactivity of noradrenergic systems in panic disorder. Experiments with yohimbine form the cornerstone of this theory, and additional supporting evidence is provided by challenge studies with isoproterenol and treatment studies with clonidine. These studies are critically reviewed and it is argued that based upon the studies with yohimbine one cannot conclude that there is a specific noradrenergic abnormality in panic disorder, since yohimbine also affects dopaminergic and serotoninergic neurons in the brain.In an alternative theory on the relationship between noradrenaline and anxiety it is postulated that increases in anxiety, irrespective of the diagnostic category, are related to increases in locus coeruleus activity.
A decade of biological psychiatric research on OCD (I): introduction and treatment-studies
Authors: Leeuw A.S. De , Boer J.A. Den , Westenberg H.G.M. 
Published: July 2016

SummaryIn this first part of a review on biological psychiatric aspects of obsessive-compulsive disorder (OCD), firstly a short introduction is given about historical, diagnostic and epidemiological issues concerning OCD. Subsequently pharmacologic treatment-studies are discussed. Only serotonin (5-HT) reuptake blockers are proven to be effective. There is accumulating evidence that this therapeutic effect is not due to antidepressant effects. The results of the treatment-studies strongly suggests that 5-HT is involved in OCD. CSF-studies seem to confirm this. Possibly the therapeutic effect is related with adaptive changes of 5-HT receptors. There is evidence that in a subgroup of O CD-patients the dopaminergic system is involved.
Puberty or heridity?
Authors: Dalen R.A.H. Van , Boer J.A. Den 
Published: July 2016

SummaryIn this paper a case history is described of a young male patient who gradually developed progressive personality changes and psychiatric complaints. This was subsequently followed by neurological symptoms and dementia. The patient appeared to be suffering from the adult form of metachromatic leucodystrophy (MLD). MLD is a rare disease with an autosomal-recessive mode of inheritance. The pathogenesis involves a deficiency of the enzyme arylsulfatase-A, causing sulfatide accumulation in (among others) nervous tissue.Based upon a review of the literature several subtypes of MLD are mentioned. Both diagnostic aspects and therapeutic possibilities are critically discussed. It is argued that in cases of psychiatric complaints which do not easily fit in the diagnostic framework of the DSM-III-R in adolescence, the existence of neuropsychiatric diseases should be evaluated.
Measuring sleep (dys)function by polysomnography
Authors: van Sweden B. , Wauquier A. , Arends J.B.A.M. , Declerck A.C. 
Published: July 2016

SummaryA vigilance state is characterized by a particular activity state of the motorIautonomic and psychiclcognitive functional systems. S-W screening is possible through poly graphic monitoring of physiological variables and signals. Quantification of these signals introduces a set of parameters allowing the characterisation of the sleep (dys)function. There is no consensus regarding the choice or definition of these parameters. A particular cluster is presented and their informative value with respect to clinical practice and research is discussed.
Behavioral neurology versus biological psychiatry: intellectual origins of their position within neuropsychiatry. Part II. Origins and influence of psychodynamic psychiatry; intellectual ties with biological psychiatry; behavioral neurology as revival of academic neuropsychiatry
Authors: van den Bergh W. 
Published: July 2016

SummaryIn this second part the origins of Freudian psychoanalysis in neuropsychiatry is discussed, but also its ties with the pre-scientific ‘Naturphilosophie’. The alienistic psychiatry was deeply influenced by psychodynamic theories.Biological psychiatry has more intellectual ties with psychodynamic psychiatry than with the old academic neuropsychiatry. Behavioral neurology is to be considered as a revival of the old academic neuropsychiatry.
Thyroid function and psychiatric disorders
Authors: Schoof P.J.M. , Timmerman L. , Colon E.J. , Leijnse-Ybema H.J. 
Published: July 2016

SummaryTo answer the question if it is possible for specific psychiatric illnesses to influence the thyroxine-concentration, a group of 376 patients admitted to a psychiatric hospital was studied retrospectively.13.5% had an elevated thyroxine-concentration and only 0.6% had a low concentration.Of the group of 145 men, 22.8% was found to have an elevated thyroxine-concentration. In the group of 196 women we found 6.6% to be elevated. A low thyroxine was found in only 0.5% of the women and 0.7% of the men.In the group with an elevated thyroxine the psychiatric diagnoses of schizophrenia and psychotic disorders NOS are more common (19.6% and 17.4% respectively) than in the group with a normal thyroxine (4.4% and 6.5% respectively).
The significance of β-carbolines in psychiatry
Authors: van Gelderen G.J. , Fekkes D. , Timmerman L. , Pepplinkhuizen L. 
Published: July 2016

SummaryIn this review the naturally occurring β-carbolines norharman and harman in human beings and mammals will be discussed. These β-carbolines have been recognized as aromatic alkaloids, which can be detected in very low concentrations in human plasma. Norharman and especially harman display moderate affinity to the benzodiazepine receptor. The biosynthesis of these compounds in vivo, the localization, the biological effects and the probable involvement of these compounds in the cause of psychopathologic states will be discussed. This with a special focus on alcoholism, heroin addiction, psychosis and anxiety disorders. In some of these clinical pictures the concentration of norharman is increased. Whether this is a causality or a matter of minor importance is still unknown.
Clinical evaluation of antidepressant drugs; Guidelines from authorities
Authors: Hesselink J.M. Keppel 
Published: July 2016

