Nacrtak The work was carried out in Caprarola (Viterbo, Central Italy), in an aged Quercus cerris L. coppice positioned in hill zones, with 45% average slope. Harvesting was conducted according to the shortwood system (SWS). Felling and processing were done by chainsaw, while the bunching was performed with three different systems: in Plot 1 with mules, in Plot 2 with a tractor-mounted winch, i...

The assessment of provenance of heparin is becoming a major concern for the pharmaceutical industry and its regulatory bodies. Batch-specific [carbon (δ(13) C), nitrogen (δ(15) N), oxygen (δ(18) O), sulfur (δ(34) S), and hydrogen (δD)] stable isotopic compositions of five different animal-derived heparins were performed. Measurements readily allowed their differentiation into groups and/or subg...

Biofuels are liquid sunlight. In effect, we use plants to convert raw solar energy into a liquid (ethanol or biodiesel) that can be used as an energy source for our transportation systems. The question this chapter asks is whether this conversion process is the best way to make use of solar energy. Photovoltaics clearly dominate plants in terms of technical conversion efficiency, with conversio...

abstract a field experiment was conducted at iranian plant protection research farm in karaj during 2009 to evaluate the effects of diffrent planting patterns, times of mechanical control and herbicides application on weeds density and biomass in sugar beet farms. the experimental design was split–split plot based on randomized complete block design (rcbd) with four replications. planting patte...

We show that hydrodynamic modeling coupled to the synthesis of the plasma emission, taking into account the response of a given instrument, provides very useful information for the interpretation of ar-ing coronal loops observed in the X-ray band. We show how the same model are would appear very diierent if observed with Yohkoh SXT and TRACE and how our approach can help in providing a very det...

account of the several works that came from Digby's pen and, if one might judge from his Private Memoirs, his over-active brain. But even in this involved field of authorship one fails to find a solution to the strange uncertainties and contradictions that made Digby, Digby. Even the "powder of sympathy" in all its implications affords no explanation. Nevertheless, Sir Kenelm could not well be ...

1. INTRODUCTION. It has become a truism, at least among statisticians, that while statistics is a mathematical science, it is not a subfield of mathematics. We even have apho-risms to express some ways in which our science differs from mathematics. George Box: " All models are wrong, but some are useful. " George Cobb: " In mathematics, context obscures structure. In data analysis, context prov...

A popular approach to significance testing proposes to decide whether the given hypothesized statistical model is likely to be true (or false). Statistical decision theory provides a basis for this approach by requiring every significance test to make a decision about the truth of the hypothesis/model under consideration. Unfortunately, many interesting and useful models are obviously false (th...

account of the several works that came from Digby's pen and, if one might judge from his Private Memoirs, his over-active brain. But even in this involved field of authorship one fails to find a solution to the strange uncertainties and contradictions that made Digby, Digby. Even the "powder of sympathy" in all its implications affords no explanation. Nevertheless, Sir Kenelm could not well be ...