Results 111 to 120 of about 324,663 (309)

Fraud and Financial Markets: The 1997 Collapse of the Junior Mining Stocks [PDF]

The Vancouver Composite Index fell by over 25% in less than six weeks during spring 1997 as the junior mining sector collapsed. We argue that this market collapse was triggered by the failure of Bre-X Minerals when that company’s Indonesian claims ...
Richard C.K. Burdekin, William O. Brown, Jr.   +1 more
core  

Photoswitching Conduction in Framework Materials

Advanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez, Stefan Hecht, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +4 more
wiley   +1 more source

Albyn gold ore deposit in priamur province

Известия высших учебных заведений: Геология и разведка, 2015
The description of the geological structure and composition of Albyn gold ore deposit of Harginskyi ore and placer gold node of Amur province is shown.
A. E. Perestoronin, V. A. Stepanov
doaj   +1 more source

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

Advanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz, Jonas De Breuck, Sahar Salehi, Meike N. Leiske   +3 more
wiley   +1 more source

Genesis of the Zhilingtou gold deposit, Zhejiang Province, China: constraints from fluid inclusions and H–O–S–Pb isotope systematics

Frontiers in Earth Science
The Zhilingtou gold deposit in Zhejiang Province, China, is located in the Qin-Hang metallogenic belt and hosted within Paleoproterozoic Badu Group gneiss.
Hanlun Liu, Hanlun Liu, Xiaofei Yu, Shigang Duan, Yandong Sun, Yingchao Wang, Jingwen Mao   +6 more
doaj   +1 more source

Methodological Approach to Substantiation of Capital Investments of Gold Fields Based on Unit Costs

Записки Горного института, 2019
Issues of assessing capital expenditures for setting mineral deposits into operation are considered. Existing methods have a number of advantages and disadvantages, but they are determined separately for each type of fixed assets of the field.
A. Yu. Zaitsev
doaj   +1 more source

Geochemistry and origin of gold mineralization in the Kolar Schist Belt [PDF]

Geological, mineralogical, mineral-textural and geochemical data of the sulfide lodes in the belt indicate that the gold mineralization could be related to low temperature, low Eh and high pH rock-dominated geothermal systems set up in the submarine ...
Rajamani, V., Siddaiah, N. Siva
core   +1 more source

Эколого-геохимическая оценка территории золоторудного месторождения Вьюн по данным изучения депонирующих сред (Северо-Восточная Якутия) [PDF]

, 2018
Рассмотрены эколого-геохимические особенности почв и донных отложений территории золоторудного месторождения Вьюн. Установлено влияние рудной зоны месторождения на геохимические параметры депонирующих природных сред.Ecological and geochemical features of
Афанасьев, Евгений Сергеевич
core  

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

Advanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Expanding Chemical Space of Nucleic Acid Nanoparticles for Tunable Antiviral‐Like Immunomodulatory Responses and Potent Adjuvant Activity

Advanced Functional Materials, EarlyView.
We introduce a nucleic acid nanoparticle (NANP) platform designed to be rrecognized by the human innate immune system in a regulated manner. By changing chemical composition while maintaining constant architectural parameters, we identify key determinants of immunorecognition enabling the rational design of NANPs with tunable immune activation profiles
Martin Panigaj, Hannah S. Newton, Jian Wang, Laxmi Pandey, Yelixza I. Avilla, Phong Nguyen, Morgan Chandler, Justin Halman, Yasmine Radwan, Stephanie Smith, Elijah Edmondson, Simone Difilippantonio, Chelsea Sanders, Bao Tran, Yongmei Zhao, Shaojun Xie, Edward Cedrone, Barry W. Neun, Meni Wanunu, Nikolay V. Dokholyan, Marina A. Dobrovolskaia, Kirill A. Afonin   +21 more
wiley   +1 more source