Over the last several decades, positivist-behaviorist apyroaches to social and educational r e s e a r c ' ~ ~ n the decline, whereas int~rpretivist ap, pd:oaches have been on the rise. As a result of this "interpretive t___urn__z" the old debate betwee_frrpositivism and interpreti~ism (and central to the qua---~ntitative-qualitative debate) has diminished in intensitu only to be replacedby a n...

for any lacunary sequence $theta = (k_{r})$, we define the concepts of $s_{theta}-$limit point and $s_{theta}-$cluster point of a sequence of fuzzy numbers $x = (x_{k})$. we introduce the new sets  $lambda^{f}_{s_{theta}}(x)$, $gamma^{f}_{s_{theta}}(x)$ and prove some inclusion relaions between these and the sets $lambda^{f}_{s}(x)$, $gamma^{f}_{s}(x)$ introduced in ~cite{ayt:slpsfn} by aytar [...

Inverse Compton (IC) scattering by relativis-tic electrons produces a major component of the diffuse emission from the Galaxy. The photon fields involved are the cosmic microwave background and the interstel-lar radiation field (ISRF) from stars and dust. We expect which could be detectable by instruments such as GLAST. Even individual nearby luminous stars could be detectable assuming just the...

Figure 1 shows the equivalent circuit of a transimpedance amplifier and a high-impedance source. IS represents the output current of the source. CS is the sum of the source’s output capacitance and the op amp’s input capacitance. RF, with the help of the op amp, converts IS to a voltage. At low frequencies, the op amp’s inverting input is forced to be at ground potential and IS must flow throug...

Aims. Excitation of far-infrared and submillimetric molecular lines may originate from nonreactive collisions, chemical formation, or far infrared, near-infrared, and optical fluorescences. As a template, we investigate the impact of each of these processes on the excitation of the methylidyne cation CH and on the intensities of its rotational transitions recently detected in emission in dense ...

background:   human fascioliasis is an important health problem in the province of gilan, at the caspian sea, iran. there is the overlapping of both fasciolid species, fasciola hepatica and f. gigantica . recent studies on both domestic animal and lym­naeid infection furnished evidence suggesting that f. gigantica and radix gedrosiana may be the main fasciolid and lym­naeid involved in the dise...

Context. Hydrides are simple compounds containing one or a few hydrogen atoms bonded to a heavier atom. They are fundamental precursor molecules in cosmic chemistry and many hydride ions have become observable in high quality for the first time thanks to the Herschel Space Observatory. Ionized hydrides such as CH and OH (and also HCO), which affect the chemistry of molecules such as water, prov...

Context. Hydrides are simple compounds containing one or a few hydrogen atoms bonded to a heavier atom. They are fundamental precursor molecules in cosmic chemistry and many hydride ions have become observable in high quality for the first time thanks to the Herschel Space Observatory. Ionized hydrides, such as CH and OH, and also HCO that affect the chemistry of molecules such as water, provid...