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University of Delaware Provost Dr. Robin Morgan honored for service to agriculture

Dr. Robin Morgan was recognized Thursday evening at the 48th Delaware Agricultural Industry Dinner with the Secretary’s Award for Distinguished Service to Delaware Agriculture for her commitment to agriculture through education, research, and encouraging the next generation of agriculturalists.



  • Department of Agriculture
  • News
  • Delaware Department of Agriculture
  • Delaware Secretary of Agriculture Michael T. Scuse
  • Dr. Robin Morgan
  • Secretary's Award for Distinguished Service to Delaware Agriculture
  • University of Delaware

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U.S. Census of Agriculture data to assist decision making

The U.S. Department of Agriculture (USDA) National Agricultural Statistics Service (NASS) Delaware office today announced the results of the 2017 Census of Agriculture with new information about 2,302 Delaware farms and ranches and those who operate them, including first-time data about on-farm decision making, down to the county level.



  • Department of Agriculture
  • 2017 Census of Agriculture
  • data
  • Delaware agriculture
  • Delaware Secretary of Agriculture Michael T. Scuse
  • Farming
  • U.S. Census of Agriculture

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Celebrating Delaware’s agricultural diversity, linking producers to consumers

Delaware Grown Week – a campaign highlighting the fruits, vegetables, and value-added agricultural products produced in The First State – officially launched with a kick-off event at the Rehoboth Beach Farmers’ Market including Secretary of Agriculture Michael T. Scuse, state legislators, and other officials.




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Delaware State Fair connects fair-goers with Delaware agriculture

DOVER, Del. — The countdown is on for many Delaware youth and adult exhibitors as they get ready to showcase their agricultural exhibits at this year’s Delaware State Fair. Along with rides, food, and games, the state fair is a great opportunity for fair-goers to learn more about agriculture – Delaware’s top industry. “By far, […]




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Delaware Electric Cooperative and the Delaware Department of Agriculture launch new grant program

The Delaware Department of Agriculture has partnered with the Delaware Electric Cooperative to launch a new irrigation grant program to help Delaware farmers install environmentally friendly irrigation systems.



  • Department of Agriculture
  • News
  • Delaware Department of Agriculture
  • Delaware Electric Cooperative
  • diesel-powered irrigation system conversion
  • farmers
  • grants
  • irrigation grant

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Delaware Secretary of Agriculture recognizes Barczewski for contributions to agriculture

Delaware Secretary of Agriculture Michael T. Scuse recognized long-time Delaware State University Department Chair Dr. Richard Barczewski with the Secretary’s Award for Distinguished Service to Delaware Agriculture. With thirty-five years of dedicated service, Barczewski was recognized for developing Delaware’s agricultural industry though educating generations of agriculturalists, promoting animal agriculture, and service to agricultural organizations, including 4-H and FFA.



  • Department of Agriculture
  • Delaware Agricultural Industry Dinner
  • Delaware Council of Farm Organizations
  • Delaware Secretary of Agriculture Michael T. Scuse
  • Delaware State University
  • Dr. Richard Barzewski
  • Secretary's Award for Distinguished Service to Delaware Agriculture

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Delaware agriculture critical to supplying consumers with food during COVID-19 outbreak

DOVER, Del. – The Delaware Department of Agriculture continues to provide services to the public and industry to ensure that our food supply remains safe and plentiful for consumers during the coronavirus disease 2019 (COVID-19) outbreak. “As Delaware’s number one industry, family farms are crucial to supplying a variety of food from poultry and meats, […]




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Delaware Secretary of Agriculture on Importance of Maintaining Food Supply Chain During State of Emergency

DOVER (March 18, 2020) – Maintaining the supply of food and fiber for our citizens, especially during times of an emergency, is of paramount importance. Our poultry industry plays a critical role in feeding our citizens and supplying an abundant, healthy source of protein. “It is extremely important that the entire vertically integrated chain of […]




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The difficult step in effecting forecasting process change (1 of 2)

Two weeks ago we looked at the first two steps in effecting forecasting process change: Justify your suspicions with data Communicate your findings That was the easy part. So why is it that so many organization realize they have a forecasting problem, yet are unable to do anything about it? [...]

The post The difficult step in effecting forecasting process change (1 of 2) appeared first on The Business Forecasting Deal.




