Publications by authors named "Zhi Ru Li"

To explore the experience of post-traumatic growth among parents of children with biliary atresia undergoing living-related liver transplantation.: Participants were recruited within 2 weeks of their child's transplant surgery using purposive sampling. Transcripts were analyzed using Colaizzi's descriptive analysis framework, with collaborative analysis conducted using NVivo 12 software and a post-traumatic growth model.

View Article and Find Full Text PDF

Background: With advances in medical technologies, more children with chronic diseases are now living on into adulthood. The development of proficient self-management skills is essential for adolescents and young adults to transition from pediatric to adult health care services. An innovative way to improve the current care model and foster self-management skills could be through eHealth or mHealth (mobile health) interventions, in particular, when considering the rising ownership of digital technology by adolescents and young adults.

View Article and Find Full Text PDF

Background: Intra-abdominal hypertension has been proven to be an independent risk factor for death in critically ill patients. Accurate monitoring of intra-abdominal pressure is of great significance for early identification and timely intervention of intra-abdominal hypertension to prevent further progression to abdominal compartment syndrome. Paediatric critical care nurses play an important role in constant observation and recognition of subtle and dynamic changes in intra-abdominal pressure of critically ill children.

View Article and Find Full Text PDF

The effect of an oriented external electric field (EEF) on materials has led to the ongoing development, which stimulates us to consider whether intracage microelectric fields (IMEFs) can be used to substitute for the EEF. Focusing on the manipulation and evaluation of the IMEF of asymmetric molecular containers, the host-guest compounds of interesting pineapple-shaped Y@CX (X = vacant, Cl, F, and H; Y = NHCl, HO-Cl, and 2HO) are theoretically constructed and the strength of the IMEF was evaluated by the intrapotential energy surface analysis by using the point charge ( = +1) scanning method. Interestingly, the left and right halves of each cage are like two IMEFs connected in reverse series.

View Article and Find Full Text PDF

Background And Purpose: To investigate the effect of combining Endostar with concurrent chemoradiotherapy (ECCRT) compared to concurrent chemoradiotherapy (CCRT) on the regression rate of retropharyngeal lymph nodes (RLNs) and the relationship between regression rate of RLNs and prognosis of patients with locally advanced nasopharyngeal carcinoma (LANPC).

Methods: A total of 122 LANPC patients with RLNs metastasis were included. Metastatic RLNs were delineated both before and after treatment slice by slice on the magnetic resonance images cross-section.

View Article and Find Full Text PDF

Aim: To provide a comprehensive overview on emerging direct and alternative methods for intra-abdominal pressure (IAP) measurement techniques.

Methods: This was a scoping review study following Arksey and Malley's framework. The PubMed, EMBASE, Web of Science, EBSCO, Scopus and ProQuest databases were searched, and we only considered studies published from 2000 as we have extended the data from two previous reviews.

View Article and Find Full Text PDF

To identify superalkali-alkaline earthide ion pairs, it's theoretically shown that, as a novel class of excess electron superalkali compounds, both chair and boat forms of (AM-HMHC)-AM' (AM = Li, Na, and K; AM' = Be, Mg, and Ca; HMHC = 1,4,7,10,13,16-hexamethyl-1,4,7,10,13,16-hexaazacyclooctadecane) are good candidates. An attractive superalkali-alkaline earthide ion pair in (AM-HMHC)-AM' is firstly exhibited, which possesses alkaline-earthide characteristics and nonlinear optical response superior to similar M(calix[4]pyrrole)M' (M = Li, Na, and K; M' = Be, Mg, and Ca) with high stability. The electronic and vibrational second order hyperpolarizabilities and the frequency-dependent first hyperpolarizabilities of (AM-HMHC)-AM' are presented.

View Article and Find Full Text PDF

To provide a novel intramolecular self-redox switch, a boron-based sandwich-like complex RbBeBBe'Rb' is achieved by using theoretical computations. An applicable oriented external electric field (OEEF) can result in the occurrence of intramolecular self-redox (IMSR) with a long-range electron transfer from tetrahedral Be'Rb' to RbBe and subsequently [RbBe][B][Be'Rb'] () changes to [RbBe][B][Be'Rb'] (), accompanying high-performance NLO switchable effect for both static and dynamic first hyperpolarizability (β). [RbBe][B][Be'Rb'] (off-form) owns zero of dipole moment (μ) and β, while [RbBe][B][Be'Rb'] (on-form) exhibits a μ of 3.

