this study evaluated direct drilling planters used for wheat cultivation in khorasan-e razavi province. a randomized complete block design with three replications was used. the treatments were direct drilling of wheat plants into wheat residue using the following direct planters: (1) sfoggia (13-25), (2) baldan (spd3000), (3) tondar (spd 2500), (4) semeato (shm 11/13). the parameters measured w...

objective: obsessive-compulsive disorder (ocd) is one of the greatest and debilitating disorders, which many of its patients do not respond to psychotherapy and pharmacotherapy. in this regard, paying attention to new treatments such as transcranial direct current stimulation (tdcs) is important. the purpose of the present research was to examine the effects of tdcs on the obsession-compulsion ...

b a ckground: a two year seroepidemiological study was designed to find out the seroprevalence and risk factors ofcanine visceral leishmaniasis (cvl) among stray and owned dogs in tehran and alborz provinces of iran. me t hods: blood samples of  602 dogs living in  11  counties of  tehran and  alborz  provinces were  taken by venipuncture in 2008–2010. after separation of blood sera, anti-leish...

the electrochemistry of banana tissues on a carbon paste electrode modified with multi-walled carbon nanotubes (mwcnts) is presented. cyclic voltammetry is applied to investigate the direct electrochemistry of banana tissues i.e. a source of polyphenol oxidase (ppo). a redox couple with an anodic and counterpart cathodic peak is obtained. the influence of various parameters such as ph, scan rat...

In this chapter we look at the strategic issue facing firms regarding whether or not to remanufacture their used products. We identify some direct costs of remanufacturing as well as some opportunity costs that should be included in a firm’s decision to remanufacture or support the secondary market of remanufactured products. We also explore how this decision may change under different competit...

The purpose of this paper is the study of direct limits in category of Krasner (m, n)-hyperrings. In this regards we introduce and study direct limit of a direct system in category (m, n)-hyperrings. Also, we consider fundamental relation , as the smallest equivalence relation on an (m, n)-hyperring R such that the quotient space is an (m, n)-ring, to introdu...

A central issue in contemporary epistemology is whether there is a species of (prima facie) justification that is immediate, direct, basic, or foundational. It is puzzling whether and how immediate justification could arise. This is perhaps the core issue that divides foundationalists from coherentists. An older conception of immediate justification is that some beliefs are capable of self-just...

The digital transformation leads to an enormous change in the customer-firm relationship. Recently launched firm-sponsored online customer networks enable customers to actively interact with the company and other customers in form of social engagement activities like asking and answering questions or receiving feedback. Despite the increasing importance of online customer networks, existing lit...