using monthly test day records the genetic parameters of iranian holstein cattle in first lactation were studied. data of 277400 test-day milk records from 65320 cows and 2210 sires were analyzed by an animal random regression model using restricted maximum likelihood methodology. the model included herd-test-date, interaction between year-season of calving, days in milk (linear and quadratic) ...

For each integer [Formula: see text], we define a category whose objects are discriminant algebra functors in rank namely, choices of how to attach functorially rank-[Formula: text] quadratic with the same discriminant. We show that defined by Loos, Rost, and present authors all isomorphic this category, prove furthermore ranks unique up isomorphism.

This study presents an optimal framework for the operation of integrated energy systems using demand response programs. The main goal of integrated energy systems is to optimally supply various demands using different energy carriers such as electricity, heating, and cooling. Considering the power market price, this work investigates the effects of multiple energy storage devices and demand res...

Using monthly test day records the genetic parameters of Iranian Holstein cattle in first lactation were studied. Data of 277400 test-day milk records from 65320 cows and 2210 sires were analyzed by an animal random regression model using restricted maximum likelihood methodology. The model included herd-test-date, interaction between year-season of calving, days in milk (linear and quadratic) ...

objectives the main aim of this study was to evaluate the usefulness of applying extracorporeal liver support techniques to treat this group of patients. patients and methods the data from 23 hospital admissions of 21 patients with ald who were admitted to the department of anesthesiology and intensive therapy (a⁢) at the dr wł. biegański regional specialist hospital in łódź between march 20...

It is well-known since Gauss that infinitely many quadratic fields have even class number. In fact, if K is a quadratic field of discriminant D, having r prime divisors, then the class number hK is divisible by 2 if D < 0 and by 2 if D > 0. See [4, Theorem 3.8.8] for a more precise statement. In 1922 Nagell [17, Satz VI] obtained the following remarkable result: given a positive integer l, ther...

Analysing the cubic sectors of a real polynomial degree n, modification Newton’s Rule signs is proposed with which stricter upper bound on number roots can be found. A new necessary condition for reality also proposed. Relationship between quadratic elements established through its and those derivatives. Some aspects discriminants are discussed — relationship polynomials, their derivatives, ele...

We construct lattices with quadratic structure over the integers in quadratic number fields having the property that the rank of the quadratic structure is constant and equal to the rank of the lattice in all reductions modulo maximal ideals. We characterize the case in which such lattices are free. The construction gives a representative of the genus of such lattices as an orthogonal sum of “s...

data utilized in this study were 6800 records of lambs’ life longevity, and survival rate from 263 sires and 1839 dams collected from 1989 through 2009, from the lori-bakhtiari flock at shooli station in shahrekord. the data were analyzed, using linear and hazard ratio models along with weibul function. these models included such non genetic factors as year and month of birth, sex of lamb, type...