Tetraphenylethene-based mononuclear aggregation-induced emission (AIE)-active mechanofluorochromism gold(I) complexes with different auxiliary ligands.

In this study, a series of tetraphenylethene-containing gold(I) complexes with different auxiliary ligands have been synthesized. These complexes were characterized using a variety of techniques including nuclear magnetic resonance spectroscopy, mass spectrometry, and single crystal X-ray diffraction. Their aggregation-induced emission (AIE) behaviors were investigated through ultraviolet/visible and photoluminescence spectrum analyses, and dynamic light scattering measurements.

The Outcomes of Balanced Orbital Decompression for Dysthyroid Optic Neuropathy: Focusing on Choroiretinal Folds with and without Optic Disc Edema.

Purpose: To assess the outcomes of balanced orbital decompression for chorioretinal folds (CRFs) with and without optic disc edema (ODE) in dysthyroid optic neuropathy (DON).

Method: A retrospective, interventional study was performed at Sun Yat-sen Memorial Hospital from April 2018 to November 2021. We collected the medical records of 13 patients (24 eyes) with DON and CRFs.

[Pollution Characteristics and Health Risk Assessment of Heavy Metals in PM of Different Air Masses During Heating Season in Tianjin].

In order to explore the pollution characteristics and health risks of heavy metals in PM in Tianjin, heavy metal samples (Pb, Cd, Cr, As, Zn, Mn, Co, Ni, Cu, and V) in PM were analyzed from November 2020 to March 2021 using the Xact-625 heavy metal online analyzer. The spatial and temporal distribution characteristics were analyzed using the HYSPLIT model, and the health risks of heavy metals were analyzed using the US EPA risk assessment model. The results indicated that the average total concentration of the 10 heavy metal elements was (261.

Carbazole-based aggregation-induced phosphorescent emission-active gold(I) complexes with various phosphorescent mechanochromisms.

A series of carbazole-containing gold(I) complexes modified with different substituents were successfully designed and synthesized, and their molecular structures were characterized by nuclear magnetic resonance spectroscopy and mass spectrometry. The aggregation-induced behaviors of these gold(I) complexes were studied by ultraviolet/visible and photoluminescence spectroscopy. Meanwhile, their mechanical force-responsive emissive properties were also investigated solid-state photoluminescence spectroscopy.

Eye Habits Affect the Prevalence of Asthenopia in Patients with Myopia.

Purpose: This study aims to explore the risk factors of asthenopia in the myopic population.

Methods: In this cross-sectional study, myopia patients were inquired about their eye habits and were requested to complete an asthenopia questionnaire and ocular examinations. Age, gender, occupation, anisometropia, eye care education, weekly outdoor activity time, duration of continuous near work, daily screen time, dry eye, near phoria, and binocular accommodative facility were calculated using the Student's test-test, Mann Whitney test, and Pearson's chi-square test.

[Characteristics and Meteorological Factors of PM-O Compound Pollution in Tianjin].

The characteristics, pollutant concentration distribution, and key meteorological factors of PM-O compound pollution in Tianjin were analyzed based on the high-resolution online monitoring data of PM, Oand meteorological data observed in Tianjin from 2013 to 2019. Total PM-O compound pollution was 94 days and showed a decreasing trend by year; a significant decreasing trend of PM-O compound pollution days were observed in the early stage, with a decline rate of 52.2% from 2013 to 2015.

Highly emissive D-A-π-D type aggregation-induced emission (AIE) or aggregation-induced emission enhancement (AIEE)-active benzothiadiazole derivatives with contrasting mechanofluorochromic features.

Mechanochromic luminophors with strong solid-state emission are promising candidates for high-contrast mechanochromic luminescence materials. Meanwhile, mechanically responsive luminogenic molecules with tricolor switching are highly desirable but are seldom reported. In this work, three anthracene-based donor-acceptor-π-donor (D-A-π-D) type benzothiadiazole derivatives were designed and synthesized.

[Characteristics and Sources of PM-O Compound Pollution in Tianjin].

The characteristics and sources of PM-O compound pollution were analyzed based on the high-resolution online monitoring data of PM, O and volatile organic compounds(VOCs) observed in Tianjin from 2017 to 2019. The results showed that total PM-O compound pollution was 34 days, which only appeared between March and September and slightly increased by year. The peak value of (O)(301-326 μg·m) appeared when (PM) ranged from 75 μg·m to 85 μg·m.

[Formation and Prevention of Secondary Nitrate in PM in Tianjin].

