Results 71 to 80 of about 220,587 (256)

“Crochetage” (Notch) on R wave in inferior limb leads: A new independent electrocardiographic sign of atrial septal defect [PDF]

open access: yes, 1996
Objectives. This study sought to determine the clinical significance of a “crochetage” pattern—a notch near the apex of the R wave in electrocardiographic (ECG) inferior limb leads—in secundum atrial septal defect.Background.
Besse, Bruno   +5 more
core   +1 more source

Hybrid Framework Materials: Next‐Generation Engineering Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Hybrid organic–inorganic materials merge the unique properties of organic and inorganic compounds, enabling applications in optoelectronics, gas storage, and catalysis. This review explores metal‐organic frameworks, hybrid organic–inorganic perovskites, and the emerging field of hybrid glasses, emphasizing their structures, functionalities, and ...
Jay McCarron   +2 more
wiley   +1 more source

AN INHERITANCE OF IDIOPATHIC CARDIAC CONDUCTION DISORDERS

open access: yesРоссийский кардиологический журнал, 2014
Aim. To study relationship of idiopathic atrioventricular and intravenricular disorders of cardiac conductivity with mononucleotide polymorhism (MNP) A/G gene TBX5. Material and methods.
S. S. Tretyakova   +6 more
doaj   +1 more source

High‐Entropy Ti, Zr, Hf, Ta Multiphase Diboride with Deformation Resistance up to 2000 °C

open access: yesAdvanced Engineering Materials, EarlyView.
Ceramics are brittle and strength decreases with temperature. The multiphase high‐entropy (Ti0.25Ta0.25Hf0.25Zr0.25)B2 with heterogeneity at the nano‐ and microscale demonstrates deformation resistance up to 2000 °C, with maximum bending strength at 1800 °C.
Petre Badica   +3 more
wiley   +1 more source

Distinguishing low frequency mutations from RT-PCR and sequence errors in viral deep sequencing data [PDF]

open access: yes, 2015
There is a high prevalence of coronary artery disease (CAD) in patients with left bundle branch block (LBBB); however there are many other causes for this electrocardiographic abnormality.
Haydon, Daniel T.   +6 more
core   +2 more sources

Regulating the Zn Electrode/Electrolyte Interface Toward High Stability– Insights from the Resting Time Impact on Zn Electrode Performance

open access: yesAdvanced Functional Materials, EarlyView.
In this study, a close correlation among the resting period, the cyclability of the zinc anode, and the evolution of byproduct zinc hydroxide sulfate (ZHS) is identified. Furthermore, it is shown that proper control of the interfacial ZHS can significantly enhance the cycle performance of the zinc anode by effectively inhibiting corrosion and promoting
Zhijun Cai   +6 more
wiley   +1 more source

Alternating QRS Morphologies and PR Intervals After Transcatheter Aortic Valve Replacement

open access: yesJACC: Case Reports, 2020
Alternating bundle branch block pattern on electrocardiogram (ECG) is a concerning finding with important prognostic implications. This ECG challenge explores the electrophysiological mechanism of a case of alternating bundle branch block with ...
Vivek T. Kulkarni, MD, MHS, EdM   +2 more
doaj  

Arrhythmogenic right ventricular cardiomyopathy associated with severe left ventricular involvement in a cat. [PDF]

open access: yes, 2009
An 8-year-old, 4 kg, intact female, domestic shorthaired cat was referred for tachypnea and pleural effusion. A 24-h Holter recording showed numerous polymorphic ventricular premature complexes with left and right bundle branch block morphology ...
Basso C   +3 more
core   +1 more source

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

open access: yesAdvanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu   +14 more
wiley   +1 more source

The link in Linking

open access: yesIndian Pacing and Electrophysiology Journal, 2013
We present 2 cases of the slow-fast form of AVNRT with initially narrow QRS complexes followed by sudden unexpected transition to persistently wide QRS complexes due to aberrant intraventricular conduction.
Jane C. Caldwell   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy