نتایج جستجو برای: oc curve
تعداد نتایج: 139989 فیلتر نتایج به سال:
The sequestration in soil of organic carbon (SOC) derived from atmospheric carbon dioxide (CO2) by replacing arable crops with leys, has been measured over 70 years on a sandy loam soil. The experiment was designed initially to test the effect of leys on the yields of arable crops. A 3-year grazed grass with clover (grass + clover) ley in a 5-year rotation with arable crops increased percentage...
Development of the sugar beet cyst nematode, Heterodera schachtii, was studied in growth chambers at 20, 25, 29, 32 and 35 ± 1 oC on Beta vulgaris cv. Saccharifera. The optimum temperature for reproduction appeared to be 32 oC, at which the life cycle, from second-stage juvenile (J2) to J2, was completed in 16-19 days; at 35 oC, 20-21 days were required. Juveniles emerged from eggs within 29 da...
Let C be an isolated plane curve singularity. Zariski defined and studied equisingular deformations of C, see [12], [13], [14], and proved that this is the same as μ–constant deformations. Wahl [10] showed that the functor of equisingular deformations is smooth, say of dimension es(C). This therefore is also the dimension of the μ–constant stratum. In this paper we give a formula for es(C). In ...
While optical colonoscopy (OC) is still considered the gold standard and is necessary for performing polypectomies when required, virtual colonoscopy (VC) systems present certain advantages over the traditional OC, such as increased coverage of the colon wall and the ability to utilize computer-aided detection (CAD) techniques. In order to leverage the abilities provided by both OC and VC, a me...
Minerals stabilize organic carbon (OC) in sediments, thereby directly affecting global climate at multiple scales, but how they do it is far from understood. Here we show that manganese oxide (Mn oxide) in a water treatment works filter bed traps dissolved OC as coatings build up in layers around clean sand grains at 3%w/wC. Using spectroscopic and thermogravimetric methods, we identify two mai...
Background Genome-wide association studies (GWAS) have identified 94 common single-nucleotide polymorphisms (SNPs) associated with breast cancer (BC) risk and 18 associated with ovarian cancer (OC) risk. Several of these are also associated with risk of BC or OC for women who carry a pathogenic mutation in the high-risk BC and OC genes BRCA1 or BRCA2. The combined effects of these variants on B...
BACKGROUND/AIMS Elucidation of the molecular mechanisms underlying ovarian cancer (OC) cell invasion and migration may provide important evidence for developing efficient therapy. Recently, Matrix metalloproteinase (MMP) has been shown to be regulated by vascular endothelial growth factor family members, especially placental growth factor (PLGF), as a potential mechanism underlying cancer invas...
BACKGROUND Clinically, oral contraceptives (OC) can influence pain in both migraine headache and temporomandibular pain disorders. Estrogen as an ingredient of OC might be a responsible factor for these observations. We conducted the present study to test whether OC are able to alter the severity of headache attacks as well as the detection or pain thresholds over the course of the menstrual cy...
OBJECTIVE The present study aimed to determine if schizophrenic patients with OC-symptoms represent a subtype of schizophrenia and to evaluate the differences between schizophrenic patients with OC symptoms and OCD patients. METHODS The study included 20 patients diagnosed with OCD, 40 schizophrenic patients, and 20 schizophrenic patients with OC symptoms. While the distribution and the sever...
This study investigated whether Black students' social comfort with Whites, termed outgroup comfort (OC), predicted outcomes related to academics and mental health. Surveys administered to Black college students near the beginning and end of their first year showed OC measured in the fall predicted outcomes assessed in the spring, including contact with other races, academic concerns among men,...
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