This paper reports a study of algorithm development and testing for soil moisture retrieval for bare fields using L-band SAR imagery. First-order surface scattering models predict that the co-polarization ratio is sensitive to soil moisture but not to surface roughness. Our previous study indicated that the measurement of (Jvv / (Jhh at L-band is proportional to soil moisture. In this study, th...

The properties of a repellent for migrating salmon present in mammalian skin are discussed. l-Serine which is present in the washings of human skin has been shown to have repellent activity at extremely high dilution.

background: fleas are important vectors of human and animal disease, and control measures for protection against their bites and flea-borne diseases are necessary. methods : the essential oils (eos) of four native medicinal plants, ziziphora tenuiore , myrtus communis , achillea wilhelmsii and mentha piperita were isolated by hydrodistillation technique and analyzed by gc-mc. the repellent acti...

The varied diet of European starlings (Sturnus vulgaris L.) can present challenges when working with starlings in experimental testing and holding situations and should be taken into account when testing repellents applied to food. Our purpose was to evaluate an anthraquinone-based repellent (Arkion Life Sciences, New Castle, DE, USA; active ingredient 50% 9,10-anthraquinone; hereafter anthraqu...

Application strategies for avian repellents are needed to maintain efficacious repellent concentrations throughout the period of needed crop protection. We investigated the repellency of an ultraviolet (UV) feeding cue in the absence of postingestive consequences, the combination of the UV feeding cue and an UV-absorbent, postingestive repellent (i.e., a repellent that causes negative postinges...

Hydrophobization lessens the water absorption by facade materials and is thus presumed to reduce moisture problems in internally insulated facades. However, do this it should retain repellency performance throughout aging. The aim of study evaluate impact aging on durability hydrophobic treatment bricks mortars. resulting coefficient, after 635 repeating artificial cycles alternating UV radiati...

Six essential oils: asteraceae oil, rutaceae oil, mentha piperta oil, carvacryl oil, citronella oil, and eucalyptus oil were tested for evaluation of their repellent effects against Aedes albopictus mosquitoes under laboratory conditions. Only citronella oil and eucalyptus oil were tested with human beings. There was considerable protection for mice. Carvacryl oil (7%) provided 100% protection ...

PURPOSE DEET and oxybenzone are two essential active ingredients in repellent and sunscreen products. The percutaneous permeation of the two compounds across human skin from five commercially available repellent and sunscreen products was investigated in vitro. METHODS Diffusion studies were carried out at 37 degrees C, using Franz-style diffusion cells and human epidermis (380 microm in thic...