National Farmers Union Property and Casualty Company v. Wesern Casualty and Surety Company : Brief of Respondent

Appeal from a Judgment of the District Court of Salt Lake County Honorable Dean E. Conder, Judg

SDN-controlled and Orchestrated OPSquare DCN Enabling Automatic Network Slicing with Differentiated QoS Provisioning

In this work, we propose and experimentally assess the automatic and flexible NSs configurations of optical OPSquare DCN controlled and orchestrated by an extended SDN control plane for multi-tenant applications with differentiated QoS provisioning. Optical Flow Control (OFC) protocol has been developed to prevent packet losses at switch sides caused by packet contentions.Based on the collected resource topology of data plane, the optical network slices can be dynamically provisioned and automatically reconfigured by the SDN control plane. Meanwhile, experimental results validate that the priority assignment of application flows supplies dynamic QoS performance to various slices running applications with specific requirements in terms of packet loss and transmission latency. In addition, the capability of exposing traffic statistics information of data plane to SDN control plane enables the implementation of load balancing algorithms further improving the network performance with high QoS. No packet loss and less than 4.8 us server-to-server latency can be guaranteed for the sliced network with highest priority at a load of 0.5

Efficacy and safety of a NiTi CAR 27 compression ring for end-to-end anastomosis compared with conventional staplers: A real-world analysis in Chinese colorectal cancer patients

OBJECTIVES: This study aimed to evaluate the safety and efficacy of a new nickel-titanium shape memory alloy compression anastomosis ring, NiTi CAR 27, in constructing an anastomosis for colorectal cancer resection compared with conventional staples. METHODS: In total, 234 consecutive patients diagnosed with colorectal cancer receiving sigmoidectomy and anterior resection for end-to-end anastomosis from May 2010 to June 2012 were retrospectively analyzed. The postoperative clinical parameters, postoperative complications and 3-year overall survival in 77 patients using a NiTi CAR 27 compression ring (CAR group) and 157 patients with conventional circular staplers (STA group) were compared. RESULTS: There were no statistically significant differences between the patients in the two groups in terms of general demographics and tumor features. A clinically apparent anastomotic leak occurred in 2 patients (2.6%) in the CAR group and in 5 patients (3.2%) in the STA group (p=0.804). These eight patients received a temporary diverting ileostomy. One patient (1.3%) in the CAR group was diagnosed with anastomotic stricture through an electronic colonoscopy after 3 months postoperatively. The incidence of postoperative intestinal obstruction was comparable between the two groups (p=0.192). With a median follow-up duration of 39.6 months, the 3-year overall survival rate was 83.1% in the CAR group and 89.0% in the STA group (p=0.152). CONCLUSIONS: NiTi CAR 27 is safe and effective for colorectal end-to-end anastomosis. Its use is equivalent to that of the conventional circular staplers. This study suggests that NiTi CAR 27 may be a beneficial alternative in colorectal anastomosis in Chinese colorectal cancer patients

Preparation of Sodium Lignosulfonate/Chitosan Adsorbent and Application of Pb2+ Treatment in Water

Industrial wastewater has brought huge disasters to water resources and soil and has seriously affected the growth of animals and plants. There is an urgent need for a green and efficient adsorbent to solve the problem of water pollution. Sodium lignosulfonate and chitosan undergo free radical polymerization to form a lignin/chitosan adsorbent, which is used to treat Pb2+ in water pollution. An orthogonal experiment was used to optimize the content of sodium lignosulfonate, chitosan, cross-linking agent and initiator to obtain the adsorbent with the best adsorption performance. The adsorbents were characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), thermal analysis and zeta potentiometry. The influence of different conditions on the adsorption of heavy metal ions by lignosulfonate/chitosan adsorbent was explored, and a kinetic and isotherm model was established. The results showed that the adsorption capacity of Pb2+ was 345 mg g−1 when the adsorbent was 0.01 g, the concentration of heavy metal ions was 100 mg L−1 and pH was 7. The adsorption process of lignosulfonate/chitosan is a kind of spontaneous adsorption mode, which is mainly composed of electrostatic adsorption and chemical adsorption

