Research on the application of 700 MHz frequency band in 5G network optimization by Yejiang ZHANG, Lei SUN, Yiyan YIN, Xiaokang YANG, Jian HU

“…The 700 MHz frequency band has the advantages of low frequency, strong diffraction ability, and good coverage effect.China Mobile and China Radio and Television had made it clear that they would jointly build and share 5G networks based on 700 MHz frequency band resources.Firstly, the coverage advantages of 700 MHz frequency band were analyzed theoretically, and then the pilot projects such as 700 MHz 5G station continuous road coverage test, residential building coverage performance test and fixed-point capacity performance test provided data support for the subsequent 700 MHz 5G network construction and optimization.It could release the value of 700 MHz gold spectrum to the greatest extent and continuously improve the quality of 5G wireless network from the aspects of actively avoiding 700 MHz radio and television frequency interference, giving full play to the advantages of high and low frequency networking schemes, and actively exploring multi band collaborative optimization strategies.…”
Get full text

Mineração em Geossistemas Ferruginosos e Questões de Geoética: o Caso do Rompimento da Barragem de Córrego do Feijão, Minas Gerais – Brasil by Úrsula de Azevedo Ruchkys, Paulo de Tarso Amorim Castro, Marcos Paulo Souza Miranda

“…In the Quadrilátero Ferrífero region are located the main regional iron and gold mines. In the last three years, two major crimes occurred due to the rupture of iron mine tailings dams: Fundão (2015) and Córrego do Feijão (2019). …”
Get full text

Phase equilibria in the ternary Ag-Au-Ga system: Isothermal sections at 250°C and 450°C by Jendrzejczyk-Handzlik D.

“…Moreover, the ternary systems based on gold and silver have found applications in the dental industry. …”
Get full text

Die vergleichenden linguistischen Untersuchungen im Bereich der Sportsprache – Methoden und Tendenzen by Jakub Dzidek

“…Due to the lack of inter- and interlingual comparative research, any opportunity to highlight it is more valuable than gold. Consequently, the next part of the paper will highlight the articles in the volume that present comparative inter- and intralingual research at different levels. …”
Get full text

The traces of roman metallurgy in Eastern Serbia by Petković Sofija

“…Three mining-metallurgical regions abounding in gold, silver, copper, iron and lead could be distinguished there: 1. the upper course of the Pek river, metalla Pincensia, 2. the area between Bor, Zlot, Crna Reka and Rgotina and 3. the area in the river basin of Beli Timok, two latter ones had been organized as territoria metallorum. …”
Get full text

How Can the Microbiologist Help in Diagnosing Neonatal Sepsis? by Michela Paolucci, Maria Paola Landini, Vittorio Sambri

“…Here, we discuss the advantages and limitation of the blood culture, the actual gold standard for sepsis diagnosis. In addition, we examine the utility of molecular techniques in the diagnosis and management of neonatal sepsis.…”
Get full text

Collaborative online international learning (COIL): an engaging strategy for narrowing learning distances between two continents by Cardoso Catarina, Duarte Clara C., Silva Erick J.R., Fardilha Margarida

“…Internationalization is a gold standard of higher education institutions ensuring students’ contact with different environments, including different languages and different cultures. …”
Get full text

Greenhouse monitoring with wireless sensor network by Samira Torabi, Lu Fan

Get full text

Diagnosis of Hodgkin’s Lymphoma Using Endobronchial Ultrasound-Guided Transbronchial Needle by Abdullah Fahad Almsareer, Ahmed Zaid Alkhathlan, Doaa Ali AlGhamdi, Khalid Alokla

“…However, its use to diagnose lymphoma has been questioned, since the gold standard for diagnosing lymphomas is an excisional biopsy of involved lymph nodes. …”
Get full text

Goblet and Cross, Casket and Tombstone. Names and Things in the Hidden History of the Time of Troubles by Fjodor Uspenskij, Anna Litvina

“… In this work we discuss new attributions of valuable and commemorative objects from the mid-16th to the early decades of the 17th century, namely the tombstone of Aleksandra Saburova, the reliquary of Ivan Chvorostinin, the cross from the Gold Storeroom of the Vladimir-Suzdal’ Preserve Museum, the goblet from the sacristy of the Trinity Monastery of St. …”
Get full text

