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This brief presents an operational transconductance amplifier (OTA) linearization technique that is applied to a low-noise amplifier (LNA) and an OTA-C filter. Simulations show the effectiveness of the proposed technique on the LNA, whose noise and gain performance remain unaffected while the linearity is significantly improved. Measurements of the 80-MHz fourth order Butterworth OTA-C filter are
Background: Acute pancreatitis (AP) is a common and potentially severe disease. Early identification of severity grade is crucial for the outcome of the patient. For study approaches and comparison of inter-institutional data the AP patients need to be uniformly classified.The aims of this thesis were to investigate the early stratifiation capacity of biomarkers in AP and to assess the morphologic
Postwar cities demonstrate the most persistent continuities of war in peace. This effectively forces people into divided and politicised lives, undermines city-wide urban dynamics, and hampers wider peace processes that these cities are part of. It, however, also goes against what can be and historically is expected of the city – namely to transcend divides, bridge communities, and foster co-exist
Two major fuels commonly used in compression ignition (CI) and spark ignition (SI) enginesare diesel and gasoline. The reserve of diesel and gasoline is limited, however the combustion ofthese fuels giving rise to air pollution. This calls for the search for alternative fuels, preferablyrenewable fuels, and the development of more efficient and clean combustion technologies forinternal combustion
Two-particle angular correlations were measured in pp collisions at s=7 TeV for pions, kaons, protons, and lambdas, for all particle/anti-particle combinations in the pair. Data for mesons exhibit an expected peak dominated by effects associated with mini-jets and are well reproduced by general purpose Monte Carlo generators. However, for baryon–baryon and anti-baryon–anti-baryon pairs, where both
The production cross sections for prompt charmed mesons D 0, D +, D ∗ + and Ds+ were measured at mid-rapidity in proton–proton collisions at a centre-of-mass energy s=7TeV with the ALICE detector at the Large Hadron Collider (LHC). D mesons were reconstructed from their decays D 0→ K -π+, D +→ K -π+π+, D ∗ +→ D 0π+, Ds++→K-K+π+, and their charge conjugates.With respect to previous measurements in
We demonstrate junctionless tri-gate MOSFETs utilizing a single layer 7 nm thick In0.80Ga0.20As (ND ∼ 1×1019 cm-3) as both channel and contacts. Devices with source and drain metal separation of 32 nm and Lg of 25 nm exhibit SS = 76 mV/dec., both the highest reported gm = 1.6 mS/μα and Ion = 160 μA/μm (VDD = 0.5 V, IOFF = 100 nA/μm) for a junctionless transistor. We also examine the influence of t
We present vertical InAs nanowire MOSFETs on Si with an In0.7Ga0.3As drain. The devices show Ion and gm/SS record performance for vertical MOSFETs and Ioff below 1 nA/μm at Vd 0.5 V. We show a device with gm=1.4 mS/μm and SS=85 mV/dec, therefore having Q-value (gm/SS) of 16. The device has Ion=330 μA/μm and 46 μA/μm at Ioff 100 nA/μm and 1 nA/μm, respectively. Furthermore, we show a device with SS
Pigment epithelium derived factor (PEDF), a ubiquitously expressed 50 kDa secreted glycoprotein, was recently discovered to regulate self-renewal of neural stem cells and have a supportive effect on human embryonic stem cell growth. Here, we analyzed expression of PEDF in the murine hematopoietic stem cell (HSC) compartments and found that PEDF is highly expressed in primary long-term HSCs. Theref
One of the promising devices to obtain electrical and thermal energy with considerable high efficiency is the solid oxide fuel cell (SOFC). The electrical energy is the result of the electrochemical reactions that occur inside the fuel cell (FC) when the reactant gases reach the so-called three-phase boundary (TPB). The nonhomogeneous and anisotropic characteristics of the layer between the gas ch
Asthma is a common airway inflammatory disease, associated with a variable degree of airway obstruction. It is a heterogeneous condition with large variations in severity and clinical presentation. Moreover, disease activity can vary from time to time. Taken together, these factors make the diagnosis, monitoring and treatment of asthma challenging. Peripheral airway inflammation has been shown to
The planetary changes associated with the Anthropocene, including climate change and extinction of species, pose severe threats to civilization, humanity, and the natural world as we know it. They also pose special challenges to the human imagination. To meet these challenges, climate change communicators use narratives. Nonfiction books intended for a general audience employ two radically differeThe planetary changes associated with the Anthropocene, including climate change and extinction of species, pose severe threats to civilization, humanity, and the natural world as we know it. They also pose special challenges to the human imagination. To meet these challenges, climate change communicators use narratives. Nonfiction books intended for a general audience employ two radically differe
Deciphering the assembly history of the Milky Way is a formidable task, which becomes possible only if one can produce high-resolution chrono-chemo-kinematical maps of the Galaxy. Data from large-scale astrometric and spectroscopic surveys will soon provide us with a well-defined view of the current chemo-kinematical structure of the Milky Way, but it will only enable a blurred view on the tempora