View Article and Find Full Text PDF

Problem: The transition from paediatric-centred to adult healthcare services in adolescent solid organ transplantation recipients is a period of increased risk and vulnerability, the issues related to healthcare transition have become key concerns to the healthcare community.

Eligibility Criteria: Qualitative studies of any design and qualitative components of mixed method studies that explored the experiences of healthcare transition among adolescent solid organ transplant recipients, parents, and healthcare professionals were included.

Sample: Nine articles were finalised and included in the review.

View Article and Find Full Text PDF

Background: Intra-abdominal hypertension is a comorbid condition in critically ill children, is an independent predictor of mortality, and has harmful effects on multiple organ systems through renal, pulmonary or hemodynamic damage. Intra-abdominal pressure monitoring is widely used in clinical practice because it is a safe, accurate, inexpensive, and rapid method for the clinical diagnosis of intra-abdominal hypertension.

Objective: To improve pediatric critical care nurses' understanding of and ability to perform intra-abdominal pressure monitoring and provide a reference for standardizing intra-abdominal pressure monitoring in clinical practice.

View Article and Find Full Text PDF

By replacing one Al or N atom of aluminum nitride nanocage AlN with an alkaline-earth metal atom, two series of compounds, namely, M@AlN and M@AlN (M = Be, Mg, and Ca), were constructed and investigated in theory. The substituted effect of alkaline-earth metal on the geometric structure and electronic properties of AlN is studied in detail by density functional theory (DFT) methods. The calculated binding energies, HOMO-LUMO gaps, and VIE values of these compounds reveal that they possess high stability, though the NBO and HOMO analyses show that they are also excess electron compounds.

View Article and Find Full Text PDF

To combine both electride and alkalide characteristics in one molecular switch, it is shown herein that the phenalenyl radical and the M ring (M-PHY, M = Li, Na, and K) stacked with parallel and vertical geometries are good candidates. The former geometry is the superalkali electride e⋯M-PHY while the latter geometry is the superalkalide M-M-PHY. The superalkalide M-M-PHY may isomerize to the superalkali electride e⋯M-PHY (M = Li, Na, and K) using suitable long-wavelength irradiation, while the latter may isomerize to the former with suitable short-wavelength irradiation.

View Article and Find Full Text PDF

The exploration of innovative molecular switches has resulted in large developments in the field of molecular electronics. Focusing on a single molecular switch with different forms exhibiting different electride features, potassium-atom-doped all-cis 1,2,3,4,5,6-hexafluorocyclohexane K-F6C6H6 was studied theoretically. It was found that an oriented external electric field can drive excess electron transfer from the region outside of the K atom to that outside of F6C6H6.

View Article and Find Full Text PDF

A new superatom of dual valence states, namely AlLi, has been proposed to further enrich the "three-dimensional periodic table". It bears great resemblance to group IVA elements in many aspects. Chief among them is that AlLi favors both +2 and +4 oxidation states, which makes it analogous to the heavier carbon-group elements.

View Article and Find Full Text PDF

A novel intra-molecular self-redox switch, LiNMg, is constructed theoretically. Our investigation showed that a suitably oriented external electric field (OEEF) can drive a long-range excess electron transfer from Mg atoms to Li rings. And subsequently, an interesting intra-molecular self-redox from LiNMg to LiNMg accompanying the large different electronic static first hyperpolarizability (β) is exhibited.

View Article and Find Full Text PDF

The possibility of using coinage metal atoms as excess electron acceptors is examined for the first time by designing a new class of M-1-M' (M = Li, Na, and K; M' = Cu, Ag, and Au) compounds termed "coinage metalides" on the basis of an intriguing Janus-type all-cis1,2,3,4,5,6-hexafluorocyclohexane (1) molecule. Under the large facial polarization of 1, the outermost ns electrons of alkali metal atoms can be transferred to coinage metal atoms, forming diffuse excess electrons around them. Consequently, the resulting M-1-Cu and M-1-Ag compounds exhibit significantly large nonlinear optical (NLO) responses.

