Sentence examples for methods and natural from inspiring English sources

Increasingly, however, quasi-experimental methods and natural experiments are used in connection with ILSA data (Cattaneo and Wolter 2012; Jürges et al. 2005).

It is also observed from Table 5 that the optimization modeling research techniques, i.e. Linear programming, dynamic programming, MIP, gradient based methods, and natural algorithms have very low percentage (21%%).

In this present work, the interactions between carbon nanotubes and the composites of these drugs with nanotube (1, nanotube - aminolevulinic acid; 2, nanotube - tretinoin) based on the density functional theory (DFT) methods and natural bond orbital (NBO) analysis have been investigated.

Delivery systems can be categorized into physical methods, conjugation methods, and natural carrier (viruses and bacteria) and nonviral carrier methods [ 8].

The results obtained by using the receptance method are verified with those obtained by using the finite element method, and natural frequencies and mode shape behavior of the plate-shell structure under different joining configurations are illustrated in detail.

He acknowledges that different coffee bean varietals are better suited for different brewing methods and the natural flavour profiles of the various green coffee beans Giles buys will predict how he will roast and brew them.

The results were obtained from four degrees of substitution and different mixing proportions and methods using natural and recycled aggregates and superplasticizers.

We assessed contraceptive use at conception by listing seven types of contraception: combined oral contraceptives, minipills, injections, implants, intrauterine device (IUD), IUD with hormones, and other methods such as condom and natural methods.

Those using non-hormonal contraceptive methods such as condoms and "natural" methods had a significantly decreased OR for the risk hypospadias in the crude analysis, but not in the multivariable analysis.

Among the contraceptive methods, costless methods such as withdrawal and natural family planning are included in the survey.

In case of females, the contraceptive methods available worldwide include oral contraceptive (OC) pills, injectable contraceptives, contraceptive implants, intrauterine devices, contraceptive vaginal ring, barrier methods, surgical sterilization, spermicides and natural family planning methods.