Results 21 to 30 of about 4,754,290 (301)

Computation of edge Pi index, vertex Pi index and Szeged index of some cactus chains

open access: yesMathematica Montisnigri, 2022
A cactus chain is a connected graph in which all blocks are cycles, each cycle has at most two cut-vertices and each cut-vertex is shared by exactly two cycles. In this paper we give exact values of edge PI index and vertex PI index of an arbitrary cactus chain and vertex Szeged index of some special types of cactus chains.
openaire   +1 more source

The weighted vertex PI index

open access: yesMathematical and Computer Modelling, 2013
Abstract The vertex PI index is a distance-based molecular structure descriptor, that recently found numerous chemical applications. In order to increase diversity of this topological index for bipartite graphs, we introduce a weighted version defined as P I w ( G ) = ∑ e = u v ∈ E ( d e g ( u ) + d e g (
Aleksandar Ilic, Nikola Milosavljevic
openaire   +2 more sources

Follow-up of perfusion index and inferior vena cava collapsibility index in fluid therapy in prerenal acute renal failure

open access: yesHeliyon, 2023
Introduction: Acute renal failure (ARF), which may occur as a result of hypovolemia, is frequently diagnosed in emergency departments. It is essential to determine these patients' volume status and fluid requirement.
Nihal Koc Güdük, Taner Sahin
doaj   +1 more source

Perbedaan rata-rata pulsatility index dan resistance index arteri uterina antara preeklamsia berat dan kehamilan aterm normotensi

open access: yesMajalah Kedokteran Andalas, 2017
Pemeriksaan aliran darah menunjukkan bahwa hipertensi yang disebabkan oleh kehamilan berhubungan dengan berkurangnya sirkulasi uteroplasenta akibat perubahan abnormal histomorfologi arteri spiralis, dan pemeriksaan Doppler dapat mendeteksi perubahan ini.
Defrin Defrin, Yusrawati Yusrawati
doaj   +1 more source

Pulsatility Index as a Novel Parameter for Perfusion in Mouse Model of Hindlimb Ischemia

open access: yesCellular Physiology and Biochemistry, 2018
Background/Aims: In clinical settings, the pulsatility index (PI) has become a widely used tool for monitoring obstetrics or other vascular diseases. It is based on the maximum Doppler shift waveform derived from ultrasonography.
Hairong Xu   +5 more
doaj   +1 more source

Perfusion index as a predictor of hypotension following spinal anaesthesia in lower segment caesarean section

open access: yesIndian Journal of Anaesthesia, 2017
Background and Aims: Perfusion index (PI) is a new parameter tried for predicting hypotension during spinal anaesthesia for the lower segment caesarean section (LSCS). This study aimed at investigating the correlation between baseline perfusion index and
Devika Rani Duggappa   +5 more
doaj   +1 more source

Best-fit index for describing physical perspectives in Sasang typology

open access: yesIntegrative Medicine Research, 2015
Introduction: We examined the best-fit index for describing the constitutional or physical characteristics of Sasang typology for its universal application.
Han Chae, Youngkyu Kown
doaj   +1 more source

Remarks on Multiplicative Atom-Bond Connectivity Index

open access: yesIEEE Access, 2019
The atom-bond connectivity (ABC) index is one of the most actively studied degree-based graph invariants that are found in a vast variety of chemical applications.
Riste Skrekovski   +4 more
doaj   +1 more source

Experiencias con un nuevo índice de falta de ajuste en Tablas de Contingencia

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2012
Rudas, Clogg and Lindsay, en 1994, proposed a new index of lack of fit for contingency table analysis. For a contingency table P with N cells, and a model H, the new index is defined as the smallest \pi that satisfies the equation P_h=(1-\pi)\Pi_{1h ...
Adalberto González Debén   +1 more
doaj   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan   +18 more
wiley   +1 more source

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