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The difficult step in effecting forecasting process change (2 of 2)

Fildes and Goodwin (F&G) observed the subject (the regional subsidiary of a pharmaceutical company) was using a statistical forecasting system, but not fully trusting its output. Forecasters were making overrides to the system generated forecast to make it look like what they believed it should (e.g., following a life-cycle curve [...]

The post The difficult step in effecting forecasting process change (2 of 2) appeared first on The Business Forecasting Deal.




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Horticulture pile-up: Farmers’ losses seen at Rs 15000 crore

The pile-up of harvested or un-harvested perishables may have caused farmers a loss of around Rs 15,000 crore. Market arrivals of fruits and vegetables have sharply fallen since the imposition of the lockdown.




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Dumbest car modifications that make car owners look ridiculous!




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If IPL doesn’t happen, it will be difficult for Dhoni to make comeback, says Gautam Gambhir

The 38-year-old Gambhir picked KL Rahul, who has been keeping in ODIs, as an "apt replacement" for Dhoni.




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Defence, water issues and agriculture to top Narendra Modi’s agenda during Israel visit

Defence, water issues and agriculture will top the agenda of talks when Prime Minister Narendra Modi visits Israel next month.




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Deep sea secrets: Countries claim obscure and difficult-to-reach tracts of the deep-sea world

The ocean has deep secrets. It is a world as vibrant as the one outside. There is a unique ecology that defies common knowledge and often perplexes scientists. This barely-explored territory is also believed to hold vast quantities of precious metals and minerals that can sustain the modern world for centuries. So it is not […]




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Mortgage of agricultural land in kartnataka

IN BELGAVI, KARNATAKA STATE, BOUGHT AGRICULTURAL LAND OF 2.75 ACRES AFTER GETTING DC APPROVAL IN 2018 WITH A LOCK IN TRANSFER 5 YEARS. NOW CAN I TAKE LOAN FROM AN INDIVIDUAL FOR BUYING A TRACTOR AND CULTIVATION OF LAND BY MORTGAGING THIS AGRICULTURAL LAND




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Regarding 84 c kalam and agriculturist certificate

My father had bought land in Pune in 1987 and 7-12 of the land has Ku.Ka. 84 Kas Patra remark on it. In 2017, we sold same land to other person. Now he is asking for our Agriculturist Certificate to transfer 7-12 on his name but we do not have any agriculturist certificate as nobody from our has any farmland. Can i get Agriculturist Certificate if my wife has agriculture land on her name. Please advice. Thank you.




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~$CPIL$387498$title$textbox$U.S. Agriculture Secretary praises animal health work in Kalamazoo$/CPIL$~




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Connecting Modern Agriculture and Innovation

Clint Lewis, Executive Vice President and President, International Operations at Zoetis, shares his insights on the critical role that animal health plays in creating a safe and abundant food supply for a growing global population.




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SemiEngineering Article: Why IP Quality Is So Difficult to Determine

Differentiating good IP from mediocre or bad IP is getting more difficult, in part because it depends upon how and where it is used and in part, because even the best IP may work better in one system than another—even in chips developed by the same vendor.  

So, how do you measure IP quality and why it is so complicated?

The answer depends on who is asking. Most of the time, the definition of IP quality depends on your vantage point.  If you are an R&D manager, IP quality means something. If you are a global supply manager, IP quality means something else. If you are an SoC start-up, your measure of quality is quite different from that of an established fabless company. If you are designing IP in-house, then your considerations are very different than being a commercial IP vendor. If you are designing an automotive SoC, then we are in a totally different category. How about as an IP vendor? How do you articulate IP quality metrics to your customers?

This varies greatly by the type of IP, as well. When it comes to interface (hard) IP and controllers, if you are an R&D manager, your goal is to design IP that meets the IP specifications and PPA (power, performance, and area) targets. You need to validate your design via silicon test chips. This applies to all hard PHYs, which must be mapped to a particular foundry process. For controllers that are in RTL form—we called these soft IP—you have to synthesize them into a particular target library in a particular foundry process in order to realize them in a physical form suitable for SoC integration. Of course, your design will need to go through a series of design validation steps via simulation, design verification and passing the necessary DRC checks, etc. In addition, you want to see the test silicon in various process corners to ensure the IP is robust and will perform well under normal process variations in the production wafers.

For someone in IP procurement, the measure of quality will be based on the maturity of the IP. This involves the number of designs that have been taped out using this IP and the history of bug reports and subsequent fixes. You will be looking for quality of the documentation and the technical deliverables. You will also benchmark the supplier’s standard operating procedures for bug reporting and technical support, as well as meeting delivery performance in prior programs. This is in addition to the technical teams doing their technical diligence.