Quantum mechanical study of the influence of noble metals on the process of reduction of uranium oxides by A.S. Vorob'ev, A.Y. Galashev, Yu P. Zaikov

“…The noble metals that make up uranium oxides, to varying degrees, bring the reduced material to the stage of direct reduction, i.e. obtaining metallic uranium without the chemical reaction of binding oxygen with a light metal. Silver and gold initiate the process of direct reduction of uranium oxides more efficiently than platinum and palladium. …”
Get full text

Presumed Tubercular Multifocal Choroiditis by Masoud Soheilian, Pejvak Azadi

“…Further investigation by repeated tuberculin skin test and QuantiFERON-TB Gold test revealed tuberculosis as the probable cause of choroiditis. …”
Get full text

Assessment of the level of influence of oil exporting countries’ organizations on the world oil market by A. A. Laznik, T. S. Gordeeva

“…Oil is one of the significant energy resources for the majority of the world’s states, so many of them monitor and analyze the price of black gold. Currently, there are such organizations of oil exporting countries as OPEC and OPEC+, which for a long time continue to influence not only the world market of this energy resource but also the events taking place in the economic and political spheres of the world. …”
Get full text

Cardiac Output Assessed by Invasive and Minimally Invasive Techniques by Allison J. Lee, Jennifer Hochman Cohn, J. Sudharma Ranasinghe

“…Despite controversies, complications and inherent errors in measurement, pulmonary artery catheter (PAC) continuous and intermittent bolus techniques of CO measurement continue to be the gold standard. Newer techniques provide less invasive alternatives; however, currently available monitors are unable to provide central circulation pressures or true mixed venous saturations. …”
Get full text

Une figurine en terre cuite dorée d’époque romaine à Reims/Durocortorum by Loïc Androuin

“…Within this ensemble, a Venus under aedicula presents a partial gold leaf coating. The study of its iconography reveals it to be a novel decorative feature, representative of a new series within this preexisting iconographic theme. …”
Get full text

Ovarian Mature Cystic Teratoma: Challenges of Surgical Management by Abha Sinha, Ayman A. A. Ewies

“…The laparoscopic approach is generally considered to be the gold standard for the management. Oophorectomy should be the standard operation except in younger women with a single small cyst. …”
Get full text

Isolated Neurosarcoidosis Presenting as Chronic Progressive Pachymeningitis by Joshua Abata, Danielle Bazer, Nicholas Koroneos, Olga Syritsyna

“…The clinical presentation of isolated neurosarcoidosis can be highly variable, and diagnosis is particularly challenging, the gold standard being tissue biopsy. We describe a patient with a history of atypical parkinsonian syndrome and chronic right frontal lobe infarct who developed weakness, imbalance, and gait disequilibrium in 2008, with magnetic resonance imaging at that time showing leptomeningeal and nodular enhancements in the bilateral frontal and parietal lobes. …”
Get full text

Underdiagnosis of Chronic Obstructive Pulmonary Disease: A Rationale for Spirometry as a Screening Tool by R Andrew McIvor, Donald P Tashkin

“…Despite the fact that spirometry is the gold standard for the diagnosis and assessment of COPD, mass screening using this tool remains controversial. …”
Get full text

Del pueblo elegido y el maná escondido. La minera en San Juan (Argentina) by Mirta Alejandra Antonelli

“…Este artículo aborda el desastre ambiental provocado en la mina Veladero, que explota la canadiense Barrick Gold, como implosión del núcleo duro del modelo de la megaminería metalífera en Argentina, que ha tenido como «religión y culto» a la cordillerana provincia de San Juan. …”
Get full text

Exocrine Pancreatic Function Tests: A Review by Yuyuan Li, Stephen G. Chiverton, Richard H. Hunt

“…Direct intubation PFTs, using secretin/cholecystokinin or secretin/caerulein as the stimulants, continue to the the 'gold standard', although they are invasive, expensive and time consuming. …”
Get full text