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198 results on '"Pesic, V"'

1. Dynamic Scheduling for Parallel Server Systems in Heavy Traffic: Graphical Structure, Decoupled Workload Matrix and some Sufficient Conditions for Solvability of the Brownian Control Problem

Author

Pesic, V and Williams, RJ

Subjects
Applied Mathematics, Statistics, Other Information and Computing Sciences
Abstract

We consider a dynamic scheduling problem for parallel server systems. J. M. Harrison has proposed a scheme for using diffusion control problems to approximately solve such control problems for heavily loaded systems. This approach has been very successfully used in the special case when the diffusion control problem can be reduced to an equivalent one for a one-dimensional workload process. However, it remains a challenging open problem to make substantial progress on using Harrison’s scheme when the workload process is more than one-dimensional. Here we present some new structural results concerning the diffusion control problem for parallel server systems with arbitrary workload dimension. Specifically, we prove that a certain server-buffer graph associated with a parallel server system is a forest of trees. We then exploit this graphical structure to prove that there exists a matrix, used to define the workload process, that has a block diagonal-like structure. An important feature of this matrix is that, except when the workload is one-dimensional, this matrix is frequently different from a choice of workload matrix proposed by Harrison. We demonstrate that our workload matrix simplifies the structure of the control problem for the workload process by proving that when the original diffusion control problem has linear holding costs, the equivalent workload formulation also has a linear cost function. We also use this simplification to give sufficient conditions for a certain least control process to be an optimal control for the diffusion control problem with linear holding costs. Under these conditions, we propose a continuous review threshold-type control policy for the original parallel server system that exploits pooling of servers within trees in the server-buffer graph and uses non-basic activities connecting different trees in a critical manner. We call this partial pooling. We conjecture that this threshold policy is asymptotically optimal in the heavy traffic limit. We illustrate the solution of the diffusion control problem and our proposed threshold control policy for a three-buffer, three-server example.

Published
2016

2. Impact of genetics on neoadjuvant therapy with complete pathological response in metastatic colorectal cancer: Case report and review of the literature

Author

Bulajic P, Bidzic N, Djordjevic V, Ceranic Μ, Βasaric D, Pesic V, and Djordjevic-Pesic J

Subjects
bevacizumab, kras (kirsten rat sarcoma) gene mutation, metastatic colorectal cancer, pathological complete response, vanishing metastases, Genetics, QH426-470
Abstract

Treatment of colorectal metastatic cancer is still challenging, despite recent improvements in chemotherapy. A genetic cancer profile, such as the KRAS (Kirsten rat sarcoma) gene status, plays a key role in individualized tailored therapy. Molecular targeted therapy added to neo-adjuvant chemotherapy can achieve a better pathological response and prolong survival. Pathological complete response of colorectal cancer stage IV is rare. A 47-year-old female patient presented with rectal adenocarcinoma and three liver metastases (cT3d/4, N2, Ml). After seven cycles of Bevacizumab and CAPOX in neoadjuvant setting, we noted more than 70.0% regression of metastases and complete regression of the primary tumor. We performed low anterior resection of rectum and synchronous subsegmental resection of S3, because the other two lesions were not detectable. Pathology revealed complete response of the primary and also secondary tumors. After 8 months, diagnostic tests did not show any sign of recurrence and the remaining liver lesions disappeared. Colorectal cancer is a heterogeneous disease and it is necessary to identify patients who are at-risk of recurrence and suitable for neoadjuvant therapy. Genetic biomarkers play an important role in metastatic colorectal cancer treatment. Because of the mutated KRAS gene, Bevacizumab was added to cytotoxic therapy achieving a complete pathological response of primary tumor and metastasis. This case is unique because all reported cases with similar results, described staged surgery and one of reverse staged surgery, but with similar results. This neoadjuvant therapy has extraordinary results for colorectal cancer stage IV and can help disease-free and long-term survival.

Published
2019
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3. Albuminuria as a risk factor for mild cognitive impairment and dementia-what is the evidence?

Author

Bikbov B., Soler M. J., Pesic V., Capasso G., Unwin R., Endres M., Remuzzi G., Perico N., Gansevoort R., Mattace-Raso F., Bruchfeld A., Figurek A., Hafez G., Trepiccione Francesco, CONNECT Action, Bikbov, B., Soler, M. J., Pesic, V., Capasso, G., Unwin, R., Endres, M., Remuzzi, G., Perico, N., Gansevoort, R., Mattace-Raso, F., Bruchfeld, A., Figurek, A., Hafez, G., Trepiccione, Francesco, Connect, Action, Internal Medicine, and University of Zurich

Subjects
medicine.medical_specialty, 10017 Institute of Anatomy, Renal function, 610 Medicine & health, Review, 030204 cardiovascular system & hematology, albuminuria, 03 medical and health sciences, 0302 clinical medicine, mild cognitive impairment, Risk Factors, mental disorders, medicine, Dementia, Albuminuria, Humans, Cognitive Dysfunction, Endothelial dysfunction, Risk factor, Cognitive decline, AcademicSubjects/MED00340, Intensive care medicine, Cross-Sectional Studie, Transplantation, glomerular filtration rate, business.industry, Risk Factor, medicine.disease, 3. Good health, Cross-Sectional Studies, Nephrology, Relative risk, Disease Progression, 570 Life sciences, biology, medicine.symptom, business, 030217 neurology & neurosurgery, chronic kidney disease, dementia, Kidney disease, Human
Abstract

Kidney dysfunction can profoundly influence many organ systems, and recent evidence suggests a potential role for increased albuminuria in the development of mild cognitive impairment (MCI) or dementia. Epidemiological studies conducted in different populations have demonstrated that the presence of increased albuminuria is associated with a higher relative risk of MCI or dementia both in cross-sectional analyses and in studies with long-term follow-up. The underlying pathophysiological mechanisms of albuminuria’s effect are as yet insufficiently studied, with several important knowledge gaps still present in a complex relationship with other MCI and dementia risk factors. Both the kidney and the brain have microvascular similarities that make them sensitive to endothelial dysfunction involving different mechanisms, including oxidative stress and inflammation. The exact substrate of MCI and dementia is still under investigation, however available experimental data indicate that elevated albuminuria and low glomerular filtration rate are associated with significant neuroanatomical declines in hippocampal function and grey matter volume. Thus, albuminuria may be critical in the development of cognitive impairment and its progression to dementia. In this review, we summarize the available evidence on albuminuria’s link to MCI and dementia, point to existing gaps in our knowledge and suggest actions to overcome them. The major question of whether interventions that target increased albuminuria could prevent cognitive decline remains unanswered. Our recommendations for future research are aimed at helping to plan clinical trials and to solve the complex conundrum outlined in this review, with the ultimate goal of improving the lives of patients with chronic kidney disease., Graphical Abstract Graphical Abstract

Published
2022
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13. Altérations athéroscléreuses de l’artère dentaire inférieure en corrélation avec celles de la bifurcation carotidienne et de l’aorte abdominale

