Die Knochengeschwülste

Hellner, H

doi:10.1007/978-3-642-49675-2

Cited by 103 publications

(10 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…2.49 Å) [26] and with the Ni-Ga binaries, which range from approximately 2.47 to 2.61 Å. [27][28][29][30][31] The NiGa 6 bicapped cubes (Figure 3c) are very similar to the bicapped MGa 6 (M = Ga or transition metal) cubes found in Ce 2 NiGa 10 , [14] Ln 3 NiGa 10 (Ln = Ce-Nd), [32] [34] YNiGa 3 Ge, [19] Ce 2 NiAl 6-x Ge 4-y , [22] YbGa 5 , [35] and Ce 2 Ag 1-x Ga 10-y . [6] The puckered Ni x Ga 2 square nets, which are approximately 43 % occupied by Ni for Ln = Tb-Ho and approximately 32 % occupied by Ni for Ln = Er, have Ni2-Ga interatomic distances that range from approximately 1.63 to 2.68 Å (Figure 3d).…”

Section: Structure Of α-Lnnigamentioning

confidence: 99%

A Tale of Two Polymorphs – Growth and Characterization of α‐LnNiGa₄ (Ln = Y, Gd–Yb) and β‐LnNi_1–xGa₄ (Ln = Tb–Er)

et al. 2011

View full text Add to dashboard Cite

The single crystals of two polymorphs of LnNiGa 4 , namely, the orthorhombic α-LnNiGa 4 (Ln = Y, Gd-Yb) and, a new polymorph, the tetragonal β-LnNi 1-x Ga 4 (Ln = Tb-Er), were successfully grown by using the self-flux method. α-LnNiGa 4 (Ln = Y, Gd-Yb) is isostructural to YNiAl 4 and can be described as an edge-sharing polyhedral of Ni@Ga 7 Ln 2 (Ln = Y, Gd-Yb) along the ac-plane that is sandwiched between the square nets of the Ga atoms along the b-axis. The structure of β-LnNi 1-x Ga 4 (Ln = Tb-Er) is a distorted variant of the

show abstract

Section: Structure Of α-Lnnigamentioning

confidence: 99%

A Tale of Two Polymorphs – Growth and Characterization of α‐LnNiGa₄ (Ln = Y, Gd–Yb) and β‐LnNi_1–xGa₄ (Ln = Tb–Er)

et al. 2011

View full text Add to dashboard Cite

show abstract

“…Umgekehrt gibt es prim~ir maligne Riesenzelltumoren, die nicht metastasieren. Die prim~ire Malignitiitsrate liegt zwischen 10-30 % [8,17].…”

Section: Riesenzelltumorenunclassified

“…Friiher wurde zwischen der juvenilen Knochencyste und dem Riesenzelltumor, besonders wegen des gemeinsamen Vorkommens mehrkerniger Riesenzellen, eine gewisse pathogenetische Beziehung vermutet [5,7,8]. Heute hat es sich allgemein durchgesetzt, dab es sich bei beiden Erkrankungen aufgrund klinischer, r6ntgenologischer und pathohistologischer Merkmale um zwei voneinander unabh~ingige, selbst~indige Knochenprozesse handelt [9,11].…”

Section: Diskussionunclassified

See 1 more Smart Citation

Juvenile Knochencysten und Riesenzelltumoren

Rumpf

Müller

Steinmeyer³

et al. 1975

Langenbecks Arch Chiv

View full text Add to dashboard Cite

The attempt is made to demonstrate clinical, radiographical, morphological differences between juvenile bone cyst and giant cell tumor as shown in the patients of the Surgical Department of the University of Dusseldorf and literature. It is possible to derive inferences in differential diagnosis from the age of the patient, clinical course and statistically most frequent locations. Radiographically the bone cyst distinguishes itself by its central localisation in the metaphysis, where as the giant cell tumor has an excentric position in the epiphysis with a tendency of extending into the metaphysis. Giant cells occur in both diseases. While the bone cyst is an tumor-like lesion, the giant cell tumor is a real neoplasia. The therapeutical procedure varies according to different prognostical significance of the two diseases. Therefore, it is necessary to draw an exact line of demarcation between the comparetively harmless juvenile bone cyst and the semimalign giant cell tumor.