An in-house team that is likely to design IP for a particular SoC project will be using an established design flow and will have legacy knowledge of last generation’s IP. They may be required to design the IP with some reusability in mind for future programs. However, such reusability requirements will not need to be as stringent and as broad as those of commercial IP vendors because there are likely to be established metrics and procedures in place to follow as part of the design team’s standard operating procedures. Many times, new development based on a prior design that has been proven in use will be started, given this stable starting point. All of these criteria help the team achieve a quality outcome more easily.

Then, if designing for an automotive SoC, additional heavy lifting is required.  Aside from ensuring that the IP meets the specifications of the protocol standards and passes the compliance testing, you also must pay attention to meeting functional safety requirements. This means adherence to ISO 26262 requirements and subsequently achieving ASIL certification. Oftentimes, even for IP, you must perform some AEC-Q100-related tests that are relevant to IP, such as ESD, LU, and HTOL.

To read more, please visit: https://semiengineering.com/why-ip-quality-is-so-difficult-to-determine/




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ICUમાં દાખલ મહિલા સાથે હોસ્પિટલના સ્ટાફનું સામૂહિક દુષ્કર્મ

મહિલાના પતિએ આક્ષેપ લગાવ્યો છે કે ઇન્ટેન્સિવ કેર યુનિટ (ICU)માં સારવાર દરમિયાન તેની પત્નીને ઇન્જેક્શન આપીને બેભાન કરી દેવામાં આવી હતી.




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Irfan Khan| অভিনেতা ইরফান খান ICU-তে, হঠাত্‍ শারীরিক অবস্থার অবনতি!




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XSS Flaws Poke Ridicule At Entertainment Industry




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Asian investors cultivate northern Australia’s agricultural region

A 200-hectare commercial wet-season cotton crop has been planted in Western Australia’s Ord Irrigation Scheme.




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Publication of the EU Market Abuse Regulation: Particular Considerations for Asset Managers

In the same week that the Recast Markets in Financial Instruments Directive (MiFID 2) and its companion Regulation (MiFIR) were ...




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Coronavirus –draft FCA guidance for the Insurance industry – customers in temporary financial difficulty and product value - UK

On 1 May, the FCA issued two sets of draft guidance which will be important reading for all firms involved in insurance arrangements and particularly insurers, intermediaries and premium finance lenders. As it considers that the delay involved in co...




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How Nigeria can use agriculture to mitigate COVID-19 impact — Expert

As the government searches for alternative sources of revenue, experts say the agricultural sector remains a promising area.

The post How Nigeria can use agriculture to mitigate COVID-19 impact — Expert appeared first on Premium Times Nigeria.




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Soweto cop in ICU after testing positive for Covid-19

The officer's diagnosis follows that of another one from the Disaster Operations Centre in Pretoria who tested positive on Wednesday.




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'Let's make the difficult decision & hand Kaizer Chiefs the title' - Radebe

Opinion on the way forward regarding the fate of the PSL campaign is still divided and the Amakhosi legend has weighed in with his views ......




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Contractual Advantage: New Rules of Agricultural and Food Product Trade

The Act of 15 December 2016 on Counteracting Unfair Use of Contractual Advantage in Trade of Agricultural and Food Products came into force and effect on 12 July 2017. The law confers additional powers on the President of the Office of Competition a...




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Coronavirus – Authorities respond to reporting difficulties - UK

Companies are facing difficult times with reporting, audits and meetings in view of the COVID-19  outbreak. In this update we take a look at the measures that have been announced this week to assist companies. Whilst we are seeing some creative...




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Africa’s Youth Scholars Harvest Ideas on the Business of Agriculture

80 young African scholars are tackling the business of agriculture through the innovativeness and freshness that comes with youth — while obtaining their masters or doctoral degrees in the process.

The post Africa’s Youth Scholars Harvest Ideas on the Business of Agriculture appeared first on Inter Press Service.