Author

Obradovic, O, Bogdanovic, D, Cvetkovic, D, Pesic, V, Petrovic, V, and Dozic, S

Subjects
anatomie pathologique, inferior alveolar artery, anatomy, atherosclerosis, pathological anatomy, artère dentaire inférieure, gros troncs artériels, athérosclérose, anatomie
Abstract

50 corpses from adults aged 20 to 75 have been used in order to study the atherosclerotic lesions occurring in typical regions (bifurcation of the common carotid artery and the abdominal aorta) and their relationship to atherosclerotic changes in the inferior alveolar artery. Histological analysis revealed that atherosclerotic alterations of the inferior alveolar artery may appear sometimes earlier than it would be expected on the ground of age. Intima cell proliferation and thickening of elastic elements in the middle layer of the arterial wall, the first signs of atherosclerosis, were found already at the beginning of the third decade of life when the signs of this process in the typical regions were not yet evident. Atherosclerosis affects essentially the functional capacity of the inferior alveolar artery. The development of atherosclerosis in the wall of this artery favours an hypovascularization of the mandible, which must be of certain importance in every operative procedure in oral surgery, especially in those inducing a severe and long traumatism in bone and soft tissues, such as dental implantations., Cette étude, faite sur 50 cadavres (de 20 à 75 ans) concerne les altérations athéroscléreuses de l’artère dentaire inférieure et leurs rapports avec les altérations athéroscléreuses dans les territoires typiques (bifurcation carotidienne et aorte abdominale). L’examen histologique a fait apparaître que les altérations athéroscléreuses de l’artère dentaire inférieure peuvent être relativement plus évidentes et précoces que l’on ne s’y attendrait compte tenu de l’âge. Une prolifération cellulaire de l’intima et un épaississement de la lame élastique moyenne dans la paroi artérielle, premiers signes de l’athérosclérose, peuvent apparaître dès30 ans, alors que l’on ne trouve pas encore d’altérations de ce type dans les territoires typiques. L’athérosclérose a une influence cruciale sur la capacité fonctionnelle de l’artère dentaire inférieure puisque celle-ci chemine dans le canal osseux, qui empêche sa dilatation. Le développement de l’athérosclérose dans la paroi de cette artère favorise une hypovascularisation de la mandibule, ce qui a une importance certaine lors de toute intervention en chirurgie orale, surtout lorsqu’elle entraîne un traumatisme grave et prolongée de l’os et des parties molles, comme c’est le cas lors de l’insertion d’implants dentaires.

Published
2020

14. Morphometric analysis of mandibular canal: clinical aspects

Author

Obradovic, O, Todorovic, L, Pesic, V, Pejkovic, B, and Vitanovic, V

Subjects
stomatognathic diseases, mandibular canal, morphometric analysis, stomatognathic system, canal mandibulaire, morphométrie
Abstract

Results of morphometric analysis of the mandibular canal (MC), carried out on 105 conserved mandibles, 70 being dentate and 35 edentate, was performed. The analysis was carried out on consecutive sections, at mutual intervals of 0.5 cm. In the mandibular ramus sections were carried out obliquely, approximately in the frontal plane, and horizontally, from mandibular foramen to the lowest region of the vertical part of the MC (all together two sections). In the mandibular corpus, consecutive transversal sections were carried out between existing teeth, or at mutual intervals of 0.5 cm in edentate regions.The obtained results pointed out the very close relationship between the MC and lingual cortical plate of the mandibular ramus. In its horizontal part, the average diameter of the MC was 2.6 mm. It was situated more lingually in the molar region; towards the front, it approached the vestibular cortical plate, being closest to it in the region of the second premolar. Similar relationships of the MC and both cortical plates existed in edentate jaws. Relationships of the MC and tooth root apices varied; however, the MC was closest to the apices of the third molar. Mesially from the mental foramen, a clearly defined incisive canal was present in 92% of the dentale mandibles, but only in 31% of the edentate ones. The nearest to the incisive canal was the apex of the first premolar.The authors point out the importance of presented results in everyday practice, especially in oral and maxillofacial surgery. Having in mind the existing relationship between the MC and neighbouring structures, it is possible to avoid the injury of its content during several oral surgical procedures in mandibular ramus and corpus., L’analyse morphométrique du canal mandibulaire (CM) a été faite sur 105 mandibules conservées. Parmices mandibules, 70 étaient partiellement édentées et 35 totalement édentées. Les distances du CM de la couche compacte osseuse de la mandibule et des apex des racines dentaires ont été mesurées sur les coupes successives pratiquées à une distance de 0,5 cm. Dans la région de la branche montante mandibulaire les coupes successives ont été pratiquées suivant le plan horizontal, de l'orifice postérieur du canal mandibulaire à la terminaison de la partie verticale du CM. La région du corps mandibulaire a été traitée par des coupes verticales. Ces sections ont été faites successivement à travers l’espace entre chaque deux dents ou à une distance de 0,5 cm dans les régions édentées.Les résultats obtenus montrent que le CM se dirige obliquement de haut en bas et en avant, très proche de la lame osseuse linguale. Dans la partie horizontale son diamètre est de 2,6 mm en moyenne. Dans la région des dents molaires le CM est très proche de la lame osseuse linguale; en cheminant en avant, le CM s’approche de la lame osseuse buccale dont il est le plus proche dans la région de la P2. Dans les mandibules édentées, le CM a des rapports semblables.La distance du CM des apex des racines dentaires est variable, pourtant il est le plus proche des apex des racines de la M3. Mésialement du trou mentonnier, le canal incisif était clairement individualisé dans 92% des mandibules avec la denture conservée, et dans 31% des mandibules édentées. La première prémolaire était la plus proche du canal incisif.Les auteurs montrent l’importance des résultats présentés pour la stomatologie clinique, surtout pour la chirurgie orale et maxillofaciale. Compte tenu des rapports du CM avec les structures voisines on peut éviter des lésions de son contenu au cours de certaines interventions chirurgicales sur la branche montante et sur le corps de la mandibule.

Published
2020

15. Osseous structure of the ramus of mandible

Author

Obradovic, O, Bogdanovic, D, Pesic, V, Pejkovic, B, Dozic, D, and Vitanovic, V

Subjects
mandibular ramus, stomatognathic diseases, anatomy, branche montante de la mandibule, structure osseuse, stomatognathic system, chirurgie orale, anatomie, osseous structure, oral surgery
Abstract

Osseous structure of the ramus of mandible (RM) is of a practical clinical significance. Osteosynthesis of fractured segments and the success of the sagittal or the horizontal ramus split osteotomy depends on the cortical bone disposition and thickness.After morphometric investigations of the RM, conducted on 70 mandibles of adults, consecutive horizontal and frontal sections were made. On these sections, the cortical layer was studied and the cortical bone thickness was measured at four previously marked points.In the regard of morphometry, the significant datum is that nearly half of all the cases is grouped round the mean value of any parameter.Cortical bone is continuous and its two main sheets are the buccal and the lingual cortical plates. In its entirety, the buccal cortical plate is thicker than the lingual. The thickness of both cortical plates increases in the direction from the coronoid process to the angle of mandible., L’ostéosynthèse de la branche montante de la mandibule et le succès de l’ostéotomie sagittale ou horizontale de cette branche dépendent de la disposition et de l’épaisseur de sa couche osseuse compacte. Les examens morphométriques qui ont été faits sur 70 mandibules des sujets adultes montrent que presque la moitié de tous les cas se groupent autour de la valeur moyenne des paramètres mesurés (schéma 1 et tableau I).Sur les coupes horizontales et frontales, l’épaisseur des lames compactes buccale et linguale a été mesurée dans certains points prédéterminés et il a été établi que la lame buccale est toujours plus épaisse (schéma 2 et tableau II).