SummaryFood and Drug Administration, World Health Organisation and Committee on Proprietary Medicinal Products have published guidelines with recommendations how to conduct clinical trials. The guidelines for the clinical evaluation of antidepressant drugs contain a great variety of recommendations how to design phase I, phase II and phase III trials. Especially the pharmaceutical industry will follow these guidelines as much as possible to make the chances to register a new chemical entity as optimal as possible. While FDA and CPMP guidelines are primarily meant to be read by representatives from the pharmaceutical industries, the WHO guidelines give mainly information for clinicians. For the psychiatrist with interest in clinical research on antidepressants it is mandatory to know about the existence of these different guidelines. Fundamental differences between the guidelines do not exist; the methodological and ethical problems concerning placebo-use and relapse-recurrence problems are especially emphasized in the CPMP-guidelines.
Psychiatric symptoms and age dependency
Authors: Oosterwijk J.A.C. , Colon E.J. 
Published: July 2016

SummaryThe growing populations of the elderly is frequently regarded as a homogeneous entity. In this retrospective study 140 patients above 60 years, first admitted to a psychiatric hospital, were screened for individual psychiatric symptoms. This was done according to the D.S.M.-III-R criteria and with the european ADMP-IV scoring system.As expected dementia and related disorders are characteristic of the “older” categories, depressieve disorders were seen more frequently in the “younger” categories. Screening the elderly for psychiatric symptoms also shows differentiation within the group of the older patients.Symptoms related to dementia increase in frequency, also increasing are e.g. visual hallucinations. A decrease was found for hypochondriasis and phobia. So, the group patients above 60 years is clearly heterogeneous.
Psychoffarmacologica IV
Authors: Korf J. 
Published: July 2016

Deze aflevering gaat over een probleem van naamgeving. Door de recente trends op het gebied van de indicatiestelling van psychofarmaca worden we meer en meer in de war gebracht. Uit het verloop van dit verhaal zult u wel zien waarom en de vraag is of u de redactie van advies wilt en kunt dienen.In de meeste farmacologische textboeken worden de psychofarmaca ingedeeld naar de klinische werking, zoais u weet, en drie hoofdgroepen worden onder-scheiden: de psychoanaleptica, de psycholeptica en de psychodysleptica. Hier zullen we ons beperken tot de eerste twee groepen. Tot de belangrijkste typen farmaca van de eerste groep worden de antidepressiva en soms de lithiumzouten gerekend en tot de tweede groep behoren de ataractica (zoals de ben-zodiazepinen) en de antipsychotica. Hoe verhoudt zieh zo'n indeling ten opzichte van andere farmaco-therapeutische indelingen in de geneeskunde: worden eiders farmaca gerubrieeerd volgens de klinische indicaties of volgens de primaire aangrijpingspunten c.q. chemische karakteristie-ken? Soms volgt de indeling het werkingsprineipe, dan weer het ziektebeeld of symptoom, waarbij het middel het meest wordt toegepast.
Dysregulation of ion fluxes in bipolar affective disorder
Authors: Grunze H.C.R. , Langosch J. , Normann C. , Rujescu D. , Amann B. , Waiden J. 
Published: July 2016

ABSTRACTBipolar disorder has attracted numerous research from different neurobiological angles. This review will summarize selected findings focusing on the role of disturbed transmem-braneous ion fluxes. Several mood stabilizers exhibit a distinct profile including effects on sodium, calcium and potassium conductance. In summary, some decisive mechanisms of action as calcium antagonism and modulation of potassium currents may play a crucial role in the success of any given mood stabilizer in bipolar disorder.
Lithium and carbamazepine in bipolar disorder
Authors: Moleman P. , Hartong E.G.Th.M. , Hoogduin C.A.L. , Broekman T.G. , Nolen W.A. ,   The LitCar Group
Published: July 2016

AbstractLithium is considered first choice in the prevention of prospective episodes in patients with bipolar disorder. However, efficacy is not satisfactory in all patients and side effects sometimes prevent the use of lithium. It is argued that efficacy in clinical practice may be less impressive than anticipated from clinical trials, and alternative treatments are beinu advocated increasingly for that reason, such as the anticonvulsants, carbamazepine and valproate.
The efficacy of valproate, lamotrigine and gabapentin in bipolar disorder; review of double-blind controlled studies
Authors: Nolen W.A. , Kupka R.W. 
Published: July 2016

AbstractAims:The efficacy of the anticonvulsants valproate, lamotrigine and gabapentin in bipolar disorder is reviewed.Method: Using Medline ® and other sources of information, 12 double-blind controlled studies with either of these compounds were identified.Results:None of the compounds has been proven effective in the prophylaxis of bipolar disorder. Valproate has been found an effective drug in acute mania, while in continuation treatment after acute mania it proved to be save, i.e. not causing switches into depression. Lamotrigine is the only anticonvulsant with proven efficacy in acute bipolar depression. So far gabapentin has not been found effective.Conclusion:For the prophylaxis of bipolar disorder, lithium is still the treatment of choice. Carbamazepine and valproate are good alternatives, especially for patients not responding to lithium or not tolerating it. Lamotrigine may be a good alternative in bipolar depression.