Soci??lnÄ? znev??hodnÄ?n?­ rom??t?­ ?ž??ci p??edstavuj?­ jednu z nejv?­ce zraniteln??ch skupin ve vzdÄ?l??v??n?­. Od 90. let 20. stolet?­ je v??znamn??m n??strojem podpory vzdÄ?l??v??n?­ tÄ?chto ?ž??k?? profese asistent?? pedagoga (AP). Ä?l??nek prezentuje v??sledky studie zamÄ???en?Š na distančn?­ romsk??ch bÄ?hem uzav??en?­ ??kol v dobÄ? pandemie Covid-19 roce 2020. V??zkum byl zalo?žen semi...

So far, trees are defined formally as “tree domains” (TDom ⊆ P(L(N))). Informally, we know that graphs can model some trees. To reason about properties of trees, we define the following functions: sub(T , i) ∈ TDom×N⇀ TDom := {l | (i :: l) ∈ T} sub(T ,p) ∈ TDom×L(N) ⇀ TDom := {l | (p@l) ∈ T} Sub(T) ∈ TDom→ P(TDom) := {sub(T ,p) | p ∈ L(N)} These functions compute the n-th direct subtree, the su...

Crosslinkable hole transport materials (HTMs) with high triplet energies would have a balance of carrier injection into the emitting material layer, suppressing exciton quenching and resulting in high-performance solution-processed organic light-emitting diode (OLED) devices. Two novel crosslinkable HTMs different central units, N2, N8-di-p-tolyl-N2,N8-bis(4-vinylphenyl)dibenzo[b,d]thiophene-2,...

We consider the higher order Schrödinger operator H=(−Δ)m+V(x) in n dimensions with real-valued potential V when n>4m−1, m∈N. show that for any 2nn−4m+13 2nn−3<p≤∞ insufficiently differentiable...

a l t h o u g h m o s t c o m p a n i e s s p e n d l e s s o n p r o d u c t d e s i g n, e x p e r i e n c e s h o w s t h a t, t h e s e c o m p a n i e s h a v e t o p a y h i g h e r c o s t s d u e t o p r o d u c t i o n p r o b l e m s o r l o s s o f m a r k e t. l i t e r a t u r e s t u d i e s s h o w t h a t t h e d e s i g n f o r s i x s i g m a i s a p o w e r f u l a p p r o a ...

memory formation is the most important aspect of a vaccine which can guarantee long-lasting immunity and protection. the main aim of the present study was to evaluate the memory immune responses after immunization with a mini vaccine. mice were immunized with human immunodeficiency virus-1 p24-nef fusion peptide and then cellular and humoral immune responses were evaluated. in order to determin...

1 Useful Linear Algebra Let v = (v1, v2, . . . , vn) be a non-zero n-dimensional row vector and P an n× n matrix. • We say v is an eigenvector of P with corresponding eigenvalue λ iff vP = λv. • The L1-norm of v (denoted ‖v‖1) is ∑n i=1 vi. • The L2-norm of v (denoted ‖v‖2) is √∑n i=1 v 2 i . • The inner product of two vectors v and w (denoted v ·w) is ∑n i=1 viwi. • We say vectors v,v, . . .v ...

Let G = (V,E) be a graph of order n. A distance magic labeling of G is a bijection l : V → {1, 2, . . . , n} for which there exists a positive integer k such that ∑ x∈N(v) l(x) = k for all v ∈ V , where N(v) is the open neighborhood of v. In this paper we deal with circulant graphs C(1, p). The circulant graph Cn(1, p) is the graph on the vertex set V = {x0, x1, . . . , xn−1} with edges (xi, xi...