The paper presents the results of a study on tree regeneration of forest stands in the Černý důl Nature Reserve, which is situated in the Orlické hory Mountains Protected Landscape area in the Czech Republic. Research was conducted in a spruce-beech stand with an admixture of silver fir, sycamore maple and rowan on two comparative permanent research plots (PRPs) (PRP 1—fenced enclosure and PRP ...

A laccase-type polyphenol oxidase is excreted by sycamore cells (Acer pseudoplatanus L.) cells. The enzyme has been purified by classical purification techniques. It is a blue copper protein of Mr 97 000, containing 45% carbohydrate and 0.24% copper. This protein consists of one single unit and the copper content corresponds to four copper atoms per protein molecule. The specific activity of th...

Unfavourable soil conditions frequently limit tree regeneration in mountain forests on calcareous bedrock. Rocky, shallow organic soils on dolomite pose a particular problem for tree regeneration due to commonly restricted water and nutrient supplies. Moreover, an often dense layer of understorey vegetation competes for the limited resources available. Hence, an array of interacting factors imp...

A study was performed to examine the changes in density of stacked roundwood, chips, and chunks as affected by various compaction treatments. Density of stacked roundwood bolts was tested for the effect of stacking orientation, binding of the stack ends, and species. Stacked bolt wood occupied less than 50 percent of the total rack space for all species, giving final dry bulk densities, based o...

Random quantum sampling, a task to sample bit-strings from random circuit, is considered one of suitable benchmark tasks demonstrate the outperformance computers even with noisy qubits. Recently, sampling was performed on Sycamore processor 53 qubits [Nature 574, 505 (2019)] and Zuchongzhi 56 [Phys. Rev. Lett. 127, 180501 (2021)]. Here, we analyze compare statistical properties outputs by Zucho...

Inosine diphosphatase (IDPase) isoforms associated with Golgi membranes were studied in sycamore cell culture. These enzyme isoforms were solubilized with Triton X-100 and purified by chromatography using DEAE-Toyopearl and SOURCES columns. The isoforms were separated into two distinguishable fractions (peak I and 2) by SOURCE S column c.hromatography. Furthermore the peak l contained at least ...

MARS: THE WESTERN DESERT OF EGYPT. C. L. Dinwiddie, S. K. Sandberg, R. N. McGinnis, and R. E. Grimm, Department of Earth, Material, and Planetary Sciences, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238 ([email protected]), 116 Sycamore St. NE, No.6, Albuquerque, NM 87106, Department of Space Studies, Southwest Research Institute, 1050 Walnut St., No.400, Boulder CO 80...

RATIONALE The role of the immune response to caterpillar exposure is not well described. This case study is the first to report a patient who presented with an allergic reaction after exposure to the larvae of the sycamore tussock moth, Halysidota harrisii Walsh, 1864. METHODS Blood was collected from an allergic asthmatic adult (m/42 y/o) at 2 hrs - 2 wks after contact urticaria with associa...