Published
2020

16. Altérations de l’artère dentaire inférieure en relation avec l’âge

Author

Obradovic, O, Bogdanovic, D, Cvetkovic, D, Petrovic, V, and Pesic, V

Subjects
stomatognathic diseases, artère dentaire inférieure, age, stomatognathic system, altérations artérielles en relation avec l’âge, sense organs, skin and connective tissue diseases
Abstract

The change of the inferior dental artery connected with age.The inferior dental artery is, in its intraosseus part a blood vessel that undergoes changes during life.Its changes as well as far as the anatomy is concerned as the structure of its wall.Because of the hypertrophy of its elastic blade in advanced age, this vessel becomes sinuous. The thickening of its walls reduces its lulen which makes the artery angiographically «inconstant» and its identification uncertain. Because of the apparition of asymetric atheromateous changes, the diameter of the artery becomes unequal.The structure changes of the inferior dental artery, together with the lass of teeth might be one of the essentiel factors in the progressive atrophy of the alveolar bone but also of the whole body of the mandible.

Published
2020

17. Relations of mandibular canal to the sides of mandibular body and possibilities for its traumatism

Author

Obradovic, O, Bogdanovic, D, Pesic, V, Petrovic, V, and Pejkovic, B

Subjects
mandible, canal mandibulaire, mandibule, chirurgie orale, anatomie, stomatognathic diseases, mandibular canal, anatomy, stomatognathic system, oral surgery
Abstract

The investigations of relations and position of the mandibular canal (CM) were carried out on 80 mandibles (33 dentulous, 27 partly edentulous and 20 completely edentulous).The studies of relations of CM to the sides of mandibular body were accomplished by morphometric analysis of CM on consecutive transversal sections of mandibular body (54 preparations). The relation of the CM to be buccal or to the lingual side is expressed as the distance from the surface of the correspondent side of the mandibular body, which is shown in Table 1. According to these data, the position of the canal is at first proximate to the lingual side, and from the first molar tooth (M1) it approaches the buccal surface of the mandibular body.The position of the entire CM was determined by analysis of mandibular preparations (26) after removing the buccal osseous lamina. These investigations revealed that the position of the CM is predominantly buccal. Reconstruction of relations of the CM to the sides of mandibular body, according to the data obtained from transversal sections, and the real position of the CM are presented in Scheme I.The difference in direction lines of relations and of predominant position of the CM is a consequence of morphological characteristics of mandibular body., Le CM a été étudié sur 80 mandibules (dont 33 avec la denture conservée, 27 peu édentées et 20 totalement édentées). L’analyse morphométrique des rapports du CM a été faite sur les coupes frontales de la mandibule (54). La position du CM en entier a été examinée après la trépanation du corps mandibulaire (26 préparations). La reconstruction des rapports du CM d’après les données obtenues sur les coupes fait apparaître que le canal a d’abord une position linguale, ensuite il croise la M1 et se termine dans une position buccale. Dans la plupart des cas, le CM a, dans la majeure partie de son trajet, une position buccale à cause de la configuration caractéristique du corps mandibulaire.

Published
2020

22. Sediment Respiration Pulses in Intermittent Rivers and Ephemeral Streams

Author

von Schiller, D., Datry, T., Corti, R., Foulquier, A., Tockner, K., Marce, R., Garcia-Baquero, G., Odriozola, I, Obrador, B., Elosegi, A., Mendoza-Lera, C., Gessner, M. O., Stubbington, R., Albarino, R., Allen, D. C., Altermatt, F., Arce, M. , I, Arnon, S., Banas, D., Banegas-Medina, A., Beller, E., Blanchette, M. L., Blanco-Libreros, J. F., Blessing, J., Boechat, I. G., Boersma, K. S., Bogan, M. T., Bonada, N., Bond, N. R., Brintrup, K., Bruder, A., Burrows, R. M., Cancellario, T., Carlson, S. M., Cauvy-Fraunie, S., Cid, N., Danger, M., de Freitas Terra, B., Dehedin, A., De Girolamo, A. M., del Campo, R., Diaz-Villanueva, V., Duerdoth, C. P., Dyer, F., Faye, E., Febria, C., Figueroa, R., Four, B., Gafny, S., Gomez, R., Gómez-Gener, Lluís, Graca, M. A. S., Guareschi, S., Gucker, B., Hoppeler, F., Hwan, J. L., Kubheka, S., Laini, A., Langhans, S. D., Leigh, C., Little, C. J., Lorenz, S., Marshall, J., Martin, E. J., McIntosh, A., Meyer, E. , I, Milisa, M., Mlambo, M. C., Moleon, M., Morais, M., Negus, P., Niyogi, D., Papatheodoulou, A., Pardo, I, Paril, P., Pesic, V, Piscart, C., Polasek, M., Rodriguez-Lozano, P., Rolls, R. J., Sanchez-Montoya, M. M., Savic, A., Shumilova, O., Steward, A., Taleb, A., Uzan, A., Vander Vorste, R., Waltham, N., Woelfle-Erskine, C., Zak, D., Zarfl, C., Zoppini, A., von Schiller, D., Datry, T., Corti, R., Foulquier, A., Tockner, K., Marce, R., Garcia-Baquero, G., Odriozola, I, Obrador, B., Elosegi, A., Mendoza-Lera, C., Gessner, M. O., Stubbington, R., Albarino, R., Allen, D. C., Altermatt, F., Arce, M. , I, Arnon, S., Banas, D., Banegas-Medina, A., Beller, E., Blanchette, M. L., Blanco-Libreros, J. F., Blessing, J., Boechat, I. G., Boersma, K. S., Bogan, M. T., Bonada, N., Bond, N. R., Brintrup, K., Bruder, A., Burrows, R. M., Cancellario, T., Carlson, S. M., Cauvy-Fraunie, S., Cid, N., Danger, M., de Freitas Terra, B., Dehedin, A., De Girolamo, A. M., del Campo, R., Diaz-Villanueva, V., Duerdoth, C. P., Dyer, F., Faye, E., Febria, C., Figueroa, R., Four, B., Gafny, S., Gomez, R., Gómez-Gener, Lluís, Graca, M. A. S., Guareschi, S., Gucker, B., Hoppeler, F., Hwan, J. L., Kubheka, S., Laini, A., Langhans, S. D., Leigh, C., Little, C. J., Lorenz, S., Marshall, J., Martin, E. J., McIntosh, A., Meyer, E. , I, Milisa, M., Mlambo, M. C., Moleon, M., Morais, M., Negus, P., Niyogi, D., Papatheodoulou, A., Pardo, I, Paril, P., Pesic, V, Piscart, C., Polasek, M., Rodriguez-Lozano, P., Rolls, R. J., Sanchez-Montoya, M. M., Savic, A., Shumilova, O., Steward, A., Taleb, A., Uzan, A., Vander Vorste, R., Waltham, N., Woelfle-Erskine, C., Zak, D., Zarfl, C., and Zoppini, A.

Abstract

Intermittent rivers and ephemeral streams (IRES) may represent over half the global stream network, but their contribution to respiration and carbon dioxide (CO2) emissions is largely undetermined. In particular, little is known about the variability and drivers of respiration in IRES sediments upon rewetting, which could result in large pulses of CO2. We present a global study examining sediments from 200 dry IRES reaches spanning multiple biomes. Results from standardized assays show that mean respiration increased 32-fold to 66-fold upon sediment rewetting. Structural equation modeling indicates that this response was driven by sediment texture and organic matter quantity and quality, which, in turn, were influenced by climate, land use, and riparian plant cover. Our estimates suggest that respiration pulses resulting from rewetting of IRES sediments could contribute significantly to annual CO2 emissions from the global stream network, with a single respiration pulse potentially increasing emission by 0.2-0.7%. As the spatial and temporal extent of IRES increases globally, our results highlight the importance of recognizing the influence of wetting-drying cycles on respiration and CO2 emissions in stream networks.

Published
2019
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23. Sediment Respiration Pulses in Intermittent Rivers and Ephemeral Streams

Author

Von Schiller Calle, Daniel Gaspar, Datry, T., Corti, R., Foulquier, A., Tockner, K., Marcé, R., García-Baquero, G., Odriozola, I., Obrador, B., Elosegi Irurtia, Arturo, Mendoza-Lera, C., Gessner, M.O., Stubbington, R., Albariño, R., Allen, D.C., Altermatt, F., Arce, M.I., Arnon, S., Banas, D., Banegas-Medina, A., Beller, E., Blanchette, M.L., Blanco-Libreros, J.F., Blessing, J., Boëchat, I.G., Boersma, K.S., Bogan, M.T., Bonada, N., Bond, N.R., Brintrup, K., Bruder, A., Burrows, R.M., Cancellario, T., Carlson, S.M., Cauvy-Fraunié, S., Cid, N., Danger, M., de Freitas Terra, B., Dehedin, A., De Girolamo, A.M., del Campo, R., Díaz-Villanueva, V., Duerdoth, C.P., Dyer, F., Faye, E., Febria, C., Figueroa, R., Four, B., Gafny, S., Gómez, R., Gómez-Gener, L., Graça, M.A.S., Guareschi, S., Gücker, B., Hoppeler, F., Hwan, J.L., Kubheka, S., Laini, A., Langhans, S.D., Leigh, C., Little, C.J., Lorenz, S., Marshall, J., Martín, E.J., McIntosh, A., Meyer, E.I., Milisa, M., Mlambo, M.C., Moleón, M., Morais, M., Negus, P., Niyogi, D., Papatheodoulou, A., Pardo, I., Paril, P., Pesic, V., Piscart, C., Polasek, M., Rodríguez-Lozano, P., Rolls, R.J., Sánchez-Montoya, M.M., Savic, A., Shumilova, O., Steward, A., Taleb, A., Uzan, A., Van der Vorste, R., Waltham, N., Woelfle-Erskine, C., Zak, D., Zarfl, C., Zoppini, A., Von Schiller Calle, Daniel Gaspar, Datry, T., Corti, R., Foulquier, A., Tockner, K., Marcé, R., García-Baquero, G., Odriozola, I., Obrador, B., Elosegi Irurtia, Arturo, Mendoza-Lera, C., Gessner, M.O., Stubbington, R., Albariño, R., Allen, D.C., Altermatt, F., Arce, M.I., Arnon, S., Banas, D., Banegas-Medina, A., Beller, E., Blanchette, M.L., Blanco-Libreros, J.F., Blessing, J., Boëchat, I.G., Boersma, K.S., Bogan, M.T., Bonada, N., Bond, N.R., Brintrup, K., Bruder, A., Burrows, R.M., Cancellario, T., Carlson, S.M., Cauvy-Fraunié, S., Cid, N., Danger, M., de Freitas Terra, B., Dehedin, A., De Girolamo, A.M., del Campo, R., Díaz-Villanueva, V., Duerdoth, C.P., Dyer, F., Faye, E., Febria, C., Figueroa, R., Four, B., Gafny, S., Gómez, R., Gómez-Gener, L., Graça, M.A.S., Guareschi, S., Gücker, B., Hoppeler, F., Hwan, J.L., Kubheka, S., Laini, A., Langhans, S.D., Leigh, C., Little, C.J., Lorenz, S., Marshall, J., Martín, E.J., McIntosh, A., Meyer, E.I., Milisa, M., Mlambo, M.C., Moleón, M., Morais, M., Negus, P., Niyogi, D., Papatheodoulou, A., Pardo, I., Paril, P., Pesic, V., Piscart, C., Polasek, M., Rodríguez-Lozano, P., Rolls, R.J., Sánchez-Montoya, M.M., Savic, A., Shumilova, O., Steward, A., Taleb, A., Uzan, A., Van der Vorste, R., Waltham, N., Woelfle-Erskine, C., Zak, D., Zarfl, C., and Zoppini, A.

Abstract

Intermittent rivers and ephemeral streams (IRES) may represent over half the global stream network, but their contribution to respiration and carbon dioxide (CO2) emissions is largely undetermined. In particular, little is known about the variability and drivers of respiration in IRES sediments upon rewetting, which could result in large pulses of CO2. We present a global study examining sediments from 200 dry IRES reaches spanning multiple biomes. Results from standardized assays show that mean respiration increased 32-fold to 66-fold upon sediment rewetting. Structural equation modeling indicates that this response was driven by sediment texture and organic matter quantity and quality, which, in turn, were influenced by climate, land use, and riparian plant cover. Our estimates suggest that respiration pulses resulting from rewetting of IRES sediments could contribute significantly to annual CO2 emissions from the global stream network, with a single respiration pulse potentially increasing emission by 0.2 0.7%. As the spatial and temporal extent of IRES increases globally, our results highlight the importance of recognizing the influence of wetting-drying cycles on respiration and CO2 emissions in stream networks. (c)2019. American Geophysical Union. All Rights Reserved.

Published
2019

24. Simulating rewetting events in intermittent rivers and ephemeral streams: A global analysis of leached nutrients and organic matter

Author

Shumilova, O., Zak, D., Datry, T., Von Schiller Calle, Daniel Gaspar, Corti, R., Foulquier, A., Obrador, B., Tockner, K., Allan, D.C., Altermatt, F., Arce, M.I., Arnon, S., Banas, D., Banegas-Medina, A., Beller, E., Blanchette, M.L., Blanco-Libreros, J.F., Blessing, J., Boëchat, I.G., Boersma, K., Bogan, M.T., Bonada, N., Bond, N.R., Brintrup, K., Bruder, A., Burrows, R., Cancellario, T., Carlson, S.M., Cauvy-Fraunié, S., Cid, N., Danger, M., de Freitas, Terra, B., Girolamo, A.M.D., del Campo, R., Dyer, F., Elosegi, A., Faye, E., Febria, C., Figueroa, R., Four, B., Gessner, M.O., Gnohossou, P., Cerezo, R.G., Gomez-Gener, L., Graça, M.A.S., Guareschi, S., Gücker, B., Hwan, J.L., Kubheka, S., Langhans, S.D., Leigh, C., Little, C.J., Lorenz, S., Marshall, J., McIntosh, A., Mendoza-Lera, C., Meyer, E.I., Milisa, M., Mlambo, M.C., Moleón, M., Negus, P., Niyogi, D., Papatheodoulou, A., Pardo, I., Paril, P., Pesic, V., Rodriguez-Lozano, P., Rolls, R.J., Sanchez-Montoya, M.M., Savic, A., Steward, A., Stubbington, R., Taleb, A., Vorste, R.V., Waltham, N., Zoppini, A., Zarfl, C., Shumilova, O., Zak, D., Datry, T., Von Schiller Calle, Daniel Gaspar, Corti, R., Foulquier, A., Obrador, B., Tockner, K., Allan, D.C., Altermatt, F., Arce, M.I., Arnon, S., Banas, D., Banegas-Medina, A., Beller, E., Blanchette, M.L., Blanco-Libreros, J.F., Blessing, J., Boëchat, I.G., Boersma, K., Bogan, M.T., Bonada, N., Bond, N.R., Brintrup, K., Bruder, A., Burrows, R., Cancellario, T., Carlson, S.M., Cauvy-Fraunié, S., Cid, N., Danger, M., de Freitas, Terra, B., Girolamo, A.M.D., del Campo, R., Dyer, F., Elosegi, A., Faye, E., Febria, C., Figueroa, R., Four, B., Gessner, M.O., Gnohossou, P., Cerezo, R.G., Gomez-Gener, L., Graça, M.A.S., Guareschi, S., Gücker, B., Hwan, J.L., Kubheka, S., Langhans, S.D., Leigh, C., Little, C.J., Lorenz, S., Marshall, J., McIntosh, A., Mendoza-Lera, C., Meyer, E.I., Milisa, M., Mlambo, M.C., Moleón, M., Negus, P., Niyogi, D., Papatheodoulou, A., Pardo, I., Paril, P., Pesic, V., Rodriguez-Lozano, P., Rolls, R.J., Sanchez-Montoya, M.M., Savic, A., Steward, A., Stubbington, R., Taleb, A., Vorste, R.V., Waltham, N., Zoppini, A., and Zarfl, C.

Abstract

Climate change and human pressures are changing the global distribution and the extent of intermittent rivers and ephemeral streams (IRES), which comprise half of the global river network area. IRES are characterized by periods of flow cessation, during which channel substrates accumulate and undergo physico-chemical changes (preconditioning), and periods of flow resumption, when these substrates are rewetted and release pulses of dissolved nutrients and organic matter (OM). However, there are no estimates of the amounts and quality of leached substances, nor is there information on the underlying environmental constraints operating at the global scale. We experimentally simulated, under standard laboratory conditions, rewetting of leaves, riverbed sediments, and epilithic biofilms collected during the dry phase across 205 IRES from five major climate zones. We determined the amounts and qualitative characteristics of the leached nutrients and OM, and estimated their areal fluxes from riverbeds. In addition, we evaluated the variance in leachate characteristics in relation to selected environmental variables and substrate characteristics. We found that sediments, due to their large quantities within riverbeds, contribute most to the overall flux of dissolved substances during rewetting events (56% 98%), and that flux rates distinctly differ among climate zones. Dissolved organic carbon, phenolics, and nitrate contributed most to the areal fluxes. The largest amounts of leached substances were found in the continental climate zone, coinciding with the lowest potential bioavailability of the leached OM. The opposite pattern was found in the arid zone. Environmental variables expected to be modified under climate change (i.e. potential evapotranspiration, aridity, dry period duration, land use) were correlated with the amount of leached substances, with the strongest relationship found for sediments. These results show that the role of IRES should be accounted for in g

Published
2019

25. Simulating rewetting events in intermittent rivers and ephemeral streams: A global analysis of leached nutrients and organic matter

Author

Shumilova, O, Zak, D, Datry, T, von Schiller, D, Corti, R, Foulquier, A, Obrador, B, Tockner, K, Allan, DC, Altermatt, F, Isabel Arce, M, Arnon, S, Banas, D, Banegas-Medina, A, Beller, E, Blanchette, ML, Blanco-Libreros, JF, Blessing, J, Boechat, IG, Boersma, K, Bogan, MT, Bonada, N, Bond, NR, Brintrup, K, Bruder, A, Burrows, R, Cancellario, T, Carlson, SM, Cauvy-Fraunie, S, Cid, N, Danger, M, de Freitas Terra, B, De Girolamo, AM, del Campo, R, Dyer, F, Elosegi, A, Faye, E, Febria, C, Figueroa, R, Four, B, Gessner, MO, Gnohossou, P, Cerezo, RG, Gomez-Gener, L, Graca, MAS, Guareschi, S, Guecker, B, Hwan, JL, Kubheka, S, Langhans, SD, Leigh, C, Little, CJ, Lorenz, S, Marshall, J, McIntosh, A, Mendoza-Lera, C, Meyer, EI, Milisa, M, Mlambo, MC, Moleon, M, Negus, P, Niyogi, D, Papatheodoulou, A, Pardo, I, Paril, P, Pesic, V, Rodriguez-Lozano, P, Rolls, RJ, Sanchez-Montoya, MM, Savic, A, Steward, A, Stubbington, R, Taleb, A, Vander Vorste, R, Waltham, N, Zoppini, A, Zarfl, C, Shumilova, O, Zak, D, Datry, T, von Schiller, D, Corti, R, Foulquier, A, Obrador, B, Tockner, K, Allan, DC, Altermatt, F, Isabel Arce, M, Arnon, S, Banas, D, Banegas-Medina, A, Beller, E, Blanchette, ML, Blanco-Libreros, JF, Blessing, J, Boechat, IG, Boersma, K, Bogan, MT, Bonada, N, Bond, NR, Brintrup, K, Bruder, A, Burrows, R, Cancellario, T, Carlson, SM, Cauvy-Fraunie, S, Cid, N, Danger, M, de Freitas Terra, B, De Girolamo, AM, del Campo, R, Dyer, F, Elosegi, A, Faye, E, Febria, C, Figueroa, R, Four, B, Gessner, MO, Gnohossou, P, Cerezo, RG, Gomez-Gener, L, Graca, MAS, Guareschi, S, Guecker, B, Hwan, JL, Kubheka, S, Langhans, SD, Leigh, C, Little, CJ, Lorenz, S, Marshall, J, McIntosh, A, Mendoza-Lera, C, Meyer, EI, Milisa, M, Mlambo, MC, Moleon, M, Negus, P, Niyogi, D, Papatheodoulou, A, Pardo, I, Paril, P, Pesic, V, Rodriguez-Lozano, P, Rolls, RJ, Sanchez-Montoya, MM, Savic, A, Steward, A, Stubbington, R, Taleb, A, Vander Vorste, R, Waltham, N, Zoppini, A, and Zarfl, C

Abstract

Climate change and human pressures are changing the global distribution and the extent of intermittent rivers and ephemeral streams (IRES), which comprise half of the global river network area. IRES are characterized by periods of flow cessation, during which channel substrates accumulate and undergo physico-chemical changes (preconditioning), and periods of flow resumption, when these substrates are rewetted and release pulses of dissolved nutrients and organic matter (OM). However, there are no estimates of the amounts and quality of leached substances, nor is there information on the underlying environmental constraints operating at the global scale. We experimentally simulated, under standard laboratory conditions, rewetting of leaves, riverbed sediments, and epilithic biofilms collected during the dry phase across 205 IRES from five major climate zones. We determined the amounts and qualitative characteristics of the leached nutrients and OM, and estimated their areal fluxes from riverbeds. In addition, we evaluated the variance in leachate characteristics in relation to selected environmental variables and substrate characteristics. We found that sediments, due to their large quantities within riverbeds, contribute most to the overall flux of dissolved substances during rewetting events (56%–98%), and that flux rates distinctly differ among climate zones. Dissolved organic carbon, phenolics, and nitrate contributed most to the areal fluxes. The largest amounts of leached substances were found in the continental climate zone, coinciding with the lowest potential bioavailability of the leached OM. The opposite pattern was found in the arid zone. Environmental variables expected to be modified under climate change (i.e. potential evapotranspiration, aridity, dry period duration, land use) were correlated with the amount of leached substances, with the strongest relationship found for sediments. These results show that the role of IRES should be accounted for in g

Published
2019

26. Sediment Respiration Pulses in Intermittent Rivers and Ephemeral Streams

Author

von Schiller, D, Datry, T, Corti, R, Foulquier, A, Tockner, K, Marce, R, Garcia-Baquero, G, Odriozola, I, Obrador, B, Elosegi, A, Mendoza-Lera, C, Gessner, MO, Stubbington, R, Albarino, R, Allen, DC, Altermatt, F, Arce, M, Arnon, S, Banas, D, Banegas-Medina, A, Beller, E, Blanchette, ML, Blanco-Libreros, JF, Blessing, J, Boechat, IG, Boersma, KS, Bogan, MT, Bonada, N, Bond, NR, Brintrup, K, Bruder, A, Burrows, RM, Cancellario, T, Carlson, SM, Cauvy-Fraunie, S, Cid, N, Danger, M, de Freitas Terra, B, Dehedin, A, De Girolamo, AM, del Campo, R, Diaz-Villanueva, V, Duerdoth, CP, Dyer, F, Faye, E, Febria, C, Figueroa, R, Four, B, Gafny, S, Gomez, R, Gomez-Gener, L, Graca, MAS, Guareschi, S, Gucker, B, Hoppeler, F, Hwan, JL, Kubheka, S, Laini, A, Langhans, SD, Leigh, C, Little, CJ, Lorenz, S, Marshall, J, Martin, EJ, McIntosh, A, Meyer, E, Milisa, M, Mlambo, MC, Moleon, M, Morais, M, Negus, P, Niyogi, D, Papatheodoulou, A, Pardo, I, Paril, P, Pesic, V, Piscart, C, Polasek, M, Rodriguez-Lozano, P, Rolls, RJ, Sanchez-Montoya, MM, Savic, A, Shumilova, O, Steward, A, Taleb, A, Uzan, A, Vander Vorste, R, Waltham, N, Woelfle-Erskine, C, Zak, D, Zarfl, C, Zoppini, A, von Schiller, D, Datry, T, Corti, R, Foulquier, A, Tockner, K, Marce, R, Garcia-Baquero, G, Odriozola, I, Obrador, B, Elosegi, A, Mendoza-Lera, C, Gessner, MO, Stubbington, R, Albarino, R, Allen, DC, Altermatt, F, Arce, M, Arnon, S, Banas, D, Banegas-Medina, A, Beller, E, Blanchette, ML, Blanco-Libreros, JF, Blessing, J, Boechat, IG, Boersma, KS, Bogan, MT, Bonada, N, Bond, NR, Brintrup, K, Bruder, A, Burrows, RM, Cancellario, T, Carlson, SM, Cauvy-Fraunie, S, Cid, N, Danger, M, de Freitas Terra, B, Dehedin, A, De Girolamo, AM, del Campo, R, Diaz-Villanueva, V, Duerdoth, CP, Dyer, F, Faye, E, Febria, C, Figueroa, R, Four, B, Gafny, S, Gomez, R, Gomez-Gener, L, Graca, MAS, Guareschi, S, Gucker, B, Hoppeler, F, Hwan, JL, Kubheka, S, Laini, A, Langhans, SD, Leigh, C, Little, CJ, Lorenz, S, Marshall, J, Martin, EJ, McIntosh, A, Meyer, E, Milisa, M, Mlambo, MC, Moleon, M, Morais, M, Negus, P, Niyogi, D, Papatheodoulou, A, Pardo, I, Paril, P, Pesic, V, Piscart, C, Polasek, M, Rodriguez-Lozano, P, Rolls, RJ, Sanchez-Montoya, MM, Savic, A, Shumilova, O, Steward, A, Taleb, A, Uzan, A, Vander Vorste, R, Waltham, N, Woelfle-Erskine, C, Zak, D, Zarfl, C, and Zoppini, A

Abstract

Intermittent rivers and ephemeral streams (IRES) may represent over half the global stream network, but their contribution to respiration and carbon dioxide (CO2) emissions is largely undetermined. In particular, little is known about the variability and drivers of respiration in IRES sediments upon rewetting, which could result in large pulses of CO2. We present a global study examining sediments from 200 dry IRES reaches spanning multiple biomes. Results from standardized assays show that mean respiration increased 32-fold to 66-fold upon sediment rewetting. Structural equation modeling indicates that this response was driven by sediment texture and organic matter quantity and quality, which, in turn, were influenced by climate, land use, and riparian plant cover. Our estimates suggest that respiration pulses resulting from rewetting of IRES sediments could contribute significantly to annual CO2 emissions from the global stream network, with a single respiration pulse potentially increasing emission by 0.2–0.7%. As the spatial and temporal extent of IRES increases globally, our results highlight the importance of recognizing the influence of wetting-drying cycles on respiration and CO2 emissions in stream networks.

Published
2019

35. Vacuum physiotherapy after first stage buccal mucosa graft (BMG) urethroplasty in proximal hypospadias: A feasibility, safety and protocol compliance assessment study

Author

Bandini, M., primary, Sekulovic, S., additional, Spiridonescu, B., additional, Dangi, A.D., additional, Krishnappa, P., additional, Stanojevic, N., additional, Pesic, V., additional, Slavkovic, M., additional, Briganti, A., additional, Salonia, A., additional, Montorsi, F., additional, and Djinovic, R., additional

Published
2019
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36. The effect of annual hospital volume on perioperative outcomes after urethroplasty

Author

Bandini, M., primary, Djinovic, R., additional, Montorsi, F., additional, Sekulovic, S., additional, Spiridonescu, B., additional, Dangi, A.D., additional, Krishnappa, P., additional, Stanojevic, N., additional, Pesic, V., additional, Slavkovic, M., additional, Sansalone, S., additional, Salonia, A., additional, Briganti, A., additional, and Karakiewicz, P., additional

Published
2019
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38. A global analysis of terrestrial plant litter dynamics in non-perennial waterways

Author

Datry, T., Foulquier, A., Corti, R., von Schiller, D., Tockner, K., Mendoza-Lera, C., Clement, J. C., Gessner, M. O., Moleon, M., Stubbington, R., Gucker, B., Albarino, R., Allen, D. C., Altermatt, F., Arce, M. I., Arnon, S., Banas, D., Banegas-Medina, A., Beller, E., Blanchette, M. L., Blanco-Libreros, J. F., Blessing, J. J., Boechat, I. G., Boersma, K. S., Bogan, M. T., Bonada, N., Bond, N. R., Brintrup Barria, K. C., Bruder, A., Burrows, R. M., Cancellario, T., Canhoto, C., Carlson, S. M., Cauvy-Fraunie, S., Cid, N., Danger, M., Terra, Bianca de Freitas, De Girolamo, A. M., de La Barra, Evans, del Campo, R., Diaz-Villanueva, V. D., Dyer, F., Elosegi, A., Faye, E., Febria, C., Four, B., Gafny, S., Ghate, S. D., Gomez, R., Gómez-Gener, Lluís, Graca, M. A. S., Guareschi, S., Hoppeler, F., Hwan, J. L., Jones, J. , I, Kubheka, S., Laini, A., Langhans, S. D., Leigh, C., Little, C. J., Lorenz, S., Marshall, J. C., Martin, E., McIntosh, A. R., Meyer, E. , I, Milisa, M., Mlambo, M. C., Morais, M., Moya, N., Negus, P. M., Niyogi, D. K., Papatheodoulou, A., Pardo, I, Paril, P., Pauls, S. U., Pesic, V, Polasek, M., Robinson, C. T., Rodriguez-Lozano, P., Rolls, R. J., Sanchez-Montoya, M. M., Savic, A., Shumilova, O., Sridhar, K. R., Steward, A. L., Storey, R., Taleb, A., Uzan, A., Vander Vorste, Ross, Waltham, N. J., Woelfle-Erskine, C., Zak, D., Zarfl, C., Zoppini, A., Datry, T., Foulquier, A., Corti, R., von Schiller, D., Tockner, K., Mendoza-Lera, C., Clement, J. C., Gessner, M. O., Moleon, M., Stubbington, R., Gucker, B., Albarino, R., Allen, D. C., Altermatt, F., Arce, M. I., Arnon, S., Banas, D., Banegas-Medina, A., Beller, E., Blanchette, M. L., Blanco-Libreros, J. F., Blessing, J. J., Boechat, I. G., Boersma, K. S., Bogan, M. T., Bonada, N., Bond, N. R., Brintrup Barria, K. C., Bruder, A., Burrows, R. M., Cancellario, T., Canhoto, C., Carlson, S. M., Cauvy-Fraunie, S., Cid, N., Danger, M., Terra, Bianca de Freitas, De Girolamo, A. M., de La Barra, Evans, del Campo, R., Diaz-Villanueva, V. D., Dyer, F., Elosegi, A., Faye, E., Febria, C., Four, B., Gafny, S., Ghate, S. D., Gomez, R., Gómez-Gener, Lluís, Graca, M. A. S., Guareschi, S., Hoppeler, F., Hwan, J. L., Jones, J. , I, Kubheka, S., Laini, A., Langhans, S. D., Leigh, C., Little, C. J., Lorenz, S., Marshall, J. C., Martin, E., McIntosh, A. R., Meyer, E. , I, Milisa, M., Mlambo, M. C., Morais, M., Moya, N., Negus, P. M., Niyogi, D. K., Papatheodoulou, A., Pardo, I, Paril, P., Pauls, S. U., Pesic, V, Polasek, M., Robinson, C. T., Rodriguez-Lozano, P., Rolls, R. J., Sanchez-Montoya, M. M., Savic, A., Shumilova, O., Sridhar, K. R., Steward, A. L., Storey, R., Taleb, A., Uzan, A., Vander Vorste, Ross, Waltham, N. J., Woelfle-Erskine, C., Zak, D., Zarfl, C., and Zoppini, A.

Abstract

Perennial rivers and streams make a disproportionate contribution to global carbon (C) cycling. However, the contribution of intermittent rivers and ephemeral streams (IRES), which sometimes cease to flow and can dry completely, is largely ignored although they represent over half the global river network. Substantial amounts of terrestrial plant litter (TPL) accumulate in dry riverbeds and, upon rewetting, this material can undergo rapid microbial processing. We present the results of a global research collaboration that collected and analysed TPL from 212 dry riverbeds across major environmental gradients and climate zones. We assessed litter decomposability by quantifying the litter carbon-to-nitrogen ratio and oxygen (O2) consumption in standardized assays and estimated the potential short-term CO2 emissions during rewetting events. Aridity, cover of riparian vegetation, channel width and dry-phase duration explained most variability in the quantity and decomposability of plant litter in IRES. Our estimates indicate that a single pulse of CO2 emission upon litter rewetting contributes up to 10% of the daily CO2 emission from perennial rivers and stream, particularly in temperate climates. This indicates that the contributions of IRES should be included in global C-cycling assessments.