To study the formation and approaches to controlling secondary nitrate in PM, the ionic compositions of PM, pH of aerosols, variations in NH-NH and HNO-NO concentrations, and the joint NH/HNO sensitivity regime map of ammonium nitrate were investigated based on high-resolution online monitoring data for an urban site in central Tianjin from 2018 to 2019. The results showed that the average concentration of PM was 58μg·m, and the main ionic compositions of PM were nitrate (NO), ammonium (NH), sulfate (SO), Cl, and K with corresponding mass percentages of 18.4%, 11.

[Characteristics of Secondary Organic Particles and the Potential Formation of SOA from VOCs During Wintertime Heavy Pollution Episodes in Tianjin].

The characteristics of secondary organic reactions were studied based on supersite monitoring data from January to March, 2019, in Tianjin. During heavy pollution episodes, SOC (secondary organic carbon) accounted for between 3.1% and 3.

[Characterization of Two Heavy Pollution Episodes in Tianjin in 2020].

High-resolution online monitoring data from January to February in 2020 was used to study the characterization of two heavy pollution episodes in Tianjin in 2020; the heavy pollution episode that lasted from January 16 to 18, 2020 (referred to as episode Ⅰ) and that from February 9 to 10, 2020 (referred to as episode Ⅱ) were analyzed. The results showed that two heavy pollution episodes were influenced by regional transportation in the early stage and local adverse meteorological conditions in the later stage. During these episodes, the average wind speed was low, the average relative humidity was close to 70%, and relative humidity approached the saturated, the boundary layer heights were below 300 m, and the horizontal and vertical diffusion conditions were poor.

[Vertical Distribution and Transport of PM During Heavy Pollution Events in the Jing-Jin-Ji Region].

Based on vehicle-borne tethered balloon measurements, the vertical distribution of particulate matter (PM) concentrations were observed in Gaocun in the Wuqing District of Tianjin from December 17 to 19, 2016, during a period of heavy pollution. Using observational data, the transport flux of PM in the Jing-Jin-Ji region was calculated. The results showed that the mixed layer was low at only 200 m during the heavy pollution period.

[Secondary Inorganic Pollution Characteristics During Heavy Pollution Episodes of 2017 in Tianjin].

Based on monitoring data collected at the supersite of Tianjin in 2017, seven typical heavy pollution episodes were investigated. The concentrations of air pollutants and secondary inorganic transformation products were analyzed to study the secondary inorganic pollution characteristics during the heavy pollution episodes. Compared to clean weather, concentrations of NO and SO during the heavy pollution episodes increased at rapid growth rates.

Protosappanin a inhibits osteoclastogenesis via reducing oxidative stress in RAW264.7 cells.

Protosappanin A (PrA), obtained from the traditional Chinese herbal medicine, (), possesses a lot of pharmaceutical activities. Typically, it is a potent antioxidant. This study makes an effort to test its protective effects against osteoporosis by partially reducing oxidative stress in RAW264.

[Arthroscopic treatment of tibial intercondylar eminence fractures in children with single Kirschner wire and suture avoiding epiphyseal line fixation technique].

Objective: To discuss arthroscopic technique of single Kirschner wire and suture avoiding epiphyseal line fixation for tibial intercondylar eminence fracture and its clinical results.

Methods: From May 2008 to December 2012, 21 patients (13 males, 8 females, ranging in age from 6 to 14 years old) with tibial intercondylar eminence fracture were treated arthroscopically with single Kirschner wire and suture avoiding epiphyseal line fixation technique. According to Meyers and McKeever classification, 7 patients were type II, 10 patients were type III, and 4 patients were type IV.

[Case-control study on the modified ilioinguinal incision of anterior approach for the treatment of pelvic and acetabular fractures].

Objective: To study modified ilioinguinal approach through the retrospective analysis on the surgical treatment of 63 patients with pelvic and acetabular fractures through anterior approach.

Methods: From January 2006 to January 2013, 63 patients with pelvic and acetabular fractures were treated with the ilioinguinal anterior approach, including 45 males and 18 females, ranging in age from 12 to 68 years old, with an average of (37.71 +/- 13.

[Characteristics of treating dislocation and fracture of sacroiliac joint through anterior and posterior approches].

Objective: To investigate characteristics of treating dislocation and fracture of sacroiliac joint through anterior and posterior approaches.

Methods: Between January 2006 and September 2012, 39 patients with dislocations and fractures of sacroiliac joint were treated with operation. There were 28 males and 11 females, aged 12 to 64 (mean, 41.