The problem of finding large cliques in random graphs and its “planted" variant, where one wants to recover a clique of size ω log (n) added to an Erdős-Rényi graph G ∼ G(n, 2 ), have been intensely studied. Nevertheless, existing polynomial time algorithms can only recover planted cliques of size ω = Ω( √ n). By contrast, information theoretically, one can recover planted cliques so long as ω ...

In recent decades, the area and proportion of planted forests have increased; thus, understanding the responses of planted and natural forests to drought are crucial because it forms the basis for forest risk assessments and management strategies. In this study, we combined the moderate-resolution imaging spectroradiometer (MODIS) enhanced vegetation index (EVI), meteorological aridity indices,...

The number of transgenic cotton cultivars available for commercial production has increased greatly in recent years. Cotton producers now have multiple choices when choosing transgenic cotton cultivars. The choice of cultivar now dictates the insect and weed control programs that will or can be used. It is estimated that, in 2003, at least 77% of Arkansas’ cotton acreage was planted to a stacke...

Hawaii has no native pines, but many species have been introduced as ornamental or potential timber trees. These species have been planted in environments that differ greatly from their natural habitat. This paper describes how the coordinated seasonal cycle of growth and flowering has been influenced by the climatic conditions these pines have encountered in Hawaii. Hawaii has no native pines,...

Two schools of thought exist regarding the planting of bare-root seedlings. One school favors the “pull-up” m e t h o d w h e r e t h e s e e d l i n g i s p u l l e d u p 3 t o 1 0 c m a f t e r p l a c i n g t h e r o o t s i n t h e p l a n t i n g h o l e . A l t h o u g h t h i s a c t i o n p u r p o r t e d l y s t r a i g h t e n s t h e taproot, d a t a a r e l a c k i n g t o s h o w ...

In this paper we describe the range of values that can be taken by the fractional weak discrepancy of a poset subject to forbidden r+ s configurations, where r+s = 4. Generalizing previous work on weak discrepancy in [5, 12, 13], the notion of fractional weak discrepancy wdF (P ) of a poset P = (V,≺) was introduced in [7] as the minimum nonnegative k for which there exists a function f : V → R ...

Haloxylon ammodendron (C.A.Mey.) Bge. is crucially important for stabilizing sand dunes in the desert area of Junggar Basin and has thus been widely planted oasis–desert ecotone windbreak fixation purposes since 1980s. The spatial distribution structural characteristics plantations three different ages—planted 1983 (36a), 1997 (22a), 2004 (15a)—on southwestern edge Gurbantünggüt Desert were stu...

We devise statistical tests to detect the presence of an embedded ErdősRényi (ER) subgraph inside a random graph, which is also an ER graph. We make use of properties of the asymptotic distribution of eigenvectors of random graphs to detect the subgraph. This problem is related to the planted clique problem that is of considerable interest.