Publications by authors named "Jiakun Song"

Objective: The study aimed to assess the impact of optimizing the emergency nursing process on certain outcomes in AMI patients with hypertension undergoing coronary intervention therapy.

Methods: This is a retrospective cohort study, a total of 90 patients with AMI complicated with hypertension admitted from October 2020 to March 2022 to observe the effect and safety of two different nursing methods in patients with AMI complicated with hypertension. According to the different nursing process, the subjects were divided into the optimization and conventional groups, with 45 cases in each group.

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Acute pulmonary embolism (acute PE) is the most serious manifestation of venous thromboembolism. Hierarchical nursing management is an improved option for nursing, but no study that indicated the effects of hierarchical nursing management in patients with acute PE could be found. This study aimed to explore the effects of hierarchical nursing management on the quality of nursing care and the prognosis of patients with acute PE.

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Objective: To identify rapid and accurate early diagnostic indicators for intra-abdominal infection (IAI) after general surgery.

Methods: We conducted a retrospective analysis of 3,810 general surgical patients in our hospital from August 2017 to July 2018. The predictive value of PCT, CRP, TNFα, and IL6 on postoperative days (PODs) 1 and 3 and composite indicators for complicated IAIs among surgical patients was clarified.

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Background: The electrosensory ampullary organs (AOs) and mechanosensory neuromasts (NMs) found in sturgeon and some other non-neopterygian fish or amphibians are both originated from lateral line placodes. However, these two sensory organs have characteristic morphological and physiological differences. The molecular mechanisms for the specification of AOs and NMs are not clearly understood.

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Altered behaviors have been reported in many marine fish following exposure to high CO concentrations. However, the mechanistic link between elevated CO and activation of brain regions in fish is unknown. Herein, we examined the relative quantification and location of c-Fos expression in marine medaka following acute (360 min) and short-term (7 d) exposure to CO-enriched water (1000 ppm and 1800 ppm CO).

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In this paper, a broadband low-scattering metasurface is proposed by using a combination of phase cancellation and absorption mechanisms. The metasurface is composed of two structural layers. One layer adopts the geometric phase cell that can obtain a different reflection phase by changing its orientation.

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In this paper, a broadband and tunable radar cross section (RCS) reduction structure is proposed by using the hybrid physical mechanism that is based on high-order reflections and Salisbury-type absorption. Our design combines the high-index grating structure with a traditional Salisbury screen in which the lossy sheet is made of a graphene structure. When it is illuminated by a plane wave with normal incidence, the Salisbury screen can absorb the incoming wave, and the introducing high-index grating structure could further reduce the backward scattering wave by generating high-order reflection beams, which broadens the RCS reduction bandwidth.

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Due to the strong capability to control electromagnetic (EM) wave, metasurfaces have garnered considerable interest and brought in many intriguing EM functional devices. However, most of such devices can only work in either transmitted or reflected mode, and it is still very challenging to achieve a simultaneous control of reflection and transmission in one device. Here, we present a cascaded metasurface which integrates the resonant and geometrical phase cells, to manipulate the transmitted and reflected wave independently.

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Recently, considerable attention has been focused on orbital angular momentum (OAM) vortex wave, owing to its prospect of increasing communication capacity. Here, a single-layer metasurface is proposed to realize vortex beams with different OAM modes and polarizations carried at two distinctive bands. Both the resonant and geometric (Pancharatnam-Berry) phase cells are adopted to construct this metasurface for generating the desired phase profile, and each type of phase modulation cell can independently control the vortex beam at different frequencies.

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Fish detect water motion with their mechanosensory lateral line. The basic functional unit of the lateral line is the neuromast. In most fish species, neuromasts are located in lateral line canals (canal neuromasts) or on the skin (superficial neuromasts).

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Ocean acidification is predicted to affect a wide diversity of marine organisms. However, no studies have reported the effects of ocean acidification on Indian Ocean fish. We have used the Indian Ocean medaka (Oryzias melastigma) as a model species for a marine fish that lives in coastal waters.

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In this article, a dual-band wide-angle metamaterial perfect absorber is proposed to achieve absorption at the wavelength where laser radar operates. It is composed of gold ring array and a Helmholtz resonance cavity spaced by a Si dielectric layer. Numerical simulation results reveal that the designed absorber displays two absorption peaks at the target wavelength of 10.

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The marine marbled rockfish Sebastiscus marmoratus is dependent on kelp beds and rocks for survival and reproduction. We found that sound production and hearing sensitivity in S. marmoratus are closely matched in the frequency domain.

