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Sending flocks of tiny satellites out past Earth orbit and solving the irrigation efficiency paradox

Small satellites—about the size of a briefcase—have been hitching rides on rockets to lower Earth orbit for decades. Now, because of their low cost and ease of launching, governments and private companies are looking to expand the range of these “sate-lites” deeper into space. Host Sarah Crespi talks with Deputy News Editor Eric Hand about the mods and missions in store for so-called CubeSats. And our newest podcast producer Meagan Cantwell interviews Quentin Grafton of Australian National University in Canberra and Brad Udall of Colorado State University in Fort Collins about something called the “irrigation efficiency paradox.” As freshwater supplies dry up around the world, policymakers and farmers have been quick to try to make up the difference by improving irrigation, a notorious water waster. It turns out that both human behavior and the difficulty of water measurement are plaguing water conservation efforts in agriculture. For example, when farms find they are using less water, they tend to plant ever-more-water-intensive crops. Now, researchers are trying to get the message out about the behavioral component of this issue and tackle the measurement problem, using cheap remote-sensing technology, but with water scarcity looming ahead, we have to act soon. This week’s episode was edited by Podigy. Download a transcript of this episode (PDF) Listen to previous podcasts. About the Science Podcast [Image: John A. Kelley, USDA Natural Resources Conservation Service; Music: Jeffrey Cook]




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Liquid–liquid microextraction of glyphosate, glufosinate and aminomethylphosphonic acid for the analysis of agricultural samples by liquid chromatography

Anal. Methods, 2020, 12,2039-2045
DOI: 10.1039/D0AY00120A, Paper
Javier Marín, Natalia Campillo, Manuel Hernández-Córdoba, Isabel Garrido, José Fenoll, Pilar Viñas
An ion-pair liquid–liquid microextraction procedure followed by LC tandem mass spectrometry allows a reliable and sensitive determination glyphosate, glufosinate y aminomethylphosphonic acid in agricultural samples.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Experimental design and optimisation (5): an introduction to optimisation

Anal. Methods, 2020, Advance Article
DOI: 10.1039/D0AY90037K, AMC Technical Brief
Analytical Methods Committee AMCTB no. 95
This Technical Brief outlines the basic principles of optimisation, and introduces some of the most commonly used approaches.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Versatile additively manufactured (3D printed) wall-jet flow cell for high performance liquid chromatography-amperometric analysis: application to the detection and quantification of new psychoactive substances (NBOMes)

Anal. Methods, 2020, 12,2152-2165
DOI: 10.1039/D0AY00500B, Paper
Open Access
Hadil M. Elbardisy, Eduardo M. Richter, Robert D. Crapnell, Michael P. Down, Peter G. Gough, Tarek S. Belal, Wael Talaat, Hoda G. Daabees, Craig E. Banks
Additive manufacturing is an emerging technology of vast applicability, receiving significant interest in a plethora of industrial and research domains as it allows the translation of designs produced via computer software, into 3D printed objects.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Cyclic boronates as versatile scaffolds for KPC-2 β-lactamase inhibition

RSC Med. Chem., 2020, 11,491-496
DOI: 10.1039/C9MD00557A, Research Article
Catherine L. Tooke, Philip Hinchliffe, Alen Krajnc, Adrian J. Mulholland, Jürgen Brem, Christopher J. Schofield, James Spencer
Mono- (vaborbactam) and bi-cyclic (taniborbactam) boronate inhibitors bind KPC-2 similarly, but the latter is essentially irreversible.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Unsaturated soils: proceedings of the 4th Asia Pacific Conference on Unsaturated Soils, Newcastle, Australia, 23- 25 November 2009 / editors, O. Buzzi, S. Fityus & D. Sheng

Online Resource




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Demand for emerging transportation systems: modeling adoption, satisfaction, and mobility patterns / edited by Constantinos Antoniou, Dimitrios Efthymiou, Emmanouil Chaniotakis

Online Resource




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The state, popular mobilisation and gold mining in Mongolia: shaping 'neoliberal' policies / Dulam Bumochir

Online Resource




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Je suis FEMEN = I am FEMEN / Caravel Production, Caroline Velan présente ; image et réalisation, Alain Margot.

