The Front Cover illustrates the hyperpolarization of bulk water in a recently established catalytic system. It is called NEPTUN (nuclear exchange polarization by transposing unattached nuclei) and is ...based on a novel non‐pairwise chemical exchange process between single p‐H2 protons and solvent molecules. More information can be found in the Communication by M. Emondts et al. on page 2614 in Issue 20, 2018 (DOI: 10.1002/cphc.201800521).
Hyperpolarization with parahydrogen (p‐H2) is a fast developing field in NMR, which enables overcoming the inherent low sensitivity of this important technique. The hyperpolarization of solvents, ...particularly of water, offers a wide range of applications for structural investigations of macromolecules and biomedical imaging. Until lately, only organic solvents could be polarized by means of parahydrogen via coherent redistribution of polarization (SABRE mechanism). In this study, we investigate in detail the mechanism of the recently reported bulk water hyperpolarization with a combination of theoretical and experimental methods, finally showing a chemical exchange pathway of single protons as basis for the enhancement. The prerequisites for preserving hyperpolarization upon separation of the two hydrogen atoms of p−H2 are demonstrated by theoretical examinations of the boundary conditions for the hyperpolarization experiments in accordance with the OneH−PHIP theory. These findings yielded the proposal of the novel NEPTUN mechanism (Nuclear Exchange Polarization by Transposing Unattached Nuclei) as the non‐hydrogenative equivalent to the established OneH−PHIP and thus the missing link in parahydrogen hyperpolarization theory.
The mechanism of the recently reported bulk water hyperpolarization is investigated. The authors find that polarization is transferred by the exchange of single protons between p‐H2 and water and call their new observation NEPTUN (Nuclear Exchange Polarization by Transposing Unattached Nuclei).
Among patients presenting with acute abdominal symptoms, patients with acute mesenteric ischemia (AMI) constitute 0.09% - 0.2% of cases. Unfortunately, due to the short period between the first ...symptoms and irreversible ischemic changes in the intestine, the mortality rate in this group is high - up to 60% - 100%. We present a case of a 75-yearold female with severe comorbidities (ischemic heart disease, atrial fibrillation, poorly controlled arterial hypertension, and a history of colorectal carcinoma previously treated with radio- and chemotherapy). The patient was admitted due to severe abdominal pain. Computed tomography (CT) confirmed superior mesenteric artery (SMA) and celiac trunk embolism. Due to the relatively short time of symptoms onset as well as the soft abdomen, the patient was qualified for percutaneous treatment. Successful percutaneous transluminal angioplasty was performed with stent implantation to SMA and celiac trunk (Neptun C, Balton, Poland). As a result, the patency of both arteries was fully restored. The patient's condition improved within 24 hours, and she was discharged home.
Zusammenfassung
Das Institut für Strategien und Folgenabschätzung des Julius Kühn-Instituts betreibt vier verschiedene Betriebsnetze: Demonstrationsbetriebe integrierter Pflanzenschutz, ...Vergleichsbetriebe Pflanzenschutz, Panel Pflanzenschutzmittel-Anwendungen und NEPTUN-Betriebe. In allen Netzen geht es um die Anwendung von Pflanzenschutzmitteln in der landwirtschaftlichen Praxis. Die drei letztgenannten haben zudem sehr ähnliche Aufgaben und sind eng miteinander verflochten. Das führt dazu, dass Außenstehende erhebliche Probleme haben, diese vier Betriebsnetze zu unterscheiden bzw. die jeweiligen Aktivitäten dem „richtigen“ Netz zuzuordnen.
In dieser Publikation werden die Aufgaben und Zielstellungen der verschiedenen Netze vergleichend dargestellt mit dem Ziel, dem Leser zu verdeutlichen, was sie leisten, was sie voneinander unterscheidet sowie warum es zu der Etablierung dieser vier verschiedenen Betriebsnetze gekommen ist.
When managing invasive fishes, permanent barriers may be best in preventing spread; however, they may not be feasible due to costs and logistical constraints. Alternatively, non-permanent barriers ...using electricity, light, sound, pressure, bubbles, CO2, and other stimuli are being developed and deployed in efforts to limit the spread of aquatic invasive species or to achieve fish guidance and conservation. However, the effectiveness of these barriers is quite variable and testing is often lacking for both target and non-target species. We conducted a series of laboratory trials to examine the effects of a vertical electric barrier on behaviour of common carp Cyprinus carpio (Linnaeus, 1758). In response to the electric field, common carp reduced passing the electric barrier significantly, exhibiting different behaviours when interacting with the electric barrier, and spent more time away from the electric barrier when it was turned on during the stimulus period compared to pre- and post-stimulus periods. Our results suggest that a relatively weak electric gradient (i.e., voltage gradient: 0.2–0.4 V•cm-1, power density: 3–42 µW•cm-3) can inhibit the movement of common carp. Our results also highlight the importance of detailed examination of behavioural responses of target species when evaluating and considering fish-deterrent technologies.