  • Africa
  • Development & Aid
  • Economy & Trade
  • Editors' Choice
  • Featured
  • Food & Agriculture
  • Food Security and Nutrition
  • Food Sustainability
  • Headlines
  • Poverty & SDGs
  • TerraViva United Nations
  • Alliance for a Green Revolution in Africa (AGRA)
  • Enhancing Capacity to Apply Research Evidence (CARE)
  • International Fund for Agricultural Development (IFAD)
  • International Institute of Tropical Agriculture (IITA)

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Fall in number of people in ICU with Covid-19 - Harris

Minister for Health Simon Harris has said the number of people in intensive care in Irish hospitals with confirmed cases of Covid-19 has fallen further.




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PML-N terms NAB Multan notice to Shahbaz ridiculous

LAHORE: Pakistan Muslim League-N Secretary Information Marriyum Aurangzeb has termed the allegations, levelled by National Accountability Bureau Multan, and the notice issued to Shahbaz Sharif...

[[ This is a content summary only. Visit my website for full links, other content, and more! ]]




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Horticulture Value Chain Development Sector Project: Date Orchards in Nangarhar and Laghman Provinces Social Safeguard Due Diligence Report

Safeguards due diligence reports are prepared as part of safeguard due diligence and review to ensure compliance with ADB safeguard policy due diligence requirements. This document dated May 2020 is provided for the ADB project 51039-002 in Afghanistan.




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Horticulture Value Chain Development Sector Project: Date Orchards in Khost Province Social Safeguard Due Diligence Report

Safeguards due diligence reports are prepared as part of safeguard due diligence and review to ensure compliance with ADB safeguard policy due diligence requirements. This document dated May 2020 is provided for the ADB project 2020-05-07 in Afghanistan.




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‘Difficult to give flawless property papers’

CHENNAI: As if land grab bids and ‘double documents’ are not menace enough for property owners/buyers, the state registration department shocked the Madras high court on Monday, saying it is difficult to issue encumbrance certificates without any fault. An encumbrance certificate (EC) is the basic document which reveals the current status of an immovable property. It is supposed to contain correct ownership details of a piece of property and inform the applicant whether it is encumbered or mortgaged in favour of a bank or any individual. However, responding to an anticipatory bail petition of a landowner who ended up purchasing another person’s property as the EC did not reflect latest […]




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Pakistan: Punjab Irrigated Agriculture Investment Program–Tranche 2

In December 2006, the Asian Development Bank (ADB) approved a $900.0 million equivalent multitranche financing facility (MFF) for the Punjab Irrigated Agriculture Investment Program (PIAIP) to finance improvements to Punjab’s irrigation sector. At the same time, two loans for tranche 1 totaling $227.8 million equivalent were approved using the MFF for $217.8 million equivalent from ADB’s ordinary capital resources and $10.0 million equivalent from ADB’s Asian Development Fund (ADF).




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Vegetable Production and Irrigated Agriculture Project

Approved project 51423-002 in Mongolia.




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Testicular Cancer on Rise in U.S., Especially Among Hispanic Men

Title: Testicular Cancer on Rise in U.S., Especially Among Hispanic Men
Category: Health News
Created: 5/3/2013 12:35:00 PM
Last Editorial Review: 5/3/2013 12:00:00 AM




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Xiaflex (collagenase clostridium histolyticum)

Title: Xiaflex (collagenase clostridium histolyticum)
Category: Medications
Created: 3/3/2020 12:00:00 AM
Last Editorial Review: 3/3/2020 12:00:00 AM




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Redefining Medical Competencies for an Oral Medicine Specialty Training Curriculum Using a Modified Delphi Technique

This article describes the development of medical competencies for oral medicine specialty training in the UK and Ireland by a collaborative working group using a modified Delphi technique. The current specialty training curriculum for oral medicine (OM) in the UK was developed by a working group including members of the British Society for Oral Medicine (BSOM) and members of the Specialty Advisory Committee for Additional Dental Specialties (SACADS) and adopted by the UK General Dental Council (GDC) in 2010. When the curriculum was developed, the entry requirements for specialty training in OM included undergraduate degrees in both dentistry and medicine. At the time of adoption, the requirement for a medical degree was removed. Medical competencies were assumed to have been delivered in medical undergraduate and postgraduate training. Accordingly, there was a need to define the medical competencies for OM specialty training to benefit trainees, trainers, and assessors. In 2018, a group comprising specialty trainers, recent former specialty trainees, and current specialty trainees in OM held face-to-face meetings in addition to email discussions and developed an updated curriculum document to better reflect the medical competencies required in specialty training. A collaborative modified Delphi approach was used to evaluate medical foundation competencies and to include only those that were considered relevant to OM specialty training. A list of relevant and achievable medical competencies was determined that has been approved by SACADS and will be incorporated into a revised OM curriculum from the UK GDC. The newly agreed-upon document for medical competencies in OM specialty training will serve as a reference for trainees, trainers, and assessors and reflects a successful use of a modified Delphi approach.




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Minimalistic Cellulosome of the Butanologenic Bacterium Clostridium saccharoperbutylacetonicum

ABSTRACT

Clostridium saccharoperbutylacetonicum is a mesophilic, anaerobic, butanol-producing bacterium, originally isolated from soil. It was recently reported that C. saccharoperbutylacetonicum possesses multiple cellulosomal elements and would potentially form the smallest cellulosome known in nature. Its genome contains only eight dockerin-bearing enzymes, and its unique scaffoldin bears two cohesins (Cohs), three X2 modules, and two carbohydrate-binding modules (CBMs). In this study, all of the cellulosome-related modules were cloned, expressed, and purified. The recombinant cohesins, dockerins, and CBMs were tested for binding activity using enzyme-linked immunosorbent assay (ELISA)-based techniques. All the enzymes were tested for their comparative enzymatic activity on seven different cellulosic and hemicellulosic substrates, thus revealing four cellulases, a xylanase, a mannanase, a xyloglucanase, and a lichenase. All dockerin-containing enzymes interacted similarly with the second cohesin (Coh2) module, whereas Coh1 was more restricted in its interaction pattern. In addition, the polysaccharide-binding properties of the CBMs within the scaffoldin were examined by two complementary assays, affinity electrophoresis and affinity pulldown. The scaffoldin of C. saccharoperbutylacetonicum exhibited high affinity for cellulosic and hemicellulosic substrates, specifically to microcrystalline cellulose and xyloglucan. Evidence that supports substrate-dependent in vivo secretion of cellulosomes is presented. The results of our analyses contribute to a better understanding of simple cellulosome systems by identifying the key players in this minimalistic system and the binding pattern of its cohesin-dockerin interaction. The knowledge gained by our study will assist further exploration of similar minimalistic cellulosomes and will contribute to the significance of specific sets of defined cellulosomal enzymes in the degradation of cellulosic biomass.

IMPORTANCE Cellulosome-producing bacteria are considered among the most important bacteria in both mesophilic and thermophilic environments, owing to their capacity to deconstruct recalcitrant plant-derived polysaccharides (and notably cellulose) into soluble saccharides for subsequent processing. In many ecosystems, the cellulosome-producing bacteria are particularly effective "first responders." The massive amounts of sugars produced are potentially amenable in industrial settings to further fermentation by appropriate microbes to biofuels, notably ethanol and butanol. Among the solvent-producing bacteria, Clostridium saccharoperbutylacetonicum has the smallest cellulosome system known thus far. The importance of investigating the building blocks of such a small, multifunctional nanomachine is crucial to understanding the fundamental activities of this efficient enzymatic complex.




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Deep Sequencing Uncovers Caste-Associated Diversity of Symbionts in the Social Ant Camponotus japonicus

ABSTRACT

Symbiotic microorganisms can have a profound impact on the host physiology and behavior, and novel relationships between symbionts and their hosts are continually discovered. A colony of social ants consists of various castes that exhibit distinct lifestyles and is, thus, a unique model for investigating how symbionts may be involved in host eusociality. Yet our knowledge of social ant-symbiont dynamics has remained rudimentary. Through 16S rRNA gene deep sequencing of the carpenter ant Camponotus japonicus symbiont community across various castes, we here report caste-dependent diversity of commensal gut microbiota and lineage divergence of "Candidatus Blochmannia," an obligate endosymbiont. While most prevalent gut-associated bacterial populations are found across all castes (Alphaproteobacteria, Gammaproteobacteria, Bacteroidetes, and Cyanobacteria), we also discovered uncultured populations that are found only in males (belonging to Corynebacteriales, Alkanindiges, and Burkholderia). Most of those populations are not detected in laboratory-maintained queens and workers, suggesting that they are facultative gut symbionts introduced via environmental acquisition. Further inspection of "Ca. Blochmannia" endosymbionts reveals that two populations are dominant in all individuals across all castes but that males preferentially contain two different sublineages that are diversified from others. Clearly, each caste has distinct symbiont communities, suggesting an overlooked biological aspect of host-symbiont interaction in social insects.

IMPORTANCE Social animals, such as primates and some insects, have been shown to exchange symbiotic microbes among individuals through sharing diet or habitats, resulting in increased consistency of microbiota among social partners. The ant is a representative of social insects exhibiting various castes within a colony; queens, males, and nonreproductive females (so-called workers) show distinct morphologies, physiologies, and behaviors but tightly interact with each other in the nest. However, how this social context affects their gut microbiota has remained unclear. In this study, we deeply sequenced the gut symbiont community across various castes of the carpenter ant Camponotus japonicus. We report caste-dependent diversity of commensal gut microbial community and lineage divergence of the mutualistic endosymbiont "Candidatus Blochmannia." This report sheds light on the hidden diversity in microbial populations and community structure associated with guts of males in social ants.




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Apraxia of speech involves lesions of dorsal arcuate fasciculus and insula in patients with aphasia

Objective

To determine the contributions of apraxia of speech (AOS) and anomia to conversational dysfluency.

Methods

In this observational study of 52 patients with chronic aphasia, 47 with concomitant AOS, fluency was quantified using correct information units per minute (CIUs/min) from propositional speech tasks. Videos of patients performing conversational, how-to and picture-description tasks, word and sentence repetition, and diadochokinetic tasks were used to diagnose AOS using the Apraxia of Speech Rating Scale (ASRS). Anomia was quantified by patients' scores on the 30 even-numbered items from the Boston Naming Test (BNT).

Results

Together, ASRS and BNT scores accounted for 51.4% of the total variance in CIUs/min; the ASRS score accounted for the majority of that variance. The BNT score was associated with lesions in the left superior temporal gyrus, left inferior frontal gyrus, and large parts of the insula. The global ASRS score was associated with lesions in the left dorsal arcuate fasciculus (AF), pre- and post-central gyri, and both banks of the central sulcus of the insula. The ASRS score for the primary distinguishing features of AOS (no overlap with features of aphasia) was associated with less AF and more insular involvement. Only ~27% of this apraxia-specific lesion overlapped with lesions associated with the BNT score. Lesions associated with AOS had minimal overlap with the frontal aslant tract (FAT) (<1%) or the extreme capsule fiber tract (1.4%). Finally, ASRS scores correlated significantly with damage to the insula but not to the AF, extreme capsule, or FAT.

Conclusions

Results are consistent with previous findings identifying lesions of the insula and AF in patients with AOS, damage to both of which may create dysfluency in patients with aphasia.




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Author response: Functional neurologic disorders: Bringing the informal and hidden curriculum to light

Dr. Sethi raises an excellent point about the term functional neurologic disorder (FND) in his comment on the editorial.1 It seems clear that reticence to use the term functional creates the ambiguity he mentions. Medically unexplained symptoms, categorized in the international classification of diseases as undifferentiated somatoform disorders, are a diagnosis that many providers are loathed to give. Whether that is because of concern about missing a diagnosis is not clear. Having evaluated and treated more than 400 of these individuals in the FND clinic at the University of Colorado, I can attest to the fact that patients arrive confused about their diagnosis. Multiple incorrect diagnoses, as Dr. Sethi points out, pack the medical histories of patients with FND, leading doctors and patients astray. I believe that the commentary by Perez et al.2 gives us the best chance for a way forward, by teaching a new generation of residents and fellows how to approach patients in a nonjudgmental and open-minded fashion. It took 30 years to add Functional Neurologic Disorder to the Diagnostic and Statistical Manual, and it is still parenthetical to the term Conversion.3 Stripping the diagnosis of FND of its stigma and empowering care providers to rule in functional disorders is an actionable step which should be taken.




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Reader response: Functional neurologic disorders: Bringing the informal and hidden curriculum to light

I read with interest the editorial by Strom1 about functional neurologic disorders (FNDs). As a treating physician, I have struggled with the multiple diagnostic labels attached to these patients by physicians of different medical specialties during the course of their clinical disease presentation. A neurologist may assign a patient who presents with chronic fatigue the diagnostic labels of narcolepsy, idiopathic hypersomnia, or chronic Lyme disease. A rheumatologist may assign the label of collagen vascular disease, and a psychiatrist may diagnose depression. This diagnostic ambiguity is troublesome for patients and clinicians alike. I contend that even the term FND needs to be revisited. A patient should be broadly labeled as having a functional disorder and only after characterization sublabeled and referred to an appropriate specialty physician.




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T Follicular Helper Cells Regulate Humoral Response for Host Protection against Intestinal Citrobacter rodentium Infection [INFECTIOUS DISEASE AND HOST RESPONSE]

Key Points

  • Lack of Tfh cells renders the mice susceptible to C. rodentium infection.

  • Tfh cell–dependent protective Abs are essential to control C. rodentium.

  • Tfh cells regulate IgG1 response to C. rodentium infection.




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    Differential Response of the Chicken Trachea to Chronic Infection with Virulent Mycoplasma gallisepticum Strain Ap3AS and Vaxsafe MG (Strain ts-304): a Transcriptional Profile [Host Response and Inflammation]

    Mycoplasma gallisepticum is the primary etiological agent of chronic respiratory disease in chickens. Live attenuated vaccines are most commonly used in the field to control the disease, but current vaccines have some limitations. Vaxsafe MG (strain ts-304) is a new vaccine candidate that is efficacious at a lower dose than the current commercial vaccine strain ts-11, from which it is derived. In this study, the transcriptional profiles of the trachea of unvaccinated chickens and chickens vaccinated with strain ts-304 were compared 2 weeks after challenge with M. gallisepticum strain Ap3AS during the chronic stage of infection. After challenge, genes, gene ontologies, pathways, and protein classes involved in inflammation, cytokine production and signaling, and cell proliferation were upregulated, while those involved in formation and motor movement of cilia, formation of intercellular junctional complexes, and formation of the cytoskeleton were downregulated in the unvaccinated birds compared to the vaccinated birds, reflecting immune dysregulation and the pathological changes induced in the trachea by infection with M. gallisepticum. Vaccination appears to protect the structural and functional integrity of the tracheal mucosa 2 weeks after infection with M. gallisepticum.




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    HIV-1-Specific Chimeric Antigen Receptor T Cells Fail To Recognize and Eliminate the Follicular Dendritic Cell HIV Reservoir In Vitro [Vaccines and Antiviral Agents]

    The major obstacle to a cure for HIV infection is the persistence of replication-competent viral reservoirs during antiretroviral therapy. HIV-specific chimeric antigen receptor (CAR) T cells have been developed to target latently infected CD4+ T cells that express virus either spontaneously or after intentional latency reversal. Whether HIV-specific CAR-T cells can recognize and eliminate the follicular dendritic cell (FDC) reservoir of HIV-bound immune complexes (ICs) is unknown. We created HIV-specific CAR-T cells using human peripheral blood mononuclear cells (PBMCs) and a CAR construct that enables the expression of CD4 (domains 1 and 2) and the carbohydrate recognition domain of mannose binding lectin (MBL) to target native HIV Env (CD4-MBL CAR). We assessed CAR-T cell cytotoxicity using a carboxyfluorescein succinimidyl ester (CFSE) release assay and evaluated CAR-T cell activation through interferon gamma (IFN-) production and CD107a membrane accumulation by flow cytometry. CD4-MBL CAR-T cells displayed potent lytic and functional responses to Env-expressing cell lines and HIV-infected CD4+ T cells but were ineffective at targeting FDC bearing HIV-ICs. CD4-MBL CAR-T cells were unresponsive to cell-free HIV or concentrated, immobilized HIV-ICs in cell-free experiments. Blocking intercellular adhesion molecule-1 (ICAM-1) inhibited the cytolytic response of CD4-MBL CAR-T cells to Env-expressing cell lines and HIV-infected CD4+ T cells, suggesting that factors such as adhesion molecules are necessary for the stabilization of the CAR-Env interaction to elicit a cytotoxic response. Thus, CD4-MBL CAR-T cells are unable to eliminate the FDC-associated HIV reservoir, and alternative strategies to eradicate this reservoir must be sought.

    IMPORTANCE Efforts to cure HIV infection have focused primarily on the elimination of latently infected CD4+ T cells. Few studies have addressed the unique reservoir of infectious HIV that exists on follicular dendritic cells (FDCs), persists in vivo during antiretroviral therapy, and likely contributes to viral rebound upon cessation of antiretroviral therapy. We assessed the efficacy of a novel HIV-specific chimeric antigen receptor (CAR) T cell to target both HIV-infected CD4+ T cells and the FDC reservoir in vitro. Although CAR-T cells eliminated CD4+ T cells that express HIV, they did not respond to or eliminate FDC bound to HIV. These findings reveal a fundamental limitation to CAR-T cell therapy to eradicate HIV.