introduction during the process photodynamic therapy (pdt), bleaching of photosensitizer induced by irradiation and generation of reactive oxygen species (ros) can provide some information concerning the efficiency of treatment. since gold nanoparticles (gnps) have been highlighted as efficient drug delivery systems, in this study, by utilizing gnps conjugated with 5 aminolevulinic acid (5-ala-...

a new proton transfer compound, formulated as (hamp-6-pic)(hpyzd) ∙h2o (1), has been synthesized from the reaction of pyrazine-2,3-dicarboxylic acid (h2pyzd)  and 2-amino-6-methyl pyridine (amp-6-pic), in 1:1 molar ratio. extensive o−h×××o, n−h×××n and o−h×××o hydrogen bonds involving (hamp-6-pic)+ cation, (hpyzd)- anion and co-crystal water molecule٫ static electronic٫ and π…π stacking interac...

japan is a region of active plate tectonics, well known for its japanese trench a geological feature evolving as a result of north pacific (np) oceanic plate pushing and sub-ducting underneath the north american (na) plate. multiple plate tectonics have been continuously recorded in the region since 1979 by the network of gps stations called geonet. the network operating and monitoring more tha...

g l o b a l c o m p e t i t i v e n e s s h a s r e c e n t l y b e c o m e a b i g c h a l l e n g e f o r m a n y c o m p a n i e s a r o u n d t h e w o r l d, w h i c h a r e f o r c e d t o s e e k l o w e r c o s t s a n d h i g h e r q u a l i t y f o r w h a t t h e y p r o d u c e. t h e p r o s p e r i t y o f m a n u f a c t u r i n g f i r m s d e p e n d s o n s e l e c t i n g a n...

A well-known theorem of Korovkin asserts that if $$\{T_k\}$$ is a sequence positive linear transformations on C[a, b] such $$T_k(h)\rightarrow h$$ (in the sup-norm b]) for all $$h\in \{1,\phi ,\phi ^2\}$$ , where $$\phi (t)=t$$ [a, b], then C[a,b]$$ . In particular, T transformation $$T(h)=h$$ identity transformation. this paper, we present some analogs these results over Euclidean Jordan algeb...

Trong bài báo này, ?nh h??ng c?a ?i?u ki?n th?y nhi?t và nung ??n c?u trúc nano-hydroxyapatite ???c t?ng h?p t? x??ng cá ng? b?ng ph??ng pháp ?ã nghiên c?u. Các tính ch?t lý hóa s?n ph?m xác ??nh các phân tích hi?n ??i nh? nhi?u x? tia X (XRD), quang ph? h?ng ngo?i bi?n ??i Fourier (FTIR), hi?n vi ?i?n t? quét phát tr??ng (FE-SEM), truy?n qua (TEM) hu?nh (XRF). K?t qu? XRD cho th?y ?? k?t tinh ...

N??c r? rác là n??c th?i t? bãi chôn l?p ch?a các thành ph?n ô nhi?m ? n?ng ?? cao. Do ?ó, vi?c x? lý c?n m?t h? th?ng ph?c t?p bao g?m quá trình hóa h?c, lý, sinh h?c và nâng N?ng cao c?a amoniac trong ng?n c?n s? phát tri?n vi v?t nên lo?i b? amoni xu?ng th?p h?n, t?o ?i?u ki?n thu?n l?i cho ti?p theo. Trong nghiên c?u này, tháp tách khí ?? t?ng h?p ?ã ???c thi?t k? th? nghi?m. ?nh h??ng pH, ...

introduction: recently, due to the special characteristics of 166ho and chitosan, 166ho-chitosan complex was developed for treatment of tumors such as hepatocellular carcinoma. this complex has been lately prepared with high radiochemical purity in our lab. the preclinical studies of the complex however should be performed to evaluate the tracer concentration in target and normal tissues before...