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105. Freeze-drying wet digital prints: An option for salvage?

Author

N Schempp and M C Jürgens

Subjects
History, Surface coating, Freeze-drying, Materials science, Metallurgy, Significant difference, Forensic engineering, Computer Science Applications, Education
Abstract

On the occasion of the collapse of the Historical Archive of the City of Cologne in March 2009 and the ensuing salvage effort, questions were raised about the use of freeze-drying for soaked digital prints, a technique that has not yet been evaluated for these materials. This study examines the effects of immersion, air-drying, drying in a blotter stack, freezing and freeze-drying on 35 samples of major digital printing processes. The samples were examined visually before, during and after testing; evaluation of the results was qualitative. Results show that some prints were already damaged by immersion alone (e.g. bleeding inks and soluble coatings) to the extent that the subsequent choice of drying method made no significant difference any more. For those samples that did survive immersion, air-drying proved to be crucial for water-sensitive prints, since any contact with the wet surface caused serious damage. Less water-sensitive prints showed no damage throughout the entire procedure, regardless of drying method. Some prints on coated media suffered from minor surface disruption up to total delamination of the surface coating due to the formation of ice crystals during shock-freezing. With few exceptions, freeze-drying did not cause additional damage to any of the prints that hadn't already been damaged by freezing. It became clear that an understanding of the process and materials is important for choosing an appropriate drying method.

Published
2010
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106. [Ilisarov ring fixation and its technical application]

Author

C, Jürgens, H G, Schmidt, U, Schümann, and B, Fink

Subjects
Fracture Healing, Postoperative Care, External Fixators, Humans, Equipment Design, Biomechanical Phenomena, Bone Wires
Abstract

The Ilisarov ring fixator is an extremely versatile external fixation device. There is a wide range of indications for its use, e.g. fractures, pseudarthroses and non-unions, large defects, deformities and limb shortening. The device consists of rings or half-rings, which are connected to each other by threaded rods or plates and to the bone by wires under tension. This design allows neutral fixation, compression or distraction of the bone fragments. Because of its low axial stiffness at low loads and increased stiffness at higher loads, this fixator promotes osteogenesis and reduces strain on the tissues in functional treatment. Surgical intervention for its application is minimally invasive. This is a useful addition to the orthopaedic surgeon's armamentarium, providing proper attention is paid to preoperative planning, the principle rules of frame design and wire insertion technique, and postoperative management.

Published
1992

107. [Treatment of chronic joint malposition]

Author

J H, Schultz, C, Jürgens, and G, Ortel

Subjects
Adult, Fracture Healing, Male, Postoperative Care, Reoperation, External Fixators, Joint Dislocations, Knee Injuries, Radiography, Tibial Fractures, Fracture Fixation, Internal, Postoperative Complications, Splints, Bone Lengthening, Humans, Female, Ankle Injuries, Range of Motion, Articular, Femoral Fractures
Abstract

We report three cases of chronically dislocated joints of the lower extremities that were treated by the Ilisarov method. As the results show, it is possible to reduce such dislocations step by step, causing less operative trauma.

Published
1992

108. [Experience with uretero-neocystostomy in 338 kidney transplantations]

Author

L, Rohrmoser, B, Ulshöfer, H, Feiber, C, Jürgens, and G, Rodeck

Subjects
Vesico-Ureteral Reflux, Postoperative Complications, Anastomosis, Surgical, Suture Techniques, Urinary Bladder, Humans, Ureter, Kidney Transplantation, Ureteral Obstruction
Abstract

In 338 consecutive human kidney transplants since 1972 uretero-neocystostomy was performed in a typical manner. The technique is a modification of Leadbetter's ureterosigmoid anastomosis and it is used for all cases of ureteral reimplantation at our institution. The rate of operative complications belonging to the urinary tract is 4.8%. In 29% out of 31 reexamined patients a vesico-ureteral reflux to the transplant appeared. We believe that the demonstrated method is useful for reconstruction of the urinary tract in renal transplants.

Published
1991

109. [Interventional sonography after kidney transplantation]

Author

H, Feiber, L, Rohrmoser, C, Jürgens, and T, Müller

Subjects
Postoperative Complications, Urinary Fistula, Lymphocele, Humans, Urography, Kidney Function Tests, Kidney Transplantation, Nephrostomy, Percutaneous, Ultrasonography, Ureteral Obstruction
Abstract

In cases of urinary fistulae as well as lymphoceles the only ultrasound-guided percutaneous nephrostomy has led to a good result. In cases of ureterostenosis and distal fistulae the renal function could be preserved by percutaneous nephrostomy. The anterograde pyelography was exact in demonstrating localization of the stenosis which led to a better operative procedure. The interventional ultrasound therefore represents an important option in the treatment of operative complications after kidney transplantation.

Published
1991

110. [Development of a resorbable temporary skin replacement for large surface burn wounds]

Author

C, Jürgens, D, Wolter, H, Kricheldorf, and H R, Kortmann

Subjects
Wound Healing, Polyesters, Animals, Humans, Occlusive Dressings, Burns
Abstract

Most of the temporary dressing used in the treatment of extensive burn wounds pose immunological permeability, or transparency problems. All available dressings must be removed, and removal is often painful and traumatic. The development of biodegradable wound dressings made of copolymers of lactic and caproic acid was part of a research program (BMFT/FRG). Four parameters determine the properties of the copolymers: Purity, mole ratio of monomers, molecular weight, and sequence. Films of these copolymers can be made transparent, permeable, and flexible. They are degraded by hydrolysis and the normal ways of metabolism.

Published
1991

111. [Conservative treatment of spinal and pelvic fractures]

Author

C, Jürgens, D, Wolter, and H R, Kortmann

Subjects
Adult, Male, Radiography, Fractures, Bone, Time Factors, Fracture Fixation, Traction, Humans, Spinal Fractures, Female, Pelvic Bones, Follow-Up Studies
Published
1990

113. Dissemination of precision farming in Germany: acceptance, adoption, obstacles, knowledge transfer and training activities.

Author

M. Reichardt, C. Jürgens, U. Klöble, J. Hüter, and K. Moser

Subjects
*PRECISION farming, *KNOWLEDGE transfer, *AGRICULTURAL exhibitions, *DATA analysis, *FARMERS, *GLOBAL Positioning System
Abstract

Abstract  The adoption of precision farming (PF) was studied on the basis of personal interviews conducted at several agricultural exhibitions in Germany. Between 6.65% and 11% of the interviewed farmers used PF. The majority used data collection techniques such as GPS-based area measurement and soil sampling rather than variable rate application techniques such as site-specific sowing and fertilising. Roughly half the farmers interviewed knew about PF. About 7–10% of them intended to start using PF in the future. The results indicated that a large number of farmers did not even know what PF meant. In order to get more insight into this situation, several interviews were conducted with farmers already using PF techniques. A further study in 2005 of PF education in Germany indicated that, especially at vocational and technical schools, the subject was only covered to a small extent although the aim was to give a better coverage in future. At higher education levels, such as at universities and technical colleges, the teaching of PF was clearly better established. In order to promote awareness of PF among farmers, information and teaching materials adapted to the relevant educational levels were developed and tried out at training events. The main topics addressed were parallel tracking systems, site-specific nitrogen fertilising, yield mapping in grain production and the use of PDAs in crop farming. Finally, preliminary survey results are presented showing how knowledge about PF can best lead to its adoption and transfer into daily practice. [ABSTRACT FROM AUTHOR]

Published
2009
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114. Pseudarthrosen.

Author

J. Meiners, U. Gerlach, S. Mägerlein, C. Jürgens, and M. Faschingbauer

Subjects
TREATMENT of fractures, BONE surgery, SEPSIS, TARGETED drug delivery, ASEPTIC & antiseptic surgery
Abstract

Zusammenfassung  Pseudarthrosen sind Frakturheilungsstörungen nach konservativer oder operativer Frakturbehandlung, die länger als 6 Monate bestehen. Entscheidend für die zielgerichtete Therapie ist die Einteilung in aseptische und septische bzw. atrophe, oligotrophe oder hypertrophe Pseudarthrosen. Die operativen Prinzipien sind Vitalisierung atropher Knochenfragmente, stabilisierende Reosteosynthese bei Instabilität und die Überführung einer septischen in eine beruhigte oder aseptische Pseudarthrose. [ABSTRACT FROM AUTHOR]

Published
2009
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115. Adoption and future perspective of precision farming in Germany: results of several surveys among different agricultural target groups.

Author

M. Reichardt and C. Jürgens

Subjects
*AGRICULTURE, *LIFE sciences, *INDUSTRIAL arts, *BOTANY, *FARM life
Abstract

Abstract  The adoption of Precision Farming (PF) in Germany has been studied by several mail surveys, telephone interviews and personal interviews with farmers, advisors, teachers and representatives of the PF industry. The intention was to monitor how PF techniques have entered the German market over the years and geographic location. The farmers were interviewed about their experiences with PF technology and their attitudes and barriers towards it. Those farmers who had not yet used PF technologies were asked for the reason and on which condition they would probably start with PF. Although the number of PF users slightly increased between 2001 and 2006, the results of all the surveys indicate that there are still various barriers regarding PF. Those farmers who had already used some PF technologies struggled with many problems at the beginning, but after overcoming these problems, they were generally content with the introduction of PF technologies. However, the majority of the interviewed farmers hesitated to introduce PF techniques mainly because of the high costs of the technology. Most of the interviewed teachers at vocational and technical schools stated that PF was not yet a subject in courses. The interviews with the advisors show that most of them do not offer any advisory service in the field of PF. Finally, the results of the interviews with representatives of the agricultural engineering industry confirm the statements of the other surveys. [ABSTRACT FROM AUTHOR]

Published
2009
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116. Trauma des Unterschenkels und des oberen Sprunggelenks.

Author

S. Fuchs, S. Wallstabe, U. Gerlach, and C. Jürgens

Subjects
TIBIA, BONE injuries, ANKLE injuries, HEALTH outcome assessment, ORTHOPEDIC implants, WOUND healing
Abstract

Zusammenfassung  Verletzungen des Unterschenkels und des oberen Sprunggelenks (OSG) müssen insbesondere in Hinsicht auf das Outcome einer exakten Diagnostik und Analyse unterzogen werden. Sie bilden die Grundlage für die entsprechende Therapie und somit die Vermeidung von Komplikationen. Bei der Versorgung sind der richtige Zugangsweg, die Wahl des richtigen Implantats und die richtige Platzierung unbedingte Voraussetzung zur Minimierung von Problemen. Ebenfalls entscheidend sind beim Eintritt von Komplikationen die Kompetenz und die Bereitschaft, diese zu erkennen und zu therapieren. [ABSTRACT FROM AUTHOR]

Published
2009
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117. Ellengelenknahe Unterarmfrakturen.

Author

M. Faschingbauer, J. Meiners, S. Wallstabe, K. Seide, and C. Jürgens

Subjects
ELBOW fractures, FUNNY bone, FRACTURE fixation, SURGICAL excision, ELBOW surgery, CLASSIFICATION, BONE surgery, BONE fractures
Abstract

Zusammenfassung  Ellengelenkfrakturen sind relativ selten und machen etwa 7% aller Frakturen aus. Bei Beschränkung auf den proximalen Unterarm betreffen etwa 38% aller Ellengelenkfrakturen das Olekranon und 20–30% das Radiusköpfchen. Bei den ellengelenknahen Unterarmfrakturen hat sich die Einteilung nach AO nicht durchgesetzt. Hier finden v. a. Klassifikationen Anwendungen, die auch eine therapeutische Konsequenz nach sich ziehen. Bei der Einteilung der Olekranonfraktur verwenden wir die Klassifikation nach Schatzker, die den Frakturverlauf und die Anzahl der Knochenfragmente berücksichtigt und somit die Art der Osteosynthese vorgibt. Bei der Radiusköpfchenfraktur hat sich die Klassifikation nach Mason durchgesetzt. Hier werden je nach Typ das konservative Vorgehen, das operative Verfahren oder eine Resektion empfohlen. Die Frakturen des Processus coronoideus werden nach Regan und Morrey eingeteilt. Dabei wird über die Größe des Fragments indirekt auf die Instabilität des Gelenks geschlossen und dementsprechend das operative Vorgehen empfohlen. Neben der Monteggia-Verletzung wird als Sonderformen noch auf die Essex-Lopresti-Verletzung und die terrible triade of the elbow eingegangen. [ABSTRACT FROM AUTHOR]

Published
2007
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118. Amputationen und Prothesenversorgung der unteren Extremitäten.

Author

J. Gille, H. Kranz, W. Ulsaß, C. Jürgens, and K. Seide

Abstract

Copyright of Trauma und Berufskrankheit is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2006

119. Distale Tibiafrakturen.

Author

M. E. Wenzl, 3</SUP>, S. Fuchs, D. Wolter, and C. Jürgens

Abstract

Abstract From September 1997 to December 2000, 25 fractures and 20 psaeudarthroses in 44 patients were treated by fixed-angle plating; in 92% of these cases a minimally invasive tunneling technique was used. Fifteen fractures had initially been stabilized by means of an external fixator, the internal fixator being implanted as a second step once consolidation of the soft tissue had been achieved. Revision of a pseudarthrosis was always combined with autologous bone grafting. Follow-up examinations were possible in all 44 patients after an average of 22 (range 9–48) months, and all fractures and pseudarthroses were found to have healed. No secondary loss of reduction or implant failure was seen. In 4 patients deep infection at the plate occurred, but was successfully treated by early implant removal. Full weight-bearing was possible after a mean of 15.2 (range 8–26) weeks for the fracture patients and of 17.1 (mean; range 8–52) weeks for the pseudarthrosis patients. These results show that the multidirectional fixed-angle internal plate fixator implanted by a minimally invasive technique has proved very reliable in the treatment of fractures and pseudarthroses of the distal tibia. [ABSTRACT FROM AUTHOR]

Published
2005

120. Klinische Erfahrungen mit dem computergesteuerten Hexapodfixateur.

Author

K. Seide, 2</SUP>, U. Schümann, and C. Jürgens

Abstract

Abstract Hexapod robot kinematics have been exploited to develop an external fixator that is adjustable in all six spatial degrees of freedom. As with other robot systems, bones can be moved with a high degree of precision. A manually controlled fixator has so far been used with appropriate software in 127 patients. Secondary fracture reduction was performed successively, if necessary over several days, without causing pain to the patients. Ilizarov’s system for combined correction and distraction was especially useful. Electric drive motors were used in 4 patients. A fixator featuring load measurement capabilities was also constructed and was used as the basis for an ‘intelligent’ fixator, which will allow automatically controlled fracture and deformity treatment in the future. [ABSTRACT FROM AUTHOR]

Published
2005

121. Fersenbeinosteosynthese mit intraoperativer 3D-Röntgenkontrolle.

Author

T. Porté, 2</SUP>, N. Haustedt, C. Queitsch, and C. Jürgens

Abstract

Abstract In recent years, operative management of intra-articular calcaneus fractures has gained increasing momentum. Precise anatomical reduction with reconstruction of tuber angle, tuber length and, especially, subtalar joint are required. The mobile Siremobil Iso-C3D is an important aid to the accurate reconstruction of the anatomical structures; dislocation persisting after reposition can be detected and corrected at a very early stage. From October 2002 to May 2004, 49 patients with fractures of the calcaneus underwent internal fixation of intra-articular fractures of the calcaneus with a fixed-angle titanium plate system with intraoperative 3D imaging. On average, the tuber angle was improved by 16°. In 18 cases, the intraoperative 3D imaging disclosed dislocations, which it was possible to correct. Secondary dislocation of the central fragment did not occur in any of these cases. [ABSTRACT FROM AUTHOR]

Published
2005

122. Erfahrungen mit winkelstabilen Plattensystemen bei periprothetischen Frakturen.

Author

M. Faschingbauer, 2</SUP>, O. Pingen, C. Jürgens, and D. Wolter

Abstract

Abstract In our opinion implants with multidirectional blocked screws are the ideal treatment for periprosthetic fractures even in the elderly and critically ill patient. The operation is not time-consuming and the blood loss is relatively low. In osteoporotic bone those fixateur intern systems with multidirectional screws give a high stability so that we rapidly achieve joint motion. With the possibility of fixing screws in various angles and the possibility of contouring the plate to the bone we even achieve a rigid fixation in the presence of a voluminous prostheses. [ABSTRACT FROM AUTHOR]