Location Media Resources Collection
Call No. HQ1665.45 .J4 2015




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AMSAT Solicits Nominations for the 2020 Board of Directors Election

AMSAT is soliciting candidate nominations for the 2020 Board of Directors Election set for later this year, to fill the seats of three incumbent Directors whose 2-year terms expire in 2020: Tom Clark, K3IO; Mark Hammond, N8MH, and Bruce Paige, KK5DO. AMSAT members may further elect up to two Alternate Directors for 1-year terms. Valid Director nominations must be in writing and require either o...




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First Guatemalan Satellite Deployed from the ISS

Guatemala’s first satellite, a CubeSat called Quetzal-1, was deployed from the International Space Station (ISS) on April 28. Its primary mission is to test a sensor for remote data acquisition for natural resource management, which could be used to monitor water quality in inland water bodies.

The satellite is part of the Japanese Kibo CubeSat program, a product of the cooperation between, amon...




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[ASAP] Photochemical Generation of Benzoazetinone by UV Excitation of Matrix-Isolated Precursors: Isatin or Isatoic Anhydride

The Journal of Physical Chemistry A
DOI: 10.1021/acs.jpca.0c02562




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Advances in plant transgenics: methods and applications / Ramalingam Sathishkumar, Sarma Rajeev Kumar, Jagadeesan Hema, Venkidasamy Baskar, editors

Online Resource




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White gold: the commercialisation of rice farming in the Lower Mekong Basin / Rob Cramb, editor

Online Resource




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Endosymbiotic theories of organelles revisited: retrospects and prospects / Naoki Sato

Online Resource




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How clay particulates affect flow cessation and the coiling stability of yield stress-matched cementing suspensions

Soft Matter, 2020, 16,3929-3940
DOI: 10.1039/C9SM02414J, Paper
Iman Mehdipour, Hakan Atahan, Narayanan Neithalath, Mathieu Bauchy, Edward Garboczi, Gaurav Sant
Transition from closely-packed to fractally-architected structures with clay addition improves homogeneity and prevents local dewatering, thus enhancing coiling stability of layer-wise extruded cementing suspensions during 3D-printing.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Mix and match—a versatile equilibrium approach for hybrid colloidal synthesis

Soft Matter, 2020, Advance Article
DOI: 10.1039/D0SM00202J, Communication
Matan Yah Ben Zion, Yaelin Caba, Ruojie Sha, Nadrian C. Seeman, Paul M. Chaikin
We outline a simple yet general equilibrium technique for a scalable, high-purity, hybrid-colloidal synthesis with controlled valency. The method is applicable for liquid and solid particles and to a range of particle interactions.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




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HC seeks report on sanitisation measures taken at temporary markets

The Madras High Court on Friday granted time till Monday for the State government to file a comprehensive report on steps taken to conduct mass testin




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Inspect chemical factories before reopening: Tamil Nadu Consumer Protection Organisation

The Tamil Nadu Consumer Protection Organisation has asked the Tamil Nadu government to form a committee of officials from the environment, industries




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[ASAP] Persistent Currents in Half-Moon Polariton Condensates

ACS Photonics
DOI: 10.1021/acsphotonics.9b01779




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LSAT entrance exam to be held online due to COVID-19

US-based The Law School Admission Council (LSAC) has decided to administer the 2020 LSAT-India entrance examination online for the first time ever fr




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Navjot Singh Sidhu to begin fast-unto-death from Saturday

"My duty towards Amritsar would never be stopped"




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'Phailin' intensifies into severe cyclonic storm, to hit Odisha and Andhra on Saturday

Squally winds speed reaching 65 kmph would hit Odisha and north Andhra on Friday morning,




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Aarushi-Hemraj double murder: The twists and turns in sensational killings

Dentist couple Rajesh and Nupur Talwar are accused of murdering their 14-year-old daughter Aarushi.




