The use of urinary purine derivatives to estimate microbial protein supply and feed intake by Şule Kaya

“…The urinary excretion of allantoin was first suggested as an index of rumen microbial protein yield about 30 years ago. Major progress towards establishing a method to relate purine derivatives excretion to microbial protein yield has only been made tn recent years. …”
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“Use in Architectural Design” by Daniel Pinson

“…This article is the English version of a paper presented 30 years ago, in 1993, for the Laboratoire Architecture, Usage, Altérité (LAUA). …”
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Fighting Disinformation Online: The Digital Services Act in the American Context by Daniela Peterka-Benton

“…What began roughly 30 years ago has developed into a rich, diverse, but largely unregulated environment we can no longer live without. …”
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Outcome from Acute Repsiratory Distress Syndrome: Is It Really Improving? by Jesús Villar, Arthur S Slutsky

“…Mortality from ARDS has been high since the syndrome was first described almost 30 years ago. Sepsis and extrapulmonary organ failure are the major contributing factors affecting the probability of survival in patients with ARDS. …”
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Review of pressurized thermal shock studies of large scale reactor pressure vessels in Hungary by Tamás Fekete

“…In Hungary, four nuclear power units were constructed more than 30 years ago; they are operating to this day. In every unit, VVER-440 V213-type light-water cooled, light-water moderated, pressurized water reactors are in operation. …”
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Théorie de l’esprit et communication chez les primates non-humains by Laure Legrain

“…The question of the existence of a theory of mind in non-human primates was raised over 30 years ago and today, the debate remains open. The difficulty of finding a consensus probably comes from the fact that theory of mind is not a monolithic ability but involves different kinds of mental states. …”
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Polymeric Gas-Separation Membranes for Petroleum Refining by Yousef Alqaheem, Abdulaziz Alomair, Mari Vinoba, Andrés Pérez

“…Polymeric gas-separation membranes were commercialized 30 years ago. The interest on these systems is increasing because of the simplicity of concept and low-energy consumption. …”
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Being an environmentalist among Catholics ... The School of Integral Ecology Leaders and Other Initiatives of the St. Francis of Assisi Ecological Movement (REFA) by Emilia Ślimko, Stanisław Jaromi

“…Francis of Assisi Ecological Movement (REFA), which emerged over 30 years ago in the environment of Polish Franciscans and which ever since has been propagating the idea of engaging Christians in environmental protection issues. …”
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Experiencia colonial, memoria y olvido en el Paraguay by Ramón Fogel

“…To these sources I added the oral memory testimonies that I collected more than 30 years ago, which have not yet been exploited. These coinciding testimonies can certainly counteract memory’s force which dominant groups seek to impose.…”
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Looking Ahead with the New International Studies by Andrew Wright Hurley

“… As I write this, the world seems to be in a more precarious position than it was 30 years ago, when the Bachelor of Arts in International Studies (BAIS) at the University of Technology Sydney (UTS) was established. …”
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Bioetyka. Jej historia i sposoby ujmowania by Wojciech Bołoz

“…Bioethics is a new scientific branch created over 30 years ago, connecting natural sciences (biology, medicine) with the science of morals in human conduct. …”
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Review of pressurized thermal shock studies of large scale reactor pressure vessels in Hungary by Tamás Fekete

“…In Hungary, four nuclear power units were constructed more than 30 years ago; they are operating to this day. In every unit, VVER-440 V213-type light-water cooled, light-water moderated, ressurized water reactors are in operation. …”
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Le « rôle homosexuel » trente ans plus tard : retour sur le travail de Mary McIntosh by Jeffrey Weeks

“…In this context Mary McIntosh’s article ‘The Homosexual Role’, published 30 years ago, stands out with founding significance. …”
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Internal Marketing (IM): a literature review and research propositions for service excellence by Salomão Alencar de Farias

“…Even though it is not a new concept, since it was first mentioned in the literature more than 30 years ago, confusion still exist on what exactly internal marketing (IM) is. …”
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Analiza uczniowskich błędów – narzędzie polityki edukacyjnej kraju? by Mirosław Dąbrowski

“…In Poland, however, this method of developing mathematics teachers’ skills has been shown some interest since not earlier than 30 years ago. Moreover, it doesn’t seem to be in common use nowadays. …”
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Lithuania’s Binary Worker Classification Vs. A Teleological Interpretation of the EU’s ‘Worker’ Concept by Germany and the UK by Lauschke Hans

“…These approaches influence both countries’ understanding of an autonomous EU ‘worker’ concept, particularly evident in connection with Council Directive 89/391/EEC, which introduced measures to enhance the safety and health of workers at work and was adopted more than 30 years ago.…”
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Sustainable Development of Universities: International and Russian Practices by T. N. Gavrilyeva, Atsuko Sugimoto, Masahiko Fujii, Ryo Yamanaka, G. N. Pavlov, D. A. Kirillin

“…The introduction of the principles of sustainable development into the world system of higher education began 30 years ago. It is one of the global trends now. The accumulated international experience is quite extensive and could be used in the development of the national concept of sustainable development of Russian higher education. …”
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Foreign Body in Paranasal Sinus: A Late Clinical Presentation by Francisco Monteiro, Pedro Oliveira, Artur Condé

“…We present a clinical case of a 64-year-old woman with a paranasal sinus microsurgery history more than 30 years ago, who presented with headache and purulent rhinorrhea. …”
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Methodological developments in the field of structural integrity analyses of large scale reactor pressure vessels in Hungary by Tamás Fekete

“…Four nuclear power generation units have been constructed in Hungary, more than 30 years ago. In every unit, VVER-440 V213 type light-water cooled, light-water moderated, pressurized water reactors are in operation. …”
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Long-Term Followup after Electrocautery Transurethral Resection of the Prostate for Benign Prostatic Hyperplasia by F. Kallenberg, T. A. Hossack, H. H. Woo

“…The historic data lacks use of validated measures and current TURP differs significantly from that performed 30 years ago. Methods. Men who had undergone TURP between 2001 and 2005 were reviewed. …”
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