Published
2005

123. Topkin ®-Eine resorbierbare Folie aus Lactid-Caprolacton.

Author

T. Porté, M. Faschingbauer, K. Seide, and C. Jürgens

Abstract

Zusammenfassung Die resorbierbare Folie Topkin ® (Fa. Biomet-Merck), welche aus einem Kopolymer aus D,L-Lactid und e-Caprolacton besteht, wurde bei 71 Spalthautentnahmewunden und 42 Spalthautempfängerbezirken als Wundabdeckung eingesetzt. Die Größe der Spalthautentnahmewunden betrug bis zu 900 cm 2, die Ausdehnung der konditionierten Hautweichteildefekte bis 1200 cm 2. Zum Vergleich wurden 29 Empfängerbezirke mit Fettgazeverbänden versorgt. Die Schmerzhaftigkeit der Behandlung wurde auf einer visuellen Analogskala (0?100) gemessen und die Zeitdauer für die Verbandswechsel registriert. Bei den Spalthautentnahmewunden kam es zu 2 Komplikationen (Nachblutung, lokale Infektion). Im Bereich der Spalthautempfängerbezirke traten in 5 Fällen lokale Komplikationen auf (1 überschießende Granulation, 2 verbliebene Restdefekte, 1 lokaler Infekt sowie 1 Schorfbildung). Bei 29 Patienten, deren Spalthautempfängerbezirke mit herkömmlichen Fettgazeverbänden behandelt wurden, wurden 8 Wundheilungsstörungen (4 Restdefekte, 3 oberflächliche Transplantatnekrosen und 1 lokaler Infekt) beobachtet. Bei 4 Wunden wurden deutliche Narbenbildungen beobachtet. Die Zeit der Wundheilung bei der Behandlung mit resorbierbarer Folie und Fettgazeverbänden war nicht signifikant unterschiedlich. Die maximale Schmerzhaftigkeit der Folienbehandlung betrug bei den Spalthautentnahmewunden 10,9, bei den kontaminierten Wunden 2,9. Der pflegerische Aufwand für die Wundbehandlung betrug bei den ersten 20 Patienten 4 min/Tag, nach Ãnderung des Regimes bei den weiteren durchschnittlich 2 min/Tag. [ABSTRACT FROM AUTHOR]

Published
2003

124. EDV-gestützte Auswertung von Begutachtungsdaten zur Qualitätssicherung und -verbesserung.

Author

V. Grosser, K. Seide, H.-W. Kranz, M. Faschingbauer, and C. Jürgens

Abstract

Zusammenfassung Alle Fälle der BGW-Bezirksverwaltungen Hamburg, Delmenhorst und Magdeburg mit Unfalldatum nach dem 1.1.1994, bei welchen von Februar 1999?Juni 2002 Rentenbegutachtungen nach Sprunggelenkfrakturen anstanden, wurden untersucht. Insgesamt wurden 205 Gutachten mit Hilfe von verletzungsspezifischen Erfassungsbögen ausgewertet. Die Verletzungen wurden anhand der Unfallröntgenaufnahmen nach der AO-Klassifikation eingeteilt. Die funktionellen Ergebnisse waren überwiegend gut. Bei Weber-C-Frakturen ergeben sich Ansatzpunkte für eine Verbesserung der Versorgungsqualität, da hier in 13,5% Syndesmosenerweiterungen als präarthrotische Deformität verblieben waren! Nahezu 50% der Patienten mit Sprunggelenkfrakturen ohne Begleitverletzung waren mehr als 3 Monate, etwas über 1/5 der Patienten sogar über 5 Monate arbeitsunfähig. Diese hohe Rate langer Arbeitsunfähigkeitszeiten war im Rahmen der Studie weder medizinisch noch durch besondere berufliche Belastungen begründet, sodass hier u. E. bedeutende Einsparungen möglich sein könnten. Die standardisierte, EDV-gestützte Gutachtenauswertung ist somit geeignet, die Ergebnisqualität im Bereich der gesetzlichen Unfallversicherung festzustellen. Sie ermöglicht einen repräsentativen, Klinik übergreifenden Vergleich der Behandlungsergebnisse als Basis für Maßnahmen der Qualitätssicherung und die Erfassung der Auswirkungen von Maßnahmen zur Steuerung und Überwachung des Heilverfahrens. [ABSTRACT FROM AUTHOR]