show abstract

“…In 1947 Hellner and Laves reported on the bodycentred cubic phases NiGa 4 (a 8.41 ) and PdIn 3 (a 9.42 ), for which they proposed a g-brass structure with defects, [13] and in a subsequent publication Hellner confirmed the existence of the phase NiGa 4 . [14] More recently Feschotte and Eggimann reinvestigated the Ni/Ga system [15] and obtained for NiGa 4 a lattice parameter a 8.424 , but could not determine the composition of the phase. In an attempt to solve the structure of NiGa 4 , Jingkui and Sishen distributed 8 Ni and 32 Ga atoms on four different crystallographic sites in the space group I 23 (refined lattice parameter a 8.4295 ).…”

mentioning

confidence: 99%

Compounds with the Ir3Ge7 Structure Type: Interpenetrating Frameworks with Flexible Bonding Properties

et al. 1998

View full text Add to dashboard Cite

Reexamination of the E-rich (E Ga, In) area of the binary systems Ni/Ga and Pd/In yielded the stoichiometric compounds Ni 3 Ga 7 and Pd 3 In 7 with the Ir 3 Ge 7 structure type. The structure of the compounds was determined by single-crystal X-ray diffraction methods (space group Im3 Å m; Ni 3 Ga 7 : a 8.4285(6) , Pd 3 In 7 : a 9.4323(2) ; Z 4). The existence of the nonstoichiometric phases NiGa 4 and PdIn 3 reported earlier could not be confirmed and it is assumed that Ni 3 Ga 7 and Pd 3 In 7 represent the most E-rich compounds in their respective systems. The remarkable Ir 3 Ge 7 structure consists of two equivalent interpenetrating frameworks built from cubes and square antiprisms. Its chemical bonding motifs were analysed by ab initio linear muffin-tin orbital (LMTO) and semiempirical tight-binding extended Hückel band-structure calculations. It was found that the valence electron concentration plays a crucial role in the structural stability of the Ir 3 Ge 7 type and that, in the case of strong dp bonding between transition metal and E component, semiconducting representatives can occur. We suggest that the width of the band gaps is tunable by the choice of constituent elements in ternary and quarternary compounds with the Ir 3 Ge 7 structure.

show abstract

Die Knochengeschwülste

Cited by 103 publications

References 0 publications

A Tale of Two Polymorphs – Growth and Characterization of α‐LnNiGa₄ (Ln = Y, Gd–Yb) and β‐LnNi_1–xGa₄ (Ln = Tb–Er)

A Tale of Two Polymorphs – Growth and Characterization of α‐LnNiGa₄ (Ln = Y, Gd–Yb) and β‐LnNi_1–xGa₄ (Ln = Tb–Er)

Juvenile Knochencysten und Riesenzelltumoren

Compounds with the Ir3Ge7 Structure Type: Interpenetrating Frameworks with Flexible Bonding Properties

Contact Info

Product

Resources

About

Die Knochengeschwülste

Cited by 103 publications

References 0 publications

A Tale of Two Polymorphs – Growth and Characterization of α‐LnNiGa4 (Ln = Y, Gd–Yb) and β‐LnNi1–xGa4 (Ln = Tb–Er)

A Tale of Two Polymorphs – Growth and Characterization of α‐LnNiGa4 (Ln = Y, Gd–Yb) and β‐LnNi1–xGa4 (Ln = Tb–Er)

Juvenile Knochencysten und Riesenzelltumoren

Compounds with the Ir3Ge7 Structure Type: Interpenetrating Frameworks with Flexible Bonding Properties

Contact Info

Product

Resources

About

A Tale of Two Polymorphs – Growth and Characterization of α‐LnNiGa₄ (Ln = Y, Gd–Yb) and β‐LnNi_1–xGa₄ (Ln = Tb–Er)

A Tale of Two Polymorphs – Growth and Characterization of α‐LnNiGa₄ (Ln = Y, Gd–Yb) and β‐LnNi_1–xGa₄ (Ln = Tb–Er)