View Article and Find Full Text PDF

Focusing on innovative high-performance single-pole double-throw nonlinear optical (NLO) molecular switches, two C3v configurations (1 and 3) and one D3h configuration (2) of bipyramidal CaN3Ca have been obtained by using quantum mechanical methods. Not only are 1, 2, and 3 alkaline-earth-based aromatic superalkalis, but they are also interesting electrides. The salt-like electronic structures of e-Ca2+N33-Ca2+ (1) and Ca2+N33-Ca2+e- (3) with localized redox centres are rare inorganic Robin-Day class II-type structures, and e0.

View Article and Find Full Text PDF

The potential application of the jellium model as guidance in the rational design of bimetallic superalkali cations is examined under gradient-corrected density functional theory for the first time. By using Li, Mg, and Al as atomic building blocks, a series of bimetallic cationic clusters with 2, 8, 20, and 40 valence electrons are obtained and investigated. As the corresponding neutral clusters tend to lose one valence electron to achieve closed-shell states in the jellium model, these studied cations exhibit much lower vertical electron affinities (EA , 3.

View Article and Find Full Text PDF

Numerous isomeric equilibrium structures have been identified for the AlBe (x = 1-9) nanoalloy clusters by using the stochastic search procedure in combination with density functional theory calculations. The relative stability and various electronic properties of the lowest-energy AlBe (x = 0-10) clusters have been systematically studied by using the B3LYP and CCSD(T) methods with the aug-cc-pVDZ basis set. The evolution of the binding energies, the second difference in energy, HOMO-LUMO gaps, vertical detachment energies, vertical ionization potentials, vertical electron affinities, and hardness with the increasing number of Be atoms in the most stable AlBe (x = 0-10) clusters demonstrates that the global minimum of AlBe cluster possesses a special stability.

View Article and Find Full Text PDF

By substituting boron atoms for selected carbon atoms of a graphene quantum dot (GQD) model, namely a coronene molecule, the substituent effect on its geometric and electronic structure, as well as nonlinear optical response has been systemically investigated in theory. Our computations reveal that the boron substitution leads to a similar noncentrosymmetric apophysis structure for the boron-substituted coronene in singlet and triplet states. Noticeably, due to the small energy difference of 2.

View Article and Find Full Text PDF

The interaction between the aluminum trimer and representative (super)halogens X (X = F, LiF, BeF, BF) and (super)alkalis M (M = Li, FLi, OLi, NLi) has been theoretically investigated at the MP2/6-311+(3df) level. Various geometrical structures were obtained for the resulting Al-X and Al-M superatom compounds, respectively. Natural bond orbital analysis reveals that the Al moiety exists in a cationic state in Al-X while in an anionic state in Al-M compounds.

View Article and Find Full Text PDF

Alkalides, as a representative kind of excess electron compounds, have been demonstrated to be potential nonlinear optical (NLO) materials with large static first hyperpolarizabilities (β). The possibility of utilizing coinage metal atoms as a novel excess electron source to design a series of alkalides, i.e.

View Article and Find Full Text PDF
Article Synopsis
  • A study explored various magnesium (Mg) and calcium (Ca) cations to develop new superalkali compounds, finding many to be pseudoalkali or superalkali due to low electron affinities.
  • The stability of these cations was supported by significant energy gaps between their highest occupied and lowest unoccupied molecular orbitals (HOMO-LUMO) and positive dissociation energies.
  • Alkaline-earth-metal cations showed advantages over traditional alkali metals in terms of higher binding energy and better stability as the size of the clusters increases, suggesting potential new compounds when paired with halogens.
View Article and Find Full Text PDF

The possibility of using superalkali clusters instead of alkali atoms as ligands to design a class of cationic compounds, referred to as hyperalkali cations, has been examined by using gradient-corrected density functional theory. By taking typical superalkalis (FLi, OLi, and NLi) as examples, a series of hyperalkali cations ML [M = (super)halogen; L = superalkali] have been constructed and investigated. Calculational results show that all the superalkali moieties preserve their geometric and electronic integrity in these proposed cations.

View Article and Find Full Text PDF

Excess-electron compounds can be considered as novel candidates for nonlinear optical (NLO) materials because of their large static first hyperpolarizabilities (β ). A room-temperature-stable, excess-electron compound, that is, the organic electride Na@(TriPip222), was successfully synthesized by the Dye group (J. Am.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_session6vtnf59c4e95jolprt8hpprq71tle2j3): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once