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Essential environment : the science behind the stories / Jay Withgott, Matthew Laposata

Withgott, Jay, author




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Satellite remote sensing for conservation action : case studies from aquatic and terrestrial ecosystems / edited by Allison K. Leidner (ASRC Federal/National Aeronautics and Space Administration), Graeme M. Buchanan (RSPB, Edinburgh, UK)




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Carbon capture and storage : efficient legal policies for risk governance and compensation / Michael G. Faure and Roy A. Partain

Faure, Michael (Michael G.), author




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Arctic marine governance : opportunities for Transatlantic cooperation / Elizabeth Tedsen, Sandra Cavalieri, R. Andreas Kraemer, editors




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West Bengal CM for report on fire,announce compensation for victims



  • DO NOT USE West Bengal
  • India

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Modern physical metallurgy and materials engineering / contributors, William A. Brantley, Satish B. Alapati et al ; [edited and compiled by Auris Reference Editorial Board]




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JSJ 326: Conversation with Ember co-creator Tom Dale on Ember 3.0 and the future of Ember

Panel:

  • Joe Eames
  • Aimee Knight
  • AJ ONeal

Special Guests: Tom Dale

In this episode, the JavaScript Jabber panel talks to Tom Dale about Ember 3.0 and the future of Ember. Tom is the co-creator of Ember and is a principle staff engineer at LinkedIn where he works on a team called Presentation Infrastructure. They talk about being in the customer service role, having a collaborative culture, and all the information on Ember 3.0. They also touch on the tendency towards disposable software, the Ember model, and more!

In particular, we dive pretty deep on:

  • How Joe met Tom
  • Programmers as rule breakers
  • The pressure to conform
  • Tom intro
  • Staff engineer at LinkedIn
  • Customer service role
  • Having a way to role improvements out to a lot of different people
  • JavaScript and Ember at LinkedIn
  • Having a collaborative culture
  • All about Ember 3.0
  • Banner feature – there is nothing new
  • Cracked how you develop software in the open source world that has longevity
  • Major competition in Backbone previously
  • The Ember community has never been more vibrant
  • Tendency towards disposable software
  • The idea of steady iteration towards improvement
  • The Ember model
  • Being different from different frameworks
  • Ember adoption rates
  • Python 3
  • Valuable from a business perspective to use Ember
  • Ember community being friendly to newbies
  • How much Ember VS how much JavaScript will a new developer have to learn?
  • And much, much more!

Links:

Sponsors

Picks:

Joe

Aimee

AJ

  • James Veitch

Tom




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Process of building a civilisation




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[ASAP] Condensation Induced Blistering as a Measurement Technique for the Adhesion Energy of Nanoscale Polymer Films

Nano Letters
DOI: 10.1021/acs.nanolett.0c01086




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[ASAP] Simultaneous Intravital Optical and Acoustic Monitoring of Ultrasound-Triggered Nanobubble Generation and Extravasation

Nano Letters
DOI: 10.1021/acs.nanolett.0c01310




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Hydrology and best practices for managing water resources in arid and semi-arid lands / Christopher Misati Ondiekiand, Kenyatta Universiity, Johnson U. Kitheka, South Eastern Kenya University, Kenya




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Insights into N-heterocyclic carbene and Lewis acid cooperatively catalyzed oxidative [3 + 3] annulation reactions of α,β-unsaturated aldehyde with 1,3-dicarbonyl compounds

Org. Chem. Front., 2020, 7,1113-1121
DOI: 10.1039/D0QO00091D, Research Article
Xinghua Wang, Yang Wang, Jinshuai Song, Donghui Wei
N-Heterocyclic carbene and Lewis acid cooperatively catalyzed oxidative [3 + 3] annulation reactions of 1,3-dicarbonyl compounds have been systematically studied in theory.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Anthranils: versatile building blocks in the construction of C–N bonds and N-heterocycles

Org. Chem. Front., 2020, 7,1177-1196
DOI: 10.1039/D0QO00163E, Review Article
Yang Gao, Jianhong Nie, Yanping Huo, Xiao-Qiang Hu
This review article provides an overview of the recent progress in the transformations of anthranils, which have emerged as versatile building blocks in the assembly of various C–N bonds and medicinally active heterocyclic systems.
The content of this RSS Feed (c) The Royal Society of Chemistry




