Supposed trans-Atlantic migration of Heterostegina around the Eocene/Oligocene boundary

According to our hypothesis, Heterostegina ocalana migrated eastward through the previously much narrower Atlantic Ocean around the Eocene/Oligocene boundary. Sporadic populations of H. n. sp., its phylogenetic successor, survived in the western part of the Neotethys until the end of the Rupelian, when they became extinct

Numerical implementation of a functional observability algorithm : a singular value decomposition approach

The paper outlines a numerical algorithm to implement the concept of Functional Observability introduced in [6] based on a Singular Value Decomposition approach. The key feature of this algorithm is in outputting a minimum number of additional linear functions of the state vector when the system is Functional Observable, these additional functions are required to design the smallest possible order functional observer as stated in [6]

Functional observability

A simple theorem for Functional Observability is presented considering the observable and unobservable states of a system based on Kalman decomposition. The proposed theorem is also consistent with two other theorems on Functional Observability which was based on eigen decomposition [6]. The paper also reports a new definition for Functional Observability which is consistent with previously reported definitions and theorems [4], [5], [6]

A Ny-i Tethys nagyforaminiferákra alapozott paleogén sekély bentosz zonációjának továbbfejlesztése és korrelálása = Refinement and correlation of the Paleogene shallow benthic zonation of the Western Tethys based on larger Foraminifera

A Ny-i Tethys paleogén és kora-miocén nagyforaminifera (óriás egysejtű) zonációjának (eddig inkább csak Európára szorítkozó) hatókörét kiterjesztettük Törökországra és az É-Kaukázusra. Ennek során számos lelőhely korát revideáltuk. Az európai együttesektől való kisebb eltéréseket, elsősorban indo-pacifikus befolyást is tapasztaltunk, ami a késő kora-miocén során a legerősebb. Ennek oka a Keleti- és Nyugati-Tethyst összekötő Tethys-átjáró fokozatos összeszűkülése és elsekélyesedése lehetett. Pontosítottuk az európai Orthophragmina-zonációt, és Heterosteginák alapján sikerült a késő középső- és a késő-eocént az eddigieknél részletesebben tagolnunk. Egy É-kaukázusi szelvényben korreláltuk a kora/középső-eocén határ környéki nagyforaminifera-zónákat a plankton beosztásokkal. Terepen sikerült igazolnunk egyes oligo-miocén nagyforaminifera zónák egymásfölöttiségét. | The impact of the Western Tethyan Paleogene and Early Miocene larger foraminiferal (= giant uni-cellulars) zonation (validated mostly for Europe so far) has been extended to Turkey and the N Caucasus. During this ages of several sites have been revised. An increasing Indo-Pacific influence was recognized in the late Early Miocene caused by the gradual narrowing and shallowing of the Tethyan Seaway connecting the Western and Eastern Tethys. The European orthophragmine zonation has been refined, the late Middle and the Late Eocene have been subdivided in more detail based on Heterostegina. Larger foraminiferal zones around the Early/Middle Eocene boundary have been correlated with planktonic ones in a sequence from the N Caucasus. The superposition of some Oligo-Miocene larger foraminiferal zones has been proven directly in the field

Multiple deprotonation of primary aromatic diamines by LiAlH4.

Reaction of LiAlH4 with 1,2-phenylenediamine (1H4) in THF results in formation of the metallocyclic amido-/imido complex [{Al(1H2)}2{Al(1H)2}2][Li(THF)2]4 (3), while in the presence of various Lewis base ligands 1,8-diaminonaphthalene (2H4) gives the amido-('ate') complexes [Al(2H2)2](-)[Li(LL')](+) [L = THF, L' = PMDETA (N,N,N',N',N''-pentamethyldiethylenetriamine) (4); L = L' = TMEDA (N,N,N',N'-tetramethylethylenediamine) (5)]. The latter complexes provide evidence of intermediates in the proposed reaction pathway for formation of the cyclic framework of the tetraanion [{Al(1H2)}2{Al(1H)2}2](4-) of 3.We thank the EU (ERC Advanced Investigator Grant for D.S.W.), the EU (R.J.L. and L.K.A.). We also thank Dr. J. E. Davies for collecting X-ray data on 3, 4 and 5.This is the author accepted manuscript. The final version is available via RSC at http://pubs.rsc.org/en/Content/ArticleLanding/2015/DT/c4dt03802a#!divAbstract

Flight Test Approach to Adaptive Control Research

The National Aeronautics and Space Administration s Dryden Flight Research Center completed flight testing of adaptive controls research on a full-scale F-18 testbed. The validation of adaptive controls has the potential to enhance safety in the presence of adverse conditions such as structural damage or control surface failures. This paper describes the research interface architecture, risk mitigations, flight test approach and lessons learned of adaptive controls research

Structural studies of Perfluoroaryldiselenadiazolyl Radicals: Insights into Dithiadiazolyl Chemistry

Synopsis Diselenadiazolyls exhibit a stronger tendency to dimerize in the solid state than their corresponding dithiadiazolyl (DTDA) radicals, reflected in a range of dimerization modes for (p-XC6F4CNSeSeN)2, which contrast with those of the monomeric DTDA radicals, p-XC6F4CNSSN. The structure of (p-NCC6F4CNSeSeN)2 reflects a buildup of molecular strain in order to accommodate both dimerization and structure-directing CN···Se contacts, whereas the suppression of dimerization releases molecular strain yet retains structure-directing CN···S contacts for the corresponding DTDA radical

A Rudabányai- és Aggteleki-hegység szerkezetföldtani vizsgálata = Structural geological research of the Rudabánya and Aggtelek Mts.

A Rudabányai- és Aggteleki-hegységben szerkezeti, metamorf kőzettani, geokronológiai és őslénytani megfigyelések, adatok alapján új szerkezeti képet készítettünk és új szerkezetfejlődési modellt állítottunk fel. A hegységeket a nem metamorf Aggteleki- és Bódvai-sorozat, valamint az anchizónás metamorfózist szenvedett jura (Telekesoldali) sorozat(ok) és az epizónás-anchizónás átalakultságú Tornai-sorozatok építik fel. A metamorfózis és a vele együtt járó többfázisú képlékeny deformáció a kréta időszak legelején mehetett végbe. Ezt követően a metamorf sorozatok a nem metamorf egységek talpa közelébe kerültek. Mintegy 110 és 90 millió évek között a metamorf és nem metamorf egységek sorrendje többször átrendeződött, és új takarók jöttek létre. A miocénben a Rudabányai-hegységben, és az azt magába foglaló Darnó-zónában 3 töréses deformációs fázis érintette a kőzeteket, melyek a hegység DK-i zónájában pikkelyeket, balos eltolódást hoztak létre. | On the basis of new structural, metamorphic petrological, geochronological and paleontological data a new structural geometry and evolution have been suggested for the Rudabánya and Aggtelek Hills. The area is composed of the non-metamorphosed Aggtelek and Bódva nappes and the Jurassic (Telekesoldal) and Triassic (Torna) series which suffered high-temperature anchi- to epizonal metamorphism, respectively. The metamorphism and the associated multiphase ductile deformation occurred probably in the beginning of the Cretaceous. After that the metamorphosed units were exhumed and placed at the base of non-metamorphosed units. Between 110 and 90 Ma the structural order of the metamorphosed and non-metamorphosed units were reorganized in several steps and new nappes formed. In the Miocene the Rudabánya Hills and the wider Darnó Zone were affected by 3 phases of brittle deformation, which resulted in the formation of scales and sinistral strike-slip faults along the SE boundary zone of the Rudabánya Hills