In order to lower the risks associated to intensive pesticide use, efforts have been made at the European and the national level of several member countries of the European Union. In Germany, a ...national reduction programme for pesticides had been set up. The programme makes use of the methods elaborated in the context of the NEPTUN-project. The NEPTUN-approach had introduced several indicators to assess the intensity of pesticide use in agriculture. This approach was exemplarily applied to data from a case study region in north-eastern Germany. The aim of the paper is to discuss the strengths and weaknesses of the presented approach as based on results gained in the chosen case study region.
Članak donosi prikaz transformacija hotelskog kompleksa Neptun na Brijunu Velom, građenog prema projektima bečkog arhitekta Eduarda Kramera od 1910. do 1912. godine.1 Na temelju Kramerovih projekata, ...povijesne fotodokumentacije i analize postojećeg stanja, hotelski se kompleks razmatra u kontekstu onodobne hotelske izgradnje na području Kvarnera, koja početkom 20. stoljeća s razvojem turizma doživljava preobrazbu. Riječ je prije svega o napuštanju zatvorenog historicističkog koncepta u korist razvedenijeg tlocrta i lođama rastvorenih pročelja, kao i bogatije ponude društveno-kulturnih i rekreacijskih sadržaja, što je podrazumijevalo uvođenje javnih prostora kao što su kinodvorana, plesna dvorana, dvorana za slušanje glazbe, prostor za društvene igre, zimski bazen i sl. Istovremeno secesijski vokabular uz natruhe moderne dobiva primat u odnosu na prethodno dominantni neostilski izričaj. Kompleks je, međutim, znatno izmijenjen nizom intervencija nakon Drugog svjetskog rata, a posebno je zanimljiv zahvat koji se izvodi prema projektu slovenskog arhitekta Vinka Glanza na najvećoj zgradi kompleksa – Neptunu III. Naime, u povodu planiranog sastanka predstavnika nesvrstanih zemalja 1956. na Brijunu Velom, Glanz dobiva zadatak od Vlade SFRJ da kompleks hotela Neptun, koji predstavlja vrata otoka, preoblikuje u skladu s političkim aspiracijama ondašnje Jugoslavije. Radom su predstavljeni dosad neobjavljeni nacrti Vinka Glanza za pregradnju Neptuna III, kao i idejno rješenje za preoblikovanje cijeloga kompleksa. Osim Glanzovih intervencija, utvrđene su sve kasnije važnije promjene, poput pregradnje bazenske zgrade i zgrade Neptuna II. Ti su zahvati pridonijeli potpunoj diferencijaciji dijelova prvotno homogene cjeline, što otvara brojna pitanja u vezi s budućom obnovom i prezentacijom kompleksa.
Provider: - Institution: - Data provided by Europeana Collections- Broadcasting of the City Television of Keszthely 98/ 14 season 63. trimester, cut version- A Keszthelyi Városi Televízió 1998. 14. ...évfolyam 63. adásának rövidített, vágott változata- All metadata published by Europeana are available free of restriction under the Creative Commons CC0 1.0 Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana
Provider: - Institution: - Data provided by Europeana Collections- Broadcasting of the City Television of Keszthely 97/ 13 season 113. trimester, cut version- A Keszthelyi Városi Televízió 1997. 13. ...évfolyam 113. adásának rövidített, vágott változata- All metadata published by Europeana are available free of restriction under the Creative Commons CC0 1.0 Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana
ZusammenfassungUm detaillierte und praxisnahe Informationen zur tatsächlichen Anwendung von chemischen Pflanzenschutzmitteln in der Landwirtschaft zu erhalten, wurde 1999/2000 das Projekt „Netzwerk ...zur Ermittlung der Pflanzenschutzmittelanwendung in unterschiedlichen, landwirtschaftlich relevanten Naturräumen Deutschlands (NEPTUN)“ gegründet. Die Datenerfassung basiert auf der freiwilligen Mitarbeit der ausgewählten Betriebe, erfolgt anonym und naturraumbezogen und umfasst alle chemischen Pflanzenschutzmassnahmen einschließlich der Anwendung von Wachstumsreglern. Sie erfordert eine enge Zusammenarbeit zwischen Institutionen der Bundesrepublik Deutschland und der Bundesländer und den jeweiligen Berufsverbänden. Die Finanzierung des Projektes erfolgt durch den Auftraggeber, das BMELV, und ist an die Anzahl der bereitgestellten Datensätze gekoppelt.Die Zusammenführung der Erhebungsdaten bei der Biologischen Bundesanstalt für Land- und Forstwirtschaft und die dortige zentrale Ablage der Daten führen zu der für Analysen und Hochrechnungen erforderlichen einheitlichen Datenstruktur. Gleichzeitig werden durch eine Reihe von Plausibilitätstests die Einzeldaten verifiziert.Alle Datenanalysen beziehen sich auf die definierten Erhebungsregionen bzw. auf das Gebiet der Bundesrepublik Deutschland. Es werden die beiden Bewertungskriterien „Behandlungshäufigkeit“ und „Behandlungsindex“ ermittelt. Außerdem wird ein Ranking bzgl. der eingesetzten Wirkstoffe für die jeweiligen Fruchtarten und Wirkstoffgruppen ermittelt.Methodik und Ergebnisse der Erhebungen werden detailliert in den dazugehörigen Abschlussberichten dokumentiert. Zusätzlich erfolgt in diesen Berichten eine fachliche Bewertung der berechneten Kennziffern.
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