Financialization under state entrepreneurialism in China

This special issue comprehensively researches China’s financialization and examines the transformation of its development model, state development corporations, local government bonds, productivity, and the extent and characteristics of financialization. While it is widely known that the state plays an important role in enabling and constraining financialization, these papers further reveal that China’s financialization originates from the state’s deployment of financial approaches to urban and regional development under state entrepreneurialism. Through internalizing financial logic into the state development system, the expansion of financial operations reflects the state’s developmental intention and increases its governance capability. Thus, financialization is not a unidirectional process but involves extensive state involvement and participation in finance, to such an extent that it often simultaneously evolves into greater interference and de-financialization

Intergenerational financial support for homeownership and co-residence in Chinese cities

Drawing on questionnaire data from six cities in China, this study explores the relationship between intergenerational financial support from parents in adult children's housing purchases and key life course facts. The regression results indicate an inverted ‘U’-shaped relationship between the age of young adults and the occurrence of financial support from their parents in housing purchases. Intergenerational co-residence, popular in China, is significantly and positively associated with financial support from parents for housing purchases. This suggests that many Chinese parents seek to achieve further intergenerational reciprocity through co-residence after giving financial support to their adult children. Interestingly, the regression results on samples without loans show that intergenerational co-residence is not significantly related to occurrences of parental financial support in housing purchases. This indicates that more affluent families purchasing housing without loans may not need to engage in intergenerational reciprocity through intergenerational co-residence. This paper provides new empirical evidence of intergeneration wealth transfers on homeownership in the context of China. It enriches our understanding of the relationship between intergenerational financial support for homeownership and the phenomenon of co-residence

Performance assessment of OPSquare data center network with elastic allocation of WDM transceivers

Under realistic OPSquare data center traffic model, the impact of the packet loss ratio and sever end-to-end latency of elastic allocation of WDM transmitters at top of rack (ToR) is numerically investigated. Results show that with limited 50 KB buffer, a sever end-to-end latency lower than 2 μs and packet loss ratio below 10-6 could be guaranteed for different traffic patterns and loads when the WDM transmitters at ToRs are adaptively allocated. An analyses on costs and power consumption indicate that the elastic allocation of WDM transmitters will not cause dramatic fluctuation in power consumption, while cost will increase with more usage of transmitters

Experimental Assessment of Automatic Optical Metro Edge Computing Network for Beyond 5G Applications and Network Service Composition

The upcoming 5G and beyond 5G heterogeneous applications with different quality of service (QoS) will impose strict latency, bandwidth, and flexibility requirements on optical metro access networks. Conventional cloud computing is gradually unable to fulfill the application requirements, especially on latency due to the distance causing propagation and networking delay. Therefore, the edge computing that distributed in metro access networks is promising to serve the applications with the requirements of ultra-low latency. As the resources of edge computing nodes are restricted and light compared with cloud data centers (DC), it is significant to manage across multiple edge computing nodes to enable joint allocation of the distributed resources. To address this issue, the optical metro network infrastructure should be flexible on the data plane and able to interact with the control and orchestration plane to automatically adapt to the communication requirements of multiple edge computing nodes. Related works have been focused on the simulation and numerical study. In this paper, an experimental testbed of a flexible optical metro access network including hardware and software components is built, and the performance is validated with real server traffic. The presented network system is based on the field-programmable gate array (FPGA), and hardware adapted open source network management and telemetry tools. Different from the commercial electrical switches, FPGA is fully programmable making it able to flexibly forward and monitor the traffic, in the meantime, to dynamically control the optical devices according to the feedback from the control plane. By exploiting dynamic software defined networking (SDN) control and network service orchestration, the proposed network is able to establish capacity adapted network slices for edge computing connections. Successful telemetry-assisted dynamic network service chain (NSC) generation, automatic bandwidth resources assignment, and QoS protection are demonstrated

Flexibility assessment of the reconfigurable OPSquare for virtualized data center networks under realistic traffics

Resources allocation of the reconfigurable OPSquare data center to support multi-tenant virtual networks are assessed under realistic traffics. End-to-end latency < 2μ s and packet loss <10 -4 are guaranteed for different traffic patterns by elastically configuring the WDM transmitters and optical switches

Performance assessment of metro networks based on fast optical add-drop multiplexers under 5G traffic applications

We numerically assess the performance of metro networks based on Fast Optical Add-Drop Multiplexers (FOADM) nodes under modelled traffics of multiple 5G applications. Simulation results show a packet loss < 1 E-5 with <400us latency for a network load of 0.5