background: sun protection materials have been one of the major concerns in pharmaceutical industry since almost one century ago. various materials have been found to have such an effect but there are still many unknown substances that have not been discovered. objective: to introduce a novel mineral-based sun lotion with considerable uv absorption properties compared to commercially available ...

Purpose: To evaluate the phytochemical profile as well as in vitro antioxidant, iron-chelating, and antiglucosidase activities of Typha domingensis Pers. (Typhaceae) Methods: Total polyphenols, flavonoids, hydroxycinnamic acids, and pro-anthocyanidins in the respective aqueous extracts of male and female flowers, and fruit of T. domingensis were determined by established procedures. Antioxidant...

BACKGROUND Magnolia grandiflora L. flower is wildly used in Asian as a traditional herbal medication. The purpose of the study was to investigate the antimelanogenic and antioxidant properties of Magnolia grandiflora L. flower extract. In the study, the inhibitory effects of M. grandiflora L. flower extract on mushroom tyrosinase, B16F10 intracellular tyrosinase activity and melanin content wer...

Flower classification is a useful way for grouping a flower in certain class using specific features. This research propose a new method of flower classification system using combination of color and texture features. The first phase is getting the crown of the flower, which is localized from a flower image by using pillbox filtering and OTSU’s thresholding. In the next phase, color and texture...

In order to elucidate the correlation of temperature and the effect of gibberellin spray on the development of flower-buds in Cryptomeria japonica cultivar Kumotooshi, experiments were done in controlled environmental condition during 1970-1971. The following points were observed: 1. The male flower-buds were formed maximum in the temperature range of 25°C-30°C and their formation decreased wit...

An edge irregular total k-labeling φ : V ∪ E → {1, 2, . . . , k} of a graph G = (V,E) is a labeling of vertices and edges of G in such a way that for any different edges uv and u′v′ their weights φ(u) +φ(uv) +φ(v) and φ(u′) +φ(u′v′) +φ(v′) are distinct. The total edge irregularity strength, tes(G), is defined as the minimum k for which G has an edge irregular total k-labeling. In this paper, we...

Given a vertex-colored graph, we say path is rainbow vertex if all its internal vertices have distinct colors. The graph vertex-connected there between every pair of vertices. In the Rainbow Vertex Coloring (RVC) problem want to decide whether given can be colored with at most k colors so that becomes vertex-connected. This known NP -complete even in very restricted scenarios, and few efficient...

Flower development and senescence was studied in Narcissus tazetta ‘Kashmir Local’. Flower development was divided into six stages (I-VI), from the tight bud stage to the senescent stage. Flower fresh and dry weight increased as the flowers progressed from bud to bloom and then declined during senescence. Membrane permeability of tepal tissues increased as the flower progressed through various ...

Newer, selective insecticides with few negative impacts on natural enemies and competitor species are needed for effective, sustainable management of the western flower thrips, Frankliniella occidentalis (Pergande). The purpose of this study was to evaluate the impacts on natural enemies and competitor thrips species of insecticides used for control of western flower thrips in fruiting vegetabl...

Rafflesia is a biologically enigmatic species that is very rare in occurrence and possesses an extraordinary morphology. This parasitic plant produces a gigantic flower up to one metre in diameter with no leaves, stem or roots. However, little is known about the floral biology of this species especially at the molecular level. In an effort to address this issue, we have generated and characteri...