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The lateral line found in some amphibians and fishes has two distinctive classes of sensory organs: mechanoreceptors (neuromasts) and electroreceptors (ampullary organs). Hair cells in neuromasts can be damaged by aminoglycoside antibiotics and they will regenerate rapidly afterward. Aminoglycoside sensitivity and the capacity for regeneration have not been investigated in ampullary organs.

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We present a hybrid waveguide-magnetic resonance system with split ring resonators (SRRs) periodically arranged on top of a waveguide layer. Due to the destructive interference between the electric coupling to the magnetic resonance mode generated in the SRRs and the TE/TM waveguide modes supported by the waveguide layer, double plasmon-induced transparency is obtained at the infrared wavelength. Furthermore, the PIT resonance can be dynamically tuned by the incident angle.

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Recently, several rockfish species (genus Sebastes) have been reported to be soniferous. To determine whether an additional rockfish species produces sounds, passive acoustic recordings were analyzed from captive marbled rockfish (Sebastiscus marmoratus) during the non-spawning season. Three distinct sounds were identified based on frequency features.

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Cephalopods (octopus, squid and cuttlefish) are some of the most intriguing molluscs, and they represent economically important commercial marine species for fisheries. Previous studies have shown that cephalopods are sensitive to underwater particle motion, especially at low frequencies in the order of 10 Hz. The present paper deals with quantitative modeling of the statocyst system in three cephalopod species: Octopus vulgaris, Sepia officinalis and Loligo vulgaris.

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When faced with danger, pufferfish react with both a fast-start escape response and inflation behavior. The neural basis of these stress responses in the pufferfish has not been described. The present study reveals that during inflation behavior, the buccal cavity expands and compresses as a pump to control the direction of water flow and draws water in and out.

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The skin mucus of fish acts as the first line of self-protection against pathogens in the aquatic environment and comprises a number of innate immune components. However, the presence of the critical classical complement component C1q, which links the innate and adaptive immune systems of mammalians, has not been explored in a primitive actinopterygian fish. In this study, we report that C1q is present in the skin mucus of the Siberian sturgeon (Acipenser baerii).

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This special issue of Integrative Zoology (the official journal of the International Society of Zoological Sciences and the Institute of Zoology, Chinese Academy of Sciences) is dedicated to the sensory world of fish and fisheries and the impacts of human activities. The papers in this issue are the outcome of an international conference that was held at the Institute of Marine Biosystem and Neurosciences, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China from October 29 to November 1, 2012. The conference was generously sponsored by The Shanghai Ocean University, The University of Maryland, and The University of Western Australia.

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The Siberian sturgeon (Acipenser baerii Brandt), a chondrostean, occupies an important position in the evolution of the electroreceptor. In order to more fully understanding the evolution of these receptors, we examined the development of the lateral line system during early ontogeny of the Siberian sturgeon by using light and scanning electron microscopes. We detected four major events in this process: the lateral line placodal development, the sensory ridge formation, the receptor formation and the canal formation.

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Tbx3, a member of the TBX2 subfamily of T-box gene family, encodes a transcription factor with a highly conserved DNA-binding domain, which called T-domain. Tbx3 is involved in morphogenesis and organogenesis in vertebrates, such as limb development, heart remodeling, and neural placode differentiation. In the present study, a full-length 2 908 bp Tbx3 cDNA from Acipenser baerii (AbTbx3) was obtained using RT-PCR and RACE technique, which includes a 2 166 bp complete open reading frame encoding a putative peptide of 721 amino acids.

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Light and scanning electron microscopy (SEM) were used to study the epidermal lateral line system of the Siberian sturgeon (Acipenser baerii Brandt, 1869). This system consists of mechanoreceptive neuromasts, ampullae and the electroreceptive organ. The neuromasts are located in 5 pairs of cephalic and 1 pair of trunk canals and superficially in the middle and posterior pit lines that lie dorsomedially along the top of the skull immediately adjacent to the otic ampullae field.

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The electro-receptive lateral line system appeared early in the evolutionary history of fish. Sturgeons, members of the primitive Chondrostei group, are known for their electroreceptors (ampullae of Lorenzini) on the head, which are thought to be sensitive to weak electric fields in aquatic environments and involved in feeding, mating and migration. Here, we report the results of a set of behavioral and electrophysiological experiments designed to determine the function and characteristics of the electrosense in cultured sturgeons.

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