Red pine leafs were applied for the green method preparation of MgO nano-plates. The MgO nano-plates were used for the one-pot synthesis of dihydropyrano [3,2-c] chromene derivatives. This procedure is very simple and affords excellent yields. MgO nanoplates were synthesized via a simple precipitation method with the using of an extract solution of red pine leaves. The XRD pattern shows a cubic...

Two sets of opaque water-based acrylic coatings were prepared with IR-reflective pigments and conventional pigments. The objective of this work was to determine the efficiency of IR-reflective pigments in limiting the heat buildup of opaque coating formulations. Experiments performed on PVC substrates revealed that IR-reflective pigments significantly decreased the temperature increase above ro...

The strength and outcome of interspecific interactions often vary across the landscape because of differences in community context. We investigated how the presence or absence of pine squirrels (Tamiasciurus spp.) influences the ecology and (co)evolution of seeddispersal mutualisms between Clark’s Nutcrackers (Nucifraga columbiana) and limber (Pinus flexilis) and whitebark (P. albicaulis) pines...

Ann. Ital. Chir. Published online: 29 Dicembre 2011 1 Pervenuto in Redazione Settebbre 2011 Accettato per la pubblicazione Ottobre 2011 Correspondence to: Dr. Giovanni Conzo, Dipartimento di Scienze Anestesiologiche, Chirurgiche e dell’Emergenza VII Divisione di Chirurgia Generale Facoltà di Medicina e Chirurgia Seconda Università degli Studi di Napoli, Via Generale G. Orsini 42, 80132 Napoli (...

Resumo: Este artigo apresenta um método completo para a detecção de defeitos em tábuas de madeira de Pinus através de técnicas de Visão Computacional. As imagens dos lados da tábua de madeira são adquiridas com câmeras tipo line scan e processadas para extração de características baseadas na informação cor e em propriedades de textura: suavidade, aspereza e regularidade. Um subconjunto destas c...

Cain, M.D., 1991. Hardwoods on pine sites: competition or antagonistic symbiosis. For. Ecol. Manage., 44: 147-160. Early development of natural loblolly (Pinus taeda L.) and shortleaf pine (Pinus echinata Mill.) regeneration was monitored in two research studies and two research demonstrations between 1980 and I989 in southern Arkansas. Site preparation and hardwood control incorporated the use...

We assessed awareness and perceptions of forest landowners and managers in the southeastern United States regarding their stand health especially under the context of the southern pine decline (SPD) phenomenon. E-mail and paper surveys were sent to 4,670 forest landowners and managers in Florida, Georgia, and South Carolina with an overall response rate of 28%. About half (51%) of respondents r...

Pine regeneration following wildland fire continues to be a serious problem across the western and southeastern U.S. Frequency of large wildfires has increased over the last several decades and restoration of these burned areas is a major problem confronting land managers. Prescribed fires are used primarily to reduce heavy fuel loads and secondarily to reduce competition or prepare sites for n...