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A Vinylogous Michael Reaction of 2-Furanones Dimers to α, β-Unsaturated Nitroolefins for Constructing Chiral γ, γ-Disubstituted Butenolides

Org. Chem. Front., 2020, Accepted Manuscript
DOI: 10.1039/D0QO00376J, Research Article
Zhushuang Bai, Cairong Zhang, Yongyi Chen, Aiqin Liu, Xinyu Wang, Chuna Yan, Xuechao Liu, Xiaoru Zhang, Ying Li, Ye Yuan, Zemei Ge, Jingxiang Pang, Yongshuai Chai, Xin Wang, Runtao Li
An efficient bifunctional thiourea catalyzed asymmetric vinylogous Michael addition of 2-furanones dimers to α, β-unsaturated nitroolefins has been developed to give the functional chiral γ,γ-disubstituted butenolides in good yields (up...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Nanocharacterisation / edited by Angus I. Kirkland and John L. Hutchison




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Biogenic production of gold and silver nanoparticles using extracts from indigenous Australian plants : their synthesis, optimisation, characterisation and antibacterial activities / Monali Shah

Shah, Monali, author




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[ASAP] Tug of War between Condensate Phases in a Minimal Macromolecular System

Journal of the American Chemical Society
DOI: 10.1021/jacs.0c01881




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[ASAP] Cytosine Methylation Enhances DNA Condensation Revealed by Equilibrium Measurements Using Magnetic Tweezers

Journal of the American Chemical Society
DOI: 10.1021/jacs.9b11957




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Unsaturated Polyester Resins: blends, interpenetrating polymer networks, composites, and nano composites / edited by Sabu Thomas, Mahesh Hosur and Cintil Jose Chirayil

Online Resource




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What does the Bible say? : a critical conversation with popular culture in a biblically illiterate world / Mary Ann Beavis and HyeRan Kim-Cragg ; foreword by Catherine Faith MacLean

Beavis, Mary Ann, author




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'Hand this man over to Satan' : curse, exclusion and salvation in 1 Corinthians 5 / David Raymond Smith

Smith, David Raymond, author




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Simple organocatalyst component system for asymmetric hetero Diels–Alder reaction of isatins with enones

RSC Adv., 2020, 10,17486-17491
DOI: 10.1039/D0RA03006F, Paper
Open Access
Perumalsamy Parasuraman, Zubeda Begum, Madhu Chennapuram, Chigusa Seki, Yuko Okuyama, Eunsang Kwon, Koji Uwai, Michio Tokiwa, Suguru Tokiwa, Mitsuhiro Takeshita, Hiroto Nakano
A simple two catalysts component system of β-amino alcohols (catalyst) and amino acids (co-catalyst) works as an efficient organocatalysts in hetero Diels–Alder reaction of isatins with enones to afford chiral spirooxindole-tetrahydropyranones.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Correction: Synthesis of α,β-unsaturated esters of perfluoropolyalkylethers (PFPAEs) based on hexafluoropropylene oxide units for photopolymerization

RSC Adv., 2020, 10,17416-17417
DOI: 10.1039/D0RA90036B, Correction
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Céline Bonneaud, Mélanie Decostanzi, Julia Burgess, Giuseppe Trusiano, Trevor Burgess, Roberta Bongiovanni, Christine Joly-Duhamel, Chadron M. Friesen
The content of this RSS Feed (c) The Royal Society of Chemistry




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Tussle between maintaining customer satisfaction and supply chain constraints [electronic resource] : IGNYS automotive / Chuck Munson with Satish Kumar and Dileep More

Munson, Chuck, author




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Web development with MongoDB and Node JS [electronic resource] : build an interactive and full-featured web application from scratch using Node.js and MongoDB / Mithun Sathessh, Bruno Joseph D'mello, Jason Krol

Satheesh, Mithun, author




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Working with mindfulness [electronic resource] : mindfulness and conflict resolution / a conversation with Mirabai Bush and George Kohlrieser

Bush, Mirabai, 1939- author