for two given graphs g1 and g2, the ramseynumber r(g1,g2) is the smallest integer n such that for anygraph g of order n, either $g$ contains g1 or the complementof g contains g2. let tn denote a tree of order n andwm a wheel of order m+1. to the best of our knowledge, only r(tn,wm) with small wheels are known.in this paper, we show that r(tn,wm)=3n-2 for odd m with n>756m^{10}.

We have isolated a cDNA encoding mouse tenascin-X (TN-X), a new member of the family of tenascin genes. The TN-X gene lies in the major histocompatibility complex (MHC) class III region, as it is the case for its human counterpart. On Northern blots we detected a TN-X mRNA of approximately 13 kb in most tissues analyzed, whereas in various mouse cell lines mRNAs of approximately 11 and 13 kb we...

هدف: هدف از این پژوهش بررسی واسطه‌­ای راهبردهای سازش نایافته تنظیم شناختی هیجان در رابطه باورهای فراشناختی با اضطراب امتحان بود. روش: روش حاضر توصیفی و نوع همبستگی جامعه آماری را کلیه دانش‌­آموزان پسر دوره دوم متوسطه شهر تهران سال تحصیلی 1401-1400 تشکیل دادند که تعداد 456 نفر به نمونه‏‌گیری دسترس انتخاب شرکت کردند. ابزارها شامل سیاهه ابوالقاسمی همکاران (1375)، پرسشنامه باکو دیگران (2009)، فرم ک...

The interior of plants contains microorganisms (referred to as endophytes) that are distinct from those present at the root surface or in the surrounding soil. Herbaspirillum seropedicae strain SmR1, belonging to the betaproteobacteria, is an endophyte that colonizes crops, including rice, maize, sugarcane, and sorghum. Different approaches have revealed genes and pathways regulated during the ...

For n, k ∈ Z≥0, let Tn(k) be the alternating sums of the n-th powers of positive integers up to k − 1: Tn(k) = ∑ k−1 l=0 (−1)l. Following an idea due to Euler, we give the below formula for Tn(k): Tn(k) = (−1) 2 n−1 ∑ l=0 (n l ) Elk n−l + En 2 (

Let r = SL(n, Il) or any subgroup of finite index. Then the action of r on Tn by automorphisms is infinitesimally rigid for n ;::: 7, i.e., the cohomology H I (r, Vec(Tn)) = 0 , where Vec(Tn) denotes the module of COO vector fields on Tn .

Trigeminal neuralgia (TN) is characterized by recurrent paroxysms of unilateral facial pain that typically is severe, lancinating, and activated with cutaneous stimulation. There are two types of TN, classical TN and atypical TN. The pain nature of classical TN are the same as those described above, whereas atypical TN is characterized by constant, burning pain. We describe the case of a 49-yea...

introduction: the aim of the present study was to evaluate the expression of fibronectin (fn) and tenascin (tn) after direct pulp capping (dpc) in dogs’ teeth with either mineral trioxide aggregate (mta), propolis or platelet-rich plasma (prp), by means of immunohistochemistry. methods and materials: a total of 48 sound molars and premolars with mature apices from four dogs, were included. the ...

In this paper, we use a simple method to derive di¤erent recurrence relations on the Tribonacci numbers and their sums. By using the companion matrices and generating matrices, we get more identities on the Tribonacci numbers and their sums, which are more general than that given in literature [E. Kilic, Tribonacci Sequences with Certain Indices and Their Sum, Ars Combinatoria 86 (2008), 13-22....