Published
2003

125. Doryopteris lorentzii

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1595534%5DMICH-V-1595534_E, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1595534/MICH-V-1595534_E/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1906

126. Hemionitis tomentosa

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1595735%5DMICH-V-1595735, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1595735/MICH-V-1595735/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1905

127. Doryopteris triphylla

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1595590%5DMICH-V-1595590, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1595590/MICH-V-1595590/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1906

128. Doryopteris pedata

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1595558%5DMICH-V-1595558_E, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1595558/MICH-V-1595558_E/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1904

129. Doryopteris nobilis

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1595544%5DMICH-V-1595544, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1595544/MICH-V-1595544/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1904

130. Blechnum auriculatum

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1612810%5DMICH-V-1612810_E, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1612810/MICH-V-1612810_E/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1904

131. Blechnum hastatum

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1612864%5DMICH-V-1612864, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1612864/MICH-V-1612864/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1904

132. Blechnum lanceola

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1612870%5DMICH-V-1612870_E, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1612870/MICH-V-1612870_E/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1904

133. Blechnum laevigatum

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1612866%5DMICH-V-1612866_E, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1612866/MICH-V-1612866_E/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1906

134. Alsophila setosa

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1051291%5DMICH-V-1051291B_E, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1051291/MICH-V-1051291B_E/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1904

135. Asplenium lunulatum

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1604167%5DMICH-V-1604167_E, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1604167/MICH-V-1604167_E/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1906

136. Asplenium douglasii

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1603509%5DMICH-V-1603509, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1603509/MICH-V-1603509/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1906

137. Didymoglossum ovale

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1494397%5DMICH-V-1494397_E_1, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1494397/MICH-V-1494397_E_1/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1905

138. Hymenophyllum hirsutum

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1494747%5DMICH-V-1494747_E, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1494747/MICH-V-1494747_E/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1906

139. Didymoglossum hymenoides

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1494406%5DMICH-V-1494406_E, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1494406/MICH-V-1494406_E/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1905

140. Hymenophyllum hirsutum

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1494746%5DMICH-V-1494746_E, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1494746/MICH-V-1494746_E/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1905

141. Polyphlebium angustatum

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1499286%5DMICH-V-1499286, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1499286/MICH-V-1499286/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1906

142. Hymenophyllum crispum

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1494630%5DMICH-V-1494630, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1494630/MICH-V-1494630/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1906

143. Selaginella microphylla

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1490277%5DMICH-V-1490277_1, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1490277/MICH-V-1490277_1/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1906

144. Selaginella marginata

Author

C. Jürgens & L. Lier, C. Jürgens & L. Lier, C. Jürgens & L. Lier, and C. Jürgens & L. Lier

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1490239%5DMICH-V-1490239, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1490239/MICH-V-1490239/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1906

145. Thelypteris rivularioides

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1202386%5DMICH-V-1202386_E, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1202386/MICH-V-1202386_E/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1904

146. Hymenophyllum crispum

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1494617%5DMICH-V-1494617, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1494617/MICH-V-1494617/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1905

147. Didymoglossum punctatum

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1494519%5DMICH-V-1494519, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1494519/MICH-V-1494519/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1906

148. Anemia simplicior

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1199098%5DMICH-V-1199098_E, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1199098/MICH-V-1199098_E/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1906

149. Lycopodiella alopecuroides var. longipes

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1478306%5DMICH-V-1478306, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1478306/MICH-V-1478306/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1906

150. Lycopodiella alopecuroides

Author

C. Jürgens, C. Jürgens, C. Jürgens, and C. Jürgens

Abstract

Pteridophytes, http://name.umdl.umich.edu/IC-HERB00IC-X-1478295%5DMICH-V-1478295, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1478295/MICH-V-1478295/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1906

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