Published
2018
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39. Increasing understanding of alien species through citizen science (Alien-CSI)

Author

Roy, H.E., Groom, Q., Adriaens, T., Agnello, G., Antic, M., Archambeau, A.-S., Bacher, S., Bonn, Aletta, Brown, P., Brundu, G., Claramunt López, B., Cleary, M., Cogălniceanu, D., de Groot, M., De Sousa, T., Deidun, A., Essl, F., Fišer Pečnikar, Ž., Gazda, A., Gervasini, E., Glavendekic, M.M., Gigot, G., Jelaska, S.D., Jeschke, J.M., Kaminski, D., Karachle, P.K., Komives, T., Lapin, K., Lucy, F., Marchante, E., Marisavljevic, D., Marja, R., Martín-Torrijos, L., Martinou, A., Matosevic, D., Mifsud, C.M., Motiejūnaitė, J., Ojaveer, H., Pasalic, N., Pekárik, L., Per, E., Pergl, J., Pesic, V., Pocock, M., Reino, L., Ries, C., Rozylowicz, L., Schade, S., Sigurdsson, S., Steinitz, O., Stern, N., Teofilovski, A., Thorsson, J., Tomov, R., Tricarico, E., Trichkova, T., Tsiamis, K., van Valkenburg, J., Vella, N., Verbrugge, L., Vétek, L., Villaverde, C., Witzell, J., Zenetos, A., Cardoso, A.C., Roy, H.E., Groom, Q., Adriaens, T., Agnello, G., Antic, M., Archambeau, A.-S., Bacher, S., Bonn, Aletta, Brown, P., Brundu, G., Claramunt López, B., Cleary, M., Cogălniceanu, D., de Groot, M., De Sousa, T., Deidun, A., Essl, F., Fišer Pečnikar, Ž., Gazda, A., Gervasini, E., Glavendekic, M.M., Gigot, G., Jelaska, S.D., Jeschke, J.M., Kaminski, D., Karachle, P.K., Komives, T., Lapin, K., Lucy, F., Marchante, E., Marisavljevic, D., Marja, R., Martín-Torrijos, L., Martinou, A., Matosevic, D., Mifsud, C.M., Motiejūnaitė, J., Ojaveer, H., Pasalic, N., Pekárik, L., Per, E., Pergl, J., Pesic, V., Pocock, M., Reino, L., Ries, C., Rozylowicz, L., Schade, S., Sigurdsson, S., Steinitz, O., Stern, N., Teofilovski, A., Thorsson, J., Tomov, R., Tricarico, E., Trichkova, T., Tsiamis, K., van Valkenburg, J., Vella, N., Verbrugge, L., Vétek, L., Villaverde, C., Witzell, J., Zenetos, A., and Cardoso, A.C.

Abstract

There is no sign of saturation in accumulation of alien species (AS) introductions worldwide, additionally the rate of spread for some species has also been shown to be increasing. However, the challenges of gathering information on AS are recognized. Recent developments in citizen science (CS) provide an opportunity to improve data flow and knowledge on AS while ensuring effective and high quality societal engagement with the issue of IAS (Invasive Alien Species). Advances in technology, particularly on-line recording and smartphone apps, along with the development of social media, have revolutionized CS and increased connectivity while new and innovative analysis techniques are emerging to ensure appropriate management, visualization, interpretation and use and sharing of the data. In early July 2018 we launched a European CO-operation in Science and Technology (COST) Action to address multidisciplinary research questions in relation to developing and implementing CS, advancing scientific understanding of AS dynamics while informing decision-making specifically implementation of technical requirements of relevant legislation such as the EU Regulation 1143/2014 on IAS. It will also support the EU biodiversity goals and embedding science within society. The Action will explore and document approaches to establishing a European-wide CS AS network. It will embrace relevant innovations for data gathering and reporting to support the implementation of monitoring and surveillance measures, while ensuring benefits for society and citizens, through an AS CS European network. The Action will, therefore, increase levels of participation and quality of engagement with current CS initiatives, ensuring and evaluating educational value, and improve the value outcomes for potential users including citizens, scientists, alien species managers, policy-makers, local authorities, industry and other stakeholders.

Published
2018

40. Environmental issues of modern production technologies

Author

Predrag Jankovic, Pesic, V., Rancic, S., and Radosevic, O.

Subjects
manufacturing processes, sustainable agricultural production, abrasive water jet cutting, clean production technologies
Abstract

The problem of cutting difficult-to-machine materials used in the aerospace industry, aircraft industry and automobile industry, led to the development and application of today the most attractive technology for contour cutting - Abrasive Water Jet Cutting. Besides high accuracy, flexibility, and low material loss, abrasive water jet cutting can be described as 'ecological' or 'clean' technology over inert and abundant main processing substances (water, sand) and absence of airborne dust particles, smoke and fumes. The recycling of the abrasives makes the process more economical (savings of 50% in operating costs), effective and environmentally friendly (reduction in waste material). It is widely understood that modern, intensive agricultural production is based on the exploitation of natural, primarily biological, chemical and physical resources. A model indicator of environmental sustainability in rural areas and agricultural production in the form of the index is given. It contains 10 main indicators, where each indicator contains 10 variables. The indicators on which the index is calculated are: soil quality; water quality; air quality; external effects (geographic, climatic, edaphic, and others); the need for growing plant and animal products; biological efficiency; dependence on external sources of energy (biofuel); human participation component (inclination to work, training for work in rural areas); social aspects and economic impacts. The purpose of this article is to provide an overview to the environmental impact of production technologies in area of manufacturing and agricultural production.

Published
2017

45. A redescription of Protolimnesia longa Besch, 1963 from Bolivia, with the first description of the female (Acari: Hydrachnidia: Limnesiidae)

Author

Pesic, V., Smit, H., Datry, Thibault, UNIVERSITY OF MONTENEGRO PODGORICA MNE, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), NATURALIS BIODIVERSITY CENTER LEIDEN NLD, Milieux aquatiques, écologie et pollutions (UR MALY), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), University of Montenegro (UCG), Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Université de Caen Normandie (UNICAEN), and Normandie Université (NU)-Normandie Université (NU)

Subjects
Arthropoda, Arachnida, [SDE]Environmental Sciences, Animalia, Trombidiformes, Limnesiidae, Biodiversity, Taxonomy
Abstract

International audience; The water mite genus Protolimnesia Lundblad, 1927 is distributed in South and Central America, the Caribbean (Haiti) and southern parts of the USA (Goldschmidt 2004). One odd record is known from Oman (Smit & Pe¨ić 2010). In addition to the nominate subgenus, the genus also includes Protolimnesella Cook, 1980 and Voldroguella Cook, 1981, typical inhabitants of interstitial habitats (Goldschmidt 2004). The nominate subgenus includes seven species and subspecies, most of them are stream-dwellers, but Protolimnesia longa Besch, 1963 appears to be a characteristic inhabitant of the interstitial of intermittent streams. This species was described by Besch (1963) based on a single male from the interstitial of a dry stream at 1200 m altitude in Argentina. Since then, no further records of this species were published. In the original description Besch (1963) illustrated only the ventral and dorsal side. Smit (2002) and Goldschmidt (2004) re-examined the holotype of P. longa deposited in the Viets Collection (SMF) and provided illustrations of the palp and ejaculatory complex, respectively. However, some important characteristics are neither given in the original description nor are visible in the type material. Smit (2002) mentioned that both fourth legs in the holotype slide are positioned in such a way that examination of the claws of IV-L-6 is not possible, Goldschmidt (2004) stated that the ejaculatory complex in the type is mounted laterally and most probably squashed.

Published
2016
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